Instruction/ maintenance manual of the product LaserJet 9040n HP
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HP L as erJet 9 000/9 0 4 0/9 0 5 0 Se r v i ce Man ual.
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HP LaserJet 9000, 9 040, and 90 50 Series printers Service ________ _____ ________.
Copyright and License © 2005 Copyright Hewlett-P ackard Dev elopment Com pany , LP Reproduction, adaptation or translat ion without prior writ ten permiss ion is prohibited, except as allowed under the copyright laws . P art number : Q3721-90963 Edition 1, 4/2005 The inf orma tion contained herein is subject to change without notice.
iii T ab le of contents Table of contents List of tables List of figures 1 Product information Product fea tures of the HP LaserJe t 9000 Ser ies print ers . . . . . . . . . . . . . . . . . . 2 Product fea tures of the HP LaserJe t 9040/9 050 Series printers .
iv Table o f conte nts Retrieve j ob menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 8 Information menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
v Tray 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Tray 4 driver P CA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Power supp ly .
vi Tabl e of conte nts Controller fan (fan 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 5 Jetlink c onnector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 6 Fuser-connec tor hold er assemb ly .
vii Sensor tes t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222 Light-patter n inter pretation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223 Jam trou bleshoot ing .
viii Tab le of contents Index.
ix List of tab les Table 1. Feat ures of th e HP La serJet 900 0 Series p rinters . . . . . . . . . . . . . . . . . 2 Table 2. Features of the HP Lase rJet 904 0/9050 Ser ies prin ters . . . . . . . . . . . . 4 Table 3. Con figurati on compari son . .
x List of ta bles Table 50. Tray 4 main bo dy (2 of 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287 Table 51. Tray 4 drive as sembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288 Table 52. Tray 4 PCA lo cation .
xi List of figures Figure 1. Sam ple iden tification l abel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Figure 2. Exter nal view of the pr inter and accessori es . . . . . . . . . . . . . . . . . . . . 1 0 Figure 3. Inte rface co nnect ions (HP Lase rJet 904 0/9050 Ser ies print er) .
xii List of figu res Figure 49 . Control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 1 Figure 50 . Laser/scann er assembl y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2 Figure 51 .
xiii Figure 10 8. Drive mot or . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157 Figure 10 9. Drive asse mbly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158 Figure 11 0. Controller b oard (1 of 2 ) .
xiv Lis t of figur es.
Chapter con tents 1 1 Product inf or mation Chapter contents Product features of the HP Lase rJet 9000 Se r ies pr inters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Product features of the HP Lase rJet 9040/90 50 Ser ies pr inters .
2 Chapt er 1 Product i nformati on Pr oduct features of the HP LaserJet 9000 Series printers HP LaserJet 9000 print er (C85 19 A) The HP Laser Jet 9000 p rint er co mes stan dard with 64 MB RAM , wide-for mat pri nting, and two 500-shee t tra ys (tray 2 and tray 3).
Produc t features of the HP Laser Jet 9000 S eries printer s 3 Expand ability All mode ls accept th e f ollo wing a ccesso ries: z Optional tra y 1, a 100- sheet or 10-en v elope m ultipurpose tra y fo r automatic and man ual fee ding o f env elopes , labels , transpare ncies , cu st om- sized m edia f rom 98 x 1 91 mm (3 .
4 Chapt er 1 Product i nformati on Pr oduct features of the HP LaserJet 9040/9050 Series printers HP LaserJet 90 40/ 905 0 printer The HP L aserJe t 9040/9 050 pr inter ( product number Q7 697A/Q37 21A) co mes standar d with 64 MB RAM, wide -format p rint ing, an d two 500-sh eet tra ys (tray 2 and tray 3).
Produ ct featur es of the HP La serJet 9040/9050 S eries printer s 5 Expand ability All mode ls accept th e f ollo wing a ccesso ries: z Optional tra y 1, a 100- sheet or 10-en v elope m ultipurpose tra y fo r automatic and man ual fee ding o f env elopes , labels , transpare ncies , cu st om- sized m edia f rom 98 x 1 91 mm (3 .
6 Chapt er 1 Product i nformati on Pr oduct specifications Identi fication The mode l number an d pri nter se rial number are l isted on an identif ication l abel loc ated in two places: z on the re ar cover z on the cha ssis b ehind the r igh t door The mode l number i s alphanume r ic, such as C4270A.
Product s pecific ation s 7 Optio nal 3,000 - sheet stac ke r Optiona l Option al Optiona l Optional Optiona l Option al Optional Optio nal 3,000 - sheet stapler /stac k er Opti onal Opt ional Opti on.
8 Chapt er 1 Product i nformati on Note Electr ical s pecific ations mi ght chang e. See ww w .hp.com/go/lj9000 or www .hp .com/go/l j9050_lj90 40 f or the curren t infor mati on. W ARNING! P ower requi rements are bas ed on the c ountr y/r egion whe re the pr inter is so ld.
Product s pecific ation s 9 T able 9. Acoustic al specificati ons Declared p er ISO 9296 Sound po wer l ev el 1 HP LaserJet 9050 Sound po wer l ev el 2 HP LaserJet 9040 1. Values curre nt as of O ctober 16 , 2003. Val ues subj ect to ch ange, see www .
10 Chap ter 1 Product infor mation Pr oduct overview External vie w of the printer and accessories Figure 2. External view of the p rinter and acces sories Opti onal tra y 1 Right door Ve r t i c a l .
Produc t overview 11 Interface connections Figure 3. Interface connections (HP Laser Jet 9040/9050 Series pri nter) Figure 4. Interface connections (HP LaserJet 9000 Series printer) Local area networ .
12 Chap ter 1 Product infor mation Optional accessori es Figure 5. Optional access ories 3,000-sheet stapler/stacker Duplex printing accessor y (duplex er) Tr a y 4 3,000-sheet stacker Tr a y 1 HP F a.
Regulato ry informa tion 13 Regulator y information Regulatory requi rements F or reg ulator y inf or matio n and requ irem ents, please see th e HP Laser Jet 9000 Star t Guide or the HP Laser Jet 9040/ 9050 Star t Guide .
14 Chap ter 1 Product infor mation Service approach Repair o f the pr inter n or mally be gins with a three- step pr ocess: z isolate the problem to the major system (the host c omputer , the n etwork.
Chapter cont ents 15 2 Product requirements Chapter contents Site requi rements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Operating environm ent . . . . . . . . . . . .
16 Chapter 2 Product requireme nts Site requirements Operating en vironment The electr ical and environmen tal speci fication s must be mainta ined to en sure the pr oper opera tion of this pr inter. See "Product specif ications" in ch apter 1.
Site r equirem ents 17 Space requirements Figure 6. Space requirements f or the base model 353 mm 633 mm (24.9 in ches) 368 mm (17.8 in ches ) 600 mm ( 23.
18 Chapter 2 Product requireme nts Figure 7. Space r equiremen ts with a f inishi ng device (3,00 0-sheet s tapler/ stacker shown) and tr ay 4 installed 2,59 1 m m ( 10 2 in che s ) 1,001 mm ( 39.
Media s pecific ations 19 Media specifications Use the following informa tion to help the u ser sel ect and us e pr int media . Note Before purchasi ng large quantitie s of pr int m edia, make su re that it meets the requi rements that are specifi ed in this s er vice manual and in the H P L aserJe t Pr inter F amily Pri nt Media Guid e.
20 Chapter 2 Product requireme nts Figure 8. Sample seams Note Pri nt env elopes f rom tray 1 onl y . S end env elop es straig ht through the pr inter , enter ing at tray 1 and ex itin g from the f ace-u p bin. Note F or the b est pr int qual ity , positio n mar gins no c loser than 15 mm (0 .
Media s pecific ations 21 Figure 9. Adhesive labels T ransparency specificat ions T o av o id dam aging the p rin ter , us e only tra nsparen cies tha t are recom mended f o r use i n laser pri nters. z Construction —Prior to pr inti ng, transpa rencie s should lie flat with less than 10 mm ( 0.
22 Chapter 2 Product requireme nts Embossed me dia Emboss ed media i s not re commende d for use in HP Lase rJet pr inters. Med ia is em bossed by stamping an i mage in to the media by c ompressi ng the m edia fibers to gether at appr ox imatel y 200°C (392°F), and so metime s by applying a thin m etal foil to the surface.
Media s pecific ations 23 streak s and smudg ing. Hum id weather o r water cooler s can c ause the h umidity in a room to increa se. As a p ackage of pape r is ope ned and used, it absorbs any e xcess moistur e, causing light pri nt and d ropouts. Also, as paper los es and g ains moistur e, it can dis tor t.
24 Chapter 2 Product requireme nts Note The U .S. postcard m easurem ents are approximate. Use for ref e rence on ly . 0.23 47 119 65 80 97 108 176 176 53 134 74 90 110 122 199 1 99 54 137 7 5 93 1 13.
Media i nput/out put options 25 Media inpu t/output options T rays, bins, and p aper han dling The base- model pr inter comes with two built-in 500-shee t tra ys (tray 2 and t ra y 3). T ra y 1 a nd tray 4 can be ad ded to the pr inter . Special med ia (env elopes, labels) should only be loaded in to tray 1 .
26 Chapter 2 Product requireme nts Suppor ted siz es of paper for input and output Note F or more in f or mation on an optio nal HP o utput device, see the use r guid e that came wi th the produ ct. T ray or Bin Capacity Paper W eight Optional tra y 1 Up to 100 sheet s Up to 10 envelope s Maxim um stac k height f or transpa rencies: 10 mm (0.
Media i nput/out put options 27 Left out put bin Up to 100 sheets Up to 10 transpa rencies Stand ard si z e s: Letter , Legal, Ex ecutiv e, ISO A3, ISO A4, ISO A5, 11 x 17, JIS B5, JIS B4, JP ostD , M.
28 Chapter 2 Product requireme nts Optio nal multifu nctio n finisher Up to 1,0 00 sheets of stac k ed 20 lb bond f or Letter and A4 (up t o 50 sheets stap led ), an d 500 sh eets of stac k ed 20-lb b.
Chapter cont ents 29 3 Product configur ation Chapter contents Using the control pan el . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Control-pa nel buttons . . . . . . . . . . . .
30 Chap ter 3 Product confi guration Using the con tr ol panel The co ntrol panel inc ludes thre e LED ind ica tor li ghts, four navigation buttons, a he l p b ut to n, a messag e-clear b utton, a pau.
Using th e cont rol pane l 31 Contr ol-panel buttons Note The HP Laser Jet 9000 a nd the HP La serJet 904 0/9050 S eri es pri nters ar e simi lar produc ts.
32 Chap ter 3 Product confi guration Numeric ke ypad commands The numer ic keypad is used to spe cify numer ic values. The nume ric keypad p rovides a s hor tc ut ke y to items i n the me nus if the d e vice is in an i dle state. Pr essing th e numbers th at corr espond wit h the positio n of the m enu item open s that m enu.
Settings a nd defau lts 33 Settings and defaults The pr inter ba ses m ost pr inting d ecisions on temporar y setting s or on factor y (per manent) defaults. Note Settin gs that you se nd from software pr ograms ov err ide default se ttings. T emporary settings are the values that are set thr ough a s oftware program for the cur rent pr int job.
34 Chap ter 3 Product confi guration Figure 12. Registration page (1 of 2).
Settings a nd defau lts 35 Figure 13. Registration page (2 of 2).
36 Chap ter 3 Product confi guration Prin ter dr iver information When you chan ge a setti ng from th e pr inter con trol panel, the new settin g becomes the de f ault v alue. Y ou can override any control -panel settin g from the pri nter dri ver and through m ost softwa re programs.
Control-pa nel me nus 37 Cont r ol-pan el men us Press or to cycl e through the co ntrol-panel menus. Each m enu is desc ri bed in a separate table in this section. Menu item s appe ar only if their associ ated op tion is i nstalle d, or thei r functi ons are activated.
38 Chap ter 3 Product confi guration Retrieve job menu Note If no pr ivate, stored, quick copy , or pro of and hol d job s are stor ed on the pri nter har d disk or in RAM, the mess age NO STORED JOB appears when the menu is se lecte d. 1 A list o f user n ames a ppear s.
Paper- handling menu 39 P aper-handling me nu When pape r-handl ing s ettings a re cor rectly co nfigured through t he con trol pane l, you can pr in t by selecti ng the type and s ize of pap er from the prin ter dr iver or software p rogram.
40 Chap ter 3 Product confi guration FUSER MODES (HP LaserJet 9000 only ) List of print-m edia types Con figure the fuser mod e that is a ssociated with eac h media ty pe. Th e def ault va lue f or each pap er type is AUTO . The fuse r mode can only be ch anged from this me nu option o n the c ontrol pan el.
Con figur e device m enu 41 Configure d e vice menu This menu c ontains a ll of the a dministra tive functions. Printing submenu Some item s in this menu ar e av ailable from a s oftware program, or from the p rint er dr iver (if the appropr iate d river is i nstalle d).
42 Chap ter 3 Product confi guration PCL submenu Items in the PCL subme nu affect PCL tasks. DUPLEX=OF F OFF ON This item appears o nly when an opti onal d uple x printing ac ce ssor y is in sta lled. Set t he valu e to ON to print on both si de s (dup lex) or OFF to print on one si de (simp le x) of a sh ee t of paper.
Con figur e device m enu 43 Item V alues Exp lanation FORM LENG TH=60 5 to 128 Sets v er tical spac ing from 5 to 128 lines f or the def ault paper siz e. Specify the v alue b y u si ng th e n um eric k eypad . ORIENTATI ON= PORTRAIT PORTRAI T LANDSCA PE Allow s the us er to sele ct the def ault page orientatio n.
44 Chap ter 3 Product confi guration Print-quali ty submen u Some item s in this menu c an be set w ith a softwa re program, or fr om the dr iver (if the a ppropr iate dri v er is ins talled) . Dri v er and software sett ings override con trol-pa nel setti ngs.
Con figur e device m enu 45 RET=MEDIU M OFF LIGHT MEDIUM DARK Use the p rinter Resol ution Enha ncement technolo gy (REt) se tting to prod uce print t hat contai ns smoo th angles , cur ves, and ed ges. All print resol utions , includ ing F astRes 1200, be nefit from REt.
46 Chap ter 3 Product confi guration System set up submen u Items in this menu affect the p rint er functi on. Configu re the printer accordi ng to your pr intin g needs. Item V a lues Explan ation DATE/TIME (HP LaserJet 9040/9050 only ) DATE DATE FO RMAT TIME TIME FO RMAT Sets the date an d time f or th e printer .
Con figur e device m enu 47 PERSONALI TY=AUT O AUTO PCL PS PDF XHTML MIME Select th e def ault printer lan guage (pe rsonal ity). P ossib le v alues ar e dete r mined b y whi ch v alid languages are installe d in the p rinter . Normally , you should n ot change the printer langu age (the defaul t is AUTO ).
48 Chap ter 3 Product confi guration I/O subm e nu Items in the I/O ( input/o utput) menu a ff ect the communi cation between the pr inte r and the comput er . I/O timeout submenu P arallel input submenu RAM DISK= AUTO (HP LaserJet 9000 only ) AUTO OFF This ite m det er mines how t he RAM disk is c onfig ured.
Con figur e device m enu 49 EIO X Je tdirect s ubmenu The EIO ( enhanced input/ output) submenu ap pears on ly whe n an EI O device is ins talled in an EIO slot on th e pr inter (s uch as an HP Jetdirec t pri nt se r v er). Th e items i n the menu dep end on t he par t icular ac cessor y produc t that is install ed.
50 Chap ter 3 Product confi guration Embedde d Je tdirec t submenu (HP Laser Je t 9040n/ 9050n a nd 9040dn/ 90 50dn only) Item Optio ns V alues Exp lanatio n TCP/IP ENAB LE HOST NA ME CONFIG METHOD DH.
Con figur e device m enu 51 TCP/IP DEFA ULT IP PRIMARY DNS SECONDA RY DNS PROXY SERVER PROXY P ORT AUTO IP LEGACY . A link-l ocal IP ad dress of 1 69.254 .x.x is s et. The add ress 192.0.0.192 is set, c onsiste nt with older J etdirect p roducts . Specify the IP add ress (n.
52 Chap ter 3 Product confi guration DIAGNOSTI CS LOOPBACK TEST PING TE ST PING RESULTS YES NO DEST IP PACKET SIZE TIMEOUT COUNT PRINT RESULTS EXECUTE PACKETS SENT PACKETS RECEIVE D PERCENT LOST RTT MIN RTT MAX RTT AVE PING IN PROGRES S REFRESH CA UTION This te st will erase y our TCP/IP conf igura tion.
Con figur e device m enu 53 Res ets su bm enu Note Use this menu with ca ution. Y ou can lose b uff e red page d ata or pr inter c onfig uration sett ings when you select th ese items. Re set the product only und er the f o llowing c ircumstan ces: z Y ou want to restore th e pri nter default sett ings.
54 Chap ter 3 Product confi guration Diagnostics men u Adminis trators can use th is menu to tr oubleshoot j am and pr in t-qualit y issues. Service menu The Service menu i s lock ed. A se r vic e technic ian must ty pe a PIN to open th e menu. See "Ser vice menu" on pag e 215 fo r m o r e in for m at i o n .
Remo te firmware upgrade (R FU) 55 Remote firmwa re upgrade (RF U) The pr ocess for upgrading pr inte r fir mware remotely inv olves three step s: 1 Deter min e the curr ent lev e l of fir mware i nstalled on the prin ter . 2 Go to the www .hp.com/go/l j9000_fir m ware , www .
56 Chap ter 3 Product confi guration 6 Press OK . 7 Press EXIT . The following command can be set on the compu ter to add ress a timeou t messag e that ap pears on the compu ter scree n dur ing an upgrade.
Remo te firmware upgrade (R FU) 57 8 V er ify that the informa tion th at appear s in All Av a ilable Images . 9 Click Return to Device Firmw are Updat e .
58 Chap ter 3 Product confi guration 6 When pr ompted for the type of update to perform, click Update Printers , an d then cl ick Continue . 7 F rom the list o f HP Devices, selec t the pr inter s to be upgrade d, or click Selec t All . 8 Click Update to in stall the new pr inter f irmware.
Chapter cont ents 59 4 Product maintenance Chapter contents Prev enta tive maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 Prev enti v e mainte nance kit c ontents . . . . . .
60 Chap ter 4 Product mainte nance Preventative maintenance T o ensu re optimum pr int qual ity , the pr inte r promp ts cu stomers to perfor m pr inter maint enance ev er y 350,000 pa ges. When the PERFORM PRINTER MAINTENANCE messag e appea rs on the c ontrol pa nel, the cu stomer n eeds t o purcha se and insta ll a prev entive main tenance k it.
Cleanin g the pri nter and a ccessories 61 Cleaning the printer and accessories T o maintain super ior pr int qual ity and per f o rm ance, use th e f o llowing proc edures to clean the pr inter and the paper-hand ling access orie s thoroughl y ev er y time you change the pr int car tridg e or when e v er print- qua l ity pr oblem s occu r .
62 Chap ter 4 Product mainte nance Internal c leaning Duri ng the pr inting proces s, paper , toner , and dust p ar ti cles can a ccumulate inside th e pri nter and the pap er-hand ling acces sor ies. Over time, this buildup c an ca use pr int-qu ality pr oblems such as toner sp ecks or sm earing.
Cleanin g the pri nter and a ccessories 63 3 Using a dr y , lint- free cloth, w ipe any residue from the pa per-path area, the regist ration roll er , and the pr int car tridge cavity . Figure 16. Wipe any re sidue 4 Replace t he pr int ca r tr idge. Figure 17.
64 Chap ter 4 Product mainte nance 6 Close the front cover . Plug in all o f the power cord s, and then tur n o n the pr inte r . Figure 19. Close the fr ont cover.
Cleanin g the pri nter and a ccessories 65 Fuser c leaning T o comple te inter n al clean ing, c reate and proces s a clea ning p age. Create a cl eaning page Generatin g a clean ing pa ge cleans the excess ton er off the pressu re roll er in the fuser .
66 Chap ter 4 Product mainte nance Pr ocess a c leaning page F ollow the inst ructio ns on the cleaning page t o comple te the cl eaning p rocess. PROCESS CLEANING PAGE is only vi sible to the c ustomer after a clea ning page is ge nerated by using the CREATE CLEANING PAGE menu.
Prin t cartridg e infor matio n 67 Print car tridg e info rmation Pri nt car t r idges c ontain co mponent s that are sensit ive to light , temperatur e, and humi dity . M ake sure that the custome r follo ws the recom mendati ons in t his sectio n to ens ure the h ighest qu ality an d longest l ife of the pri nt car tridg e.
68 Chap ter 4 Product mainte nance Refill ed p rint car tri dg es HP policy about non-HP print car tridg es Hewlett-P ackard Company can not reco mmend using new , refi lled, or remanufactured, non- HP pri nt car tridges. B ecause th e y are not HP products, HP ca nnot i nfluence their desig n or con trol thei r quality .
Chapter cont ents 69 5 Theor y of operation Chapter contents Basic ope ration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 Sequenc e of operatio n . . . . . . . . . . .
70 Chapter 5 Theory of operation Basic operation This cha pter provid es inform ation abou t the following systems : z Engi ne contr ol z F or matter z Laser/sc anner z Image form ation z Pic kup an d feed Relations hips am ong the five syste ms are rep resented in figur e 2 1.
Basic operatio n 71 Sequence of operation The engi ne contr ol sys tem co ntrols opera tional se quenc es. T able 14 descr ibes th e sequ ences. Figure 22.
72 Chapter 5 Theory of operation INTR (in iti al rot ati on) F rom the input o f a print- reservation comman d from the formatter un til the laser/scanne r enters a ready s tate z scanner-m otor rotat.
Basic operatio n 73 P ower -on sequence The sequen ce fr om the time the power is tur n ed on un til the pr inte r enters th e stand b y state is as fo l l ow s : 1 The power is tur ne d on. 2 The CPU a nd the AS IC are ini tiali zed. 3 Video in terface communicati on begins (f or matte r).
74 Chapter 5 Theory of operation Timing char t Figure 23. Timing chart bloc k diagram.
Engin e contro l syste m 75 Engine control system The engi ne contr ol sys tem co ordinate s the las er/sca nner , i mage forma tion, a nd pickup and f eed system s accor ding to th e instr uctio ns it receives from t he form atter .
76 Chapter 5 Theory of operation DC contr oller PCA The DC c ontrolle r circuit c ontrols operationa l sequenc es of the pri nter . Figure 25. DC controller PCA bloc k diagram.
Engin e contro l syste m 77 DC contr oller operations z The CPU (IC2 01) o n the DC con troller P CA con trols the following pr inter operations: • Sequenc e of the prin ter • Communicati ons with.
78 Chapter 5 Theory of operation High-v oltage power supply cir cuit The hig h-voltage power supply c ircuit app lies a high-voltage bi as to the p r imar y ch arging r oller , the dev elo ping cyl in.
Engin e contro l syste m 79 Each of the bias generatio n circ uits h as a spe cific pu r pose : z Primary charging bias generation. Appli es bias to the pr imar y chargi ng rolle r to spread a uniform, n egative charge on the pho tosensi tive drum. z Developing bia s generation.
80 Chapter 5 Theory of operation Low-v oltage power sup ply unit The low-voltage power sup ply u nit cons ists of th e fuse r cont rol ci rcuit and th e low-voltage power- supply circui t. Figure 27. P ower -supply-b loc k diagram Fuser control cir cuit Three heat ers h eat the fus er roller and pre ssure rol ler .
Formatter s ystem 81 Formatter system The formatte r and DC controlle r e xchan ge signal s that al low the DC co ntroller t o begin the initi al rotation peri od (INTR), tur n on th e registrati on roller drive clutc h, and feed media i nto the pr inter.
82 Chapter 5 Theory of operation Note A flash memor y c ard that i s desig ned for use with a digital c amera sho uld no t be inser t ed into the pri nter .
Laser /scanner system 83 Laser/scanner s ystem The lase r/scann er unit of the HP Las erJet 900 0 ser ies pr inter and the HP L aserJe t 9040/9050 se r ies pri nter contains two laser dio des in its las er unit. The p rint er employs the “twin-bea m method , ” wh ich scans two lines simultaneo usly .
84 Chapter 5 Theory of operation Image formation system The image f ormation system cons ists of th e cartridge , tran sf er charg ing r oller , and fuser .
Image for matio n system 85 5 T ransfer —Dur ing th e transf er process, the toner image on the dr um surface is transferred to the paper . The transf er charging r oller appli es a posi tive charge to the back of the paper and c auses the negati vely charged ton er on the dr um surface to be attracted to the paper.
86 Chapter 5 Theory of operation Cartridge memory The pr int c ar tr idge co mes with built-i n RAM. The pr inte r detects the car tridge conditi on by reading and wr iting to this memor y .
Pickup and fee d system 87 Pic kup and feed system The pickup and f eed sy stem is di vided in to two blocks: pickup/f eed an d fuser/d elivery . T his pr inter conta ins two standard pi ckup sources (tray 2 and tray 3) and two delivery source s (f ace-u p and face- down bins.
88 Chapter 5 Theory of operation Jam detecti on The pr inter detects jams accord ing to t he following condi tions: z Pick up 1 delay jam. Media do es not reac h the tray 2 f eed sensor A (PS140 2) or the tra y 3 feed sensor A (PS1404 ) within 3.2 se con ds after pickup begins.
Pickup and fee d system 89 Figure 31. Pickup-and-feed s ystem sen sors and switches.
90 Chapter 5 Theory of operation T able 16. P ickup-and-feed sys tem sensors and switches Sensor/switc h D escription PS1 Ov erhead transpa rency se nsor PS2 Registr ation pa per senso r PS501 Fuser d.
Pickup and fee d system 91 Figure 32. Pickup-and-feed system motors and sole noids.
92 Chapter 5 Theory of operation T able 17. Pic kup-and-feed system motor s and solenoids Motor /solenoi d Descrip tion DCM1 Fuse r/del iver y motor DCM2 Main /dr um mot or SMT1 Pick up roller u p and.
Tray 1 93 Tr a y 1 T ra y 1 is a mul tipur p ose tray that picks up and feeds media i nto the prin ter . T ra y 1 dri ver PCA A dr iver PCA in t he tra y holds a four-bit mic rocomp uter (CP U-IC25 01) that cont rols its opera tional sequenc e and ser ial com munication s with the DC controll er PCA.
94 Chapter 5 Theory of operation Pic kup an d f eed The tray 1 pickup unit picks up media by low ering the pickup rolle r onto the surface of the media that is load ed in the tray , and then sepa rating the r oller fro m the me dia surface the pickup cam lifts t he pickup roller u p and down.
Tray 4 95 Tr a y 4 T ra y 4 is a 2 ,000-sh eet feeder that picks up and feeds media into the pr inte r . T ra y 4 dri ver PCA A dr iver PCA in t ra y 4 holds a 16-bit microc omputer (IC1) tha t controls the tra y 4 operatio nal seque nce and se rial communicatio ns with the formatter.
96 Chapter 5 Theory of operation Pic kup an d f eed The formatte r sends a signal to the dr iver PCA t o star t driv ing the p ickup and feed motors. Rotated by the rollers, the pickup roll er picks up a s heet, the separatio n roller removes any e xcessive she ets, and the feed roll er transpor ts the sh eet to the r egistration r oller uni t.
Chapter cont ents 97 6 Remo v al and replacement Chapter contents Introductio n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 Remov al and r eplacement strategy .
98 Chapter 6 Remova l and rep lacemen t DC controll er . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 8 T oner-sensor contac t assembly . . . . . . . . . . . . . . . . . . . .
Introduc tion 99 Introduction Remo v al and repl acement strat egy This cha pter docu ments removal and replaceme nt of fi eld repl aceable units ( FR Us ) only . Replace p ar ts i n the rev erse o rder of thei r removal. Directions for difficult o r cri tical r eplaceme nt procedu res ar e inc luded.
100 Chapter 6 Rem oval and replaceme nt Orientation of the printer (wi th tray 4) The pr inter is shown with tray 4 and tray 1. Front and right side orientat ion Figure 35.
Covers 101 Co vers The following cov ers can b e removed from the prin ter : Right top cov er 1 Remov e the control panel. Se e page 111. 2 Remov e tray 1 if it is in stalled. See pa ge 125. 3 Open the righ t door . 4 Release t he door s top (callo ut 1).
102 Chapter 6 Rem oval and replaceme nt 5 Remov e three silver screws (callo ut 2). 6 Gently li ft the r ight edge to re lease the tabs, and then l ift the right to p cov er to th e ri ght. Figure 38. Right top cov er (2 of 2) T o reinstall If the left top cover was remov ed ( page 103) , you must replace it before replacing the ri ght top cover .
Covers 103 Left top co ver 1 Remov e the control panel. Se e page 111. 2 Remov e the r ight to p cov er . S ee page 10 1. 3 Remov e two silver screws (callo ut 1). 4 Lift the left to p cov er up, and then pu ll it toward the rig ht side of the printe r to relea se two loca ting tabs (on the under side of th e cover , at the left edge).
104 Chapter 6 Rem oval and replaceme nt Fr ont co ver 1 Remov e two small, p lastic re tainin g pins (ca llout 1) . 2 Pinch a nd relea se two tabs (bel ow the reta ining cu ps, callout 2) on the end of e ach black retaining s trap to re lease the strap ends.
Covers 105 Right door 1 Remov e tray 1 if it is in stalled. See pa ge 125. 2 Open the righ t door . 3 Pinch a nd then push the two ta bs (callo ut 1) on th e end o f the black strap to releas e the strap ends. If you hav e diffic ulty , use nee dle-nose p liers.
106 Chapter 6 Rem oval and replaceme nt Right lo wer co ver 1 Remov e the f o llowing FRUs: • Right d oor . S ee page 10 5. • Back cover . See p age 109. • Right a nd left rail c ov e rs. See page 110. 2 Remov e three screws (callout 1). 3 Rotate the l ower edge up to r elease t wo tabs (call out 2).
Covers 107 Left door and di verter Note If the 3, 000-she et stacker , 3 ,000- sheet sta pler/ stacker , or multifu nction finis her is in stall ed, move it aw a y from the pr inter to gain acc ess to th e left door a nd diver ter . 1 Open the left doo r .
108 Chapter 6 Rem oval and replaceme nt Left back cov er 1 Remov e the form atter . See pa ge 135. 2 Remov e three silver screws (not show n) from the l eft back cov er .
Covers 109 Bac k cover 1 Remov e the power cord. 2 Remov e two si lver screws (callout 1 ) on the r ight back cov e r . 3 Remov e sev en gold screws (callout 2 ) on th e back cov er . 4 While facing th e back of the pr inter , rotate the left edge out an d then rem ov e the back cover .
11 0 Chapt er 6 Removal and repl acement Right and left rail co vers 1 Remov e trays 2 and 3. See page 12 1. 2 Remov e two silver screws (callo ut 1) fro m the r ight rail cov er . 3 Lift the up per tab ( callout 2) to relea se it, and push the lower tab (callou t 3) toward the r ight to releas e it.
Top assem blies 111 T op assemblies Gain ac cess to the f ollowing as semblies from the top of the pr int er : Con trol panel 1 Open the front cover . 2 Release t he two tabs (cal lout 1) o n the und erside of the contro l panel by pulling th em toward the front of th e pri nter .
11 2 Chapt er 6 Removal and repl acement Laser/scanner ass emb ly 1 Remov e the f o llowing FRUs: • Control p anel. See page 11 1. • Right t op cover . See page 1 01. 2 Unplug thr ee cable con nectors ( callout 1) . 3 Remov e four long, gol d screws (callo ut 2).
Top a ssem b lies 11 3 Delivery assemb ly 1 Remov e the f o llowing FRUs: • Right t op cover . See page 1 01. • Left top cover . S ee page 10 3. • Left back cover . See pa ge 108. • Control p anel. See page 11 1. 2 Open the left doo r . 3 F ace the top of t he pr inter fr om the left side.
11 4 Chapt er 6 Removal and repl acement Delivery-fan ass embl y 1 Remov e the delivery assembly . See page 113. 2 Gently re mov e the two sens or flags (callout 1) from the holder s. 3 Unplug thr ee cable con nectors ( callout 2) . CAUTION Make sure that you remove and repla ce the cable connectors careful ly .
Top a ssem b lies 11 5 Delivery-assembl y fans and face-do wn-bin fan (fans 3, 6, and 4) 1 Remov e the f a n assembly . See p age 114 . 2 Carefull y unwind the fan cables from the ca ble guides (callout 1 ). Figure 53. Delivery -assembly fans and face-down-bin fan ( 1 of 2) 3 Remov e six gold s crews (callout 2 ).
11 6 Chapt er 6 Removal and repl acement Delive ry mot or 1 Remov e the f o llowing FRUs: • Right t op cover . See page 1 01. • Left top cover . S ee page 10 3. • Control p anel. See page 11 1. • Deliver y assembly . See page 113. W ARNING! The P CA boar d is fragile.
Top a ssem b lies 11 7 Car tridge rele ase le ver 1 Remov e the f o llowing FRUs: • Right t op cover . See page 1 01. • Left top cover . S ee page 10 3. • Control p anel. See page 11 1. 2 Open the front cover . 3 Rotate the c ar tr idge r elease lev er downward.
11 8 Chapt er 6 Removal and repl acement 7 Rotate the c ar tr idg e release l ev er to the ver tical , unlocked position. Figure 58. Cart ridge release lever (3 of 3 ) 8 F ace the front of the p rinte r , and slide th e car tridge releas e handle away from th e front of the pri nter .
Front assembl ies 11 9 Fr ont assemblies Gain ac cess to the f ollowing as semblies from the front of the p rinte r : Print cartridge W ARNING! T o prev ent damage, do not expose the pr int car tr idg e to light . Put it in its pr int car tridge bag, or , if the bag is no t av a ilable, cov er the pr int car tridge with a pie ce of p aper .
120 Chapter 6 Rem oval and replaceme nt T ransfe r- rolle r asse mbly CAUTION Do not touch the black transfer roller . Skin oils can d amage the rolle r . 1 Open the front cover . 2 Unlock the pr int car tridge by rotating th e large, green le v er (callout 1 ) downward.
Fron t asse mblie s 121 T ra y 2 and tr ay 3 (int er changeable) 1 Slide th e tray open until i t stops. 2 Gr asp t he s ides of th e tr a y . 3 Lift the tray up and re mov e it.
122 Chapter 6 Rem oval and replaceme nt Roller s (pic kup, feed, or separation) CAUTION Do not rem ov e the torqu e limite r from b ehind the separation roller. If the blac k spac er comes o ff, return it to the s haft, me tal-edge first. 1 Remov e tray 2 or tra y 3.
Fron t asse mblie s 123 Fuser -jam-remo val knob CAUTION Make sure not to drop any of th e inter n al par ts from the fuser-ja m-removal knob , and pay careful attention t o the or iginal loca tion of the par ts. 1 Open the front cover . 2 Release t he tab (c allout 1) with a sm all flatblade screwdriver .
124 Chapter 6 Rem oval and replaceme nt Registration-jam-rem ov a l knob 1 Open the front cover . 2 Hold the r egistration- jam-removal knob fir ml y , and remove the silver screw insid e the knob (callout 1 ). 3 Pull the knob off o f the pr inter. Figure 64.
Righ t asse mblie s 125 Right assemblies Gain ac cess to the f ollowing as semblies from the r ight sid e of the pri nter : z Multipur p ose tray (tra y 1 ) z P aper- inpu t uni t (PI U) z Regi stra tion asse mb ly z T ransfer-guide ass embly Tr a y 1 1 Unlock two locking pins ( one shown, c allout 1) at the bottom of tray 1.
126 Chapter 6 Rem oval and replaceme nt P a per-input unit ( PIU ) 1 Remov e the f o llowing FRUs: • Right d oor . S ee page 10 5. • Back cover . See p age 109. • Right rail cover . See page 110. • T ra y 2 and tray 3. See page 121. 2 Remov e four gold screws (ca llout 1), two fr om each ra il.
Righ t asse mblie s 127 6 Remov e three screws (callout 3) fr om the r ight l ow e r cov er . 7 Rotate the l ower edge up to r elease t wo tabs (call out 4). 8 Remov e the r ight l owe r co v er . Figure 68. P aper -input unit (3 of 5) 9 F ace the back of the pr inter.
128 Chapter 6 Rem oval and replaceme nt 11 F ace the rig ht side of the pr inter . 12 Push the green registra tion hand le ( callout 7) down sligh tly , and then pu ll it o ut to g ain a ccess to the PIU. 13 Remo ve f our silv er scre ws (callou t 8).
Righ t asse mblie s 129 Registration assem bl y 1 Remov e the f o llowing FRUs: • Right d oor . S ee page 10 5. • Back cover . See p age 109. • Print c ar t ridg e. See page 119 . • T ra y 2 and tray 3. See page 121. • Registrati on-jam-removal knob.
130 Chapter 6 Rem oval and replaceme nt 3 Remov e two gold s crews (callo ut 2) from t he reg istration as sembly . 4 Lift the r egistration as sembly up slightly , and then rotate it downward until you can pull it from the chas sis.
Righ t asse mblie s 131 T ransfe r- guide assembl y 1 Remov e the f o llowing FRUs: • Right d oor . S ee page 10 5. • Back cover . See p age 109. • T ransfer-roller assembly . See page 120. • T ra y 2 and tray 3. See page 121. • PIU . See pa ge 126.
132 Chapter 6 Rem oval and replaceme nt T o reinstall 1 F ace the r ight side of the pr inter, and reinser t the pin (c allout 1 ) in the b ack, left cor ne r . 2 Rotate the tra nsf er guide assem bly upward, and sl ide the th ree back tabs ( callout 2) into p lace.
Left ass emblies 133 Left assemblies Note If the 3, 000-she et stack er , 3 ,000- sheet sta pler/ stacker , multifuncti on fin isher , or 8-bin mailb o x is install ed, move it aw ay from the pr inter be f ore be ginning r epairs to the left side of the pr inter .
134 Chapter 6 Rem oval and replaceme nt Fuser assemb ly W ARNING! The f user asse mbly can be ho t. Use caution wh en rem oving it. Note If an optio nal out put acces sor y i s installe d, remove it. If a dup le xer is installe d, remove it. See p age 133 .
Back a sse mblies 135 Back assemb lies Gain ac cess to the f ollowing as semblies from the back of the pri nter : Formatter W ARNING! The form atter h as shar p edges. 1 T ur n the p rinte r off. 2 Disconn ect all cables from the for matter . 3 Loosen th e two thumb screws (callou t 1).
136 Chapter 6 Rem oval and replaceme nt Low-v o ltage power sup ply 1 Remov e the back cov e r . See page 1 09. 2 Remov e the large cable con nector (c allout 1) from the DC contro ller . 3 Unroute th e cable from t he cable guide s (callou t 2). Figure 80.
Back a sse mblies 137 High-v oltage power suppl y 1 Remov e the back cov e r . See page 1 09. W ARNING! The f lat r ibbon cable is fragile. Do not bend or fold it.
138 Chapter 6 Rem oval and replaceme nt DC contr oller CAUTION The DC c ontrolle r is se nsitive to ele ctrostatic discha rge (E SD). Always perf or m ser vice wor k at an ESD-prote cted wor kstation , or use an ESD ma t. For fur ther precaut ions, see page 9 9.
Back a sse mblies 139 3 Remov e four gold screws (callout 2). 4 Release t he small tab (callo ut 3), and rotate the top edg e of the DC controll er awa y fr om the pri nter . 5 Remov e the DC controll er from t he two metal holder s (callou t 4). Figure 85.
140 Chapter 6 Rem oval and replaceme nt T oner -sensor contact assemb ly 1 Remov e the f o llowing FRUs: • Back cover . See p age 109. • High-voltage p ower supply . S ee page 137 . • DC contro ller . See page 138. 2 Remov e two scr ews (callout 1) .
Back a sse mblies 141 Drum moto r 1 Remov e the back cov e r . See page 1 09. 2 Remov e the HVP S. See page 137 . 3 Unplug one cable connec tor (cal lout 1). 4 Remov e four gold screws (callout 2). 5 Pull the drum motor awa y from the pri nter . Figure 88.
142 Chapter 6 Rem oval and replaceme nt Feed-drive ass embl y 1 Remov e the f o llowing FRUs: • Back cover . See p age 109. • High-voltage p ower supply . S ee page 137 . • DC contro ller . See page 138. 2 Disconn ect the dr um mo tor . 3 Open the front cover .
Back a sse mblies 143 P ower -supply fan ( fan 1) 1 Remov e the back cov e r . See page 1 09. 2 Unplug the f an cable co nnector (callout 1 ), and carefully unwind the fan cables from the cable guides ( callou t 2). 3 Slide th e power supply fan (callout 3) ou t of the pr inter.
144 Chapter 6 Rem oval and replaceme nt Car tridge fan (fan 5) 1 Remov e the back cov e r . See page 1 09. 2 Remov e the J-216 c able connecto r (callo ut 1) fro m the DC con troller. Figure 91. Car tri dg e fa n (1 of 2) 3 Remov e tray 1 if it is in stalled.
Back a sse mblies 145 Contr oller fan (fan 2) 1 Remov e the back cov e r . See page 1 09. 2 Locate the control ler fan below the formatter. 3 Unplug the f an cable co nnector (callout 1 ), and carefully unwind the fan cables from the cable guides ( callou t 2).
146 Chapter 6 Rem oval and replaceme nt Jetlink c onnector 1 Remov e the back cov e r . See page 1 09. 2 Disconn ect two cables (ca llout 1) tha t are con nected to the Jet link co nnecto r (behind t he white ground con nector). 3 Remov e two scr ews (callout 2) .
Back a sse mblies 147 Fuser -connector holder assembl y 1 Remov e the f o llowing FRUs: • F or matter . See page 135. • Back cover . See p age 109. • Left top cover . S ee page 10 3. • Right t op cover . See page 1 05. • Low-voltage pow er suppl y .
148 Chapter 6 Rem oval and replaceme nt 4 Remov e one screw (callo ut 5) and one cable con nector (c allout 6) , and then p ull the fu ser- connecto r holder assem bly tow ard you.
Back a sse mblies 149 Fuser delivery-drive a ssembl y 1 Remov e the f o llowing FRUs: • Left top cover . S ee page 10 3. • Right t op cover . See page 1 05. 2 Open the left doo r . 3 Remov e the delivery assembly . See page 113. 4 Disconn ect one c able (callout 1) a nd one connecto r (callou t 2).
150 Chapter 6 Rem oval and replaceme nt 6 F rom the left side of th e prin ter , lift the back of the fuser deliver y dr ive assembly to diseng age the top tabs ( callou t 4).
Tray 4 151 Tr a y 4 The following cov ers an d assemblies c an be rem ov e d from tray 4: Orienta tion See "Ori entati on of the pr inte r (with t ra y 4)" on page 10 0. Left side co ver 1 Remov e two screws (call out 1) from the le ft side cover .
152 Chapter 6 Rem oval and replaceme nt Ri gh t si de co ver 1 Remov e two screws (callou t 1) from the r ight side c ov e r . 2 Pull the top edg e of the cover outward. 3 Lift the r ight si de cover up and out to r emov e it f rom tra y 4. Figure 102.
Tray 4 153 Bac k cover s Center bac k cover 1 Remov e four screws (callou t 1) from the cente r back cov e r . 2 Remov e the center b ack cov er . Right bac k cover 1 Remov e the center b ack cov er . 2 Slide th e ri ght back cover (callout 2) toward the center to rele ase an in teri or tab .
154 Chapter 6 Rem oval and replaceme nt Tr a y 4 CAUTION T ra y 4 is he avy and can be damag ed if drop ped. Use b oth hands when r emoving tra y 4. 1 Open tray 4 (the tray assembly), and rem ov e all o f the paper. 2 Pull the tra y assem bly out until it s tops.
Tray 4 155 Roller s (pic kup, feed, and separation) 1 Remov e tray 4. See page 154 . 2 Locate the appropr iate roller on the uppe r r ight sid e of the tray ca vity . The pi ckup roller (callout 1), f eed ro ller (cal lout 2 ), and se paratio n roller ( callout 3) are all type 2 r ollers.
156 Chapter 6 Rem oval and replaceme nt Registration assem bl y 1 Remov e the r ight s ide cov er . S ee pag e 152. 2 Remov e four screws (callou t 1). CAUTION Use care wh en following step 3 . Three ca bles are con nected to the regist ration asse mbly .
Tray 4 157 Drive motor 1 Remov e the center b ack cov er. See page 153 . 2 Unplug the cable connec tor (call out 1) fr om the co ntroller b oard. 3 Carefull y unwind the cable from the ca b le guides ( callout 2 ). 4 Remov e two scr ews (callout 3) . 5 Remov e the dr ive motor from tra y 4.
158 Chapter 6 Rem oval and replaceme nt Drive ass embl y 1 Remov e the center b ack cov er. See page 153 . 2 Unplug the cable connec tor (call out 1) fr om the co ntroller b oard. 3 Carefull y unwind the cable from the ca b le guides ( callout 2 ). 4 Remov e two scr ews (callout 3) .
Tray 4 159 Contr oller board 1 Remov e the f o llowing FRUs: • Center ba ck cov er . Se e page 153. • Left back cover . See pa ge 153. 2 Unplug el e ven connecto rs (callou t 1). Figure 1 10 . Controller boar d (1 of 2) 3 Remov e two scr ews (callout 2) .
160 Chapter 6 Rem oval and replaceme nt P aper-size detection switc h PCA 1 Remov e the center b ack cov er. See page 153 . 2 Remov e one screw (callo ut 1) to rem ov e the lea f spr ing (call out 2). Figure 1 12 . Paper - size switch PCA (1 of 2 ) 3 Release four tabs ( callout 3), and rem ov e the PCA from the casing.
Tray 4 161 P ower supply 1 Remov e the f o llowing FRUs: • Center ba ck cov er . Se e page 153. • Left back cover . See pa ge 153. 2 Unplug one connect or (cal lout 1). 3 Remov e two scr ews (callout 2) . 4 Slide th e power supply to t he left to remove it.
162 Chapter 6 Rem oval and replaceme nt Pic kup assembl y 1 Remov e the f o llowing FRUs: • Right sid e cover . See pa ge 152. • Center ba ck cov er . Se e page 153. • Right b ack cov er. See page 15 3. • T ra y assem bly . See pag e 154. • Registrati on assem b ly .
Tray 4 163 P aper-connecting unit 1 Release the two lev ers (callo ut 1) by pu lling th em toward the center of the p aper c onnecting unit . 2 Lift the pa per conn ecting un it straigh t up and remove it.
164 Chapter 6 Rem oval and replaceme nt.
Chap ter contents 16 5 7 T roub leshooting Chapter contents T roubleshooting pr ocess . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167 Basic troubleshooti ng proc ess flow . . . . . . . .
166 Chapter 7 Troubl esho oting Repeating defect ruler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243 Media troublesh ooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubles hooting pr ocess 16 7 T r ou bleshooting pr ocess The trou b les hooting pr ocess i s a syst ematic ap proach th at addres ses the pr im ar y problems fir st, and then other problems, to dis cov er the cau ses for printe r malfun ction s and erro rs.
168 Chapter 7 Troubl esho oting Basic tr ou bleshooting pr ocess flow Figure 1 18 . Basic trou b l eshooting pr ocess flow (1 of 2).
Troubles hooting pr ocess 16 9 Figure 1 19 . Basic troub leshooting pr ocess flow (2 of 2 ).
170 Chapter 7 Troubl esho oting Preliminary oper ating c hec ks Make sure that th e following conditio ns are m et before troubleshoot ing a spe cific p rinte r problem: z The pr inter is plug ged in , and the specifi ed power is bei ng delivered . z The selec ted tray contains med ia that is corr ectly loade d and a djuste d.
General tr oublesh ooting in format ion 171 General troubleshooting in f ormation The following list s sym ptoms an d typica l sol utions to miscel laneou s problems.
172 Chapter 7 Troubl esho oting En velopes are wrinkling z V er ify that the input tray is tray 1. z V er ify that the outp ut dest ination i s the face-up bi n.
General tr oublesh ooting in format ion 173 T r ay 2, t ray 3 , a nd tr ay 4 Note Standard sizes are au tomatical ly detected in the se trays . Use these steps to se t the size for custom medi a in tra y 2, tra y 3 , and tray 4: 1 Press to o pen the menus.
174 Chapter 7 Troubl esho oting Po w e r - o n The pr inter control pan el sho uld be func tional as soon as possible in the tr oubleshootin g process so that the pr inter diagnos tics can a ssist in l ocating prin ting err ors.
Troubles hootin g by usi ng contr ol-panel messag es 175 T r ou bleshooting b y using con tr ol-panel m essages The con trol pane l shoul d show the m essage READY , PAUSED , or POWERSAVE ON . For inf o r mation abo ut error mes sages t hat appe ar , see t he ev ent log.
176 Chapter 7 Troubl esho oting 1 Check the ev ent log for spec ific er ror trends in the l ast 10, 000 pr inted pages. 2 Ask the custo mer for any obser ved erro r trends ( for e xa mple, if ja ms tend to occur in a spec ific area of th e pri nter). 3 Reco rd an y specif ic er ror tr end s.
Troubles hootin g by usi ng contr ol-panel messag es 177 Vi ew t h e ev e nt l og Use the ev ent log to scroll thr ough the c ontents of the ev ent log fr om the c ontrol pa nel. The 50 most recent events appear , with the most recent a ppear ing fi rst.
178 Chapter 7 Troubl esho oting Contr ol-pa nel m essages Make sure to re ad the exact text of the co ntrol-pane l messa ge, includin g the error -messa ge number and the te xt, in order t o locate t he error messa ge in the ta bles. This contr ol pane l store s enhance d informati on.
Control -panel m essages 179 Contr ol-panel and e vent-log messa ge for mat The con trol-panel messag es are i n the following f or mat: z 13.XY.ZZ JAM INSIDE DUPLEXER z WAITING FOR TRAY XX TO LIFT z 40 EIO X BAD TRANSMISSION The ev ent-log message s are in the following for mat: z 3 13.
180 Chapter 7 Troubl esho oting Alphabetical e rr or messa ges T able 20. Alp habetic er ror messages Messag e Event-log error message Description or ex planation Recommended action [FS] DEVICE FAILURE To enter menus press alternates wit h READY To enter menus press The pr in ter de te cted a device f ailure on the sp ecified de vice .
Control -panel m essages 181 CARTRIDGE FAILURE For help press alternates wit h RETURN FOR REPLACEMENT For help press z The print cartridge is def ective . z The toner-s ensor co ntact ass embly is defective. z The high- voltage po wer supp ly is def ectiv e .
182 Chapter 7 Troubl esho oting DATA RECEIVED PRESS TO CONTINUE alternates wit h READY To enter menus press The print er has rec eiv ed dat a. Press to print the last page. DELETING The pr i n ter is de l eti ng the sto red job. No acti on is ne cessary .
Control -panel m essages 183 INITIALIZING PERMANENT STORAGE z The printer ha s just been turned on. z P er manent sto r age is initia lizing. No action is neces sary . INPUT PAPER PATH OPEN The pape r-path b etween th e printer and th e e xter nal pap er- handlin g inpu t de vice is open .
184 Chapter 7 Troubl esho oting MEMORY SHORTAGE JOB CLEARED For help press alternates wit h READY To enter menus press The printer ran out of memory (the remai nde r of t he job is ca nc ele d). 1 Add addition al memory . 2 Add a hard d isk. 3 V erify the job and progr am settings .
Control -panel m essages 185 PRINTING CONFIGURATION A config urati on page i s printing . No action is necessary . PRINTING EVENT LOG An e v ent log is print ing. No action is necessary . PRINTING FILE DIRECTORY A file directory page i s printing. No action is neces sary .
186 Chapter 7 Troubl esho oting SCAN CARRIAGE LOCKED The sc an ca r ria ge i s locked. Unlo ck the s c a n car r i age. SCAN FAILURE A scann ing job f ailed. T urn off the printer , and then turn the printer on again. SETTING SAVED A v alue is sa ve d.
Control -panel m essages 187 TRAY XX SIZE= *DETECTED SIZE For help press alternates wit h TRAY X SIZE= *DETECTED SIZE To change, move switch in tray x The custom s witch is in the “Standard” positi on, and th e custom er selec ts a v alue from the menu.
188 Chapter 7 Troubl esho oting Numerical er r or messa ges T able 21. Numeric er ror messages Contr ol panel message Event-log err or messag e Description Recomme nded action 13.01.00 JAM IN TRAY 1 For help press 13.01.00 A page is jammed in the paper path at th e tra y 1 f eed area.
Control -panel m essages 189 13.03.00 JAM IN TRAY 1 For help press 13.03.00 z A page is jam med i n the pap er path at the tra y 1 f eed area . z The medi a did not r each the registratio n sensor (PS2) within the sp eci fie d time . 1 Clea r the jam in the indicated area.
190 Chapter 7 Troubl esho oting 13.05.00 JAM INSIDE RIGHT DOOR For help press 13.05.00 z A page is jam med i n the pap er path at the fuser area. z The lead ing edge of the m ed ia did not reach the fuser del ivery sensor (PS5 02) withi n the specifi ed tim e.
Control -panel m essages 191 13.09.00 JAM INSIDE LEFT DOOR For help press 13.09.00 z A page is jam med i n the pap er path at the f ace -down bi n. z The lead ing edge of the m ed ia did not re ach th e fa ce-do wn bin deli very sens or (PS1451) within the sp eci fie d time .
192 Chapter 7 Troubl esho oting 13.11.00 JAM INSIDE DUPLEXER DOOR For help press 13.11.00 z A page is jam med i n the pap er path at the rev ersing a rea. z The tr ailing e dge of the media did not l ea ve the re v ersed paper sen sor (PS2002) in the duple xer w ithin th e specifi ed time.
Control -panel m essages 193 13.11.08 JAM IN INPUT ACCESSORY For help press 13.11.08 z A page is jam med i n the pap er path at t he vertical transf er unit regi str at ion area . z A paper -deliv ery dela y jam occurred. 1 Clea r the jam in the indicated area.
194 Chapter 7 Troubl esho oting 13.12.00 JAM INSIDE LEFT DOOR For help press 13.12.00 z A page is jam med i n the pap er path at the duple x er . z The lead ing edge of the m ed ia did not re ach th e duple xer paper sen sor (PS2004) within the sp ecified t ime.
Control -panel m essages 195 13.12.10 JAM IN LEFT ACCESSORY For help press 13.12.0A Media w as presen t in the pa per path wh en po wer w as turned on. 1 Clear the jam. 2 Chec k fo r mechan ical inter ference in th e fl ipp er an d pape r -p at h ro lle rs.
196 Chapter 7 Troubl esho oting 13.12.20 JAM IN LEFT ACCESSORY For help press 13.12.14 z Media is prese nt in t he accum ulator when the printer is turned on. z Media is acti vat ing the e xit sensor w hen the p rinter is turned on. 1 Clear the jam. 2 T urn off the printer , and then turn the printer on again.
Control -panel m essages 197 13.12.31 JAM IN LEFT ACCESSORY For help press 13.12.1F Media i s jamme d in the st apler unit. 1 Clear the jam. 2 T urn off the printer , and then turn the printer on again. 3 Send a staple job to the stapl er . 4 Repl ace the s tapler uni t.
198 Chapter 7 Troubl esho oting 13.20.00 JAM INSIDE FRONT DOOR For help press 13.20.00 z A page is jam med i n the pap er path. z Media is prese nt in t he printer .
Control -panel m essages 199 13.21.00 JAM INSIDE LEFT DOOR For help press 13.21.00 A door is open. 1 Clos e the door so that the printer attem pts to cl ear the paper pat h . 2 Clea r the jam in the indicated area. 3 P erf orm a paper- path test. See p age 213.
200 Chapter 7 Troubl esho oting 13.30.00 JAM INSIDE RIGHT DOOR For help press 13.30.00 A page is jammed in the pic kup area o f tra y 1. 1 Clea r the jam in the indicated area. 2 Clos e the door so that the printer attem pts to cl ear the paper pat h .
Control -panel m essages 201 13.XX.YZ JAM IN TRAY N 13.01.00 -or- 13.01.00 -or- 13.30.00 z A tra y 2 pic kup jam has occurred ( N = 2 ) (PS1402). z A tra y 3 pic kup jam has occurred ( N = 3 ) (PS1404). z A tra y 1 pic kup jam has occurred ( N = 1 ). 1 Clea r the jam in the indicated area.
202 Chapter 7 Troubl esho oting 13.XX.YZ JAM INSIDE DUPLEXER 13.12.00 -or- 13.13.00 z A duple xing dela y jam ha s occurred. z A duple xing st ay jam has occurred. 1 Clea r the jam in the indicated area. 2 Clos e the door so that the printer attem pts to cl ear the paper pat h .
Control -panel m essages 203 22 EMBEDDED I/O BUFFER OVERLOW 22 The printe r embedde d I/O buff er ov erflow ed during a b usy state . 1 T o continue printi ng, press (som e data will be lost). 2 T urn off the printer , and then turn the printer on again.
204 Chapter 7 Troubl esho oting 40 EIO X BAD TRANSMISSION To continue press 40 A connec tion with t he EIO card in slot X ha s bee n abnormally interrupted. 1 T o contin ue printing, press (some wil l be lost). 2 T urn off the printer , and then turn the printer on again.
Control -panel m essages 205 41.X PRINTER ERROR For help press alternates with To continue press 41.X A printer error o ccurred, and X correspo nds to the f ollo wing i ssue: • 1 = Unkn own mispr int error • 2 = Beam detect error • 4 = No vi deo syn c 1 T o contin ue printing, press .
206 Chapter 7 Troubl esho oting 52.X PRINTER ERROR For help press alternates with To continue cycle power 52.X A printer error o ccurred, and X correspo nds to the f ollo wing i ssue: 0 Scanner error 1 Scann er star tup err or 2 Scan ner rotation error 1 T urn off the printer , and then turn the printer on to conti nue.
Control -panel m essages 207 57.XX PRINTER ERROR For help press alternates with To continue cycle power 57.X A printer error o ccurred, and X correspo nds to the f ollo wing i ssue: 1 Cartr idge f an .
208 Chapter 7 Troubl esho oting 60.X PRINTER ERROR For help press 60.X Tr a y X is lift ing the medi a to t he top of the tr ay f or correct f eeding, b ut someth ing is pre ve nting the lift proce ss. 2 Error in tra y 2 3 Error in tra y 3 1 Open t ra y X .
Control -panel m essages 209 66.11.01 For help press 66.11.01 The pape r path c onnectio n unit is not inst alled. Install th e pape r-path conn ection unit. 66.12.20 OUTPUT DEVICE FAILURE For help press 66.12.14 z The ret ainer sensor was not activ ated.
210 Chapter 7 Troubl esho oting 67.X The outp ut de vice i s not attache d when the pr i nter is t ur ned on . 1 At po wer-on , make s ure that the outp ut de vice is attached corre ctl y . 2 Mak e sure that the JetLink connec tor is in stalle d corre ctl y .
Control- pan el message s 21 1 69.X PRINTER ERROR To continue cycle power 69.X A printer error oc curred where X is detailed belo w . 0 The dup le x mechanis m f ailed 1 The duple x side-ad just f ailed 1 T urn off the printer , and then turn the printer on to conti nue.
212 Chapter 7 Troubl esho oting 80.XXXX EIO ERROR 80.XXXX The EI O acce ss or y ca rd in slot X encount ered a critical e rror . 1 T urn off the prin ter , and then turn the printer on again. 2 Rese at the E IO ca rd. 3 Mo ve the EIO ca rd to a differen t slot .
User- an d servic e-level di agnos tics 21 3 User - and service-level diagnostics The following se ction s descr ibe diagno stic s for the pr inter . P aper-path test The pape r-path t est can b e used to veri fy that v ar ious pape r paths are wor king co rrectly o r to troubleshoot pr oblems with tray config uratio n .
214 Chapter 7 Troubl esho oting 0104 T ra y 1 f eed motor T ra y 1 0105 Swit chbac k moto r Duple x er 0106 Duplex feed motor Dupl e xer 0107 Duplex feed motor 2 Duplex e r 0108 Side r egistration mot.
Servic e-level di agnostic s 215 Service-level diagnostics Engine test The engi ne test verif ies that th e pr int eng ine is fu nction ing cor rectly . Be cause the formatt er is complete ly bypassed dur ing an en gine te st, this te st is v er y useful f or isolatin g pri nter p roblems.
216 Chapter 7 Troubl esho oting Diagnost ics flo w chart Use this f lowchar t to he lp ide ntify the c ause of hi gh-lev el prin ter problems f o r the HP Lase rJet 9000 , HP Las erJet 9 000mfp, HP Laser Jet 9000L mfp, HP LaserJ et 9040/905 0, and HP Lase rJet 904 0mfp/ 9050mfp.
Other diagnost ics for the HP LaserJet 9 000, 9000mf p, and 9 000Lmfp 217 Other diagnostics for th e HP LaserJet 9000, 9000mfp , and 9000Lm fp Cold reset P erformi ng a cold res et clea rs all d ata fr om the p rinte r memor y and retu r ns al l of the default setting s to the factor y se ttin gs.
218 Chapter 7 Troubl esho oting T o initialize NVRAM or perform a skip disk Note The mode l number , the seri al number , the usag e data, and th e error ev ent log i nformation is retai ned when pe rf or ming a disk initiali zatio n. 1 T ur n off the pr inte r .
Other diagnost ics for the HP LaserJ et 9040/ 9050, 9040m fp, and 9050mfp 219 Other diagnostics f or the HP LaserJet 9040/905 0, 9040mfp, and 9050mfp Cold reset P erformi ng a cold res et clea rs all d ata fr om the p rinte r memor y and retu r ns al l of the default setting s to the factor y se ttin gs.
220 Chapter 7 Troubl esho oting T o initialize NVRAM or perform a skip disk Note The mode l number , the seri al number , the usag e data, and th e error ev ent log i nformation is retai ned when pe rf or ming a disk initiali zatio n. 1 T ur n off the pr inte r .
Tray 4 di agnos tics 221 T r ay 4 d i ag n o s t i cs T ra y 4 can run standal one diagn ostics to test the device mot ors, functiona lity , and sensors. Y ou need one power cord , one #2 Philli ps scr ewdriver , and a smal l flatblade sc rewdriver for the DIP switches.
222 Chapter 7 Troubl esho oting Sta ndal one r unni ng test This test v er ifies tha t tra y 4 is fu nctionin g correc tly . F or this test, us e the LED t hat is lo cated o n the control ler PCA on tra y 4. Note If tra y 4 is mou nted un der neath the pr inter , jams mi ght occu r becaus e the p rint er will not pick up the media.
Tray 4 di agnos tics 223 Note Make sure that you tur n the power supply off an d set a ll the DIP switches to t he off posi tion (nor mal settings ) when you fin ish the diag nostics, or the unit w ill not wor k corr ectly . Then, r eplace the back cover .
224 Chapter 7 Troubl esho oting Jam tr oubleshooting Jams occur eithe r when med ia doe s not rea ch or do es not cl ear a pho tosensor a long th e pri nter paper pa th in a sp ecific a mount o f time. If a medi a jam oc curs, a 13.xx PAPER JAM mess age appears on the pr inter control pa nel.
Jam trou bleshoot ing 22 5 Jams Jams occur mo st often wh en the following condi tions e xist: z T ra y s are n ot correc tly load ed (the me dia do es not mee t the sp ecificatio ns lis ted in the HP LaserJe t Pr inter Family Prin t Media Guid e ) z The medi a is in poor con ditio n z The pr inter needs clea ning If a jam oc curs, a 13.
226 Chapter 7 Troubl esho oting Ev alu ate the inf ormation pages F rom the pr inter control pa nel, pr int page s that give details a bout the pr inter a nd its current configura tion. T he following infor mation pages ar e av ailable: z Configurati on page • If JetDir ect card i s instal led, a Je tdirect page is a lso generated.
Eval uate the informat ion pag es 227 Figure 124. Sample configuration page Note If an HP Jetdir ect EIO c ard is install ed, an H P Jetdirec t configu ration page also prints out.
228 Chapter 7 Troubl esho oting V erify installed options In the ins talled pe rsonali ties and option s section o n the conf iguration p age, look f o r options such as hard dis k informati on, DIMM types (R AM or ROM), an d DIMM sizes. Make sure that th e optio ns insta lled in t he pr inter ar e reflected in the configurat ion pa ge.
Eval uate the informat ion pag es 229 Jetdirect pa ge Use the J etdirect pag e to v iew current networ k set tings, to help troubleshoot prin ter problems, or to v er ify networ k stat istics or protoco l informa tion. Jetdirec t page elements A HP Jetdire ct co nfig urati on B Network statisti cs C Protoc ol informa tion Figure 125.
230 Chapter 7 Troubl esho oting Supplies status page Use the s upplies status pa ge to v iew current pr inter supply st atus, to hel p troubleshoot pr inte r problems, or to verify pri nter informa tion.
Eval uate the informat ion pag es 231 Usage page The usa ge page is design ed to fi t into a pay-per-page (PPP) mo del. A reseller can con figure th e usage pag e with ins truc tions for a custom er to se nd the infor matio n back to the res eller in or der to prepar e bills.
232 Chapter 7 Troubl esho oting File director y page Use the f ile dir ector y p age to v iew current di rector y str uctures, to help tr oubleshoot pr inte r problems, or to verify s torage capa bilities. File directory page elements A Director y inf or m ation Figure 128.
Image-form ation tr oubles hooting 23 3 Image-formation tr ou bleshooting When wor king wi th custom ers, obtain a pri nt sample before troubleshooti ng the pr inter. Ask the cust omer to de scr ibe th e quality expected from t he pr int er . T he pr int sa mple als o help s clar if y the custome r’ s d escr iption of the problem.
234 Chapter 7 Troubl esho oting Check the print c ar tridg e Image-format ion de f ects of ten resul t from problems with the pr int car tridge. Use t he follo wing list to v er ify that th e pri nt car tridg e is operatin g corr ectly . P erfor m all of the following checks before repla cing the p rin t car tridge.
Image-form ation tr oubles hooting 23 5 Image-def ect tables The pr inter output quality i s subj ect to cus tomer j udgment . This sec tion hel ps define prin t-qua lity defects and the factors that affect print q uality . The pr int s amples s hown illu strate some pri nt-quali ty defects.
236 Chapter 7 Troubl esho oting T able 29. Imag e defects Problem Cause Solution Blac k page The hi gh-v oltage pow er supply conne ctions a re con taminated . z Clean the h igh-v oltage p ow er su pply terminals. z Clean the high-v oltage sp rings where the y contact the print cartridge.
Image-form ation tr oubles hooting 23 7 Wrinkles o r creas es The m edia does not meet pr inter specifi cation s or is s tored inco rrectly . z Print a f ew mo re page s to see if the proble m corr e cts i t self. z T urn ov er the sta c k of med ia in the t ra y .
238 Chapter 7 Troubl esho oting Conta mination on bac k Contaminatio n inside printer (f or example, tray sepa ratio n ro ller, f eed roller , tra nsf er ch arging roll er , fuser , print cartr idge) e xists. z Pr int a t le ast 10 page s to se e if the probl em go es a wa y .
Image-form ation tr oubles hooting 23 9 Bubbles A drum g round p ath does n ot e xist. z Check the drum g round spring and reconnec t it, if necessa ry . z Replace th e high-vo ltage po wer supply . Note With no g round path, the drum cann ot discha rge .
240 Chapter 7 Troubl esho oting Light print, da rk print, or fa d e Also see "Bubb les" on page 2 39. The toner d ensit y setting is inco rrect. z F rom the con fi gure d evice menu on t he cont rol pa nel , adj ust t h e to ner de nsi ty setting (m ake sure Econ oMode is off).
Image-form ation tr oubles hooting 24 1 Pa g e s k e w The media does not meet pr inter specifi cation s or is s tored inco rrectly . z Print a f ew mo re page s to see if the proble m corr e cts i t self. z T urn ov er the sta c k of med ia in the t ra y .
242 Chapter 7 Troubl esho oting V er tical do ts The static charge el imina tor teeth are conta minated. z Clea n the s tatic ch arge el iminator . P oor con tact e xists betwe en the static charge el imina tor and the high- vo ltage p ow er supply . z Clean t he contac ts, i f cont aminated .
Image-form ation tr oubles hooting 24 3 Repeating defect ruler Repetitive pri nt defects are usua lly caused by a specific rol ler in the pr inter or the pr int car tridg e. Use the following figure to isolat e the caus e of repe titive print d efects .
244 Chapter 7 Troubl esho oting Media troub leshooting Media defects can c ause ja ms and im age defects. If the p re viousl y descr ibe d conditi ons are correcte d and do not elim inate th e pr inting pr oblem, continue t o investigate the m edia as the source of the defect.
Media tr oubles hooting 245 Determine whether the printer is exp eriencing mis feeds or multifeed ja ms The following are som e poss ible causes o f misfeeds or multi f eed jam s: z The medi a might b e too he avy . Check ba sis weight and mea sure ca liper .
246 Chapter 7 Troubl esho oting Communication troubleshooting Comm unications c h eck Note Communicati on problems are nor mal ly the c ustomer’ s respons ibilit y . Time spent a ttempting to resol v e these problems might not b e cov ered by the He wlett-P ackard warranty .
Communic atio n troubl es hoot ing 24 7 Embedded LAN troub leshooting (HP LaserJet 9040n/9050n, HP LaserJet 9040dn/9050dn, HP LaserJet 9050mfp, and HP LaserJet 9040mfp only) Although network ing is i ntegrated, the e mbedded LAN has additiona l features to ass ist in troubleshooti ng.
248 Chapter 7 Troubl esho oting Ping test P erform a ping tes t to check f o r network conne cti vity . A ping tes t is des igned to tr oubleshoot TCP /IP networ k conn ectivity issues by taking ke y par ts of the functiona lity from t he ping utility on Micros oft Windows s ystems.
Communic atio n troubl es hoot ing 24 9 6 Use ( the 9 b utton on MFPs) or (the 3 button on MFPs) to scroll to the app ropriate sele ction ( COLD RESET , SELECT LANGUAGE , NEW MAINTENANCE KIT , o r ENABLE/DISABLE EMBEDDED LAN ). Note Other fu nctions are av a ilable in thi s menu, but are no t applica ble to the LAN.
250 Chapter 7 Troubl esho oting Connectivity prob lems Use the following proce dure if th e pr inter and the networ k confi guration pa ge are correct, b ut th e network pri nter con nectivity is not wo rking. 1 Pri nt a networ k conf iguration p age .
Wiri ng di agr ams 251 Wiri ng diagrams Figure 131. Prin ter wirin g diagram (HP Lase rJet 9000 series printer).
252 Chapter 7 Troubl esho oting Figure 132. Prin ter wirin g diagram (HP Lase rJet 9040 /9050 s eries pr inter).
Wiri ng di agr ams 253 Figure 133. T ray 4 w iring di agram.
254 Chapter 7 Troubl esho oting.
Chap ter contents 255 8 P ar ts and diagr ams Chapter contents Introductio n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256 Order ing par ts . . . . . . . . . . . .
256 Chap ter 8 Parts and diag ram s Introduction The figu res in this cha pter illus trate the maj or suba ssemblies in th e pri nter and their co mponen t par t s.
Introduct ion 25 7 Consumable s, suppli es, accessories, FRUs, and documentation T able 30. Consum ables, suppli es, accesso ries, F RUs, and document ation Pr oduct number Service numb er Ex change n.
258 Chap ter 8 Parts and diag ram s Q2635-6 7903 Firmware Compact Fl ash ( Note: Do not replac e the f or matter and t he Comp act Flash firmw are at th e same time) HP LaserJet 9040mfp a nd HP LaserJ.
Introduct ion 25 9 Document ation Q3721-9 0963 Service man ual bund le f or the HP LaserJet 9 040mfp an d the HP LaserJet 9 050mfp HP LaserJet 9040mfp , HP LaserJet 9050mfp , and the HP LaserJet 9000m.
260 Chap ter 8 Parts and diag ram s C8519 -60104 HP L aserJet 90 00 Series Printer Softw are CD-R OM —Europe C8519 -60105 HP L aserJet 90 00 Series Printer Softw are CD-R OM —Asia C8519 -60106 HP L aserJet 90 00 Series Printer Service CD-R OM (English ve rs ion) C9152 -90901 PM kit ins tallation guide T able 30.
Introduct ion 26 1 Common h ard w are T able 31. Ha rd ware table Examp le Descr iption Siz es U ses Screw M3 by 6 mm M3 by 8 mm M4 by 8 mm M4 by 10 mm Va r i o u s Screw , tapping M3 by 6 mm M3 by 8 .
262 Chap ter 8 Parts and diag ram s Illustrations and p ar ts lists The following illu strations and par ts tables list th e field r eplaceable un its (F R U s) for this pr inter .
Illu strati ons and p arts li sts 263 T able 33 . Printer external covers and pane ls Ref Des cription 9000 pa rt numbe r 90 40/9050 p art numb er ( if diffe rent ) Qty 1 Cov er , right top RB2-565 9-.
264 Chap ter 8 Parts and diag ram s Left door and di verter Figure 135. Left door and diverter 3 4 2 1 T able 34. Left door and diverter Ref Descript ion 9000 par t number 9040/9050 par t numb er (if .
Illu strati ons and p arts li sts 265 Right co ver assemb ly Figure 136. Right cover a ssembly 1 2 3 4 5 6 4 T able 35. Ri ght cover assembly Ref Des cription 9000 par t number 9040/9050 par t numb er.
266 Chap ter 8 Parts and diag ram s Internal Internal components Figure 137. Internal components (1 of 4) 9 7 6 3 5 4 1 2 3 4 8 12 10 11 13 13 13 13 13 13 13 14 14 14 14 14 15 15 16 16 16 16 17 17 18 .
Internal 267 T able 36. I nternal components ( 1 of 4) Ref De scription 9000 par t number 9040/9050 par t numb er (if d iffer en t) Qty 1 Guide, pic kup RB2-5522 -000 C N 1 2 Guide, cartridge R B2-5 5.
268 Chap ter 8 Parts and diag ram s Figure 138. Internal components (2 of 4) 11 8 7 5 3 2 1 4 5 6 6 9 10 12 12 17 15 14 13 15 16 18 19 20 20.
Internal 269 T able 37. Internal components (2 of 4) Ref Descr iption 9000 pa r t number 90 40/9050 p art number (if diffe rent) Qty 1 F ront fusing mo unt RB2-5517-00 0CN 1 2 F ront fusing r ail RB2-.
270 Chap ter 8 Parts and diag ram s Figure 139. Internal components (3 of 4) 1 1 14 2 2 2 2 2 2 2 4 3 4 7 6 5 8 9 13 10 12 11.
Internal 271 T able 38. Internal components (3 of 4) Ref De scription 9000 par t number 9040/9050 pa rt numb er (if differ ent) Qty 1 Screw , M3 by 6, RS XA9-1275-0 00CN 2 Screw , M3 by 8, RS XA9-1276.
272 Chap ter 8 Parts and diag ram s Figure 140. Internal components (4 of 4) 12 7 3 2 1 4 6 5 8 11 10 9 13 12 12 12 12 13 13 13 13 13.
Internal 273 T able 39. Internal components (4 of 4) Ref Desc ription 900 0 par t number 9040 /9050 par t number (if different) Qty 1 Low v oltage po wer supply assemb ly 110 V RG5-5730-00 0CN RG5-777.
274 Chap ter 8 Parts and diag ram s Drum f eed drive as sembl y Figure 141. Drum feed drive a ssembly 2 1 T able 40. Drum feed d rive assembly Ref De scr ip tion 9000 par t number 9040/9050 par t numb.
Internal 275 Fuser delivery drive assembl y Figure 142. Fuser deliver y drive assembly 1 2 3 4 T able 41. F user deliv ery d rive assembly Ref Desc ription 900 0 par t number 9040/9050 pa rt number (i.
276 Chap ter 8 Parts and diag ram s Car tridge lifter asse mbly Figure 143. Car tri dge lif ter a ssembly 1 2 T able 42. Cart ri dg e lif ter asse mbly Ref D escription 9000 par t number 9 040/9050 p .
Internal 277 500-sheet tr ays (tra y 2 and tra y 3) Figure 144. 500-s heet trays (tr a y 2 and tray 3) 1 2 3 T able 43. 500-s heet trays (tray 2 and t ray 3) Ref De scription 9000 par t number 9040 /9.
278 Chap ter 8 Parts and diag ram s P aper inp ut unit Figure 145. Pape r input unit 1 1 1 1 1 1 1 1 1 2 T able 44. Pa pe r input unit Ref De scriptio n 9000 par t numbe r 9040/90 50 par t numb er (if.
Internal 279 Registration assem bl y Figure 146. Registration assembly T able 45. Registrat ion assembly Ref De scription 9000 par t number 9040/9 050 par t numb er ( if diffe rent ) Qty Registr atio .
280 Chap ter 8 Parts and diag ram s T ransfe r r oller ass emb ly Figure 147. T ra nsfer roller assembly 1 2 3 T able 46. T ransfer roller assembly Ref De scr iptio n 9000 par t number 904 0/9 050 par.
Internal 281 Delivery assemb ly Figure 148. Deliver y ass embly 1 2 4 5 6 3 9 8 7 10.
282 Chap ter 8 Parts and diag ram s T able 47. Delivery assembly Ref De scr iptio n 9000 par t number 904 0/9 050 par t number (if different) Qty Deliv er y assemb ly RG5-56 43-030C N 1 1 Deliv ery cr.
Internal 283 PCA assembl y location Figure 149. PCA assembly location 1 2 3 4 T able 48. PCA loca tion Ref Desc ription 9000 par t number 9040 /9050 par t number (if di ff erent) Qty 1 DC control ler .
284 Chap ter 8 Parts and diag ram s Tr a y 4 T ray 4 main body Figure 150. T ra y 4 ma in b ody (1 o f 2) 11 6 5 4 3 2 1 10 9 8 8 7 8 8 10 10 12 13 14 15 16 18 17.
Tray 4 285 T able 49. T ray 4 main body (1 o f 2) Ref De scr iptio n 9000 part number 9040/9050 par t number (i f diff erent) Qty 1 C over , fr ont RB2-76 48-0 40C N 1 2 C over , r igh t RB2 -76 4 9-0.
286 Chap ter 8 Parts and diag ram s Figure 151. T ra y 4 ma in b ody (2 o f 2) 7 6 4 3 2 1 5 8 8 8 8 8 8 3 9 10.
Tray 4 287 T able 50. T ray 4 main body (2 o f 2) Ref De scription 9000 par t number 9040 /9050 par t number (if di ff erent) Qty 1 Caster , bac k RB2-7678-020C N 2 2 Caster , front s wivel RB3-0304-0.
288 Chap ter 8 Parts and diag ram s T ra y 4 drive assemb ly Figure 152. T ray 4 driv e assembly 2 1 T able 51. T ray 4 drive ass embly Ref Descrip tion 9000 par t number 904 0/9 050 pa r t number (if.
Tray 4 289 T ra y 4 PCA l ocation Figure 153. T ray 4 PCA lo cation 1 2 3 4 T able 52. T ray 4 PCA locati on Ref Desc riptio n 9000 pa r t number 9040/9050 par t number (if different) Qt y 1 P aper si.
290 Chap ter 8 Parts and diag ram s Tr a y 1 Figure 154. T ray 1 assembly 1 2 5 3 4 T able 53. T ray 1 assembly Ref Desc ription 9000 par t number 90 40/905 0 part numb er (if d iffer en t) Qty T ra y.
Alphabet ical parts li st 291 Alphabetical par ts list T able 54. Alp habetical p ar ts list Descrip tion P art number Figure and p age Arm, front cov er RB2-565 4-000CN Figu re 137 on p age 26 6 Arm,.
292 Chap ter 8 Parts and diag ram s Cov er , r ight lo wer RB2-568 9-000CN Figu re 134 on p age 26 2 Cov er , r i ght rail RB2-568 2-000CN Figure 134 o n page 26 2 Cov er , r ight top RB2-565 9-000CN .
Alphabet ical parts li st 293 Fusing ja m clearing a ssemb ly RG5-5 700-000CN Figure 137 o n page 26 6 Fusing po wer cab le RG5-5771 -000CN Figure 1 38 on page 268 Gear , 21T RS5-070 8-000CN Figu re 1.
294 Chap ter 8 Parts and diag ram s Motor , DC, 24V (M1) (HP Lase rJet 9000) RG5-5288 -00CN Figure 1 42 on page 275 Mount, bac k fusing R B2-551 8-000CN Figu re 138 o n page 26 8 Mount, damper RB2-557.
Alphabet ical parts li st 295 Screw , M3 b y 8, RS XA9-1276-000CN Figu re 138 on p age 268 Screw , M3 b y 8, RS XA9-1276-000CN Figu re 139 on p age 270 Screw , M3 b y 8, RS XA9-1276-000CN Figu re 140 .
296 Chap ter 8 Parts and diag ram s Numerical par ts list T able 55. Nu merical par ts li st P art number Description Figure and page 0515-4318 T ra y 4-to-en gine s tabilizi ng scre ws Figure 150 o n.
Numeric al parts list 297 RB2-5697- 000CN Cov er , r ight door Fi gure 137 o n page 266 RB2-5700- 000CN Latch, roll er-action Figure 13 4 on page 262 RB2-5701- 000CN Co ve r , operati on pan el, 100 t.
298 Chap ter 8 Parts and diag ram s RG5-565 1-000CN T rans f er guide assembly Figure 13 8 on p age 268 RG5-565 3-000CN Hold er , transf er Fi gure 147 o n page 280 RG5-565 4-000CN Guide , transf er/p.
Numeric al parts list 299 RG5-576 4-000CN Multi-p urpose grou nding cabl e Figu re 136 on page 26 5 RG5-577 1-000CN Fusing power c able Fi gure 13 8 on page 268 RG5-577 2-000CN Fuser h igh-v oltage ca.
300 Chap ter 8 Parts and diag ram s RH7-5297-0 00CN F an, #4, front deliv er y Figure 148 o n page 281 RH7-5302-0 00CN F an, #6, fac e dow n tra y Figure 148 o n page 28 1 RG7-530 6-000CN F an, #5, ca.
Index Index301 Inde x Sym bol s * (asterisk), next to control panel select ions 31 Numerics 2,000-sheet input tray. See tray 4 3,000-sheet stacker communications, troubleshooting 228 Install guide 259.
Index302 Index cartridges capacity 2, 4 checking 234 components, oper ations 85 EconoMode 45, 68 error mess ages 181 handling 67 image forma tion operations 84 level detection operations 79, 86 low 47.
Index Index303 D dark pages, troublesh ooting 236, 240 dark setting, toner density 45 data communication operations 81 Data light, locating 30 data transmission settings 48 date, setting 46 DC control.
Index304 Index envelopes default image size, setting 41 fuser lever positioning 237 output path 244 sizes supported 26 specifications 19 storing 23 wrinkled, troubleshooting 172 environmental pro duct.
Index Index305 fuse r assembly 60 assembly, rem oving 134 cleaning 65 connector holder assembly, removing 147 contamination, troubleshooting 238 control circuit operations 80 delivery drive assembly, .
Index306 Index J jam detection lever driver solenoid (SL501) 92 jam removal knobs, remov ing 1 23 JAM sequ ence of operations 73 jams causes of 225 cleaning spilled toner after 61 clearing 225 error m.
Index Index307 manual feed control panel settings 42 error messages 183 manuals, part numbers 259 map, control panel menus 37 map, menu 38 margins, settings 44 media coated 22 configuring trays 172 de.
Index308 Index operating environment acclimating to 170 print cartridges 67 printer, sp ecifications 8, 16 operations bias generation circuits 79 DC controller 76 engine control system 75 formatte r 8.
Index Index309 photosensitive drum bias generation 79 cleaning process, image formation operations 85 feed drive assembly, di agrams and part numbers 274 ground path, troubleshooting 239 image defects.
Index310 Index private jobs control panel settings 38 timeout settings 46 production code, locating 6 programs, changing settings from 33 proof and hold jobs control panel settings 38 timeout settings.
Index Index311 seal, toner 86 security configuration page information 226 settings 53 Web sites, se ttings 51 Select key, c ontrol panel 31 self-tapping scr ews 99, 261 sensors pickup and feed system .
Index312 Index stored jobs control panel settings 38 timeout settings 46 sto ring envelopes 23 media 22 print cartridges 67 printer 8 straight paper path, using 244 stripped screw holes 99 subassembli.
Index Index313 tray 2 or 3 See also trays configuring 173 diagrams and part numbers 277 feeding, troubleshooting 171 guides, adjusting 224 jam detection operations 88 locating 10 media detection opera.
Index314 Index vertical dots, troubleshooting 242 vertical line spacing settings 43 vertical lines, troubleshooting black 241 white 242 vertical transfer assemb ly, part numbers 258 vertical transfer .
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© 2005 He wlett-P ack ard De velopment Com pany , L.P . www .hp.com *Q3721-90963* *Q3721-90963* Q3 7 21-909 63.
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