Instruction/ maintenance manual of the product ML3321 Oki
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English QUIET PARK TEAR FF/LOAD LF SEL SEL POWER ALARM MENU GROUP EXIT ITEM SET PRINT MENU SHIFT TOF Micro Feed Up Micro Feed Down PRINT QUALITY CHARACTER PITCH HSD NLQ UTL SSD 10 12 15 17 20 PROP ML 3320/3321 Help Guide 3320hlp1.
Ev ery ef fort has been made to ensure that the informa tion in this document is complete, accurate, and up-to-date. Oki assumes no responsibility for the results of error s be yond its control.
i Help Guide English • Do not use your printer near water , or spill liquid of any kind into it. • Be certain that your po wer source matches the rating listed on the back of the printer . If you are not sure , check with your dealer or with your local po wer company .
English ii ML3320/21 • Do not poke anything into the ventilation slots on the sides of the printer; you could g et a shock or cause a f ire. • Aside from the routine maintenance described in this handbook, do not try to service the printer yourself; opening the co ver may e xpose you to shocks or other hazards.
iii Help Guide English Contents Safety .................................................................................. i Maintenance ....................................................................... 1 Replacing the Ribbon Cartridge ..........
English iv ML3320/21 3320hlp2.pm6 13/03/96, 16:00 4.
English 1 Help Guide Maintenance Replacing the Ribbon Car tridge Note: F or the best results, use genuine Oki rib bons. 1. Make sure the printer is turned OFF . 2. Centre the printhead ( ➊ ). Caution! T he pr inthead ma y be HO T! M P ➊ 3. Remo ve and discard the used ribbon cartridge.
2 ML3320/21 5. Install the new ribbon cartridge. 6. T urn the knob ( ➊ ) in the dir ection of the arro w to take up any ribbon slack. Clearing P aper Jams Rear-Feed Jams 1. T urn the printer OFF and use the platen knob to back the paper all the way out.
English 3 Help Guide 6. T ur n the printer on. 7. P ress FF/LO AD . 3. Remo ve any torn pieces of paper . 4. Replace the pull-up roller assembly , and close the access cover .
4 ML3320/21 Correcting Repetitive Rear-Feed Jams If the paper ke eps jamming, you probably ha ve bits of paper stuck in the paper path. 1. Perform steps 1 through 3 under “Rear-F eed Jams. ” 2. Grasp the paper separator ( ➊ ), lift it slightl y , pull back on it, then swing it forward.
English 5 Help Guide 5. Remov e the paper pieces, and use the platen knob to back the paper out. 6. Swing the paper separator ov er , reload re gular paper , and lo wer the paper separator back into place. 7. Replace the pull-up roller assembly , and close the access cover .
6 ML3320/21 Single-Sheet Jams 1. T urn the printer off . 2. Use the platen knob to back the jammed paper out. 3. Open the access co v er and remov e the pull-up roller assembly . 4. Remo ve any tor n pieces from around the carr iage. 5. Reinstall the pull-up roller assembly , and close the access cover .
English 7 Help Guide Cleaning the Housing Y ou should clean the printer ev ery six months (or after about 300 hours of operation). Note: Never use solv ents or strong deter gents on the cabi- net: they could damage the housing. 1. T urn the printer off, and remov e any paper from the path.
8 ML3320/21 T r oubleshooting Pro blem: Nothing happens when I turn on the printer . Solution: Check the po wer cable connection and po wer outlet to your pr inter . If you are using a po wer strip, make sure it is turned on, and that the fuse has not blo wn nor the circuit breaker tripped.
English 9 Help Guide Pro blem: The ALARM light is on and the Character Pitch 15 light is flashing. Solution: This indicates a paper jam. Press the SEL ke y and correct the paper jam situation ( see “Clearing Paper Jams” earlier in this manual). Pro blem: The ALARM light is on and the Character Pitch 10 light is flashing.
10 ML3320/21 Problem: The Print Quality and Char acter Pitch keys on the front panel won’ t work. Solution: The Operator Panel Function in the printer menu can be used to disable these b uttons.
English 11 Help Guide ➎ ALARM ...................... Glows = error condition exists: ➤ out of paper if no other lights are blinking ➤ paper jam if 15 cpi light is also blinking ➤ paper lever is set to wr ong position if 10 cpi light is also blinking.
12 ML3320/21 Print Mode: Contr ol Panel K eys ➎ PRINT QU ALITY ........... Selects the print quality . ➏ FF/LO AD ......................... Loads/ejects single sheet of paper; moves contin uous-form paper to print position. ➐ TEAR ..............
English 13 Help Guide Selecting the Print Quality Important! Fr ont panel settings f or print quality and character pitch can be o v er ridden by software commands.
14 ML3320/21 QUIET PARK TEAR FF/LOAD LF SEL SEL POWER ALARM MENU GROUP EXIT ITEM SET PRINT MENU SHIFT TOF Micro Feed Up Micro Feed Down Selecting the Character Pitc h P r ess CHARA CTER PITCH to selec.
English 15 Help Guide Entering and Exiting the Men u Mode T o enter or e xit the Menu Mode, hold SHIFT while pressing SEL . Resetting the Men u T o reset the Menu to the standard settings: 1. T urn the printer off . 2. Press SEL + LF while turning the printer on.
16 ML3320/21 Summar y of Men u Settings The table below sho ws the items which may appear in the menu. Settings which are engaged at the factor y (defaults) are set in bold italic . Some groups or entries will only a ppear w hen a specif ic emulation is enga g ed, as noted .
English 17 Help Guide Group Item Settings Rear Feed Line Spacing 6 LPI , 8 LPI Fo r m T ear-Off Of f , 500 mS , 1 sec, 2 sec Skip Over Perforation No , Y es Page W idth (ML3321 only) 13.6" , 8" Page Length 11", 11-2/3", 12" , 14", 17", 3", 3.
18 ML3320/21 Group Item Settings Set-Up Operator P anel Function Full Operation , Limited Operation continued Reset Inhibit No , Y es Print Suppress Effecti v e Ye s , N o Auto LF No , Y es Auto CR + No , Y es Print DEL Code* No , Y es SI Select Pitch (10 cpi) + 17.
English 19 Help Guide Explanations of Men u Items 7 or 8 Bits Dat a W ord (ML). If your computer system uses sev en bits to make up each unit of data, change this setting to 7. 7 or 8 Bit Graphics. Choose the graphics your system uses: 7 or 8 dots in each column printed.
20 ML3320/21 Language Set. Replaces certain standard symbols with special characters used in foreign languages. Line Spacing . Change to 8 lpi to print more lines on a page . Operator Panel Function. Change to Limited Oper a tion to deactiv ate the PRINT QU ALITY and CHARA CTER PITCH buttons.
English 21 Help Guide Skip Over P erforation. Change t o Y es if you want the printer to go to the ne xt pa ge when it comes within 1" (25 mm) of the bottom of the page. Keep it set to No if your software has its own page formatting controls. Slashed Letter O.
22 ML3320/21 This feature is normally turned off. T o activ ate it: 1. Press SHIFT ( ➋ ) + SEL ( ➊ ). 2 . P r ess GR OUP ( ➌ ) until one of the follo wing lines appears, depending on which paper feed you are using: REAR FEED Form Tear-Off OFF BOTTOM FEED Form Tear-OFF OFF 3.
English 23 Help Guide Specifications Print Method Impact dot matrix Printhead 9 pins, 0.34mm diameter, thermal protection Print Speed Mode Characters per second Super Speed Draft (SSD) 435 cps High Speed Draft (HSD) 387 cps Utility (UTL) 290 cps Near Letter Quality (NLQ) 72.
24 ML3320/21 Reliability P arameter Reliability Mean T ime Between Failures 10,000 hours at 25% duty (MTBF) cycle and 35% page density Mean T ime to Repair 15 minutes (MTTR) Printhead Life 200 million.
English 25 Help Guide Paper Specif ications (continued) Paper Typ e F e e d W eight W idth Rang e En velopes, T op Only 24 lb. max. 165.1 - 241.3mm single feed (90 g/m²) (6.5" - 9.5") En velopes, Bottom 24 lb. max. 165.1 - 241.3mm continuous feed, Only (90 g/m²) (6.
26 ML3320/21 Index Continuous-form paper jams, clearing .............. 2- 4 specifications ................ 24 Control panel ................ 11-14 D Defaults, menu ............. 16-18 resetting ........................ 15 Dimensions .................
English 27 Help Guide Paper park featur e ............. 2 2 Pin 18 menu setting ........... 2 0 Pitch menu setting ............. 20 Print DEL code menu setting ............................... 20 Print mode menu setting ... 20 Print quality ...........
28 ML3320/21 Oki Systems Compan y Oki Systems (UK) Limited 550 Dundee Road Slough T r ading Estate Slough Berks. SL1 4LE T el: 01753-819819 Fax: 01753-819899 3320hlp3.
An important point after buying a device Oki ML3321 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Oki ML3321 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Oki ML3321 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Oki ML3321 you will learn all the available features of the product, as well as information on its operation. The information that you get Oki ML3321 will certainly help you make a decision on the purchase.
If you already are a holder of Oki ML3321, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Oki ML3321.
However, one of the most important roles played by the user manual is to help in solving problems with Oki ML3321. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Oki ML3321 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
