Instruction/ maintenance manual of the product 188 Epson
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Every effort has been made to ensur e that the inform ation in this document is complete, accura te, and up-to-date. Oki Data assumes no responsibility for the re sults of errors or omissions beyond its control.
3 Cont ents Notes, Cautions, etc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Location . . . . . . . . . . . . . . . . . . . . . . . .
4 • Notes, Cautions, etc. Not es, Cautions, etc. Not e A note appears like this. It provides additional information which helps you to use and understand the product. Impor tant An important message appears like this. It provides supplemental information wh ich can prevent potential problems.
5 • Getting Started Getting Star t ed Location • Select a firm, solid su rface for your printer . • Allow enough space around the printer to easily access the platen knob and the vari ous paper feed p aths. • Make sure a suitable grounded pow er outlet is available nearby .
6 • Getting Started Removing the Shipping Restraint 1. Remove any packing tape. 2. Reach into the top cover slot ( 1 ) and remove the access cover ( 2 ) by lifting it. 3. Remove the printhead shipping restraint. Keep the shipping restraint for future use.
7 • Getting Started Installing/Replacing the Ribbon Car tridge Use only genuine Oki Da ta ribbon cartridges. When replacing a ribbon cartridge, make sure you have the correct replacement ribbon for your printer. The wrong ribbon will not print when installed in your printer.
8 • Getting Started 2. Remove the access cover and center the printhead. 3. If you are replacin g the ribbon cartridge , remove the used one: Impor tant Do not remove the ribbon shield ( 1 ) from th.
9 • Getting Started 4. Unpack the ribbon cartridge and in stall it on the printhead. 5. Press gently on the ribbon cartridge until you feel it click into place.
10 • Getting Started 6. Turn the t ake-up knob ( 1 ) in the direction of the molded arrow to take up any ribbon slack. 7. Replace the access cover . Installing the Plat en Knob Align the notch ( 1 ) with the pin on the plat en shaft and push it firmly into place.
11 • Getting Started Adjusting the Head Gap The head gap is the di stance between the pr inthead and the platen roller. When you use envelopes or multipart forms, you need to have a larger gap than when us ing plain paper.
12 • Getting Started Installing the P aper Separator The paper separator is used for printing on single sheets (no carbons). With continuou s forms paper, it is used to separate the ingoing/outgoing paper to prevent paper jams. 1. Hold the paper separator wi th the spring-l oaded feet down.
13 • Setting Up Your Printer Setting Up Y our Print er P ower Connection 1. Make su re the printer is turned off. 2. Plug the power cord supplied with your printer into the back o f the printer . 3. Plug the other end of the pow er cord into an appropriate grounded outlet.
14 • Setting Up Your Printer Loading P aper Three types of paper can be used with your printer: • Continuous Forms Paper (with or without the optional Pull T ractor) • Single Sheets • Roll Pap.
15 • Setting Up Your Printer P aper Lever Positions Setting the Head Gap Before you load paper, be sure to check the head ga p lever setting (see page 11). = Single Sheet Feed = Continuous Forms Impor tant Do not plug the printer into the power outlet until the following steps have been completed.
16 • Setting Up Your Printer Loading Continuous F orms, Rear F e ed 1. Make su re the printer is turned off. 2. Place the stack of continuous forms paper behind the printer . 3. Remove the access cover ( 1 ). 4. Pull the bail arm lever ( 2 ) — on the left side of the printer — toward the front of the pr inter to lift the bail arm.
17 • Setting Up Your Printer 5. Move the paper lever ( 3 ) — on the right side of the printer — toward the front of the printe r to the conti nuous forms symbol.
18 • Setting Up Your Printer 8. Inse rt the first sheet of pa per between the paper sep arator guides ( 5 ) and push it through the paper separator . 9. Place the paper between t he sprocket feed guides ( 6 ) and feed it behind the platen, gently posit ioning it so that its holes engage the sprockets on t he ends of the platen.
19 • Setting Up Your Printer 10. T urn the platen knob ( 7 ) to advance the paper until it appears in front of the plat en, behind the bail arm. Impor tant Check to be sure that the matc hing holes on either side are engaging the sprockets ( A ).
20 • Setting Up Your Printer 1 1. Push back on the bail arm lever ( 2 ) to lower the bail arm. 12. Use the platen knob ( 7 ) to set the position of the paper to the first printing line. 13. Replace the access cover , being sure to feed the edge of the paper through the sl ot in the cover .
21 • Setting Up Your Printer Loading Continuous F orms, Bottom F e ed 1. Make su re the printer is turned off. 2. Place the printer on a slotted pr inter stand, carefu lly aligning the slot in the stand with the slot in the base of the printer . 3. Place a box of continuous fo rms paper on the stand, under the printer .
22 • Setting Up Your Printer 5. Pull the lock levers ( A ) on the sprocket wheels at either end of the platen forward, then ad just the spro cket wheels ( B ) so that the sprockets align wi th the holes in the continuous forms you are using. 6. Push the levers back to lock the sprocket wheel s in position.
23 • Setting Up Your Printer 9. Insert the first sheet of continuous fo rms paper through the opening in the printer stand and into the bottom of the printer , gently feeding it into the printe r until it appears in front of the platen, and abov e the bail arm.
24 • Setting Up Your Printer 10. Move the bai l arm lever ( 3 ) back to lower the bail arm. 1 1. Use the platen knob ( 5 ) to advance the p aper to the first printing line. 12. Replace the access cover , being sure to feed the edge of the paper through the sl ot in the cover .
25 • Setting Up Your Printer Loading Single Sheets Your printer can accommodate sing le sheets up to 9.5 inches (241 mm) wide. 1. Turn the printer on. Not e Before printing single sheet s, you must remove the Pull Tractor or Roll P aper Stand, if installed.
26 • Setting Up Your Printer 2. Move the paper lever ( 1 ) — on the right side of the printer — toward the rear of the printe r , to the single sheet symbol. 3. Ensure that the printer is off -line (press SELECT if necessary). 4. If you are using pape r wider than 8.
27 • Setting Up Your Printer c. Push back on the levers to lock the sprocket wheels in position. 5. Make sure the bail arm lever ( 2 ) is set to the rear of the printer (closed position).
28 • Setting Up Your Printer 7. Adjust the sheet guide ( 3 ) on the paper sep arator to position the left edge of the sheet, then in sert a single sheet along the guide until it reaches the pinch roller . 8. Pull the bail arm lever ( 2 ) toward the front of the printer .
29 • Setting Up Your Printer 9. Push back the bail arm lever , ensuring that the paper has been positioned correctly . 10.Press SELECT to place the printer on line. T esting Y our Print er Your printer has a built-in test (self test) to make sure that it is set up and working correctly.
30 • Setting Up Your Printer Comput er Connections USB Connection USB Cable Requirements • USB 1.1 or higher • Max. length 19.7 ft. (5 m) • USB “B” series connector Not es • For connection to a PC running Windows ® 98 or above, but not Windows 95 upgraded to Windows 98.
31 • Setting Up Your Printer 1. Attach a suitable USB cable to the USB series “B” port on the back of the printer . 2. Connect the other end of the cable to the computer .
32 • Setting Up Your Printer P arallel (LPT) Connection, I EEE-1 2 84 P arallel/USB Model Only P arallel Cable Requirements • bi-directional • max. length 6 ft. (1.8 m) • 36-pin Centronics type connector 1. Turn both the computer and the printer OFF .
33 • Setting Up Your Printer 2. Attach a suitable bi -directional cable to th e parallel connector on the back of the printer and se cure it with t he wire loops. 3. Attach and secure the cable to your computer . 4. Turn the printer and computer back on.
34 • Setting Up Your Printer Serial Cable Requirements: • Shielded RS-232C cabl e, UL and CSA approved • Max. length 50 ft. (15 m) • 25-pin serial connector . 1. Switch both the comput er and the printer OFF . 2. Plug the cable into the serial port on the back of the printer and tighten the screws.
35 • Setting Up Your Printer Setting up the Print er to W ork with Y our Comput er W indows XP , 20 00, Me, 98, 95, NT 4.0: Install the Print er Driver To print from a Windows-based syst em, install the printer driver located in the Drivers folder on the CD supplied with your printer.
36 • Setting Up Your Printer 3. Click Add Printer . The Add Printer Wizard appears . 4. Follow the on- screen instructions. 5. When you get to t he window which asks yo u to select the manufacturer and model of your printer, click Have Disk , then browse to the approp riate directory on the CD and double click the inf file: 6.
37 • Setting Up Your Printer you have the wrong emulation sele cted, you will see strange characters, incorrect fonts, etc. If you are directly replacing a MICROLINE ML184 Turbo or ML184 printer wit.
38 • Setting Up Your Printer Chang ing the Emulation Default in the Print er Menu The default for the emulat ion in the printer menu is IBM. If you wish to change the menu defaul t to another emulation: 1. Make sure continuous forms paper is loaded.
39 • Operating Your Printer Operating Y our Print er F ront P anel Operation F ront P a nel Lights LED St atus, Function On = Printer is on line. Off = Printer is off line. Flashing = flashes with ALARM light to indicate a fault has been detected. On , SELECT light off = paper o ut.
40 • Operating Your Printer The one lit indicates which print mode is engaged: NLQ = Near Letter Quality UTILITY = Draft mode HSD = High S peed Draft mode, or SSD (Super S peed Draft) if 12 cpi is se lected.
41 • Operating Your Printer F ront P a nel Buttons Button Print Mode Menu Mode Held at Power Up Advances the paper one line Scrolls through the printer menu groups. Initiates printer Self T est (see page 59). LINE FEED + SELECT = Initiates Rolling ASCII test (see page 60).
42 • Operating Your Printer Setting Print er Defaults The printer has an internal menu containing a number of default parameters which can be set to enabl e your printer to match the parameters required by your computer. Using the Menu Mode Ent ering the Menu Mode To enter the Menu Mode, press SELECT while turning on the printer.
43 • Operating Your Printer Sample Default Menu Printout P arallel / USB Model Printer Contro l Emulation Mode IBM Font Print Mode Utility Font DRAF T Mode SSD Font Pitch 10 CPI Font Proportio n al .
44 • Operating Your Printer Changi ng Menu Settings 1. Press SELECT while turning on the printer . 2. Change settings: a. Press LINE FEED to select the relev ant group that needs to be changed (the group is the le ft-hand column on the Menu printout).
45 • Operating Your Printer F or Example The default setting for the zero c haracter is slashed. To change the setting to unslashed: 1. Press and hold SELECT while turning the printer on. The following line prints: Printer Control Emulation Mode IBM 2.
46 • Operating Your Printer Default Menu Selections Default settings are i ndicated in bold italic. Group Item Setting Printer Control Emulation Mode IBM , Epson, ML Font Print Mode Utility , NLQ Courier , NLQ Gothic, Draft (Font) DRAFT Mode HSD, SSD (Font) Pitch 10 CPI , 12 CPI, 15 CPI, 17.
47 • Operating Your Printer Symbol Sets Character Set Set I , Set II, S tandard, Line Graphics, Block Graphics (ML mode only) (Symbol Sets) Language Set American , French, German, British, Danish I,.
48 • Operating Your Printer (Set-Up) Print Registration 0.25 mm Right, 0.20 mm Right, 0.15 mm Right, 0.10 mm Right, 0.05 mm Right, 0 , 0.05 mm Left, 0.1 0 mm Left, 0.15 mm Left, 0.2 0 mm LEft, 0.25 mm Left (Set-Up) 7 or 8 Bits Dat a Wor d ML emulation on ly .
49 • Operating Your Printer (Set-Up) Impact Mode Normal , Quiet Parallel I/F Only appears for printers equipped with Parallel Interface. I-Prime Invalid, Buffer Print , Buf fer Clear (Parallel I*/F).
50 • Operating Your Printer Using the Pull T ractor Unit (if installed) Paper can be loaded from the rear of the printe r or, if you have a slotted printer stand, it c an be loaded from the bottom. 1. Remove the acoustic cover ( 1 ) and access cover ( 2 ).
51 • Operating Your Printer 3. Adjust the right tractor to the paper width by pulling it s lock lever ( 1 ) forward, sliding t he tractor to the des ired position, then pushing the lever back to lock it in place. 4. Pull the paper under the bail ar m and up to t he level of the tractor unit.
52 • Operating Your Printer 7. Place the holes in the paper over the sprockets on the pull tractor unit and close both sprocket covers. 8. Replace the access cover and acoustic cover . Not e Be careful to align the paper properly so that an equal number of holes ar e engaged on the sprockets at either end of the pull tractor.
53 • Operating Your Printer Using the Roll P aper Stand (if installed) Loading the P aper Correct Paper P ath 1. Remove the access cover from the printer .
54 • Operating Your Printer 3. Open the paper separator ( 1 ). 4. Remove the paper roller . No te that there is a disk ( 2 ) on the lef t end of the roller . 5. Slide the roller into a roll of paper , making sure that the disk ( 2 ) is on the left side and that the p aper rolls up from the bottom.
55 • Operating Your Printer 6. Put the paper roller back into the stand, with the disc ( 2 ) on the left side. 7. Feed the paper over (not under!) the roller ( 3 ) on the stand, adjusting the round paper guides on either end ( 4 ) to the p aper width.
56 • Operating Your Printer 10. Pull the p aper lever (right side of printer) toward the front of the printer — to the continuous forms position — and make sure the paper is straight by ad justing it to align t he left and right sides behind the platen with the sides in fr ont of the platen.
57 • Maintenance Maint enance Replacing the Ribbon Car tridge For more details, see page 7. Turn the printer off ! WA RN I N G ! If the printer has been recently used, the printhead may be HOT !.
58 • Maintenance.
59 • Maintenance T esting Y our Print er Self T est (F ont Samples) Your printer has a built-in test (self test) to make sure that it is set up and working correctly. 1. Load continuous forms paper into the printer (see page 14, f f.). 2. Make sure the printer is turned off, then press and hold LINE FEED while turning the printer on.
60 • Maintenance Rolling A SCII T est The Rolling ASCII Test produces a continuous sampling of ASCII characters using the default type style. To run the test: 1. Make sure continuous forms paper is loaded. 2. With the printer tur ned off, press and hold SEL ECT and LINE FEED while turning the printer on.
61 • Maintenance Cleaning the Housing You should clean the printer every six months (or after about 300 hours of operation). 1. Turn the printer of f . 2. Remove any paper from the path. 3. Remove the access cover . ( 1 ) 4. Pull the bail arm lever ( 2 ) forward to lift the bail arm.
62 • Maintenance 7. Push the bail arm lever back and reinstall the access cover . 8. Reload paper . 9. Turn the printer on..
63 • Troubleshooting T roubleshooting General Information Here are some general things to check before proceeding with detailed troubleshooting. • Is the printer plugged in and turned on? • Are .
64 • Troubleshooting General Problems/Solutions Problem ____________________________________________ My word processor file s do not print the wa y I have the menu and front panel set. Solution 1. Check your software applicati on and/or printer driver settings: these override the menu and front panel settings (see Note above).
65 • Troubleshooting Problem ____________________________________________ The printer does not print w hen the computer sends data. Solutions 1. Is th e SELECT light on? If not, press SELECT . 2. Check that the interface cable is securely connected to both the printer and the computer .
66 • Troubleshooting Problem ____________________________________________ Ink smears on the paper w hen I print narrow columns. Solutions The head gap could be too close. Check that the Head Gap Lever ( 1 ) is set correctly (see “Adjus ting the Head Gap” on page 11).
67 • Troubleshooting Problem ____________________________________________ There are dots missing in my pr intouts (typically, tops and /or bottom of characters missing). Solution The head gap may not be set correctl y. Try moving the Head Gap Lever ( 1 ) to a lower setting.
68 • Troubleshooting Problem ____________________________________________ My printer keeps indicating “Paper out” even though there is paper installed. Solution The most likely cause is that the paper sensor groo ve at the left end of the platen is not covered by the paper.
69 • Troubleshooting Clearing P aper Jams Rear F eed Jams 1. Turn the printer of f. 2. Use the platen knob to back t he paper all the way out of the printer .
70 • Troubleshooting 3. Remove the access cover ( 1 ). 4. Move the bai l arm lever ( 2 ) toward the front of the printer to open the bail arm. 5. Remove any torn paper . 6. Reload the paper (see pages 14, ff.). CAUTION! Make sure the printer is tu rned OFF before you remove the access cover .
71 • Troubleshooting 7. Move the bai l arm lever ( 2 ) towards the rear of the printer and replace the access cover ( 1 ) being sure to feed the edge of the paper through the sl ot in the cover .
72 • Troubleshooting Rear F eed, Repeating Paper Jams If the paper keeps jamming, you may have: • defective paper • misaligned paper • bits of p aper in the paper path F or Defective Paper Replace the defective paper with a fresh stack. F or Misaligned Paper 1.
73 • Troubleshooting 4. Reload the paper . 5. Turn the printer back on. F or Bits of Paper in the P aper Path 1. Turn the printer of f. 2. Remove any accessories.
74 • Troubleshooting 3. Use the platen knob to back t he paper all the way out of the printer . 4. Remove the access cover . 5. Remove any debris from the paper path. 6. Replace the access cover and any accessories which you removed. CAUTION! Make sure the printer is tu rned OFF before you remove the access cover .
75 • Troubleshooting 7. Reload the paper . 8. Turn the printer on..
76 • Troubleshooting Single Sheet P aper Jams 1. Turn the printer of f. 2. Use the platen knob to back the paper out. 3. Remove the access cover . 4. Remove any torn pieces from around the carriage. CAUTION! Make sure the printer is tu rned OFF before you remove the access cover .
77 • Troubleshooting 5. Replace the access cover . 6. Turn the printer back on. 7. Reload the paper ..
78 • Parts & Options P ar ts & Options Replacement P ar ts Ribbon Car tridge (Oki 5 21 0200 1) Plat en Knob (Oki 5 345 980 7) P ower Cord (Oki 5 6609 7 0 1) Access Cover ( O k i 534 67 41 0).
79 • Parts & Options Options Pull T ractor (Oki 7 0009 7 0 1) Includes Pull Tractor ( 1 ), Acoustic Cover ( 2 ) and Access Cover ( 3 ). Roll P aper Stand (Oki 7 000 7 7 0 1).
80 • Specifications Specifications General Print Method Impact dot mat rix Printhead 9 pins, 0.30 mm (0.01 18") diameter , with thermal protection Emulations (co-resident) IBM 2480 Epson ESC/P2.
81 • Specifications Pa p e r T ype Feed Weight W idth Cut Sheets Top only 16 to 21 lb. US Bond (60 to 81 g/m²) 3 " to 9.5 " (76 to 241 mm) Continuous, Single Part Rear/Bottom 14 to 20 lb. US Bond (53 to 75 g/m²) 3‘” to 9.9" (76 to 251 mm) Continuous, Multipart • 4 sheets (orig.
82 • Specifications Physical Height 3.15" (80 mm) Width 14.65" (372 mm) Depth 10.83" (275 mm) Weight 9.9 lb. (4.5 Kg) Electrical V oltage 12 0V , +6%, -15% 230V , +15%, -14% Frequency.
83 • Specifications Int er f aces Parallel Models Centronics Parallel, IEEE-1284 compliant USB 1.1 Serial Models RS-232C Serial USB 1.1.
84 • Index Index A Access cover replacement # ........ ................... 78 ALARM light ............. ...................... 39 B Bail arm ........... ...................... ........... 14 Bail arm lever .............. ................... 14 Bottom feed paper loading .
85 • Index L LEDs, front panel .......... ..........39 – 40 Levers ....... ....................... ................ 14 Lights, front panel ......... ..........39 – 40 LINE FEED button ........ ................ 41 Loading paper ....... ..........
86 • Index R Rear feed paper loading ........... ........................16 – 20 Reliability ........... ...................... ........ 81 Replacement parts .......... ............. 78 Ribbon cartridge installing ............. ...................
An important point after buying a device Epson 188 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Epson 188 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 Epson 188 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Epson 188 you will learn all the available features of the product, as well as information on its operation. The information that you get Epson 188 will certainly help you make a decision on the purchase.
If you already are a holder of Epson 188, 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 Epson 188.
However, one of the most important roles played by the user manual is to help in solving problems with Epson 188. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Epson 188 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
