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EPSON TERMINAL PRINTER
EPL-N2000
SERVICE MANUAL
EPSON
4006861
NOTICE
All right reserved. Reproduction of any part of this manual in any form wharsoever without SEIKO EPSON's express
written permission is forbidden.
The contents of this manual are subject to change without notice.
All efforts have been made to ensure the accuracy of the contents of this manual. However, should any errors be
detected, SEIKO EPSON would greatly appreciate being informed of them.
The above notwithstanding SEIKO EPSON can assume no responsibility for any errors in this manual or the consequences
thereof.
Epson is a resistoered trademark of Seiko Epson Corporation.
Generall
respective companies.
Copyright 1996 by SEIKO EPSON CORPORATION
Nagano, Japan
PRECAUTIONS
Precautionary notations throughout the tect are categorized relative to 1) personal injury, and 2)
damage to equipment:
DANGER Singnals a precaution which, if ignored, could ressult in serious or fatal personal
injury, Great caution should be exercised in performing procedures preceded by
a DANGER headings.
WARNING Singnals a precaution which, if ignored, could result in damage to equipment.
The precautionary measures itemized below should always be observed when performing repair
/maintenance procedures.
DANGER
1. ALWAYS DISCONNECT THE PRODUCT FROM BOTH THE POWER SOURCE AND THE
HOST COMPUTER BEFORE PERFORMING ANY MAINTENANCE OR REPAIR PROCEDURE.
2. NO WORK SHOULD BE PERFORMED ON THE UNIT BY PERSONS UNFAMIAR WITH
BASIC SAFETY MEASURES AS DICTATED FOR ALL ELECTRONICS TECHNICIANS IN
THEIR LINE OF WORK
3. WHEN PERFORMING TESTING AS DISCATED WITHIN THIS MANUL, DO NOT CONNECT
THE UNIT TO A POWER SOURCE UNIT INSTRUCTED TO DO SO. WHEN THE POWER
SUPPLY CABLE MUST BE CONNECTED, USE EXTREME CAUTION IN WORKING ON
POWER SUPPLY AND OTHER ELECTRONIC COMPONENTS.
WARNING
1. REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON
CERTIFIED REPAIR TECHNICIAN.
2. MAKE CERTAIN THAT THE SOURCE VOLTAGE IS THE SAME AS THE RATED VOLTAGE,
LISTED ON THE SERIAL NUMBER/RATIG PLATE. IF THE EPSON PRODUCT HAS A
PRIMARY-AC RATING DIFERENT FORM THE AVAILABLE POWER SOURCE, DO NOT
CONNECTE IT TO THE POWER SOURCE.
3. ALWAYS VERIFY THAT THE EPSON PRODUCT HAS BEEN DISCONNECTED FROM THE
POWER SOURCE BEFORE REMOVING OR REPLACING PRINTED CIRCUIT BOARDS
AND/OR INDDMDUAL CHIPS.
4. IN ORDER TO PROTECT SENSITIVE m P CHIPS AND CIRCUITRY, USE STATIC
DISCHARGE EQUIPMENT, SUCH AS ANTI-STATIC WRIST STRAPS, WHEN ACCESSING
INTERNAL COMPONENTS.
5. REPLACE MALFUNCTIONING COMPONENTS ONLY WITH THOSE COMPONENTS
RECOMMENTED BY THE MAANUFACTURE; INTRODUCTION OF SECOND-SOURCE ICs
OR OTHER NONAPPROVED COMPONENTS MAY DAMAGE THE PRODUCT AND VOID
ANY APPLICABLE EPSON WARRANTY.
SAFETY INFORMATION
This printer is a page printer which operates by means of a laser. There is no possibility of danger from
the laser, provided the printer is operated according to the instructions in this manual provided.
Since radiation emitted by the laser is completely confined within protective housings, the laser beam
cannot escape from the machine during any phase of user operation.
For United States Users;
[Laser Safety1
This printer is certified as a Class 1 Laser product under the U.S. Department of Health
and Human Services (DHHS) Radiation Performance Standard according to the Radia-
tion Control for Health and Safety Act of 1968. This means that the printer does not
produce hazardous laser radiation.
[CDRH Regulations]
The Center for Devices and Radiological Health (CDRH) of the U.S. Food and Drug
Administration implemented regulations for laser products on August 2,1976. Compli-
ance is mandatory for products marketed in the United States. The label shown below
indicates compliance with the CDRH regulations and must be attached to laser products
marketed in the United States.
WARNING: Use of controls, adjustments or performance of procedures other
than those specified in this manual may result in hazardous radiation exposure.1
[Internal Laser Radiation]
Maximum Radiation Power: 5.0 x 1o-4 (W)
Wave Length: 7 9 0 *2onm
This is a Class IIIb Laser Diode Assay that has an invisible laser beam. The print head
unit is NOT A FIELD SERVICE ITEM. Therefore, the print head unit should not be
opened under any circumstances.
For Other Countries Users;
WARNING: Use of controls, adjustments or performance of procedures other
than those specified in this manual may result in hazardous radiation exposure.
This is a semiconductor laser. The maximum power of the laser diode is 5.0 x
low4 W and the wavelength is 790 + 20 nm.
For Denmark Users;
ADVARS EL
Usynlig laserstrdling ved abning, nar sikkerhedsafbrydere er ude af funktion.
Undna udszttelse for strbling.
I Klasse 1 laser nrodukt der onfvlder IEC825 sikkerheds kravene.
For Finland. Sweden Users:
" VAROITUS
Laitteen kayttaminen muulla kuin t&a kayttoohjeessa mainitulla tavalla saat-
taa altistaa kayttajan turvallisuusluokan 1 ylittavalle nakymattomalle la-
sersateiylle.
I VARNING
Om apparaten anvands pa annat satt %-I i denna bruksanvisning specificerats,
kan anvandaren utsattas for osynlig laserstrhlning, som over&rider gransen
for laser klass 1.
For Finland. Sweden Service PeoDle
VAROITUS
Avattaessa ja suojalukitus ohitettaessa olet alttiina nakymattomalle laser-
sateilylle. Ala katso sateeseen.
VARNING
Osynlig laserstralning nar denna de1 ar Bppnad och sparren ar urkopplad.
Betrakta ei stralen.
For Norway Users;
ADVARSEL
Dersom apparatet brukes pa annen mate enn spesifisert i denne bruksan-
visning, kan brukeren utsettes for unsynlig laserstrdling som over&rider gren-
sen for laser klasse 1.
Dette er en halvleder laser. Maksimal effeckt til laserdiode er 5.0 x lo-" W og
bolgelengde er 790 + 20 nm.
Laser Safety Labels
[Label on rear printer case]
A laser safety labels is attached on the outside of the printer shown below.
For United State
This laser product conforms to the applicable
requirement of 21 CFR
Chapter I, subchapter J.
SEIKO EPSON CORP.
Hirooka Office
80 Hirooka, Shiojiri-shi, Nagano-ken,
Japan
MANUFACTURED:
For Europe
lASERKlASSE1NACHIEC825
CUBS1 LMERPRODUCTTOIEC825
WE1 UWR PR0DUKTI.H.T. IEC825
LUOKANl lAsERwlE
[Label inside printer]
The following laser safety label will be attached inside the printer as shown below.
For Denmark, Finland, Sweden, and Norway
CALITION -
III
INVISIBLE LASER RADIATION WHEN OPEN
AVOID &X'GSURE TO SEAM
vORSlCHT- IJNSlCnTBARE IASE-LUNG WENN
ASDECKUNG GEOFFNET NlCHl DEM SlRAHL
AUSSEIZEN
ADVAflSEL- USYNUG IASERSTliUNG N&l DEKSEL
iPNES UNNGA EKSPONERlNG FGR .STRhN 1
VAROL AVAlTAESSA OLET ALTTIINA NhWMihN
blSEFt.SbElLYUT h.6. KATSO SbEESEEN
ADVARSEL USYNUG LASERStiNG VED hMNG
UNDGA UDS- E FOR Sl-&lNG
VARNING- OSVNIJG IASERSdLNlNG N&l DENNA DEL
AR 6WNAD SThLEN iR FARLIG I I
For Finland. Sweden Users:
" VAROITUS
Laitteen kayttaminen muulla kuin " kayttoohjeessa mainitulla tavalla saat-
taa altistaa kayttajan turvallisuusluokan 1 ylittavalle nakymattomalle la-
sersateiylle.
I VARNING
Om apparaten anvands pa annat satt %-I i denna bruksanvisning specificerats,
kan anvandaren utsattas for osynlig laserstrhlning, som over&rider gransen
for laser klass 1.
For Finland. Sweden Service PeoDle
VAROITUS
Avattaessa ja suojalukitus ohitettaessa olet alttiina nakymattomalle laser-
sateilylle. Ala katso sateeseen.
VARNING
Osynlig laserstralning nar denna de1 ar Bppnad och sparren ar urkopplad.
Betrakta ei stralen.
For Norway Users;
ADVARSEL
Dersom apparatet brukes pa annen mate enn spesifisert i denne bruksan-
visning, kan brukeren utsettes for unsynlig laserstrdling som over&rider gren-
sen for laser klasse 1.
Dette er en halvleder laser. Maksimal effeckt til laserdiode er 5.0 x lo-" W og
bolgelengde er 790 + 20 nm.
Laser Safety Labels
[Label on rear printer case]
A laser safety labels is attached on the outside of the printer shown below.
For United State
This laser product conforms to the applicable
requirement of 21 CFR
Chapter I, subchapter J.
SEIKO EPSON CORP.
Hirooka Office
80 Hirooka, Shiojiri-shi, Nagano-ken,
Japan
MANUFACTURED:
REVISION SHEET
Revision Issued Date Revision Page
Rev. A November 17, 1996 1st issued
TABLE OF CONTENTS
CHAPTER 1. GENERAL DESCRIPTION
CHAPTER 2. OPERATION PRINCIPLES
CHAPTER 3. DISASSEMBLY AND ASSEMBLY
CHAPTER 4. ADJUSTMENTS
CHAPTER 5. TROUBLESHOOTING
CHAPTER 6. MAINTENANCE
APPENDIX
Chapter 1 Product Description
Table of Contents
1.1 FEATURES 1-1
1.2 SPECIFICATIONS 1-4
1.2.1 Basic Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
1.2.2 Electric Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
1.2.3 Specifications for Reliability and Durability. . . . . . . . . . . . . . . . . . . . . . . . 1-8
1.2.4 Environmental Conditions for Operation (Including Consumables) . . . . . 1-9
1.2.5 Environmental Conditions for Storage and Transportation . . . . . . . . . . 1-10
1.2.6 Specifications for the ImagingCartridge . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
1.2.7 Applicable Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
1.2.8 Physical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
1.2.9 Process Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
1.2.10 Controller Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
1.2.11 Software Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
1.2.12 Font Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
1.3 INTERFACE SPECIFICATIONS 1-17
1.3.1 Parallel Interface Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17
1.3.1.1 Parallel Interface B Type Specifications . . . . . . . . . . . . . . . . . . . 1-17
1.3.1.2 Parallel Interface C Type Specifications . . . . . . . . . . . . . . . . . . . 1-22
1.3.1.3 Network Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23
1.3.2 Serial Interface Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24
1.3.3 Optional LocalTalk Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26
1.4 OPERATING INSTRUCTIONS 1-27
1.4.1 Control Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27
1.4.2 Panel Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29
1.4.3 Service Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-36
1.4.3.1 Hexadecimal Dump Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-36
1.4.3.2 EEPROM Initialize Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-36
1.4.3.3 Formatting Flash Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-36
1.4.3.4 Page Counter Clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-36
1.4.3.5 Flash ROM Updating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-36
1.4.4 Display of Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-37
1.4.4.1 Status Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-37
1.4.4.2 Error Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-38
1.4.4.3 Warning Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-46
1.4.4.4 Message at Power On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-49
1.4.4.5 Service Call Error Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-49
1.4.5 Printer Sharing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-50
1.4.5.1 Port Fixed Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-50
1.4.5.2 Auto Sense Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-50
1.4.6 Controller RAM Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-51
1.4.7 EJL (EPSON Job Control Language) . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-51
1.4.8 BiRITech (BI Resolution Improvement Technology) . . . . . . . . . . . . . . . . 1-51
1.4.9 PGI (Photo and Graphics Improvement) . . . . . . . . . . . . . . . . . . . . . . . . . 1-52
1.4.10 Toner Saver Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-52
1.4.11 Precaution for Power Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-52
1.5 MAIN COMPONENTS 1-53
1.5.1 C207 MAIN Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-54
1.5.2 PWB-A Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-55
1.5.3 PWB-E Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-55
1.5.4 PWB-F Board Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-56
1.5.5 Paper Takeup Roller Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-56
1.5.6 Registration Roller Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-57
1.5.7 Transfer Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-57
1.5.8 Print Head Unit (Optical Unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-58
1.5.9 Fusing Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-58
1.5.10 Drive Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-59
1.5.11 ImagingCartridge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-59
1.5.12 Cassette Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-60
List of Figures
Figure 1-1. Exterior View of the EPL-N2000 . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Figure 1-2. Printable Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Figure 1-3. Space Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Figure 1-4. Timing Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17
Figure 1-5. Operation Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27
Figure 1-6. Interface Port Fixed Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-50
Figure 1-7. Interface Auto Sense Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-50
Figure 1-8. BiRITech Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-51
Figure 1-9. Toner Saver Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-52
Figure 1-10 Main Component Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-53
Figure 1-11. C207 MAIN Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-54
Figure 1-12. PWB-A Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-55
Figure 1-13. PWB-E Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-55
Figure 1-14. PWB-F Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-56
Figure 1-15. Paper Takeup Roller Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-56
Figure 1-16. Registration Roller Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-57
Figure 1-17. Transfer Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-57
Figure 1-18. Print Head Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-58
Figure 1-19. Fusing Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-58
Figure 1-20. Drive Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-59
Figure 1-21. ImagingCartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-59
Figure 1-22. Cassette Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-60
List of Tables
Table 1-1. Options and Consumables for EPL-N2000. . . . . . . . . . . . . . . . . . . . 1-2
Table 1-2. Paper Feed Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Table 1-3. Available Paper Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Table 1-4. Paper Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Table 1-5. Usability of Special Paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Table 1-6. Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Table 1-7. Paper Feed Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Table 1-8. Paper Skew . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Table 1-9. Environmental Conditions for Storage . . . . . . . . . . . . . . . . . . . . . . 1-10
Table 1-10. Environmental Conditions for Storage and Transportation. . . . . . . 1-11
Table 1-11. Differences between LJ4-GL/2 Mode and GL-like Mode . . . . . . . . 1-14
Table 1-12. Built-in Fonts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
Table 1-13. Timing in Compatibility Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18
Table 1-14. Pin Assignments for Parallel B Type I/F . . . . . . . . . . . . . . . . . . . . . 1-18
Table 1-15. Pin Assignments for Parallel C Type I/F . . . . . . . . . . . . . . . . . . . . . 1-22
Table 1-16. Pin Assignments for RJ-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23
Table 1-17. Serial Interface Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24
Table 1-18. LocalTalk Interface Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . 1-26
Table 1-19. SelecType Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-30
Table 1-20. Status Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-37
Table 1-21. Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-38
Table 1-22. Warning Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-46
Table 1-23. Messages at Power On. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-49
Table 1-24. Service Call Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-49
Table 1-25. Toner Saver Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-52
1.1 FEATURES
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