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EPL-5500
SERVICE MANUAL
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EPSON TERMINAL PRINTER
EPL-5500
SERVICE MANUAL
EPSON
4005431
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NOTICE
All rights reserved. Reproduction of any part of this manual in any form whatsoever without SEIKO EPSON's express written permission is forbidden. The contents of this manual are subjects 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 consequence thereof. Epson is a registered trademark of Seiko Epson Corporation.
General Notice: Other product names used herein are for identication purposes only and may be trademarks of their respective campanies.
Copyright © 1995 by SEIKO EPSON CORPORATION Nagano, Japan
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PRECAUTIONS
Precautionary notations throughout the text are categorized relative to 1) personal injury and 2) damage to equipment.
DANGER
Signals a precaution which, if ignored, could result in serious or fatal personal injury. Great caution should be exercised in performing procedures preceded by DANGER Headings.
WARNING Signals 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 PERIPHERAL DEVICES PERFORMING ANY MAINTENANCE OR REPAIR PROCEDURE. NO WORK SHOULD BE PERFORMED ON THE UNIT BY PERSONS UNFAMILIAR WITH BASIC SAFETY MEASURES AS DICTATED FOR ALL ELECTRONICS TECHNICIANS IN THEIR LINE OF WORK. WHEN PERFORMING TESTING AS DICTATED WITHIN THIS MANUAL, DO NOT CONNECT THE UNIT TO A POWER SOURCE UNTIL INSTRUCTED TO DO SO. WHEN THE POWER SUPPLY CABLE MUST BE CONNECTED, USE EXTREME CAUTION IN WORKING ON POWER SUPPLY AND OTHER ELECTRONIC COMPONENTS.
2.
3.
WARNING
1. REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON CERTIFIED REPAIR TECHNICIAN. MAKE CERTAIN THAT THE SOURCE VOLTAGE IS THE SAME AS THE RATED VOLTAGE, LISTED ON THE SERIAL NUMBER/RATING PLATE. IF THE EPSON PRODUCT HAS A PRIMARY AC RATING DIFFERENT FROM AVAILABLE POWER SOURCE, DO NOT CONNECT IT TO THE POWER SOURCE. ALWAYS VERIFY THAT THE EPSON PRODUCT HAS BEEN DISCONNECTED FROM THE POWER SOURCE BEFORE REMOVING OR REPLACING PRINTED CIRCUIT BOARDS AND/OR INDIVIDUAL CHIPS. IN ORDER TO PROTECT SENSITIVE MICROPROCESSORS AND CIRCUITRY, USE STATIC DISCHARGE EQUIPMENT, SUCH AS ANTI-STATIC WRIST STRAPS, WHEN ACCESSING INTERNAL COMPONENTS. REPLACE MALFUNCTIONING COMPONENTS ONLY WITH THOSE COMPONENTS BY THE MANUFACTURE; INTRODUCTION OF SECOND-SOURCE ICs OR OTHER NONAPPROVED COMPONENTS MAY DAMAGE THE PRODUCT AND VOID ANY APPLICABLE EPSON WARRANTY.
2.
3.
4.
5.
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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 Safety] 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 Radiation 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. Compliance 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. [Internal Laser Radiation] Maximum Radiation Power: Wave Length: 5.0 × 10-4 (W) 790 ± 20 nm
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 × 10-4 W and the wavelength is 790 ± 20 nm.
For Denmark Users;
ADVARSEL Usynlig laserstråling ved åbning, når sikkerhedsafbrydere er ude af funktion. Undgå udsættelse for stråling. Klasse 1 laser produkt der opfylder IEC825 sikkerheds kravene.
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For Finland, Sweden Users;
VAROITUS Laitteen käyttäminen muulla kuin tässä käyttöohjeessa mainitulla tavalla saattaa altistaa käyttäjän turvallisuusluokan 1 ylittävälle näkymättömälle lasersäteiylle. VARNING Om apparaten används på annat sätt än i denna bruksanvisning specificerats, kan användaren utsättas för osynlig laserstrålning, som överskrider gränsen för laser klass 1.
For Finland, Sweden Service People
VAROITUS Avattaessa ja suojalukitus ohitettaessa olet alttiina näkymättömälle lasersäteilylle. Älä katso säteeseen. VARNING Osynlig laserstrålning när denna del är öppnad och spärren är urkopplad. Betrakta ej strålen.
For Norway Users;
ADVARSEL Dersom apparatet brukes på annen måte enn spesifisert i denne bruksanvisning, kan brukeren utsettes for unsynlig laserstråling som overskrider grensen for laser klasse 1. Dette er en halvleder laser. Maksimal effeckt til laserdiode er 5.0 × 10-4 W og bølgelengde 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
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For Europe
[Label inside printer] The following laser safety label will be attached inside the printer as shown below.
For Denmark, Finland, Sweden, and Norway
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PREFACE
This manual describes functions, theory of electrical and mechanical operations, maintenance, and repair of EPL-5500. The instructions and procedures included herein are intended for the experience repair technician, and attention should be given to the precautions on the preceding page. The chapters are organized as follows:
CHAPTER 1. GENERAL DESCRIPTION
Provides a general product overview, lists specifications, and illustrates the main components of the printer.
CHAPTER 2. OPERATING PRINCIPLES
Describes the theory of printer operation.
CHAPTER 3. DISASSEMBLY AND ASSEMBLY
Includes a step-by-step guide for product disassembly and assembly.
CHAPTER 4. ADJUSTMENTS
Includes a step-by-step guide for adjustment.
CHAPTER 5. TROUBLESHOOTING
Provides Epson-approved techniques for adjustment.
CHAPTER 6. MAINTENANCE
Describes preventive maintenance techniques and lists lubricants and adhesives required to service the equipment.
APPENDIX
Describes connector pin assignments, circuit diagrams, circuit board component layout and exploded diagram.
The contents of this manual are subject to change without notice.
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REVISION SHEET
Revision Rev. A Issue Date October 06, 1995 Revision Page 1st issue Revise the whole pages of the following chapters: Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6
Rev. B
March 15, 1996
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Chapter 1
General Description
Table of Contents
1.1 FEATURES 1-1
1.2 SPECIFICATIONS 1-3 1.2.1 Basic Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 1.2.2 Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 1.2.3 Reliability Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 1.2.4 Environmental Conditions for Operating (Include Imaging Cartridge) . . . . 1-5 1.2.5 Environmental Conditions for Storage and Transportation . . . . . . . . . . . . 1-5 1.2.6 Applicable Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 1.2.7 Specifications for Consumable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 1.2.8 Physical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 1.2.9 Software Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 1.3 INTERFACE SPECIFICATIONS 1-9 1.3.1 Parallel Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 1.3.1.1 Compatibility Mode of Parallel Interface . . . . . . . . . . . . . . . . . . . . 1-9 1.3.1.2 Reverse ModeMode Signal Timing . . . . . . . . . . . . . . . . . . . . . . . 1-11 1.3.2 Serial Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15 1.3.3 Optional LocalTalk Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17 1.4 OPERATING INSTRUCTIONS 1.4.1 Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4.2 Printer Settings Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4.3 Service Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4.3.1 Heaxadecimal Dump Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4.3.2 EEPROM Initialize Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4.3.3 Factory Reset Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4.3.4 Default Setting Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4.4 Display of Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4.4.1 Status Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4.4.2 Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4.4.3 Service Call Error Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4.5 Printer Sharing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4.5.1 Port Fixed Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4.5.2 Auto Sense Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4.6 Emulation Mode Switch Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4.6.1 Emulation Switch by SPL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4.6.2 Intelligent Emulation Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4.7 Bi Resolution Improvement Technology . . . . . . . . . . . . . . . . . . . . . . . . . 1.4.8 Toner Save Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4.9 Optional Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 MAIN COMPONENTS 1.5.1 C169 MAIN-B Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5.2 PWB-E Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5.3 PWB-F Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5.4 Optical Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5.5 FUSING UNIT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5.6 Photoconductor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18 1-18 1-20 1-23 1-23 1-23 1-23 1-24 1-27 1-27 1-27 1-27 1-28 1-28 1-28 1-29 1-29 1-29 1-30 1-31 1-31 1-32 1-33 1-34 1-34 1-35 1-35 1-36
1.5.7 Developing Cartridge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-36 1.5.8 Lower Paper Cassette Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-36
List of Figures
Figure 1-1. Exterior View of the EPL-5500 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Figure 1-2. Printable Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 Figure 1-3. Compatibility Mode Signal Timing . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 Figure 1-4. Parallel Interface State Switch Diagram . . . . . . . . . . . . . . . . . . . . . 1-12 Figure 1-5. Negotiation Timing Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13 Figure 1-6. Timing Chart of Data Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13 Figure 1-7. Termination Timing Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14 Figure 1-8. Timing Chart of Interrupt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14 Figure 1-9. Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18 Figure 1-10. Port Fixed Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-28 Figure 1-11. Auto Sense Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-28 Figure 1-12. Emulation Switch by SPL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29 Figure 1-13. Intelligent Emulation Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29 Figure 1-14. Effect of RITech . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-30 Figure 1-15. RITech Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-30 Figure 1-16. Toner Save Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31 Figure 1-17. Component Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-32 Figure 1-18. C169 MAIN-B Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-33 Figure 1-19. PWB-E Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-34 Figure 1-20. PWB-F Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-34 Figure 1-21. Optical Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-35 Figure 1-22. Fusing Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-35 Figure 1-23. Photoconductor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-36 Figure 1-24. Developing Cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-36
List of Tables
Table 1-1. Options for the EPL-5500. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Table 1-2. Paper Feed Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 Table 1-3. Paper Types. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 Table 1-4. Usability of Special Papers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 Table 1-5. Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 Table 1-6. Differences between EPSON GL/2 and GL/2 in the HP LaserJet® 4 Emulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 Table 1-7. Built-in Fonts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 Table 1-8. Parallel Interface Pin Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10 Table 1-9. Parallel Interface Pin Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11 Table 1-10. Serial Interface Connector Pin Assignments . . . . . . . . . . . . . . . . . 1-15 Table 1-11. LocalTalk Connector Pin Assignments . . . . . . . . . . . . . . . . . . . . . 1-17 Table 1-12. Printer Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20 Table 1-13. Service MOde Select Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23 Table 1-14. Default Settings Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24 Table 1-15. Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27 Table 1-16. Differences in Components for the C169 MAIN-B Board . . . . . . . 1-33
Rev. A
1-iii
EPL-5500 Service Manual
General Description
1.1 FEATURES
The EPSON® EPL-5500 is non-impact page printer that combines a semi-conductor laser with electrophotographic technology. This printer is small and light, and features high-speed, high-resolution printing. Maintenance is very easy as a result of various built-in diagnostic functions. The main features are:
t
No ozone Printing speed -- 6 ppm (pages per minute) Resolution -- 600/300 dpi (dots per inch) Light weight -- about 5 kg (11 lb) Small footprint Low running cost: separation of the development/toner cartridge and photoconductor unit HP® LaserJet® 4 emulation mode 22 built-in scalable fonts (8 Agfa® and 14 TrueType® fonts) High-performance controller (the controller's CPU is a 22.5 MHz SPARKlite (MB86933H)) Bi Resolution Improvement Technology (BiRITech) refines the print quality by eliminating jagged edges from images and characters on 600 dpi and 300 dpi printing Memory Improvement Technology supported Optional EPSONScript Level 2 (PostScript® compatible) module Optional WPS (Windows Printing System) ROM SIMM module Optional I239X, ESC/P 2TM , and FX emulation ROM SIMM module EPSON Micro Gray Technology (EMGTech), which is available when using PCL and EPSONScript Level 2 mode, refines gray scale printing to be comparable to printing on a 1200-dpi printer Small and low-cost optional LocalTalkTM with serial interface module 1MB standard RAM and memory expansion available up to 32MB of RAM with the addition of optional SIMMs Bidirectional parallel interface Toner-saver mode supported A multi-user, multi-emulation mode IES (Intelligent Emulation Switch) allows switching between EPSONScript mode and another mode SPL (Shared Printer Language) enables switching of the printer mode by command
t t t t t t t t t t t t t t
t t t t t t t
Figure 1-1 shows an exterior view of the EPL-5500.
Figure 1-1. Exterior View of the EPL-5500
Rev. B 1-1
General Description
Table 1-1 lists the optional units available for the EPL-5500.
EPL-5500 Service Manual
Table 1-1. Options for the EPL-5500
Cat. No. Description Note Supports Windows Printing System Supports EPSONScript Level 2 mode (PostScript Level 2 compatible) fonts and commands (see Note 1) Supports ESC/P 2, FX, 2390/2391 emulation modes and IBM
C83218V Windows Printing System ROM SIMM EPSONScript Level 2 ROM SIMM C83219V LQ/FX/I239X ROM SIMM NLSP Bitmap 2 font ROM NLSP Scalable font ROM
C83220V -- -- C812491
Supports local NLSP bitmap fonts (see Note 2) Supports local NLSP scalable fonts (see Note 2)
250-sheet lower paper cassette for theLower paper cassette EPL-5500 (A4/B5) Developer and toner cartridge -- (see Note 3) RS-232C extension cable for C82334V Type-B I/F card box (see Note 4) (see Note 5) (see Note 5) (see Note 5) (see Note 5) (see Note 5) (see Note 5) (see Note 5) (see Note 5) (see Note 5)
S050005 Developer cartridge S051029 Photoconductor unit C82334V LocalTalkTM with serial I/F module C83614V Interface cable C82335V Type-B EX box C82307V/ 32 KB serial interface card C82308V C82310V/ 32 KB parallel interface card C82311V C82312V LocalTalk card C82313V GPIB card C82314V COAX interface card C82315V TWINAX interface card C82324V Ethernet interface card for NetWare® C82328V FAX card C82331V Multi protocol Ethernet card Notes: 1. 2. 3. 4. 5.
Requires added memory (RAM) over a total of 2 MB, including standard RAM. NLSP font ROMs do not support ESC/P 2 and FX modes. LocalTalk with serial I/F module (C82334V) cannot be used with Type-B EX box (C82335V). Type-B EX box (C82335V) cannot be used with LocalTalk with serial I/F module (C82334V) . Type-B EX box (C82335V) must be installed while using the Type-B I/F card.
1-2
Rev. B
EPL-5500 Service Manual
General Description
1.2 SPECIFICATIONS
This section provides statistical data for the EPL-5500.
1.2.1 Basic Specifications
Printing method: Resolution: Printing speed: First printing time (A4/LT): Warm-up time: Paper supply: Laser beam scanning and dry electrophotography 600/300 dpi 6 ppm (letter/A4) Less than 20 seconds (face-up output) Less than 35 seconds (at rated current and 23° C (73° F) temperature) See Table 1-2.
Table 1-2. Paper Feed Methods
Capacity Using 20 lb. (75 g/m2) Paper 150 Usage Thickness (Ream Weight)
Paper Supply
Paper Size
Standard built-in paper tray
A5, B5, A4, LT,16 to 24 lb. GLT, EXE, LGL,(60 to 90 g/m2) GLG, F4, HL Monarch, Envelopes made DL, C5, C6, of 20 to 24 lb. International B5, (75 to 90 g/m2) Commercial-10 paper Any size feedable (Note 2) A4, B5 16 to 42 lb. (60 to 157 g/m2) 16 to 24 lb. (60 to 90 g/m2)
5 to 10
Manual feed slot Lower paper cassette (optional) Notes: 1. 2.
1 250
The weight in pounds (lb) is determined by the weight of 500 sheets cut to 17 × 22 inches; 1 g/m2 = 0.2659763 lb. Paper size range: width length 3 to 8.5 inches (76 to 216 mm) 5 to 14.0 inches (127 to 356 mm) See Table 1-3.
Paper types:
Table 1-3. Paper Types
Rev. B
1-3
General Description
Standard paper Normal paper Xerox® 4024 DP paper 20 lb (75 g/m2) Regular photocopier paper Bond paper Recycled paper 16 to 24 lb (60 to 90 g/m2) Card stock (90 to 157 g/m2) Envelopes Labels Letterhead Transparency (OHP) sheets Colored paper
EPL-5500 Service Manual
Special papers
4.0 mm
Printable Area
4.0 mm
4.0 mm
4.0 mm
Figure 1-2. Printable Area
1-4
Rev. B
EPL-5500 Service Manual
Usability of special papers: See Table 1-4.
General Description
Table 1-4. Usability of Special Papers
Input Standard built-in paper tray Manual feed slot Lower paper cassette OHP P P N Envelopes P P N Labels P P N Card Stock P P N Letterhead R R P
R: Reliable feeding and good image quality. P: Possible, but better avoided. N: Not supported.
Paper feed alignment and direction: Paper ejection: Output tray capacity: Printable area (standard paper):
Center alignment for all sizes Face down 100 sheets (face down) See Figure 1-2.
Note: Noise:
The actual printable area depends on the printer mode. Less than 35 dB(A), standby Less than 47 dB(A), operating Less than 0.01 ppm No toxicity exists in organic photoconductor (OPC), toner, or plastic materials
Ozone density: Toxicity:
Rev. B
1-5
General Description
EPL-5500 Service Manual
1.2.2 Electrical Specifications Table 1-5. Electrical Requirements and Ranges
Description Rated voltage Input voltage range Rated frequency range Input frequency range Power consumption Power consumption while in standby mode Less than 500 W Less than 15 W (without option) 100 V Version 100 120 VAC 90 132 VAC 50 60 Hz 47 63 Hz Less than 600 W 200 V Version 220 240 VAC 198 264 VAC
1.2.3 Reliability Specifications
MPBF (Mean Prints Between Failures): Over 25,000 sheets Note: MPBF indicates average number of pages printed before occurrence of problem requiring replacement or service. 3000 power on hours (POH) 1 out of 2,000 sheets or less (excluding multiple-sheet feeding) 1 out of 2,000 sheets or less (excluding multiple-sheet feeding) 1 out of 500 sheets or less 30 mm (1.2 inches) or less 1 out of 1,000 sheets 30 minutes or less 5 years or 180,000 sheets
MTBF (Mean Time Between Failures): Jam rate: Feed failure: Multiple paper feeds: Paper curl height: Leading edge bending (1 cm or more): MTTR (Mean Time To Repair): Durability:
1.2.4 Environmental Conditions for Operation (Including Imaging Cartridge)
Temperature: Humidity: Altitude: Levelness: Illuminance: Surrounding space: 10 to 35° C (50 to 95° F) 15 to 85% RH 2,500 m (8,200 feet) or lower 1° 3,000 lux or less (Must not be exposed to direct sunlight.) Printer should have at least 100 mm of clearance on its sides and rear.
1.2.5 Environmental Conditions for Storage and Transportation
Temperature: Humidity: Drop test: Vibration: 0 to 35° C (32 to 95° F) 30 to 85% RH Clear to JIS Z0200-1987 Level 1 Vibration frequency Acceleration Acceleration direction More than 61.3 KPa 18 months (following date of manufacture) 5 to 100 Hz and 100 to 5 Hz 1G 3 direction
Resistance to atmospheric pressure: Storage life:
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1.2.6 Applicable Standards
Safety Standards
120 VAC model: 220/240 VAC model: UL 1950, CSA 22.2 No. 950 Deviation 3 EN 60950 (IEC950), NEMKO (IEC950), SETI (IEC950), SEMKO (IEC950), DEMKO (IEC950)
Safety Regulations (Laser Radiation)
120 VAC model: 220/240 VAC model: FDA (NCDRH) Class 1 VDE 0837 (Laser Class 1) (IEC825), SETI (IEC825), SEMKO (IEC825), DEMKO (IEC825)
EMI
120 VAC model: 220/240 VAC model: FCC Part 15 Subpart B Class B, DOC Class B Vfg 243 (VDE 0878 Part 3,30) EN55022 Class B (CISPR Pub.22 Class B) CE marking, EMC
Others
Toner: OPC: Ozone: Materials: No effect on human health (OSHA-TSCA, EINECS) No effect on human health (OSHA) Less than 0.01 mmp other UL478 (5th edition) SWISS environmental law (must contain no CdS)
1.2.7 Specifications for Consumables
Life: Note: Developer and toner cartridge: 3,000 pages Photoconductor unit: 20,000 pages In continuous printing mode with A4/letter paper at a 5% image ratio (black/white ratio). The life varies, depending on the printing mode (continuous or intermittent) and/or the image ratio.
Environmental Conditions for Storage and Transportation
Temperature: Humidity: Drop test: Vibration: Resistance to atmospheric pressure: Storage term: 0 to 35° C (32 to 95° F) 30 to 85% RH Height 76 cm (30.4 inches) Same as printer More than 74 Kpa 18 months (following date of manufacture)
1.2.8 Physical Specifications
Dimensions (Width × Depth × Height): Printer: Weight: 352 × 264 × 299 mm (13.9 × 10.4 × 11.8 inches) Approx. 5 kg (11 lb), with consumables, excluding all options
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1.2.9 Software Specifications
Built-in modes: Note:
HP LaserJet 4 emulation (PCL® 5e) EPSON GL/2 mode (GL-like mode) EPSON GL/2 mode is similar to the GL/2 mode included in the HP LaserJet 4 emulation. Table 1-6 shows the differences between EPSON GL/2 mode and the LJ4 GL/2 mode. While in EPSON GL/2 mode, the operator can enter GL/2 mode without sending the ESC %#B (Enter GL/2 mode) command. If the operator's application software cannot send the ESC %# B command, then use this mode.
Table 1-6. Differences between EPSON GL/2 and GL/2 in the HP LaserJet 4 Emulation
EPSON GL/2 Mode PCL mode Paper eject Auto eject Reduced printing Switch to PCL (ESC %#A) Reset (ESC E) Not available Supports PG, AF commands SelecType setting SelecType setting Not supported GL/2 for HP LaserJet 4 Emulation Mode Initial mode Supported in PCL Not available Available in PCL Supported
PJL, EJL, and ES Advance full page (PG, AF) The EPL-5500 GL/2 mode features all the commands of the LJ4-GL/2 mode, plus a few Note: additional commands. The GL/2 mode emulates some of the HP-GL® plotter (HP 7475A, etc.) commands. If the application software uses unsupported commands for the GL/2 mode, print cannot be assured. Optional modes: EPSONScript Level 2 (PostScript Level 2 emulation) mode FX (FX-870/1170, LX-100) emulation mode ESC/P 2 (Stylus 800/1000) emulation mode WPS (Windows Printing System) mode Auxiliary software: Hex dump Status sheet Font sample Built-in fonts: See Table 1-7.
Ejects paper and then initializes Ejects paper, switches to PCL, and then initializes Supported Supported Supported Not supported
Table 1-7. Built-in Fonts
Resident Fonts Bitmap fonts Line Printer16.66 cpi(Portrait) Scalable fonts DutchTM 801Roman SWC Dutch 801Bold SWC Dutch 801Italic SWC Dutch 801Bold Italic SWC SwissTM 742SWC Swiss 742Bold SWC Swiss 742Medium Italic SWC S: Supported, NS: Not Supported Applicable Mode HP LJ4, GL/2 S S S S S S S S
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Table 1-7. Built-in Fonts (Continued)
Resident Fonts Scalable fonts Swiss 742Bold Italic SWC Swiss 721Roman SWM Swiss 721Bold SWM Swiss 721Oblique SWM Swiss 721Bold Oblique SWM Dutch 801Roman SWM Dutch 801Bold SWM Dutch 801Italic SWM Dutch 801Bold Italic SWM Symbol SetSWA More WingBatsSWM CourierSWC CourierBold SWC CourierItalic SWC CourierBold Italic SWC S: Supported, NS: Not Supported Applicable Mode HP LJ4 GL/2 S S S S S S S S S S S S S S S
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1.3 INTERFACE SPECIFICATIONS
The EPL-5500 is equipped with the following external interfaces: t Parallel interface t Optional LocalTalk/serial interface t Optional Type B interface with Type-B EX box
1.3.1 Parallel Interface
The parallel interface has the following two modes: t Compatibility mode (same as parallel interface for EPSON's current page printer) t Reverse mode
1.3.1.1 Parallel Interface Compatibility Mode
System: Handshaking: Connector type: Applicable plug: Transfer speed: Signal timing: Signal description: STROBE synchronization, 8-bit parallel data transfer BUSY and ACKNLG signals P90-25027-1 (Amphenol) receptacle 57-30360 (Amphenol or equivalent) Approximately 400,000 bytes/second (max.) See Figure 1-3. See Table 1-8.
0.5 µ s 0.5 µ s (minimum) (minimum)
DATA 1-8 VALID VALID
0.5 µ s (minimum) STR OBE 0.5 µ s (maximum)
BU SY
0s 0.5 or 5 µ s (min.) (minimum)
AC KN LG
1 or 10 µ s (typical)
Figure 1-3. Compatibility Mode Signal Timing
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Table 1-8. Parallel Interface Pin Assignments
Pin No. 1 Signal Name STROBE I/O IN Description STROBE is a strobe pulse used to read data from the host computer. The pulse width must be more than 0.5 µsec. Normally it is HIGH, and data is latched at the trailing edge of this signal. DATA 1 to 8 are parallel data bits. When the signal is HIGH, the data bit is 1, and when it is LOW, the data bit is 0. The most significant bit (MSB) is DATA 8. The signal state must be maintained for 0.5 µsec. on either side of the STROBE signal active edge.
DATA 1-8 2-9 IN
ACKNLG 10
ACKNLG is an acknowledge pulse with an approximate width OUT of 1 or 10 µsec. This signal goes LOW when the data reception is completed, which indicates that the printer can accept new data. Timing with the BUSY signal is specified through SelecType. OUT The BUSY signal informs the host computer of the printer state. When the signal is HIGH, the printer cannot accept data. The PE signal indicates paper empty for the standard tray OUT selected through SelecType or command, or for the optional paper cassette. Paper empty is indicated by HIGH. OUT Used in reverse mode. IN -- -- -- -- -- IN Not used. Not used. Logic ground level. Connected to the printer chassis. The printer chassis GND and the signal GND are connected to each other. Not connected. Ground level for the twisted pair return signal. The STROBE signal is ignored when this signal is LOW.
11
BUSY PE
12 13 14 15 16 17 18 SLCT AUTO-FEED NC GND CHASSIS GND NC
19-30 GND 31 INIT ERROR 32
This level goes LOW when the printer is: · Out of paper OUT · Paper jam · In the error state · Off line -- -- -- -- Same as for pins 19 to 30. Not used. Pulled up to +5 V through 1.0K-ohm resistance. Used in reverse mode.
33 34 35 36
GND NC +5 SLCT IN
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1.3.1.2 Reverse Mode
Reverse mode for the EPL-5500 supports the IEEE-P1284 nibble mode. This printer can run in reverse mode, in which the printer can inform the computer of its status with EJL and PJL commands. System: IEEE-P1284 nibble mode Connector type: P90-25027-1 (Amphenol) receptacle Applicable plug: 57-30360 (Amphenol or equivalent) Signal description: See Table 1-9.
Table 1-9. Parallel Interface Pin Assignment
Pin No. 1 Signal Name STROBE DATA 1-8 2-9 IN I/O IN Description HostClk: This signal is a strobe pulse used to read extension request values from the host computer during negotiation. These signals are data bits of extension request values received during negotiation. This printer supports following values: 0000 0100: Request Device ID (sent in nibble mode) 0000 0000: Request nibble mode
10 11 12 13
ACKNLG BUSY PE
OUT PtrClk: Printer sends clock data. OUT PtrBusy: Printer sends data bits 3 and 7 during data transfer to host computer. OUT AckDataReq: Printer sends data bits 2 and 6 during data transfer to host computer. OUT Xflag: Printer sends data bits 2 and 6 during data transfer to host computer. IN HostBusy: This signal informs the printer of the host computer's state. When the signal is HIGH, the host computer cannot accept data. Not used. Logic ground level. Connected to the printer chassis. The printer chassis GND and the signal GND are connected to each other. Not connected. Ground level for the twisted pair return signal. nInit: Fixed at HIGH level.
SLCT AUTO-FEED
14 15 16 17 18 NC GND CHASSIS GND NC
-- -- -- -- -- IN
19-30 GND 31 32 33 34 35 36 INIT ERROR GND NC +5 SLCT IN
OUT nDataAvail: Printer sending data bits 0 and 4 during data transfer to host computer. -- -- -- IN Same as for pins 19 to 30. Not used. Pulled up to +5 V through 1.0K-ohm resistance. 1284Active: If this signal is set to HIGH, this printer is actively in P1284 (reverse mode).
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Compatibility M ode S TROB E
ACK and BUSY
Forward D ata Transfer
Forward Idle
Terminate
SLCT IN=HIGH
Failed Negotiation
SLCT I N=LOW
ERR=HI GH No data sent
Negotiation
E RR=L O W Sending data
E RR = L O W
Sending data Host Busy Data Not Available A UT O FE ED=L OW Request to send data Host Busy Dat a Available
ERR=HI GH No data sent
Reverse Dat a Transfer
A UT O FEED=LOW
A UT O FEED=HIG H
Reverse Idle
ERR= LO W
Interrupt Ho st
Figure 1-4. Parallel Interface State Switch Diagram
Figure 1-4 shows the switch diagram for the parallel interface state.
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Figure 1-5 shows the negotiation timing chart.
DATA SEL-IN STROBE AUTO-FEED ACKNLG BUSY PE SLCT ERROR Current Peripheral Status Peripheral Busy Status Current Peripheral Status Note1 Note 2 Note1 00h or 04h
General Description
Compatibility
Negotiation
HB DA or HB DNA (Note 3)
Idle or Transfer
Figure 1-5. Negotiation Timing Chart
Notes: 1. This signal is set to HIGH when no data is being sent. This signal is set to LOW during sending of data. 2. This signal is set to HIGH if the extension request value was 04h. 3. HB DA: Host Busy Data is Available HB DNA: Host Busy Data is Not Available Figure 1-6 shows the data transfer timing chart. Notes:
DATA SEL-IN STROBE AUTO-FEED ACKNLG BUSY PE SLCT ERROR Peripheral Busy Status Bit 3 Bit 2 Bit 1 Bit 0 Bit 7 Bit 6 Bit 5 Bit 4 Peripheral Busy Status Note 1 Note 2 Note 1
HB DA
Negotiation HB DA or HB DNA (Note 3)
Idle or Transfer
Figure 1-6. Timing Chart for Data Transfer
1. 2. 3. This signal is set to HIGH when no data is being sent. This signal is set to LOW during sending of data. This signal is set to HIGH, if extension request value was 04h. HB DA: Host Busy Data is Available HB DNA: Host Busy Data is Not Available
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Figure 1-7 shows the timing chart for termination.
DATA SEL-IN STROBE AUTO-FEED ACKNLG BUSY PE SLCT ERROR Peripheral Busy Status Note 1 Note 2 Note 1 Note 3
EPL-5500 Service Manual
Peripheral Busy Status Current Peripheral Status
Current Peripheral Status
HB DNA, Idle, or HB DA
Termination
Compatibility
Figure 1-7. Termination Timing Chart
Notes: 1. The signal is HIGH when HB DNA. The signal is LOW when HB DA. 2. The signal is set to HIGH, if the extension request value was 04h. 3. Idle = LOW. Figure 1-8 shows the timing chart for interrupts.
DATA SEL-IN STROBE AUTO-FEED ACKNLG BUSY PE SLCT ERROR Note 1 Peripheral Busy Status
Reverse Idle
Interrupt
HB DA
Transfer
Figure 1-8. Timing Chart for Interrupts
Note: The signal is set to HIGH, if the extension request value was 04h.
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1.3.2 Serial Interface
This printer can use the optional LocalTalk/serial interface module. Type: RS-232C/current loop Transfer system: Full duplex Synchronization: Asynchronous start-stop system Start-bit: 1 bit Stop-bit: 1 or 2 bits Data length: 7 bits or 8 bits Parity: Odd, even, or none Protocol: X-ON/X-OFF (can be combined with DTR control) DTR control (can be combined with X-ON/X-OFF) Transfer speed: 300, 600, 1200, 2400, 4800, 9600, 19200, 38400, or 57600 bps Error: Overrun error: Processed as missing data and replaced by "*" Parity error: Replaced by "*" Framing error: Replaced by "*" Breaking character: Ignored Signal description: See Table 1-10.
Table 1-10. Serial Interface Pin Assignments
Pin No. 1 Signal Name CHASSIS-GND I/O -- Description Connected to the printer chassis. The printer chassis GND and signal GND are connected to each other.
TXD 2
Serial ASCII data output by the printer. It maintains the OUT "MARK" state (LOW level) between transmitted character codes. Logic 0 is at HIGH level (SPACE) and logic 1 is at LOW level (MARK). IN IN -- Serial ASCII data input to the printer. It maintains "MARK" state (LOW level) between received character codes. Always ignored. Ground.
3 5 7
RXD CTS SIGNAL-GND TTY-TXD
17
Current loop signal: HIGH impedance (SPACE) between pins 17 and 24 or X-ON signal sent across pins 17 and 24 indicates OUT that the printer is ready to accept data; LOW impedance (MARK) or X-OFF signal being sent indicates that the printer is busy. Signal output by printer. When the DTR signal is HIGH, the printer can receive the RXD signal. The SelecType settings do not specify DTR control, the signal level is HIGH while printer OUT power is on. When the SelecType setting is used for DTR control, DTR goes LOW in case of any error conditions. The data (RXD) from host computer must be stopped within 128 characters after DTR goes LOW. -- -- IN Current loop signal: Current return for pin 17 Current loop signal: Input data current loop Current loop signal: Current return for pin 25
DTR 20
23 24 25 Note :
TTY-RXD Return TTY-TXD Return TTY-RXD
The DTR state can be selected through printer settings.
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Handshaking
When the vacant area for data in the input buffer drops to 256 bytes, the printer outputs an X-OFF code or sets the DTR signal level to LOW, indicating that the printer cannot receive more data. Once the vacant area for data in the buffer recovers to 512 bytes, the printer outputs an X-ON code or sets the DTR flag to HIGH, indicating that the printer is again ready to receive data.
Protocol
There are two types of protocols, as listed below, and each of them can be designated by SelecType independently. t DTR/DSR protocol SelecType is used to execute the DTR/DSR control protocol. The DTR signal is set to HIGH when the printer is ready to receive data, and to LOW when conditions indicate an error or that the receiving buffer is full. When the error is cleared and the printer returns to on-line mode, the signal returns to HIGH. When SelecType is used to set the DTR control OFF, DTR is always set to HIGH. The printer transmits TXD only when DSR is at the HIGH level (DSR is always considered HIGH when the SelecType setting for DSR is OFF). X-ON/X-OFF transmission is independent of the DSR state. t X-ON/X-OFF (DC1/DC3) protocol SelecType is used to execute the X-ON/X-OFF protocol. The X-OFF (DC3) code is output if status indicates an error, and the printer warns the host to stop data transmission within 256 characters. No further X-OFF codes are sent in response to additional data received from the host after the X-OFF code has been sent once. The X-ON (DC1) code is output after all conditions given in the error are cleared. When the remaining capacity of the receive buffer reaches 512 characters, X-OFF (DC3) is output once. It is sent only once, even if there are multiple errors. The printer goes on line automatically at power on, and outputs an X-ON code. Transmission of X-ON/X-OFF codes can be defined by SelecType.
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1.3.3 Optional LocalTalk Interface
This printer can use the optional LocalTalk/ serial interface module. Type: LocalTalk Signal level: Same as RS-422 signal level Protocol: X-ON/X-OFF (cannot be combined with DTR control) DTR control (cannot be combined with X-ON/X-OFF) Transfer speed: 230.4K bps Signal description: See Table 1-11.
Table 1-11. LocalTalk Interface Pin Assignments
Pin No. 1 2 Signal Name DTR CTS TXD3 Description Signal output by the printer. When the DTR signal is HIGH, the OUT printer can receive the RXD signal. IN The printer transmits the data through TXD while CTS is HIGH. I/O
Serial ASCII data output from the printer. HIGH level; when SD+ voltage is higher than the SD- voltage. OUT LOW level; when SD+ voltage is less than the SD- voltage. Logic 0 is SPACE and logic 1 is MARK. The state must be maintained between transmitted character codes. -- Ground. Serial ASCII data input from computer. HIGH level; when RD+ voltage is higher than RD- voltage. LOW level; when RD+ voltage is less than RD- voltage. Logic 0 is "SPACE" and logic 1 is "MARK" state must be maintained between transmitted character codes.
4
GND RXD-
5
IN
6 7 8
TXD+ NC RXD+
OUT Refer to TXD-. -- IN No connect. Refer to RXD-.
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1.4 OPERATING INSTRUCTIONS
This section describes functions performed through the control panel, such as printing a status sheet, hexadecimal dump, and printer settings functions.
1.4.1 Control Panel
The printer control panel gives you easy control over most common printer operations. The panel consists of indicator lights and a button.
LED (Yellow) LED (Red)
Button
Figure 1-9. Control Panel
Indicator lights
t Yellow light ON: Communication with the host is possible. Fast flashing: Receiving data or warming up. Slow flashing: Received data is stored in the printer but has not been printed. OFF: Printer is power off. t Red light ON: Paper jam or cover open. Fast flashing: Feed jam, paper empty. Slow flashing: One of these errors: SOFT ERROR, PRINT OVERRUN, MEMORY OVERFLOW, CHECK PAPER SIZE, IMAGE OPTIMUM OFF: No error condition.
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Functions of Pressing the Button
t While the Red light flashes slowly:
Clears an error. Hold down the button until the yellow and Red lights both go on after release. The printer prints a status sheet indicating the error type. t While the Red light flashes fast: Function of button Prints any of the following page. - Feed jam or paper empty page - Manual feed page Operation Load the paper or clear the jam, and then hold down the button until the yellow and Red lights go on, then release to continue printing. t While yellow light is flashing slowly (except in EPSONScript mode): Function of button Prints out data in the printer's memory. Operation Hold down the button until the yellow and red lights go on, then release the button to continue printing. t While the yellow light is on (except in WPS mode): Function of button Prints a status sheet. Operation Hold down the button until the yellow and red lights go on, then release the button to continue printing. The yellow light flash while the status sheet is being printed. t Reset (always effective except during warm up or status sheet printing): Function of button Clears current port. Operation Hold down the button until the yellow and red lights go on, and when these lights start flashing alternately, release the button. t Warm boot (always effective except during warm up or status sheet printing): Function of button Warm boot (same as power on reset, except for engine initialization). Operation Hold down the button until the yellow and red lights start flashing at the same time, then release the button.
Function of button Operation
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1.4.2 Printer Settings Functions
The printer settings function from the Remote Control Panel (software) lets the user control most of the printer's functions, such as printing test pages, selecting a paper size, and changing the printer's configuration. Table 1-12 shows the printer settings options.
Table 1-12. Printer Settings
Menu PRINTING COPIES PAGE SIZE ORIENTATION MANUAL FEED RITech TONER SAVE LJ4 FONT SRC FONT NUMBER PITCH HEIGHT SYMSET Item 1 to 999 A4, A5, B5, LT, HLT, LGL, GLT, GLG, EXE, F4, MON, C10, DL, C5, IB5, CTM PORT, LAND OFF, ON OFF, LIGHT, MEDIUM, DARK OFF, ON RESIDENT, SIMM, DOWNLOAD 0 to (available) 0.44 to 99.99 CPI (0.01 steps) 4.00 to 999.75 PT. (0.25 steps) Roman-8, ECM94-1, 8859-2 ISO, 8859-2 ISO, IBM-US, IBM-DN, PcMultiling, PcE.Europe, PcTk437, WiAnsi, WiE.Europe, WiTurkish, DeskTop, PsText, VeInternati, VeUS, MsPublishin, Math-8, PsMath, VeMath, PiFont, Legal, UK, ANSI ASCII, Swedis2, Italian, Spanish, German, Norweg1, French2, Windows 5 to 128 lines 0 to 3199 0 to 3199 OFF, ON OFF, ON 1 to 5 Courier, Roman, Sans serif, Roman-T, Sans-H, Script 10 CPI, 12 CPI, 15 CPI, Prop OFF, ON 0.40 to 1.50 Inch (0.05 steps) 1 to (available) lines Pc USA, Italic, PcMultilin, PcPortuguese, PcCanFrenc, PcNordic, PcTurk2, Pc.E.Europe, BpBRASCII, BpAbicomp USA, France, Germany, UK, Denmak, Sweden, Italy, Spain1, Japan, Norway, Denmark2, Spain2, LatinAmeric, Korea, Legal Available Options
FORM SRC SYMSET* DEST SYMSET* PS* ERR SHEET MicroGray PROTECT LEVEL ESCP2* Font Pitch Condensed T-Margin Text CG Table
Country
* With option
Table 1-12. Printer Settings (Continued)
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ESCP2 * (Continued) Auto CR Auto LF Bit Image Zero Char FX* Font Pitch Condensed T-Margin Text CG Table ON, OFF OFF, ON Dark, Light, BarCode 0,
General Description
Courier, Prestige, Roman, Sans serif, Script 10 CPI, 12 CPI, 15 CPI, Prop OFF, ON 0.40 to 1.50 Inch (0.05 steps) 1 to (available) lines Pc USA, Italic, PcMultilin, PcPortuguese, PcCanFrenc, PcNordic, PcTurk2, Pc.E.Europe, BpBRASCII, BpAbicomp USA, France, Germany, UK, Denmak, Sweden, Italy, Spain1, Japan, Norway, Denmark2, Spain2, LatinAmerica ON, OFF OFF, ON Dark, Light, BarCode 0, Courier, Prestige, Gothic, Orator Script, Presentor 10 CPI, 12 CPI, 15 CPI, 17 CPI, 20 CPI, 24 CPI, Prop 437, 850, 860, 863, 865 0.40 to 1.50 Inch (0.05 steps) 1 to (available) lines OFF, ON OFF, ON OFF, ON Dark, Light, BarCode 0,
Country
Auto CR Auto LF Bit Image Zero Char I239X* Font Pitch Code Page T-Margin Text Auto CR Auto LF Alt.Graphics Bit Image Zero Char * With option
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Table 1-12. Printer Settings (Continued)
Menu JOB Item PAGE PROTECT RESOLUTION IMAGE OPTIMUM TIMEOUT EMULATION PARALLEL SERIAL* L/T* AUX* CONFIG AUTO CONT STANDBY DENSITY INTERFACE TOP OFFSET LEFT OFFSET PAGE COUNT PARALLEL SPEED BI-D SERIAL WORD LENGTH BAUD RATE PARITY STOP BIT DTR XON/XOFF TEST STATUS SHEET PS STATUS SHEET* PS FONT SAMPLE* PS FACT SHEET* EXT PRINTER INFO * With option AUTO, ON 600, 300 AUTO, OFF, ON 5 to 300 LJ4, ESCP2*, FX*, I239X*, PS*, GL2, AUTO* LJ4, ESCP2*, FX*, I239X*, PS*, GL2, AUTO* LJ4, ESCP2*, FX*, I239X*, PS*, GL2, AUTO* LJ4, ESCP2*, FX*, I239X*, PS*, GL2, AUTO* OFF, ON ENABLE, DISABLE 3, 4, 5, 1, 2 AUTO, PARALLEL, SERIAL*, L/T*, AUX* 0 to 99 0 to 99 0 to 262143 FAST, LOW ON, OFF 8, 7 9600, 19200, 38400, 57600, 300, 600, 1200, 2400, 4800 NONE, EVEN, ODD 1, 2 ON, OFF ON, OFF -- -- -- -- -- Available Options
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1.4.3 Service Mode
This printer has the following four service modes: t Hexadecimal dump mode t EEPROM format mode t Factory reset mode t Default setting mode Each service mode can be activatted selectively, by turning the printer on while hold down the button and release it at the corresponding timing shown in table below.
Table 1-13. Service Mode Select Timing
Order 1 2 3 4 5 6 Pattern Pattern 0-0 Pattern 0-1 Pattern 1 Pattern 2 Pattern 3 Pattern 4 LED (Yellow) ON OFF ON OFF ON OFF LED (Red) ON OFF OFF ON OFF OFF NA NA Hexadecimal dump mode EEPROM Initialize mode Factory reset mode Default setting mode *1 Mode
*1: Can be performed by the user.
1.4.3.1 Hexadecimal Dump Mode
Hexadecimal dump mode is a useful tool in troubleshooting data control problems. To enter hexadecimal dump mode, release the button at the mode select timing "Pattern-1". To quit the hexadecimal dump mode, turn off the printer or perform the warm-boot operation.
1.4.3.2 EEPROM Initialize Mode
EEPROM initialize operations are required only when the main board or EEPROM is replaced and these operations are specified in the accompanying documentation. This mode resets all user settings to the factory default settings and clears the printer status information (page counter and jam counter). To perform EEPROM initialize mode, release the button at the mode select timing "Pattern-2" and press the bottun again within 2 seconds from the release. The LED lights flashes alternately during the initialization. If the button is not pressed within 2 seconds after release, the printer enters nomal state without initialize operation.
1.4.3.3 Factory Reset Mode
The factory reset mode resets the printer settings to the factory default settings (the page counter and jam counter are not cleared). To enter factory reset mode, release the button at the mode select timing "Pattern-3" and press the button again within 2 seconds after release. The LED lights flashes alternately during the reset operation. If the button is not pressed within 2 seconds after release, the printer enters the nomal state without reset operation.
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1.4.3.4 Default Settings
The default settings function is used to enter printer settings. The procedure for entering default settings is: 1. To enter the default settings mode, turn on the printer while holding down the button until yellow and red lights turn off and on and off. 2. Press the button the number of times for the 1st code, while the yellow light is flashing. 3. Press the button the number of times for the 2nd code, while the red light is flashing. 4. Press the button the number of times for the 3rd code, while all lights flash. 5. If you need end the default settings mode, return step 2 and input the "111" code. If you need set the other settings, return to step 2. Thable 1-14 shows default settings codes.
Table 1-14. Default Settings Codes
Menu End of default settings mode PARALLEL SPEED Bi-D SERIAL* WORD LENGTH BAUD RATE FAST SLOW ON OFF 8 7 9600 19200 38400 27600 300 600 1200 2400 4800 PARITY NONE EVEN ODD STOP BIT DTR XON/XOFF * With option Table 1-14. Default Settings Code (Continued) Menu Item Available Options Default Settings Codes 1st 2nd 3rd Code Code Code Rev. B 1 2 ON OFF ON OFF Item Available Options Default Settings Codes 1st 2nd 3rd Code Code Code 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 3 3 3 3 3 4 4 4 4 4 5 5 5 5 5 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5
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EMULATION PARALLEL LJ4 ESCP2* FX* I239X* PS* GL2 AUTO* SERIAL* LT* AUX* SERIAL* LT* AUX* SERIAL* LT* AUX* SERIAL* LT* AUX* SERIAL* LT* AUX* SERIAL* LT* AUX* SERIAL* LT* AUX* * With option AUTO* GL/2 PS* I239X* FX* ESC/P2* LJ4
General Description
2 2 2 2 2 2 2 2 1 1 1 1 1 2 2 3 1 2 3 4 5 1 2 2
2
3
3
2
3
4
2
3
5
2
4
1
2
4
2
2
4
3
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Table 1-14. Default Settings Code (Continued)
Menu ESC/P2* / FX* CG Table Item Available Options PcUSA Italic PcMultilin PcPortugue PcCanFrenc PcNordic PcTurkish PcE.Europe BpBRASCII BpAbicomp STATUS SHEET LANGUAGE ENGLISH FRENCH GERMAN ITALIAN SPANISH PRINTING PAGE SIZE A4 LT LGL CTM ORIENTATION MANUAL FEED TONER SAVER JOB CONFIG RESOLUTION AUTO CONT STANDBY INTERFACE PORT LAND OFF ON OFF ON 600 300 OFF ON ENABLE DISABLE AUTO PARALLEL SERIAL LT AUX * With option Deafult Settings Codes 1st 2nd 3rd Code Code Code 2 5 3 2 2 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 5 5 1 1 1 1 1 2 2 2 2 2 3 3 5 5 5 5 5 1 1 1 1 1 2 2 2 2 2 3 3 3 3 3 4 4 5 1 2 3 4 5 1 2 3 4 5 1 2 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1
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General Description
1.4.4 Display of Messages
This printer indicates three types of messages with the LED lights or status sheet: status messages, error messages, and the service call error message.
1.4.4.1 Status Messages 1.4.4.2 Error Messages
The LED lights normally indicate the printer's status. (Refer to Section 1.4.1.) If any of the following errors occurs, it will be printed on the status sheet (Refer to Section 1.4.2.). Clear the error immediately using the measures shown in the following table.
Table 1-15. Error Messages
Message SOFT ERROR PAPER JAM PRINTER OPEN MANUAL FEED PAPER SET Status Measures Printer detected a CPU error or soft-- error. (Refer to Chapter 5.) A paper jam has occurred. Open the cover and remove the jammed paper. Then close the cover. Cover is open. Close the cover. Select manual feed and beginInsert paper and press button. printing data. No paper is left in either the Load paper in paper tray or optional standard tray or the optionalcassette and press button. cassette. Engine speed faster than print imagePress the button. processing. Data has filled the buffer. Confirm and press the button. And add optional SIMM. The paper size in the tray is differentChange the paper and print again. from the paper size chosen. The printer uses a lower printErase downloaded data or add a quality. SIMM.
PRINT OVERRUN MEM OVERFLOW CHECK PAPER SIZE IMAGE OPTIMUM
1.4.4.3 Service Call Error Message
The LED lights flash randomly, when the printer detects a service call error. (Refer to Chapter 5.).
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1.4.5 Printer Sharing
This section describes printer sharing. This printer has two methods of printer sharing, port fixed mode and auto sense mode. These modes are selected by "INTERFACE" in the printer settings menu.
1.4.5.1 Port Fixed Mode
When the printer is in port fixed mode, only one interface port is active. Data from other ports is ignored.
1.4.5.2 Auto Sense Mode
M ode Ass ignment HP m ode ESC/ P2 m ode User 1 Par allel F X m ode GL2 m ode EPSONScr ipt m od e
HP m o d e
Switched by printer settings Input buffer Memory
M ode Ass ignment L/T or Serial or AUX
ESC/ P2 m ode User 2 F X m ode GL2 m ode EPSONScr ipt m od e
Figure 1-10. Port Fixed Mode
It is possible to allocate each mode to parallel, serial, L/T, and AUX. The entire memory will be allocated to the channels that are used. The interface that receives the data first will print first.
M ode Ass ignment
HP m ode ESC/ P2 m ode
User 1
Par allel
F X m ode GL2 m ode EPSONScr ipt m od e
HP m od e
Input buffer
Auto Sense
M ode Ass ignment Serial or L/T or AUX
Memory
ESC/ P2 m ode User 2 F X m ode GL2 m ode EPSONScr ipt m od e Input buffer
Figure 1-11. Auto Sense Mode
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General Description
1.4.6 Emulation Mode Switch Function
This section describes the emulation mode switch function.
1.4.6.1 Emulation Switch by SPL
The two types of emulation switch function described below are available on this printer. Together they are referred to as SPL (Shared Printer Language).
EJL: EPSON Job Language
This is EPSON's original language system. It is used to skip among various destinations, as shown in Figure 1-12.
PJL: Printer Job Language
This is HP's original language, which is available with LaserJet 4 printer. It is used to skip among various destinations, as shown in Figure 1-12. The precise specifications for this language are based on HP LaserJet 4. The figure below shows three types of mode switching. Neither EJL nor PJL switches the mode directly. They first exit the current mode and return to EJL or PJL. Then they enter another mode.
1.4.6.2 Intelligent Emulation Switch
LJ 4 EJL FX
EPSONScript
PJL EPSON GL/2
ESC/P 2
Figure 1-12. Emulation Switch by SPL
Intelligent Emulation Switch (IES) automatically switches emulation mode, depending on the data sent from the host computer through one of the interface channels. It is able to switch between EPSONScript and other modes as shown in the figure below.
1.4.7 Bi Resolution Improvement Technology
LJ4 ESC/P 2
EPSONScript
FX
EPSON GL/2
Figure 1-13. Intelligent Emulation Switch
The EPL-5500 printer has BiRITech (Bi Resolution Improvement Technology), which is designed to improve print quality at 600 dpi and 300 dpi. By this method, the dot map data extracted from the image data is reassembled to improve print data. Rev. B 1-29
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EPL-5500 Service Manual
The main improvement of this technique is in eliminating "jaggies" in diagonal lines. It is most effective when the dot map data fits the development characteristics of the printer mechanism well. It is therefore necessary to set appropriate values in printer settings. Note: BiRITech is not as effective for printing a mesh pattern or gray scale. In such cases, BiRITech must be set to OFF. (The default setting is MEDIUM.) Since the BiRITech effect depends on the toner condition, adjusted it when the imaging cartridge is replaced or after the imaging cartridge is used for a long time.
1 inch
1 1 2 3
4 5
2
3
4
600
1 inch
6
7
R
8
600
(When 600 DPI printing)
Figure 1-14. Effect of BiRITech
The following settings are available in printer settings for RITech: DARK, MEDIUM, LIGHT, OFF. The status sheet has the following RITech test image. When the toner density of area A is almost the same as that of area B (as shown in the figure below), the RITech setting is at its optimum setting. In other words, the optimum setting is achieved when it is difficult to distinguish the shape of area A from that of B.
A B
Figure 1-15. RITech Adjustment
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General Description
1.4.8 Toner Save Mode
The Toner Save Mode uses about 50% less toner than normal. The printer saves toner by substiuting a gray shade for the black inside of characters. the outlines of the characters are still printed in full back.
1.4.9 Optional Memory
U pper E dge
Left Edge
Figure 1-16. Toner save Mode
If you have difficulty printing complex, graphics-intensive pages or if you regularly use downloaded fonts, you may need to install one of the optional SIMM sets on this printer's controller board. The printer's controller board comes with 1MB of RAM installed. By installing additional SIMMs, you can increase the printer's memory to a total of 32MB, including the resident memory. EPSON supplies several types of memory option (SIMMs). Other SIMMs can be purchased from other vendors. Be sure the SIMM meets the requirements listed below. t 72-pin type t Capacity is one of the following: 1, 2, 4, 8, 16, 32MB t Access speed is less than 70 ns. t Within the following dimensional size 36 mm (height) × 108 mm (width) × 10 mm (depth)
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1.5 MAIN COMPONENTS
To simplify maintenance and repair, the main components of the EPL-5500 have been designed for easy removal and replacement. The main components are: t C169 MAIN-B Board Main board t PWB-E Board Power supply circuit board t PWB-F Board High-voltage supply circuit board t Optical Unit Printhead unit t Fusing Unit t Photoconductor unit t Developer cartridge t Housing
C 1 69 M AIN - B Boa r d
Fusing Unit
PWB-E Bo ard
Optical Unit
PWB-F Board
Figure 1-17. Component Layout
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General Description
1.5.1 C169 MAIN-B Board
The C169 MAIN-B board is a video controller and engine controller board. The primary functions of this board are receiving print data from the host, generating the print image (video), and sending the print image to the engine controller via the video interface. A 32-bit 22 MHz RISC MB86933H SPARKlite CPU in location IC1 is used, and the following memory chips and custom ICs are assigned to the 4GB memory space. t Memory chips Code and font ROMs: four 4M-bit EPROMs (IC13, 14, 15, 16) or two 8M-bit mask ROMs (IC21, 22) Optional NLSP font ROM: 4M-bit or 8M-bit ROM (IC12). Not available in U.S. version. 4M-bit DRAMs (IC17, 18) EEPROM (IC11) t Custom ICs ASIC E05A91 (IC2) ASIC E05A92 (IC3) ASIC E05A93 (IC4) t Others Reset IC M51953BFP (IC6) The engine controller consists of an M3807x 8-bit CPU, including a MASK ROM. It controls laser scanning (the polygon mirror drive motor), image synchronization, laser beam pulse width, and power. There are two types of C169 MAIN-B boards used as after service parts. The following table shows differences between them.
Table 1-16. Differences in Components for the C169 MAIN-B Board
US version IC12 Jumper J20 None Open Other Version IC socket Short
E05 A93 (IC4)
(IC 12) (IC 16) (IC 14) (IC 15)
M B8 6 9 3 3 H (IC1 )
E05 A91 (IC2)
E05 A92 (IC3)
(IC 13)
M 3807 (IC201)
Figure 1-18. C169 MAIN-B Board
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1.5.2 PWB-E Board
The PWB-E is the power supply board, which consists of a switching regulator circuit. It converts the AC line voltage into +24 V and +5 VDC voltages. There are two types of power supply board, the 100/120 V type and 220/240 V type. The difference between the two circuits is only in the input section.
CAUTION
Do not touch VR1 on PWB-E board. This volume is for factory setting only.
VR1
F1
Figure 1-19. PWB-E Board 1.5.3 PWB-F Board
The PWB-F is the high-voltage supply circuit board. It converts the development bias, OPC drum charge bias, and image transfer bias.
CAUTION
Do not touch VR3 on the PWB-F board. These volumes are for factory setting only.
VR3
Figure 1-20. PWB-F Board
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General Description
1.5.4 Optical Unit
The optical unit consists of the laser diode (semi-conductor laser), the mirror motor (scanner motor) which drives the polygon mirror for laser scanning, and several mirrors and lenses. The laser beam generated by the laser diode is conducted to the OPC drum surface by way of the polygon mirror, as well as several mirrors and lenses, to create a latent electro-photographic image on the drum.
Figure 1-21. Optical Unit 1.5.5 Fusing Unit
The fusing unit fixes the toner to the paper using heat and pressure. This unit has a heater lamp, thermistor, and thermal fuse. There are two types of fusing units, the 120 V type and the 220/240 V type. The only difference between them is the heater lamp.
Figure 1-22. Fusing Unit
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1.5.6 Photoconductor Unit
Core mechanisms of the printing process, such as charging and imaging, are integrated into this unit.
Figure 1-23. Photoconductor Unit 1.5.7 Developing Cartridge
Core mechanisms of the printing process, such as developing, are integrated into this cartridge.
1.5.8 Lower Paper Casste Unit
This optional paper cassete allows you to feed up an addtional 250 sheets of A4 or B5 paper into this printer.
Figure 1-24. Developing Cartridge
Note:
While you use A4/B5 paper, jumper JP1 on the circuit board of lower paper casstte unit should be set to 2-3. While you use letter/ executive paper, jumper JP1 should be set to 1-2. Jumper JP2 is fixed to 1-2.
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Chapter 2
Operating Principles
Table of Contents
2.1 ENGINE OPERATION 2-1 2.1.1 Print Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 2.1.1.1 Paper Feeding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 2.1.1.2 Drum Charge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 2.1.1.3 Laser Exposure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5 2.1.1.4 Development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5 2.1.1.5 Image Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6 2.1.1.6 Fusing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6 2.1.2 Engine Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7 2.1.2.1 Main Motor Functions and Control . . . . . . . . . . . . . . . . . . . . . . . . 2-8 2.1.2.2 Paper Take-Up Sensor and Paper Exit Sensor. . . . . . . . . . . . . . . 2-9 2.1.2.3 Fuser Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10 2.1.2.4 Scanner Mirror Motor Control . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11 2.1.2.5 Laser Diode Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12 2.1.2.6 Bias Voltages and Laser Drive Timing . . . . . . . . . . . . . . . . . . . . 2-13 2.1.2.7 Fan Motor Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15 2.1.2.8 Power Supply Circuit Function and Safety Protection . . . . . . . . . 2-15 2.2 VIDEO CONTROLLER OPERATION 2-16 2.2.1 C169 MAIN-B Boar