Epson EPL-N1200 Service Manual

EPSON TERMINAL PRINTER

EPL-N1200

SERVICE MANUAL

EPSON

4006838

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.

_i-

T/ON

Nagano, Japan

PRECAUTIONS

Precautionary notations throughout the text are categorized relative to 1) personal injury and 2) damage to equipment.

DANGER

WARfVlNG

The precautionary measures itemized below should always be observed when performing repair/ maintenance procedures.

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.

Signals a precaution which, if ignored, could result in damage to equipment.

DANGER

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 WlTH 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.

FINING

REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON CERTIFIED

1. REPAIR TECHNICIAN.

MARE CERTAIN THAT THE SOURCE VOLTAGE IS THE SAME AS THE RATED VOLTAGE,

2. 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

3. POWER SOURCE BEFORE REMOVING OR REPLACING PRINTED CIRCUIT BOARDS AND/OR INDMDUAL CHIPS.

IN ORDER TO PROTECT SENSITIVE MICROPROCESSORS AND CIRCUITRY, USE STATIC

4. DISCHARGE EQUIPMENT, SUCH AS ANTI-STATIC WRIST STRAPS, WHEN ACCESSING INTERNAL COMPONENTS.

REPLACE MALFUNCTIONING COMPONENTS ONLY WITH THOSE COMPONENTS BY

5. THE MANUFACTURE; INTRODUCTION OF SECOND-SOURCE ICs OR OTHER NONAP- PROVED 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 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.

ICDRH Regulations]

The Center for Devices and Radiological Health (CDRH) of the U.S. Food and Drug Administration implemented regulations for laser products on August 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.

2,1976.

Compli-

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:

This is a Class 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

lo4

W and the wavelength is 790 + 20 nm.

For Denmark Users;

5.0x lO-QW)

790

f20nm

IIIb

Laser Diode Assay that has an invisible laser beam. The print head

ADVARSEL Usynlig

Undga udsaettelse

Klasse 1 laser

laserstr&ling

nrodukt

ved

Abning, r&r

for

strtig.

der onfvlder IEC825 sikkerheds kravene.

- III

sikkerhedsafbrydere er ude af funktion

. . .

For Finland. Sweden Users:

vARoITus

Laitteen kayttaminen muulla kuin t&&i kayttoohjeessa mainitulla tavalla saat- taa altistaa

kayttajan

lasersateiylle.

VARNING Om apparaten anvands pa at-mat kan

anvandaren

for laser klass

utsattas for osynlig

For Finland, Sweden Service People

vARoITus

Avattaessa ja suojalukitus ohitettaessa olet alttiina

sateilylle.

Ala katso

VARNING Osynlig

laserstr&lning

Betrakta ei strblen.

turvallisuusluokan 1

sHtt an

i denna bruksanvisning specificerats

laserstr&ing,

sateeseen.

nar denna

de1 3r oppnad

ylittaville

nakymatt6mHlle

som over&rider

nakymhttomalle

och

spirren Hr

gr%ns

laser

urkopplad

For Norway Users;

ADVARSEL

Dersom apparatet brukes pa visning, kan brukeren utsettes for

annen mate

unsynlig

enn spesifisert i denne bruksan

laserstr%ng som over&rider gren

sen for laser klasse 1.

Dette er en halvleder laser. Maksimal

[bolgelengde

790 f

run.

effeckt

til laserdiode er 5.0 x

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 Hirooka Office 80 Hirooka, Shiojiri-shi, Nagano-ken, Japan

MANUFACTURED:

CORP.

lo4

W o

- iv

For Europe

[Label inside printer]

The following laser safely label will be attached inside the printer as shown below.

For Denmark, Finland, Sweden, and Norway

This manual describes functions, theory of electrical and mechanical operations, maintenance, and repair of

EPL-NlZOO.

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.

- vi

REVISION SHEET

Revision

Rev.

Issue Date

December 9 1996

Revision Page

1st issue

vii -

CHAPTER 1. CHAPTER 2. CHAPTER 3. CHAPTER CHAPTER CHAPTER APPENDIX

GENERAL DESCRIPTION OPERATING PRINCIPLES DISASSEMBLY AND ASSEMBLY ADJUSTMENTS

TROUBLESHOOTING

MAINTENANCE

. . .

VIII -

Chapter 1 General Description

Table of Contents

1.1 FEATURES 1-1

1.2 SPECIFICATIONS 1-3

1.2.1 Basic Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

1.2.2 Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

1.2.3 Reliability Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

1.2.4 Environmental Conditions for Operating (Including Imaging Cartridge). . . 1-5

1.2.5 Environmental Condifitons for Storage and Transporation

(Excluding Image Cartridge). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

1.2.6 Applicable Standards (without any electrical optional unit) . . . . . . . . . . . . 1-6

1.2.7 Specification for Consumable (Imaging Cartridge) . . . . . . . . . . . . . . . . . . 1-6

1.2.8 Physical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

1.2.9 Software Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

1.2.10 Lower Paper Cassette (Option) Specifications . . . . . . . . . . . . . . . . . . . 1-11

1.3 INTERFACE SPECIFICATIONS 1-12

1.3.1 Parallel Interfaces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12

1.3.1.1 Compatibility (Standard) Mode . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12

1.3.1.2 Nibble (Reverse), ECP Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14

1.3.2 Optional Serial Interface (LocalTalk/Serial Module). . . . . . . . . . . . . . . . . 1-18

1.4 OPERATING INSTRUCTIONS 1-22

1.4.1 Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22

1.4.2 SelecType Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24

1.4.3 Service Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29

1.4.3.1 Hexadecimal Dump Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29

1.4.3.2 EEPROM Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29

1.4.3.3 Error Recovery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-30

1.4.4 Display of Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31

1.4.4.1 Status Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31

1.4.4.2 Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-32

1.4.4.3 Warning Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-33

1.4.5 Multi-User and Multi-Emulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-34

1.4.6 Emulation Mode Switch Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-35

1.4.6.1 Emulation Switch by SPL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-35

1.4.6.2 Intelligent Emulation Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-35

1.4.7 Bi Resolution Improvement Technology . . . . . . . . . . . . . . . . . . . . . . . . . 1-36

1.4.8 Printer Initialization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-37

1.4.9 Toner Save Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-38

1.5 MAIN COMPONENTS 1-39

1.5.1 C205 MAIN Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-40

1.5.2 C173 PROG Board`. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-41

1.5.3 Control Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-41

1.5.4 Engine Coontroller Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-42

1.5.5 Power Supply Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-42

1.5.6 High-Voltage Supply Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-43

1.5.7 Optical Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-43

1.5.8 Fusing Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-44

1.5.9 Imaging Cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-44

1.5.10 Lower Paper Cassette. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-45

List of Figures

Figure 1-1. EPL-N1200 Exterior View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Figure 1-2. Printable Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Figure 1-3. Compatibility Mode Signal Timing . . . . . . . . . . . . . . . . . . . . . . . . . 1-12

Figure 1-4. Parallel Interface State Switch Diagram . . . . . . . . . . . . . . . . . . . . 1-15

Figure 1-5. Negotiation Timing Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16

Figure 1-6. Data Transfer Timing Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16

Figure 1-7. Termination Timing Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17

Figure 1-8. Interrupt Timing Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17

Figure 1-9. Control Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22

Figure 1-10. Multi-Port and Multi-Emulation. . . . . . . . . . . . . . . . . . . . . . . . . . . 1-34

Figure 1-11. Emulation Switch by SPL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-35

Figure 1-12. Intelligent Emulation Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-35

Figure 1-13. BiRITech Effect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-36

Figure 1-14. RITech Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-36

Figure 1-15. Toner Save Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-38`

Figure 1-16. Component Layout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-39

Figure 1-17. C205 Main Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-40

Figure 1-18. C173 PROG Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-41

Figure 1-19. Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-41

Figure 1-20. Engine Controller Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-42

Figure 1-21. Power Supply Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-42

Figure 1-22. High-Voltage Supply Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-43

Figure 1-23. Optical Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-43

Figure 1-24. Fusing Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-44

Figure 1-25. Imaging Cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-44

Figure 1-26. Lower Paper Cassette . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-45

List of Tables

Table 1-1. EPL-N1200 Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Table 1-2. Paper Feed Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Table 1-3. Paper Types. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Table 1-4. Special Papers Usability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13

Table 1-9. Parallel Interface Pin Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14

Table 1-10. Serial Interface Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19

Table 1-11. LocalTalk Interface Pin Assignments. . . . . . . . . . . . . . . . . . . . . . . 1-21

Table 1-12. SelecType Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27

Table 1-13. Main Controller Board Default Paper Size Setting. . . . . . . . . . . . . 1-29

Table 1-14. Status Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31

Table 1-15. Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-32

Table 1-16. Warning Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-33

Table 1-17. Differences in Components for the C205 MAIN Board . . . . . . . . . 1-40

EPL-N1200 Service Manual General Description

1.1 FEATURES

The EPSONEPL-N1200 is a non-impact page printer that combines a semi-conductor laser with electro-photographic technology. Resolution is 600/300 DPI and print speed is 12 PPM. The main features are:

o Upward compatibility with the EPL-5600 o No ozone generation o Printing speed — 12 PPM (pages per minute) for A4 size or letter paper o Resolution — 600/300 DPI (dots per inch) o Standard paper tray holds up to 250 sheets o Standard paper tray can be used as manual feed slot o Lower paper cassette (500 sheets ) available as option o Small footprint because output tray is held within the printer



o Support of HP

IBM I239X mode in standard model o 45 built-in scalable fonts (14 Windows TrueType compatible and 31 LJ4 compatible) o With memory improvement technology, standard RAM supports 600 DPI at full-page size in all

modes (LJ4, GL/2, FX, ESC/P2, and I239X modes) o High-performance controller (20 MHz SPARKlite (MB86930) CPU) o Bi Resolution Improvement Technology (BiRITech) refines print quality, eliminating jagged

edges from images and characters on 600 and 300 DPI printing. o Optional EPSONScript Level 2 (PostScript o Optional LocalTalk/Serial Module and Type-B interfaces can be used simultaneously o 2 MB standard RAM and up to 64 MB RAM using optional SIMMs o Two bidirectional parallel interface ports, Parallel B and Parallel C

Parallel B : Supports IEEE 1284 compatible, Nibble modes

Parallel C: Supports IEEE 1284 compatible, Nibble, and ECP modes o High-speed parallel communication rate

Parallel B : Approx. 400 KB / second in fast mode

Parallel C: Approx. 2 MB / second in ECP mode o Support for EPA Energy Star program o Multi-port and multi-emulation are supported o IES (Intelligent Emulation Switch) allows switching between EPSONScript mode and other

mode o Setting for automatic release of paper size errors

LaserJet4 (LJ4) emulation mode, EPSON GL/2 mode, ESC/P 2 mode, and



compatible) module

Figure 1-1 shows an exterior view of the EPL-N1200.

Figure 1-1. EPL-N1200 Exterior View

Rev. A 1-1

General Description EPL-N1200 Service Manual

Table 1-1 lists optional units available for the EPL-N1200.

Table 1-1. EPL-N1200 Options

Cat. No. Description Note

Supports EPSONScript Level 2 ROM

C83219✽ EPSONScript Level 2 ROM Module

— 72-pin RAM SIMM memory modules For IBM PC compatibles

C81262✽ 500 sheet lower paper cassette A4 Lower paper cassette

C812631 500 sheet lower paper cassette Letter Lower paper cassette S051016 Imaging cartridge Toner cartridge

C82334✽ LocalTalk



/ Serial Module — C83620✽ RS-232C intrerface cable (9 pin) For C82334✽ C83619✽ RS-232C intrerface cable (25 pin) For C82334✽ C83618✽ Current loop cable For C82334✽

C82307✽/

C82308✽

C82310✽/

C82311

C82312✽ LocalTalk

32 KB serial interface card —

32 KB parallel interface card —



interface card — C82314✽ COAX interface card — C82315✽ TWINAX interface card — C82323✽ GPIB interface card —

C82331✽

Ethernet interface card for NetWare



Note: The LocalTalk card (C82312✽) cannot be used with LocalTalk setting on the

LocalTalk/Serial I/F module (C82355✽).

mode (PostScript Level 2 compatible) fonts and commands

1-2 Rev. A

EPL-N1200 Service Manual General Description

1.2 SPECIFICATIONS

This section provides statistical data for the EPL-N1200.

1.2.1 Basic Specifications

Print method: Laser beam scanning and dry electro-photography Resolution: 600 DPI Printing speed: 12 PPM (letter/A4) First print time (A4/LT): Less than 16 seconds (A4/Letter; at Polygon-motor stop)

(Warm-up time must be added in above value at standby mode)

Warm-up time: Paper supply: See Table 1-2.

60 seconds (at rated current and 23° C (73° F) temperature)

Table 1-2. Paper Feed Methods

Paper Supply Capacity Paper Size

A5, B5, A4, LT, GLT,

250*3)

Standard paper tray

EXE, LGL, GLG, F4, HL, Custom

Monarch, DL, C5,

10 (Envelope)

C6, International B5, Commercial-10

Lower paper cassette (optional)*1)

*1:Two units maximum can be mounted. *2:Paper size is fixed either A4 or Letter.

*3:70g/m *4:When you set pieces of paper on standard paper tray. *5:When you set a piece of paper on standard paper tray. *6) It can be used as manual feeding paper slot.

Note 1:

(20lb.)paper

The weight in pounds (lb.) is determined by how much 500 sheets cut to 17 × 22 inch would weigh; 1 g/m

500*3) A4 or LT*2)

= 0.2659763 lb.

16 to 24 lb.*4) (60 to 90 g/m 16 to 41.8 lb.*5) (60 to 157 g/m

Envelopes made of 16 to 24 lb. (60 to 90 g/m paper

16 to 24 lb. (60 to 90 g/m

Note 2: Paper size range: width 3.62 to 8.5 inches (92 to 216 mm)

length 5.83 to 14.0 inches (148 to 356 mm)

Paper types: See Table 1-3.

Usable Thickness

(Ream Weight)

)

Table 1-3. Paper Types



Standard paper

Xerox 20 lb. (75 g/m

Regular photocopier paper,

Normal paper

Bond paper, Recycled paper, 16 to 24 lb. (60 to 90 g/m

Card stock (90 to 157 g/m

Special papers

Envelopes, Labels,Letterhead, Transparency (OHP) sheets, Colored paper

Rev. A 1-3

4024 DP paper

)

General Description EPL-N1200 Service Manual

Usability of special papers: See Table 1-4.

Table 1-4. of Special Papers Usability

Input Output OHP Envelopes Labels Card Stock Letterhead

Standard built-in paper tray

Lower paper cassette

R: Reliable feeding and good image quality. P: Possible, but better avoided. N: Not supported.

Face down P P P P R

Face down N N N N P

Paper feed alignment and direction: Paper ejection: Face down Output tray capacity: 250 sheets (standard paper ; 20 lb. (75g/m Printable area (standard paper): See Figure 1-2.

Note: The actual printable area depends on the printer mode. Harmonic noise:

Ozone density: Less than 0.02 PPM Toxicity: No toxicity exists in organic photo-conductor (OPC), toner,

Center alignment for all sizes

Less than 36 dB(A) standby Less than 52 dB(A) operating

and plastic materials

))

4.00mm

Printable Area

4.00mm

4.00mm4.00mm

Figure 1-2. Printable Area

1-4 Rev. A

EPL-N1200 Service Manual General Description

1.2.2 Electrical Specifications Table 1-5. Electrical Specifications

Description 100 V Version 230 V Version

Rated voltage Rated frequency range Input frequency range Power consumption Less than 700 W Less than 800 W Power consumption in

non-standby mode Power consumption in

standby mode (Heater lamp is off.)

100 ∼ 120 VAC

50 ∼ 60 Hz 47 ∼ 63 Hz

Less than 150 W (Average)

Less than 30 W

(without any optionals installed)

230 VAC

1.2.3 Reliability Specifications

MPBF (Mean Prints Between Failures): Over 50,000 sheets Note: MPBF indicates average number of pages printed before an occurrence of a problem

requiring replacement or service.

MTBF (Mean Time Between Failures): 3000 Power on hours (more than 10 months) Jam rate: 1 out of 2,000 sheets or less (excluding multiple-sheet feeding) Feed failure: 1 out of 2,000sheets or less (excluding multiple-sheet feeding) Multiple-sheet feeding: 1 out of 500 sheets or less Paper curl height: 30 mm (1.2 inches) or less (Standard paper)

30 mm (1.2 inches) or less (OHP sheet) Leading edge bending (1 cm or more): 1 out of 1,000sheets MTTR (Mean Time To Repair): 30 minutes or less Durability: 5 years or 300,000 sheets

1.2.4 Environmental Conditions for Operating (Including Imaging Cartridge)

Temperature: Humidity: 15 to 85% RH Altitude: 2,500m (8,200 feet) or lower Levelness: 1 degree or less (front to rear,right to left) Illuminance: 3,000 lux or less (must not be exposed to direct sunlight) Surrounding space: Printer should have at least 100mm of clearance on sides

10 to 35°C (50 to 95°F)

and rear.

1.2.5 Environmental Conditions for Storage and Transportation

(Excluding Imaging Cartridge)

Temperature: Humidity: 30 to 85% RH overfull storage period Drop test: Clear to JISZ0200-1987 Level1

Vibration: Vibration frequency 5 to 100Hz and 100 to 5Hz

Resistance to atmospheric pressure: 61.3 to 101.3 KPa Storage period: 18 months (after date of manufacture)

0to35°C (32 to 95°F) overfull storage period

Sweep time10 minutes Acceleration1G Acceleration direction 3 directions Acceleration time180 minutes(60 minutes for ach direction X, Y, Z)

Rev. A 1-5

General Description EPL-N1200 Service Manual

1.2.6 Applicable Standards (without any electrical optional unit)

Safety Standards

120 VAC model: UL 1950 Deviation 3, CSA 22.2 No.950 Deviation 3 230 VAC model (Europe): EN 60950 (IEC950), NEMKO (IEC950),

CE marking (low voltage directive)

Safety Regulations (Laser Radiation)

120 VAC model: FDA (NCDRH) Class 1 230 VAC model (Europe): VDE 0837 (Laser Class 1)(IEC825)

EMI

120 VAC model: FCC Part 15 Subpart B Class B, DOC Class B 230 VAC model (Europe): Vfg 243 (VDE 0878 Part 3,30),

EN55022 class B (CISPR Pub.22 class B), CE marking (EMC directive)

230 VAC model (Pacific): AS/NZS 3548

Others

Toner: No effect on human health (OSHA, TSCA, EINECS) OPC: No effect on human health (OSHA) Ozone: Less than 0.02 PPM

other UL478 (5th edition) Materials: SWISS Environmental Law (No CdS must be contained) Power Consumption Applies to International Energy Star Program standard

1.2.7 Specification for Consumable (Imaging Cartridge)

Life: 6,000 pages Note: In continuous print mode with A4/letter paper at a 5% image (black/white ratio) ratio. L

life varies, depending on print mode (continuous or intermittent) and/or image ratio.

Environmental Conditions for Storage and Transportation

Temperature: Humidity: 30 to 85% RH over full storage period Drop test: Height 76 cm (30.4 inches): 1 corner, 3 edges, 6 sides

Vibration: Same as printer Resistance to atmospheric pressure: Same as printer Storage period: 18 months after date of manufacture

0to30°C(32 to 86°F) overfull storage period

1.2.8 Physical Specifications

Dimensions (Width × Depth × Height):

Printer: 411 × 484 × 265 mm (16.2 × 19.0 × 10.4 inches) With one lower cassette: 411 × 484 × 365 mm (16.2 × 19.0 × 14.4 inches) With two lower cassettes: 411 × 484 × 466 mm (16.2 × 19.0 × 18.3 inches)

Weight: Approx. 15 Kg (33.1 lb.)

(including imaging cartridge, excluding optional unit)

1-6 Rev. A

EPL-N1200 Service Manual General Description

1.2.9 Software Specifications

Built-in modes: HP LaserJet4 emulation ( PCL

EPSON GL/2 mode (LJ4-GL/2 mode and GL-like mode) FX (FX-870/1170,LX-100) emulation mode ESC/P2 (Stylus800/1000) mode I239X ( IBM 2390/2391 Plus emulation) EPSON PostScript Level 2 (Option)

Note: The 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 GL/2 mode in the HP LaserJet 4 emulation. 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.



5e)

Table 1-6. Differences between EPSON GL/2 and

GL/2 in the HP LaserJet 4 Emulation

EPSON GL/2 Mode

PCL mode Does not exist Exists as the initial mode Paper eject Supports PG, AF commands Supported in PCL Auto eject SelecType setting Not available Reduced printing SelecType setting Available in PCL Switch to PCL

(ESC %#A) Reset (ESC E) Ejects paper and then initializes PJL, EJL, and ES Supported Supported

Advance Full Page (PG, AF)

Notes: EPSON GL/2 mode has two operational modes. One is LJ4-GL/2 mode; the other is the

GL-like mode. LJ4-GL/2 mode emulates the GL/2 mode in the HP LaserJet 4 emulation. The user can

print with software that supports the HP 7600 series plotter. The GL-like mode features all the commands of the LJ4-GL/2 mode, plus a few additional

commands. The GL-like mode emulates some of the HP-GL commands. If the application software uses unsupported commands for the GL-like mode, print cannot be assured.

Optional modes:

EPSON Script Level 2(PostScript Level 2 emulation) mode

Not supported Supported

Supported Not supported

GL/2 for HP LaserJet 4

Emulation Mode

Ejects paper, switches to PCL, and then initializes



plotter (HP 7475A, etc.)

Auxiliary software: Hexdump

Status sheet Font sample

Built-in fonts: SeeTable1-7.

Table 1-7. Built-in Fonts (Bitmap Fonts)

Applicable Mode

Resident Fonts

Line Printer 16.66 CPI (Portrait) OCR B 10 CPI (Portrait)

V: Supported, -: Not Supported

Rev. A 1-7

HP LJ4

GL/2

ESC/P 2 FX I239X

V--

-VV

General Description EPL-N1200 Service Manual

Table 1-7. Built-in Fonts (Scalable Fonts)

Applicable Mode

Resident Fonts

HP LJ4

GL/2

ESC/P 2 FX I239X

EPSON Roman - V V EPSON Sans serif - V V V EPSON Prestige - V V V EPSON Script - V V V EPSON Gothic - - - V EPSON Presentor - - - V EPSON Orator - - - V



Dutch

801 Roman SWC V - - Dutch 801 Bold SWC V - - Dutch 801 Italic SWC V - - Dutch 801 Bold Italic SWC V - - Zapf Humanist 601 Demi SWC V - - Zapf Humanist 601 Bold SWC V - - Zapf Humanist 601 Demi Italic SWC V - - Zapf Humanist 601 Bold Italic SWC V - - Ribbon 131 SWC V - - Clarendon Condensed SWC V - - -



Swiss

742 SWC V - - Swiss 742 Bold SWC V - - Swiss 742 Medium Italic SWC V - - Swiss 742 Bold Italic SWC V - - Swiss 742 Condensed SWC V - - Swiss 742 Bold Condensed SWC V - - Swiss 742 Condensed Italic SWC V - - Swiss 742 Bold Italic Condensed SWC V - - Incised 901 SWC V - - Incised 901 Black SWC V - - Incised 901 Italic SWC V - - Original Garamond SWC V - - Original Garamond Bold SWC V - - Original Garamond Italic SWC V - - Original Garamond Bold Italic SWC V - - Audrey Two SWC V - - Flareserif 821 SWC V - - Flareserif 821 Extra Bold V - - Swiss 721 Roman SWM V V - Swiss 721 Bold SWM V V - Swiss 721 Oblique SWM V - - Swiss 721 Bold Oblique SWM V - - Dutch 801 Roman SWM V V - Dutch 801 Bold SWM V V - Dutch 801 Italic SWM V - - Dutch 801 Bold Italic SWM V - - Symbol Set SWA V - - More WingBats SWM V - - -

V: Supported, -: Not Supported

1-8 Rev. A

EPL-N1200 Service Manual General Description

Table 1-7. Built-in Fonts (Scalable Fonts;Cont’)

Applicable Mode

Resident Fonts

HP LJ4, GL/2 ESC/P 2 FX I239X

Courier SWC V V V V Courier Bold SWC V V V V Courier Italic SWC V - - Courier Bold Italic SWC V - - Letter Gothic Roman SWC V V V Letter Gothic Bold SWC V V V Letter Gothic Italic SWC V - - Ext. Graph - V V V

V: Supported, -: Not supported

Rev. A 1-9

General Description EPL-N1200 Service Manual

Font Symbol Sets and Character Tables

HP LaserJet 4 Mode (bitmap fonts) : 28 symbol sets

Roman-8 Norweg1 Roman Extension French HP German ItalianT JIS ASCII ECM94-1 Swedis2 ANSI ASCII Norweg2 UK French2 German HP Spanish Legal Chinese 8859-2 ISO Spanish IRV Swedish Portuguese 8859-9 ISO IBM Portuguese IBM Spanish IBM

HP LaserJet4 Mode (scalable fonts) :45 symbol sets

Roman-8 Norweg1 Roman Extension French HP German Italian JIS ASCII ECM94-1 Swedis2 ANSI ASCII Norweg2 UK French2 German HP Spanish Legal Chinese 8859-2 ISO Spanish IRV Swedish Portuguese PsMath 8859-9 ISO IBM Portuguese WiTurkish DeskTop Math-8WiE.Europe PcTk437 Windows PsText IBM-US IBM-DN McText PcMultilingual VeInternational VeUS PiFont PcE.Europe Symbol WiAnsi TWingdings MsPublishing VeMathRIBM SPanish



-US IBM-DN PcMultilingual

ESC/P 2 Mode : 15 International characters and 9 code tables

USA SPAIN1 FRANCE JAPAN GERMANY NORWAY UK DENMARK2 DENMARK1 SPAIN2 SWEDEN L.AMERICA ITALY KOREA TLEGAL

PcUSA(437) PcMultilingual(850) TPcPortuguese(860) TPcCanFrench(863) PcNordic(865) T PcTurk2(857) PcE.Europe(852) BpBRASCII BpAbicomp

FX Mode : 13 International characters and 9 code tables

USA SPAIN1 FRANCE JAPAN GERMANY NORWAY UK DENMARK2 DENMARK1 SPAIN2 SWEDENT L.AMERICA ITALY

PcUSA(437) PcMultilingual(850) TPcPortuguese(860) PcCanFrench(863) PcNordic(865) PcTurk2(857) PcE.Europe(852) BpBRASCII T BpAbicomp

I239X Mode : 5 code tables

PcUSA(437) PcMultilingual(850) RPcPortuguese(860) PcCanFrench(863) PcNordic(865)

1-10 Rev. A

EPL-N1200 Service Manual General Description

1.2.10 Lower Paper Cassette (Option) Specifications

Paper Size: A4 or Letter

Paper Weight: 60 to 90 g/m Print Speed: 12 PPM (letter/A4)

(16 to 24 lb)

Paper Feed: Automatic feed delivery system. Cassette capacity up to 500 sheets

(75 g/m

or 20 lb paper)

Feeding Speed (first print): First Lower Paper Cassette:

16 seconds or less; (A4 or letter) Second Lower Paper Cassette

16 seconds or less; (A4 or letter)

Feeding Speed

12 PPM (A4/Letter)

(subsequent sheets) Paper Type: Plain paper, such as copier paper Power Supply: 5 V DCand 24 VDC are supplied by the printer Dimensions and Weight:

(Width × Depth × Height)

Lower paper cassette entire housing; 405 × 477 × 107 mm (18.8 × 19.0 × 4.2 inches)

2.8 Kg (6.2 lb.) Paper Cassette; 252 × 318 × 82 mm (9.9 × 12.5 × 3.2 inches)

1.1 Kg (2.4 lb.)

Harmonic noise: Less than 52 dB(A) (operating)

Rev. A 1-11

General Description EPL-N1200 Service Manual

1.3 INTERFACE SPECIFICATIONS

The EPL-N1200 is equipped with the following external interfaces:

■ Parallel interface B

■ Parallel interface C

■ Serial interface on optional LocalTalk/Serial module

■ LocalTalk interface on optional LocalTalk/Serial module

1.3.1 Parallel Interfaces

There are two parallel interfaces: parallel interface B and parallel interface C. Each interface has his own connector.

Parallel Interface B

Interface specification complies with IEEE 1284-I. Operating modes:

Compatibility (standard) and nibble (reverse) modes

Transfer speed: APPROX. 400 KB/second (MAX.) Connector type: Amphenol or equivalent (IEEE 1284B - type connector)

Parallel Interface C

Interface specification complies with IEEE 1284-II. Operating modes:

Compatibility (standard), nibble (reverse), and ECP modes

Transfer speed: APPROX. 2MB/second in ECP mode (MAX.) Connector type: IEEE 1284C - type connector

1.3.1.1 Compatibility (Standard) Mode

System: STROBE synchronization, 8-bit parallel data transfer Handshaking: BUSY andACKNLG signals Applicable plug: 57-30360 (Amphenol or equivalent) Signal timing: See Figure 1-3. Signal description: See Table 1-8.

0.5

(minimum)

0.5

(minimum)

DATA 1-8

STROBE

0.5

BUSY

ACKNLG

s (maximum)

VALID

0.5 or 5

0.5

s (minimum)

(minimum)

0 s

(min.)

1 or 10

(typical)

VALID

Figure 1-3. Compatibility Mode Signal Timing

1-12 Rev. A

EPL-N1200 Service Manual General Description

Table 1-8. Parallel Interfaces Pin Assignment

Parallel-B Parallel-C

Signal Name I/O

No.

STROBE I 15 STROBE I

2-9 DATA 1-8 I 6-13 DATA 1-8 I/O

ACKNLG O 3 ACKNLG O

11 BUSY O 1 BUSY O

Pin No.

Signal Name I/O

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 DATA8. The signal state must be maintained for 0.5 µsec. on either side of the

ACKNLG is an acknowledge pulse with an approximate width 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.

The BUSY signal informs the host computer of the printer state. When the signal is HIGH, the printer cannot accept data.

STROBE signal active edge.

The PE signal indicates paper empty for the

12 PE O 5 PE O

13 SLCT O 2 SLCT O

AUTO-FEED I 17 AUTO-FEED I Not used.

15,18,

19-30 GND - 19-35 GND - Ground level for the twisted pair return signal.

NC - - - - Not used.

34 16 GND - - - -

CHASSIS

GND

INIT I 14 INIT I

ERROR O 4 ERROR O

33 GND

---

standard tray selected through SelecType or command, or for the optional paper cassette. Paper empty is indicated by HIGH.

Use at reverse mode.

Logic ground level. Connected to the printer chassis. The printer

chassis GND and the signal GND are connected to each other.

The STROBE signal is ignored when this signal is LOW.

This level goes LOW when the printer is:

out of paper paper jam in error state off line

- Same as for pins 19 to 30.

35 +5 - - - - Pulled up to +5V through 1.0 Kohm resistance.

SLCT IN - 16 SLCT IN I

-- - 18

Rev. A 1-13

-36

Host Logic High

Peripheral Logic High

Use the reverse mode. Hosyt logic high signal

O Peripheral logic high signal

General Description EPL-N1200 Service Manual

1.3.1.2 Nibble (Reverse), ECP Mode

The reverse mode for EPL-N1200 supports the IEEE-P1284 nibble mode. This printer can run in reverse mode, in which the printer can inform the computer of its status by EJL and PJL commands.

System: Connector type: P90-25027-1 (Amphenol) receptacle Applicable plug: 57-30360( Amphenol or equivalent) Signal description: See Table 1-9.

Nibble mode of IEEE-P1284

Table 1-9. Parallel Interface Pin Assignment

Pin No. Signal Name I/O Description

2-9 DATA 1-8 IN

10 11 BUSY OUT

12 PE OUT

13 SLCT OUT

STROBE IN

ACKNLG OUT

HostClk: This signal is a strobe pulse used to read extension request values from the host computer during negotiation.

The signals are data bits of extension request values during negotiation. This printer supports following values: 0000 0100: Request Device ID (by nibble mode sending) 0000 0000: Request nibble mode

PtrClk: Printer data sending clock. PtrBusy: Printer sending data bits 3 and 7 during data transfer

to host computer. AckDataReq: Printer sending data bits 2 and 6 during data

transfer to host computer. Xflag: Printer sending data bits 2 and 6 during data transfer to

host computer. HostBusy: This signal informs the printer of the host computer

15 NC 16 GND -

17 CHASSIS GND 18 NC - Not connected.

19-30 GND -

31 32 33 GND -

34 NC 35 +5 - Pulled up to +5V through 1.0 Kohm resistance.

AUTO-FEED IN

INIT IN nInit: High level fixed ERROR OUT

SLCT IN IN

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.

Ground level for the twisted pair return signal.

nDataAvail: Printer sending data bits 0 and 4 during data transfer to host computer.

Same as for pins 19 to 30. Not used.

1284Active: If this signal is set to HIGH, this printer active P1284 (reverse mode).

1-14 Rev. A

EPL-N1200 Service Manual General Description

Compatibility Mode

Forward

Data

Transfer

No data sent

Host Busy

Data Not

Available

STROBE

ACK and BUSY

ERR=HIGH

No data sent

Forward Idle

SLCT IN=HIGH

Negotiation

Reverse

Data Transfer

Failed

Negotiation

Sending data

ERR=LOW

Sending data

AUTO FEED=LOW

Request to send data

Terminate

SLCT IN=LOW

ERR=LOW

Host Busy Data Available

AUTO

FEED=LOW

Reverse

ERR=LOW

Idle

Figure 1-4. Parallel Interface State Switch Diagram

Figure 1-4 shows the parallel interface state switch diagram.

AUTO FEED=HIGH

Interrupt Host

Rev. A 1-15

(

)

(

)

General Description EPL-N1200 Service Manual

Figure 1-5 shows the timing chart for negotiation.

DATA

SEL-IN

STROBE

AUTO-FEED

ACKNLG

BUSY

ERROR

Peripheral Busy Status

Current Peripheral StatusPE

Current Peripheral Status

Compatibility

00h or 04h

Negotiation

Note1

Note 2SLCT

Note1

HB DA or HB DNA

Note 3

Figure 1-5. Negotiation Timing Chart

Note 1: The signal is set to HIGH when not sending data.

The signal is set to LOW when sending data.

Note 2: The signal is set to HIGH, if extension request value was 04h. Note 3: HB DA: Host Busy Data Available

HB DNA: Host Busy Data Not Available

Idle or Transfer

Figure 1-6 shows the timing chart for data transfer.

DATA

SEL-IN

STROBE AUTO-FEED

ACKNLG

Peripheral Busy StatusBUSY

SLCT

ERROR

HB DA Negotiation

Bit 3 Bit 7

Bit 2 Bit 6

Bit 1 Bit 5

Bit 0 Bit 4

Figure 1-6. Data Transfer Timing Chart

Peripheral Busy Status

Note 1

Note 2

Note 1

Idle or

Transfer HB DA or HB DNA

Note 3

Note 1: The signal is set to HIGH when not sending data.

The signal is set to LOW when sending data.

Note 2: The signal is set to HIGH, if extension request value was 04h. Note 3: HB DA: Host Busy Data Available

HB DNA: Host Busy Data Not Available

1-16 Rev. A

EPL-N1200 Service Manual General Description

DATA

SEL-IN

STROBE AUTO-FEED

ACKNLG

Note 3

Peripheral Busy StatusBUSY

SLCT

ERROR

Note 1

Note 2

HB DNA, Idle, or HB DA

Termination Compatibility

Current Peripheral Status

Current Peripheral StatusNote 1

Figure 1-7. Termination Timing Chart

Figure 1-7 shows the timing chart of termination.

Note 1: The signal is HIGH when HB DNA.

The signal is LOW when HB DA.

Note 2: The signal is set to HIGH, if extension request value was 04h. Note 3: Idle = LOW

Figure 1-8 shows the timing chart for an interrupt.

Peripheral Busy Status

DATA

SEL-IN

STROBE

UTO-FEED

CKNLG

Peripheral Busy StatusBUSY

SLCT

Note 1

ERROR

Reverse Idle Interrupt

HB DA Transfer

Figure 1-8. Interrupt Timing Chart

Note : The signal is set to HIGH, if extension request value was 04h.

Rev. A 1-17

General Description EPL-N1200 Service Manual

1.3.2 Optional Serial Interface (LocalTalk/Serial Module)

The optional LocalTalk/Serial module contains serial interface with the following characteristics. Type: RS-232C or 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 Note 1: For RS-232C signal level, speeds of 38400 BPS and above place restrictions on the host

computer, cable, and other operating conditions.

Note 2 For current loop signal level, speeds of 2400 BPS and above place restrictions on the

host computer, cable, and other operationg conditions.

Error: Overrun error: Processed as missing data and replaced by “*”

Parity error: Replaced by “*”

Framing error: Replaced by “*”

Breaking character: Ignored Applicable plug Circular miniature DIN 8-pin plug Signal Level

(EIA BASED) :

Note : Annotations “MIN”. and “MAX.” apply to absolute values. Signal descriptions: See Table 1-10.

TXD, DTR

Out put Voltage (VOH) 5 to 15 V

(VOL) -5 to -15 V Open circuit voltage (VO) within Impedance with power off (rO) 300 ohms (MIN.) Load capacitance (CL) 2500 pF (MAX.) Through rate 30 V/u SEC (MAX.) Load resistance (Lo) 3 K to 7 K ohms

RXD, CTS Input Voltage (VIH) 3 V (MIN.)

(VIL) -5 V (MIN.)*1) Input signal range +25 V (MAX.)*1) Input impedance (RI) 3 K to 7 K ohms Imput current (II) + 8 mA (MAX)*1) Open-circuit input voltage (EL) -2 V (MAX>)*1)

+15 V

1-18 Rev. A

+ 119 hidden pages

Epson EPL-N1200 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

PRECAUTIONS

SAFETY INFORMATION

REVISION SHEET

TABLE OF CONTENTS

Chapter 1 General Description

1.2 SPECIFICATIONS