Epson EPL-9000 Service Manual

EPSON TERMINAL PRINTER

EPL-9000

SERVICE MANUAL

EPSON

NOTICE

AN

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

All efforts have been made toensuretheaccuracyof 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 and Epson ESCPare registered trademarks and Epson Corporation.

Speedo,

CG

Univers is a registered trademark of Linotype AG and / or its subsidiaries.

Antique Olive is a trademark of Fonderie Olive.

Albertus is a trademark of Monotype Corporation

Coronet is a trademark of Ludlow Industries (UK) Ltd.

Arial and Times New Roman are registered trademarks of Monotype Corporation

Fontware, FaceLift, Swiss, and Dutch are trademarks of BitStream Inc.

Times and CG Omega are registered trademarks of Miles, Inc.

subjcxts

to change without notice.

ESCP2

plc.

isa tradernarkof Seiko Epson

plc.

GeneraZNotice:

trademarks of their respective

Other product

Copyright @ 1994 by SEIKO EPSON CORPORATION

mrnes

carnpanies.

used herein are for identication purposes only and maybe

Nagano,

Japan

-i-

PRECAUTIONS

Precautionary notations throughout damage to equipment.

DAIVGIER

WAWW4G

The precautionary measures itemized below should always be observed whenperforrning 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.

the

text are categorized relative to 1) personal injury and 2)

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

2. BASIC SAFETY MEASURES AS DICTATED FOR ALL ELECTRONICS TECHNICIANS IN THEIR LINE OF WORK.

WHEN PERFORMING TESTING AS DICTATED WITHIN THIS MANUAL, DO NOT

3.

CONNECT THE UNITTOA 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.

WARNING

1.

REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON CERTIFIED REPAIR TECHNICIAN.

2.

MAKE CERTAIN THAT THE SOURCE VOLTAGE IS THE SAME AS THE RATED VOLTAGE, LISTED ON THE 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

3.

THE POWER SOURCE BEFORE REMOVING OR REPLACING PRINTED CIRCUIT BOARDS AND/OR INDIVIDUAL CHIPS.

4.

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

5. BY THE MANUFACTURE; INTRODUCTION OF SECOND-SOURCE NONAPPROVED COMPONENTS MAY DAMAGE THE PRODUCT AND VOID ANY APPLICABLE EPSON WARRANTY.

SEIUAL

NUMBER/RATING PLATE. IF THE EPSON PRODUCT

ICS

OR OTHER

- ii -

SAFETY INFORMATION

‘lhis

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

accordrng

to the instructions

in this manual provided.

Since radiation emitted by the cannot escape from the machine during any phase of user operation.

For Europe

For Denmark

For Finland, Sweden Users;

Usem;

WARNING: Use of controls, adjustments or performan

r-”-”””-”--

than those

This is a semiconductor laser. and the

Usem;

ADVARSEL

Usynlig Iaserstri?ding Undg5 uds~telse

Klasse

laser

is completely confined within protective housings, the laser beam

sm?cified

wavelen

1 laser produkt der opfylder

in this manual

The

gth is 780 nm.

ved

iibnin~ n~r

for

strWng.

rnavresult

maximum power of the laser diode is 5

sikkerhedsafbrydere er ude af

IEC825 sikkerheds

in hazardous

kravene.

‘ofp-w=otiel

radlationexoosure

m~

funktion.

I

VAROITUS

Laitteen lciiyttlhinen muulla

taa

altistaa kayttajan turvallisuusluokan

Ia.sersiiteivlle.

VARMNG

Orn apparaten kan

anv~dam utsiittas K5r osyrdig Iaserstr&nin&

for laser

For Finland, Sweden Service People

VAROITUS

Avattaessa

siiteilvlle. Ala

VARNING

-g

~Betrakta

klass

laserstriilning niir

ej

anviinds pi%

1.

ja suojalukitus

katso

stxfden.

siiteeseen.

kuin

t.iis.sii

k@t60hjeessa

1

ylittavalle nakymattomalI[

annat

denna del & oppnad och

siitt iin

i denna

ohitettaessa olet

bruksanvisnin

som

alttiina niikymiittonulille

7

rnainitulla tavalla mat

g specificerats,

Wdcrider griinsen

laser

sparren ar Urkopplad

I

. . .

-

Ill -

*..

L.’

‘,

ADVARSEL Dersom apparatet brukes pa annen

visning,

grensen for laser

kan

bmkeren utsettes

klasse

1.

for

unsynlig laserstn!ding

rn&e

enn

spesifisert

som overskrider

i denne

bruksan-

Dette er en

gelengde

Laser

[Label

A

For Europe

Safety Labels

on rear printer case]

laser safety labels is attached on the outside of the printer shown below.

halvleder

er 780 nm.

laser.

Maksimal

effeckt

til Iaserdiode

lllh-

er 5

mW

og

brd-

r

-

I

IASER MASSE

CIJLSS

1

IJ$SER KIA!3SE

LUOKAN 1

1

IJiSER PRODUKT I.H.T.

IASER14TE

1

NACH

PRODUCT TO

- iv -

IEC

825

IEC

825

IEC 825

1

[Label inside printer]

The following laser safety label will be attached inside the printer as shown

For

Danmark, finland, Swadan,

km

DANGm

*

CLASS 3B 780nm 5mWmax

~UTION

PREOWCldN RAOIAC16N LA5tRlCAlW0181E C1.1AN005E ABRA~ANuLE

VARNING

AOVARSEL

AOVERSEL

VARO! NFWYNEAToN AVA~A6w JA

VORSICHT!

ATTENTION

and Norway

rkll~t:

~1 4 i

9-07 ~ t

.Rf.hl:

i$lstm+nkils!!

INVISISIIE

IASERJIAOW_WEN

AvOIOEXP05URE T08EAM

NEV018LE

LASMTFWXA7WNWWEN OPEN AND INTERLOCKS DE fEATEO.

AVLNO

EXPOSURE TOMAM.

EV17E

IA

EXPOSIC16N DIREmAAL HAZ.

OSYNLIG LAS fRSTRALNING SPARRARARUIWWEADE~

uSYNLIGLASERSTR~ LING N~RDEKSELkWESOG EKSPONERING FoRSTRALEN.

USYNLIGLASERSTRAL[* VEDA8NING. SIKKERHEO$AF8RYDERE UNDGAUOSATTELSC

LASERSAIEILYLLE Ati=rSo sArEE5EN.

UNSICH18ARE LASERSTIL4HLUNG, SICHERHEITSVERRIEGEIUNG CIBERLTRUCK?.

EMISSION DE

StCURITt

RAOIATION

EST NEUTRALIStE.

7 * ~~~~~~

+l=mvctm

WE? tttit~: t.

OPEN AND1NTERLOCK5 D6FEATED.

NARDENNA 5TRALEN

ERUDEAF

FOR$TRALING.

SUOIALUKITU5

wENNABDECKUNG

USER

lNVf118Lf QUANOL’AppAREIL

WIIERDE

DEL

ARoWNADOCH

AR

FARL!G.

SIKKERHETsLAS

NAR

FUNUTION.

OHITE1TAES5A

NICHTIN

S’EXPOSERAU RAYON LASER.

-+f-~* *

Qtf ~ f.

EL

INTERBLOQLIE13

8RYTES.

OLEIALTTIINA

GEo6pNET

UND

OERSTRAHL BLICKEN.

ES70UWRTETLOR$QUE LA

below.

UNNG~

-v-

~:.:>.l

.=

c

-./,’

PREFACE

This manual describes functions, theory of electrical and mechanical operations, maintenance, and repair of EPL-9000. 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 to service the equipment.

APPENDIX

Describes connector pin assignments, circuit diagrams, circuit board component layout.

The contents of this manual are subject to change without notice.

- vi -

REVISION SHEET

Revision

Rev.

A

Isaue

Date

Augusl

I

5, 1994

Revision Page

1s

issue

I

:’

. . .

.

c

- vii -

c“

,, . . . .

[.

~..-

“

1.2 SPECIFICATIONS

General Description

This section provides statistical data for the

1.2.1

Basic Specifications

Printing method: Resolution: 600/300 dpi Printing speed: First printing time:

Warm-up time:

Paper supply: See Table 1-2.

Laser beam scanning and dry

8

ppm (letter/A4),

18.9 seconds (A4 cassette feed)

19.1 seconds (Letter cassette feed)

25.0 seconds Less than 120 seconds

(at rated current and 20° C (68° F) temperature)

EPL-9000.

(A3

Table 1-2. Paper Feed Methods

Capacity

Paper Supply

Standard built-in paper tray or optional

paper cassette unit

Manual feeder

lower

;;:::;:;

cassette

A4/Letter

paper

cassette

(MSI)

I

M

(17

l~:grj/m

250

5

ppm (B4),

cassette feed)

~

)

4.3

A3, A4, HLT, LGL,

B, F4

A4, A!5,

EXE

lntemational-B5, MON, C1O, DL,

electro-photography

ppm (A3)

Paper Size

A5,

EXE,

l?= ‘ T “ 7

xl, L

C5

by cassette feed

B4, B5, LT,

GLG,

I ,

I-IL

I ,

Usage Thickness

16 to 24 lb. (60

16 to 24 lb.

(60

Special paper [label, Envelopes made

of 16 to 28 lb.

(60

(Ream Weight)

to

90

g/m2)

to 135

to 105

a/m2)

OHP)

a/m2)

Notes:

1.

The weight in

weigh; 1 g/m2 = 0.2659763 lb.

2. The printer can use manual feed for paper by hand.

3. When inserting horizontal.

pounds (lb) is determined

A4,

AS,

B5, LT, HLT,

by

how much 500 sheets cut to 17x 22 inches would

B4,

A3,

LGL, GLG,

EXE, and GLT size

B and

F4 size paper, if user supports

papers, keep the longer side

Rev.

A

1-3

Genersl L)eswiption

EPL-$tX# ~

“

ManuaJ

Paper types:

‘tatid ‘r

Normal paper

Special paper

Usability of special papers:

Table 1-4. Usability of Special Paper

Input

Paper tray Manual feed

(MSI)

Envelope

cassette

Standard

paper

R

R N

See Table 1-3.

Table 1-3. Paper Types

Xerox@

20 lb.

Recycled paper 16 to 24 lb. Card stock (90 to 135

Envefopes

Labels Letterhead

Transparency

Colored

Normal

paper

R R P

N

4024 DP paper

(75 dr#)

Regular photocopier paper

Bondpaper

(60

to 90

(ah#’)

(OHP)

sheets

rxmer

See Table

1-4.

OHP Envelopes

P N

N

@m2)

P P

Labefs Card Stock

P P P

N N

N

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

Paper size range:

Paper feed alignment and direction: Center alignment for Paper ejection: Output tray capacity:

98 mm (3.87 inches) to 297 mm (11.7 inches)

140 mm

Face down 250 sheets (standard paper)

(5.5

inches) to

432 mm (17

aII

sizes

(Width)

inches) (Length)

$’;

c

14

Rev.

A

EPL-9000

Service Manual

General Description

Printable area (standard paper):

5

.Omm~

—

Figure 1-2. Printable Area

Note:

Noise:

Ozone density:

Toxicity:

The actual printable area depends on the printer mode.

See Figure 1-2.

—

Printable Area

—

I

Less than 35 Less than 48

5.Omm

dB(A) dB(A)

—

(standby) (operating)

0.05 ppm (typical) No toxicity exists in organic photo conductor

or plastic materials

(OPC),

toner,

1.2.2 Electrical Specifications Table 1-5. Electrical Specifications

Description

Rated voltage Input voltage range

Rated frequency range

Input frequency range

Power consumption

100 V Version 200 V Version

115

VAC

104-127

Less than 500 W

1.2.3 Reliability Specifications

MPBF

(Mean Prints Between Failures): Over 12,000 sheets

MPBF

Note:

Jam rate:

Multiple paper feeds:

Paper curl height: MTTR (Mean Time To Repair): Durability:

indicates average number of pages printed before occurrence of problem requiring

replacement or service.

1 out of 3,000 sheets or less (Standard paper)

1 out of 2,000 sheets or less (Normal paper)

1 out of 25 sheets or less (Label, Envelope,

1 out of 800 sheets or less (Standard paper)

1

out of 500 sheets or less (Normal paper)

1

out of 25 sheets or less (Label, Envelope, 30 mm (1.2 inches) or less 30 minutes or less 5 years or 300,0000 sheets

VAC

50-60 Hz

47-63

Hz

220-240

198-264

VAC VAC

Less than 600 W

OHP)

Rev.

A

1-5

General

Description

EPL-XXUI

Service Manual

1.2.4 Environmental Conditions for Operation (Including Imaging Cartridge)

Temperature: Humidity:

Altitude: Levelness:

Illuminance:

10 to 32° C (50 to 90° 20 to

80’Yo

RH

2~

m

(8ZO0

feet) or lower

Printer should be installed on a

3@Kl

I

UX

or less (Must not be exposed to direct sunlight.)

F)

level

plane.

1.2.5 Environmental Conditions for Storage and Transportation

Temperature:

Humidity:

Drop test: Vibration:

Resistance to atmospheric pressure:

Storage term:

O to 35° C (32 to 95° F) over –20 to

4(Y

C (-4 to 104° F) under extreme conditions

(Extremes are allowable for up to Temperature variation must be 10° C (18° F)/hour or less

20 to

8070

RH

over full storage term

5 to

%?. RH

(Extremes are allowable for up to Height 52 cm Vibration frequency

Acceleration Acceleration direction 3

More than 12 months (following date of manufacture)

under extreme conditions

740

hecto pascal

full

storage term

5 to55

IG

diwction

l/300f full

l/300f

full storage term)

Hzand55

storage term)

to5Hz

-

c

:...

,

,7

1.2.6

Applicable Standards

Safety

120 220/240

Standards

VAC

model:

VAC

model:

None EN 60950

SEMKO (IEC950), DEMKO (IEC950)

Safety Regulations (Laser radiation)

120

VAC

220/240

model:

VAC

model: VDE

None

SEMKO(IEC825), DEMKO (IEC825)

EMI

120

VAC

220/240

model:

VAC

model:

None

DOC

Vfg

EN55022 class B

Others

Toner: OPC: Ozone: Materials:

No effect on human health No effixt on human health

UL478

SWISS Environmental Law (No

(IEC950),

0837 (Laser

Class B

243

(VDE (X378

(5th edition)

NEMKO

Class 1)(IEC825), SETl (IEC825),

Part

(CISPR Pub.22

(IEC950), SETI (IEC950),

3s0)

class B)

(OSHA-T!XA, EINECS)

(OSHA)

CdS

must be contained)

“,.

c

..-

1-6

Rev.

A

. . .-

k:.

,.

h’.)

EPL-9000

Service Manual

1.2.7 Specification for Consumable (Imaging Cartridge)

General Description

Life:

Note:

Environmental

Temperature:

Humidity:

Drop test: Vibration: Resistance to atmospheric pressure: Storage term:

1.2.8

Dimensions (Width x Depth x Height):

Printer:

Weight:

In continuous printing mode with ratio). The life varies, depending on the printing mode (continuous or intermittent) and/or the image ratio.

CondRions

for Storage and Transportation

Physical Specifications

6,500 pages

O to 35° C (32 to 95° F) over full storage term –20 to 40° C (-4 to 104° F) under extreme conditions (Extremes are allowable for up to 1/30 of full storage term) Temperature variations must be 10° C (18° F)/hour or less.

20 to 5 to

(Extremes are allowable for up to 1/30 of full storage term)

Height 76 cm (30.4 inches) Same as printer More than 740 24 months (following date of manufacture)

437 x 473 x 270 mm (17.2 x 18.6x 10.6 inches) Approx. 17 Kg (37.5 lb.) (consumable, excluding all options)

A4/letter

80Y0

95~0

RH under extreme conditions

paper at a

RH over full storage term

hecto pascal

5’XO

image ratio (black/white

Rev.

A

1-7

General Description

1.2.9 Software Specifications

HP

Built-in modes:

Note:

The EPSON emulation. Table 14 shows the differences mode in the HP LaserJet 4 emulation. While in EPSON enter

operator’s application software cannot send the

GL/2

Tabie

LaserJet 4 emulation

EPSON

M ESC/P

GL/2

mode without sending the

GL/2

mode

@$70/1170,

2

(LQ-570/1070)

mode is similar to the

LX-NM)

1-6. Differences between EPSON GU2 and

GU2 in the HP LaserJet 4

EPSON

(PCL@

5e)

(LJ4-GL/2

mode

mode and

emulation mode

GL/2

between EPSON

ESC ‘3WB

GL/2

Mode

EPL-9tlXXl ti”ce Wnual

GL-like

mode included in the HP LaserJet 4

(Enter

ESC ‘MB comrnan

mode)

GL/2

mode and the

GL/2

mode, the operator can

GL/2

mode)

cornman

d, then use this mode.

GL/2

d. If the

Emuiation

GlJ2

for HP

Emulation Mode

LaserJat

4

PCL

mode

Paper eject Auto eject Reduced printing Switch to Reset

PJL, EJL, and ES

Advance Full Page

Notes:

Optioml

Auxiliary software: Hex dump

Built-in fonts: See Table 1-7

PCL (ESC OA#A)

(ESC

E)

(PG, AF)

EPSON

GL-like rncde. LJ4-GL2

print with software that supports the HP 7600 series plotter. The

additional (HP 7475A, etc.) co

the

modes: EPSONScript Level 2 (PostScript Level 2 emulation) mode

GL/2

mode has two operational modes. One is

mode emulates the

GL-like

mode features all the cornmands of the

comrnan

mode, print cannot be assured.

Status

Font sample

Does not exist

Supports

SelecType SelecType

Not Ejects

supported supported

supported

ds. The

remands. If the application software uses unsupported co

sheet

PG,

AF commands

setting

SUflflOrted

papr

and then initialize

GL/2

mode in the HP LaserJet 4 emulation. The user can

GL-like

mode emulates some of the

Exists as the initial mode

Supported in

Not available Available in supported Ejects paper, switches to

and then

Not

SUppIOlted

LJ4-GL/2

PCL

PCL,

init”wlize

mode; the other is the

mode, plus a few

HP<L@

plotter

remands for

,.,

,{

‘$+

c

. .

c.’

Resident

BitrnaP

fonts Line Printer Prestige Prestige

S:

Supported, NS: Not Supported

1-8

16.66 cpi (Portrait)

12 cpi

20

cpi

Tabie

Fonts

(Portrait) (Portrait)

1-7.

Buiit-in

Fonts

Applicable Mode

H&~4

s

NS NS

E~/p

NS

s s

2

F)(

NS

s s

Rev. A

.

. . . . . . .

(/

“..

.

;

EPL-9000

Scalable fonts

Dutch’”

Dutch 801 Dutch 801

Service

801

Dutch 801

Zapf

Humanist 601

Zapf

Humanist 601

Zapf

Humanist 601

Zapf

Humanist 601

Ribbon 131

Clarendon

Swiss’”

742 Swiss 742 Swiss 742 Swiss 742 Swiss 742 Swiss 742 Swiss 742 Swiss 742 Incised 901 Incised 901

Incised 901 Original Original Original Original Audrey Two

Flareserif Flareserif

Swiss 721 Swiss 721 Swiss 721

Swiss

Garamond Garamond Garamond Garamond

821 821

721 Dutch 801 Dutch 801 Dutch 801 Dutch 801 Symbol Set More WingBats Courier Courier Courier Courier Letter Gothic Letter Gothic Letter Gothic

Manual

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

Resident Fonts

Roman Bold Italic

Bold Italic

Demi SWC

Bold

Demi

Bold Italic

Swc

Condensed

Swc

Bold Medium Italic Bold Italic Condensed Bold Condensed Condensed Italic Bold Italic Condensed

Swc

Black

Italic

Swc

Bold Italic Bold Italic

Swc Swc

Extra Bold Roman

Bold Oblique

Bold Oblique Roman Bold Italic Bold Italic

SWA SWM Swc

Bold Italic Bold italic Roman Bold Italic

SWC

Italic

SWC

SWM

SWC

SWM

SWC

General

Applicable Mode

H:&JQ

s s s s s s s s s

s s s s s s s s s s s

s s s s s s s s

s

s s s

s

s s s s s s s

ESC~ 2

NS NS NS NS NS NS

NS

NS NS NS NS NS NS NS NS NS NS NS NS

NS NS NS

NS NS NS NS NS NS NS NS NS NS NS

s

NS NS NS

s

NS NS NS

NS s s s s s s s s

s s s s s s s

NS

s

Description

FX

NS

NS NS NS

NS

NS NS NS NS NS

NS

NS NS

s

S: Supported, NS: Not Supported

Rev. A

1-9

Genersl

F6nt

Symbol Sets

HP

LaserJet4

Description

Mode (bitmap fonts):

15symbol

EPL#UM Ser&e Msnwd

sets

Roman-8 Roman Extension

ECM94-1

ANSI ASCII

Norwegl

Italian

sweclis2

UK

French2 German

Legal

IBti-US

Spanish

IBM-DN

PcMultilingual

HP

LaserJet4

Roman-8 Italian

Sweclis2

UK German 8859-2 1S0

PsMath WiTurkish

VeMath Math-8

Mode (scxdablefonts): 34

Norwegl ECM941

ANSI ASCII

French2 Legal

Spanish

8859-9

M#ublishing

DeskTop

WiE.Europe

symbol

Iso

PcTk437 windows

PsText IBM-DN

Pchdultilingual

VeUS

PcE-Europe WiAnsi

IBM-US

McText VeInternational

PiFont

symbol

Wingdings

seb

Q

‘:’.7

. .

.

ESCIP

2 Mode:

USA

FR4NCE

GERMANY UK

DENMARK1 SWEDENT

ITALY

15 International characters and 9 code

SPAIN1

JAPAN

NORWAY DENMARK2

SPAIN2

L.AMERICA

KOREAR

LEGAL

PcUSA(437)

PcPortuguese(860)T PcNordic(865) PcE.Europe(852)

PcMu1tilingual(850) TPcCanFrench(863) PcTurk2(857) BpBRASCII

BpAbicomp

FX

Mode: 13 International characters and 9 code tables

USA FRANCE GERMANY

SPAIN1

JAPAN

NORWAY

UK DENMARK2

DENMARK1 SWEDENT

SPAIN2 L.AMEIUCA

ITALY

tables

PcUSA(437) PcPortuguese(860)T PcNordic(865)

PcE.Europe(852) BpAbicomp

1-1o

PcMultilingual(850) P&anFrench(863) PcTurk2(857) BpBRASCII

Rev.

A

EPL-9000

Service

Manual

General Description

1.3 INTERFACE SPECIFICATIONS

The

EPL-9000

■ Parallel interface

■

Optional LocalTalk interface

■

Optional Type B interface

1.3.1 Parallel Interface

The parallel interface has two modes as follows:

9

Compatibility mode (same as parallel interface of EPSON’s current page printer)

■ Reverse mode

1.3.1.1 Compatibility Mode of Parallel Interface

is equipped with the following external interfaces:

RS-232C/RS-422

interface

System: Handshaking: Connector type: Applicable plug: Transfer speed: Signal timing: Signal description:

DATA 1-8

STROBE

0.5ps

BUSY

ACKNLG

STROBE synchronization, 8-bit parallel data transfer BUSY and

P90-25027-1 (Amphenol)

57-30360

ACKNLG

(Arnphenol

or equivalent)

signals

receptacle

Approximately 400,000 bytes/second (max.) See Figure 1-3. See Table 1-8.

I

VALID

o.5~s

I I

~

\ -

/

0.5 or (minimum)

0.5ps

(minimum)

0s

5pS (min.)

●

\

VALID

+

I

o.5@

(minimum) (minimum)

(maximum)

I

El

1 or

IOps

(typical)

\

Rev.

Figure 1-3. Compatibility Mode

A

Signal Timing

1-11

General Description

Table 1-8. Parallel Interface Pin Assignments

EPL-$WO

Service Manual

Pin No.

1

2-9

10

11

12

13 14 1516NC

17

18

19-30

31

32

33 34 35 36

Signal Name

STROBE

DATA 1-8

ACKNLG

BUSY

PE

SLCT AUTO-FEED

GND

CHASSIS

GND

NC

GND iii?

ERROR

F5 3LCT

IN

ilo

IN

OUT

IN

. . .

.

IN

OUT

. .

Descri*n

STROBE is a strobe

computer. The pulse width

Normally it is

this

sicmal.

HIGH, and data is latched at the trailing edge of

pufse

used to read data from the host

.

must be more than

0.5&c.

I

.

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 O. The most significant bit must be maintained for 0.5

(MSB)

is DATA8. The signal state

p.aec.

on either side of the

STROBE signal active edge.

ACKNLG

of 1 or

reception is completed,

accept new data.

through

The BUSY

state. When the

The PE

selected through paper

is an

10

acknowledge

psec.

This signal goes LOW

pufse

with an approximate width

when the data

which indicates that the printer can

l“iming

with the

BUSY signal is specified

SelecType.

signal informs the host computer of the printer

sianal

is HIGH. the minter cannot

signal indicates paper

SelecType

cassett~

Paper empty is indicated by HIGH.

ernptyfor

the standard tray

or command, or for the optional

acceot dat~

-

Use in reverse mode.

Not

used.

Not

used.

Loaic

around level.

connected to the printer chassis. The printer chassis and the signal

GND

are connected to each other.

GND

Not connected. Ground level for the twisted pair return signal.

me

STROBE

sianal

is

ianored

when this

sianal

is LOW.

This level goes LOW when the printer is:

●

out of paper

D

in paper jam state

●

in error state

o

off line

Same as for tins19 to 30.

Not

used.

Pulled

Use

UD

to

+5V thmuah

the reverse mode.

1.0

Kohm

resistance.

c’

1-12

Rev.

A

EPL-9000

Service Manual

General Description

1.3.1.2

The reverse mode for

Reverse Mode

EPL-9000

supports the nibble mode of

IEEE-P1284.

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: Applicable plug: Signal description:

IEEE-P1284 P90-25027-1 (Amphenol)

57-30360 See Table 1-9.

nibble

(Amphenol

mmle

or equivalent)

receptacle

Table 1-9. Parallel Interface Pin Assignments

Pin No.

1

2-9

10 11

12

13

14

15

16 17

18

19-30

31 32

33 34

35 36

Signal Name

STROBE

DATA

1-8

ACKNLG BUSY

PE

SLCT

AUTO-FEED

NC

GND

CHASSIS

NC

GND

INIT ERROR

GND

NC +5

SLCT IN

I/o

IN

OUT

IN

-

.

IN

OUT

.

IN

HostClk:

request values from the host computer during negotiation.

The signals are data

negotiation.

This signal is a strobe pulse used to read extension

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

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

and the signal

Not connected.

GND

Ground level for the twisted pair return signal.

nlnit:

High level fixed

nDataAvail:

Printer sending data bits O and 4 during data

transfer to host computer.

Same as for pins19 to 30. Not

USf2d.

Pulled up to

+5V

through 1.0 Kohm resistance.

1284Active: If this signal is set to HIGH, this printer active

P1264

(reverse mode).

Description

bits of extension request values during

GND

are connected to each other.

Rev.

A

1-13

General Description

Figure

1-4 shows the parallel interface state switch diagram.

Compatibility Mode

EPL-XWl Service

Rkwwal

r

,0

Forward Data Transfer

ERR=HIGH

No data sent

I

~

AUTO

~

FE ED= LOW

.,,,,,,

ACK and

SLCT IN=HIGH

BUSY

)

SLCT

IN= LOW

ERR= LOW

Sending data

AUTO

=

FFFD LOW

Request to

●

send data

AUTO

FEED=HIGH

ERR= LOW

I

Figure 1-4. Parallel Interface State Switch Diagram

EPL-9000

Service Manual

Figure 1-5 shows the negotiation timing chart.

DATA

SEL-IN

STROBE AUTO-FEED

ACKNLG

COh

or 04 h

General Description

x-

BUSY PE

SLCT

ERROR

~

Peripheral Busy Status

Current Peripheral

Compatibility

Wus

Staius

LA

/

Negotiation

\

\ \

!

;

Note 2

;

L,A

:

HB DAor

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 Note3: HB DA: Host Busy Data Available

HB DNA: Host Busy Data Not Available

Figure 1-6 shows the data transfer timing chart.

DATA

SEL-IN

STROBE AUTO-FEED

/

04h.

/

Notel ;

Notel

HB DNA (Note 3)

:—;

; ;

A

-

:

Idle or

Transfer

ACKNLG

X

BUSY PE

SLCT

ERROR

Peripheral Busy Statu$

HB DA

k,-

Bit 3 Bit 2

Bit 1 Bit O

Bit 7 Bit 6

Bit 5 Bit 4

Negotiation

Peripheral

Figure 1-6. Data Transfer 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 the extension request value is Note 3: HB DA: Host Busy Data Available

HB DNA: Host Busy Data Not Available

04h.

N&e 1

N&e 2

N;te 1 ;

HB

DAor

HB

DNA

(Note 3)

Msy

;

Status

Rev.

A

1-15

Genere!

Description

EPL-~

Service

Menual

Figure 1-7 shows the te

DATA

SEL-IN

STROBE AUTO-FEED

ACKNLG

BUSY PE

SLCT

ERROR

rrnination

Note 3

Peripheral Busy

HB DNA, Idle,

or HB DA

Note 1

Note 2

Note 1

Figure 1-7. Termination Timing

fining chart.

/

!3atu.$

;

~

\

\ /

Termination

$

\ Peripheral Busy Status

;

current Peripheral status

;

Current

chart

Note 1: The signal is HIGH when HB DNA.

The signal is LOW when

Note 2: The signal is set to HIGH if the extension request value is

HB

DA.

03h.

Note3: Idle= LOW

Peripheral Status

Compatibility

Figure 1-8 shows the interrupt

DATA

SEL-IN

STROBE

AUTO-FEED —.

ACKNLG

BUSY PE

SLCT

ERROR

Reverse Idle

tirningchart.

XXXXXX

Note 1

Figure 1-8. Interrupt Timing Chart

Note 1:

The

signal is set to HIGH, if extension request value was

$

Peripheral Busy status

i

u

-

:

Interrupt

~

;

-

HB

DA

u

:

Transfer

c.

.

O&

1-16

Rev.

A

EPL-9000

Service Manual

1.3.2 Serial Interface

Type: RS-232C/R%122 Transfer system: Synchronization:

Full duplex Asynchronous start-stop system

Start-bit: Stop-bit: 1 or 2 bits Data length: 7 or 8 bits Parity:

Protocol:

Transfer speed:

X-ON/X-OFF (can be combined with

DTR

control (can be combined with X-ON/X-OFF)

300,600,

12tXl,

2400,4800,9600,19200,38400, or 57600 bps

Error: Overrun error:

Parity error: Framing error: Breaking Character: Ignored

Signal description:

See Table 1-10.

Table 1-10. Serial Interface Pin Assignments

General Description

1 bit

Odd, even, or none

DTR

control)

Processed as missing data and replaced by Replaced by Replaced by

“’” ““”

““”

Pin No.

1

2

3

4 RTS

5

6

7 8 9

10

11

to 17

18 (RD-) 19

20

21-25

Signal Name

CHASSIS-GND

TXD

RXD (RXD+)

Uo

-

~uT

IN

OUT Transmission request signal output from the printer. It is

CTS

DSR

SIGNAL-GND DCD

(SD+)

IN

-

IN

OUT

(SD-) OUT

NC

IN

NC

DTR

OUT

NC

Description

Connected to the printer chassis. The printer chassis and the signal

GND

are connected to each other.

GND

Serial ASCII data output by the printer. It maintains “MARK’

state

(LOW level) between transmitted character codes. Logic O is at HIGH level (“SPACE”) and logic 1 is at LOW level (“MARK”).

Serial ASCII

data

input to the printer. It maintains “MARK”

state (LOW level) between received character codes.

always at HIGH level during power ON.

Always ignored. Signal input to the printer.

The printer can transmit data through

TXD

while

DSR

is at HIGH level. X-ON/X-OFF, however, can be transmitted regardless of

SelecType

DSR

state. It can always be ignored by setting

(factory setting).

Ground.

Always ignored.

See Note 4. See Note

Not connected. See Note 4. Not connected.

Signal output by printer. When the

RXD

settings do not specify while the printer power is on. When for

DTR

4.

DTR

signals HIGH, the

signal can be received by the printer. The

DTR

control, the signal level is HIGH

SelecType

control,

DTR

goes LOW in case of any error

SelecType

setting is used

conditions. The data

128 characters after

(RXD)

from host computer must be stopped within

DTR

goes LOW.

Not connected.

Rev.

A

1-17

General Description

Epl.-m Serwe‘ Manual

Note 1: ( )

Note 2: Note3: Although the

Note4: SD+, SD-:

indicates an

‘US”,

“DSR”,

for

RS-422

mode if selected through

Serial ASCII data output from the printer. HIGH level; when SD+ voltage is higher than SD-voltage. LOW level; when SD+ voltage is less than SD-voltage. Logic O is “SPACE” and logic 1 is “MARK” state must be maintained between transmitted character codes.

RD+, RD-:

Serial ASCII data input from the computer. HIGH level; when LOW level; when Logic O is “SPACE” and logic 1 is “MARK” state must be maintained between transmitted character codes.

Handshaking

When the cede or sets the Once or sets the

vacant area

DTR signal leveI

the vacant area for data in

DTR flag

to

RS-422

signal, which is

and

“DTR”

states can be selected through

signaIs Rn, ~, DSR, DTR,

RD+

voltage is higher than

RD+

voltage is less than

for data in the input buffer drops to 256 bytes, the printer outputs an

to LOW, indicating that the printer cannot receive more data.

the

buffer recovers to

HIGH,

indicating that the

SelecType.

and DCDare

SelecType.

RD-

voltage.

5X2

bytes, the printer outputs an X-ON code

printer is again ready to receive data.

RS-232Clevel,

voltage.

theycanbe used

X~FF

G

.,.,:

~,,.

Protocol

There are two types of protocols, as listed below, and each of them can be designated by independently.

■

DTR/DSR

SelecType

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

TXD

only when

setting for

■ X-ON/X-OFF

SelecType

indicates an error, and the printer warns the host to stop data transmission within 128 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 error are cleared.

When the remaining capacity of the receive buffer reaches 256 characters, X-OFF

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~N/X-OFP codes can be defined by

SelecType.

protocol

is used to execute the

SelecType

is used to set the

DSR

is at the HIGH level (DSR is always considered HIGH when the

DSR

is OFF). X-ON/X~FF transmission is independent of the

(DC1/DC3) protocol

is used to execute the X-ON/X-OFF protocol. The X-OFF

DTR/DSR

DTR controI

control protocol. The

X43N

DTR

OFF,

(DCl) code is output after

DTR

is always set HIGH. The printer transmits

signal is set to HIGH when

DSR

state.

(DC3)

code is output if status

all

renditions given in the

(DCl)

SelecType

is output

“.+,

c“

.

/’

1-18

Rev.

,*

J

G

A

EPL-9000

Service Manual

1.3.3 Optional LocalTalk Interface

This printer can use the optional LocalTalk interface module.

General Description

Type: Signal level: Protocol:

Transfer speed: 230.4 K bps Signal description:

LocalTalk Same as RS-422 signal level X-ON/X-OFF (cannot be combined with

DTR

control (cannot be combined with X-ON/X-OFF)

See Table 1-11.

Table 1-11. LocalTalk Interface

Pin No.

1

Signal Name

DTR

I/o

~“T

IN

OUT

I

4 I GND

\

RXD-

5

TL----

NC

7 8

RXD+

IN

OUT

INI Refer to

DTR

control)

Pin Assignments

DescritXion

Signal output by the printer. When the

RXD

signal can be received by the printer. The printer transmits the data through Serial ASCII data output from the printer.

HIGH level; when SD+ voltage is higher than SD- voltage. LOW level; when SD+ voltage is less than SD- voltage. Logic O is “SPACE” and logic 1 is “MARK” state must be

maintained between transmitted character codes. Ground. Serial ASCII data input from computer.

HIGH level; when LOW level; when Logic O is “SPACE” and logic 1 is “MARK” state must be maintained between transmitted character codes.

Refer to

\

Not

TXD-.

connected.

RXD-.

RD+

voltage is higher than

RD+

voltage is less than

DTR

signals HIGH, the

TXD

while CTS is

RD-

voltage.

RD-

voltage.

HIG}

Rev.

A

1-19

General Description

EPL-m ~

“

MWluel

1.4 OPERATING INSTRUCTIONS

This section describes the functions performed through the control panel, such as test print, hexadecimal dump, and

1.4.1 Control Panel

The printer control panel gives you easy control over most common printer operations. The panel consists of a liquid crystal display

\

SelecType

functions.

(LCD),

indicator

lighk,

and buttons.

~A?600=

o

cmL#n

❑

n

Fmn

Feed ontmw

MamMl

Resel

n

‘w ‘p-q’ ‘:’

ALT Menu

TI_w

Seiea

Item

MPTray

Sue

A

v

‘H’

Enter

‘1

❑

Figure 1-9. Control Panel

Display (LCD)

A 20-character (5 status. A variety of printer parameters can be displayed and set using

Indicator lights

■ On Line

on:

off

Flashing:

■ Form Feed

This LED indicates the data processing condition for each interface channel: S, P, L, and O. on:

m Flashing

■ Continue

x 7 dot matrix) by l-row liquid crystal display (LCD) unit that indicates printer

SelecType

Communication with the host is possible.

Communi@tion

This state occurs when the system cannot shift from off line to on line, or vice versa.

Received data is stored in the printer but has not been printed. There is no printable data The printer is processing data.

with the host is not currently possible.

remainin

gin the printer.

mode.

..$$

c’

Flashes when an error is detected or a maintenance procedure is needed. An error message appears on the display at the same time.

Rev.

1-20

A

e

EPL-9000

Buttons

Service Manual

General Description

■ On Line

■ Form Feed

■ Manual

(Form Feed +

■ Continue

■ Reset

(Continue +

■

ALT

~

Menu

■ Tray Select

(Menu+

H

Item

■

MP

Tray Size

(Item+

Alt)

■ ’r

■

~

(~+

Alt)

■ Enter

Alt)

Ah)

Switches the printer between on-line and off-line mode. While in

SelecType

mode, this button exits

SelecType

mode.

When the printer is off line and the Form Feed light is lit, pressing this button prints out data in the printer’s memory.

Enters directly (short cut) to manual feed; this setting is the same as the manual setting in the PRINTING MENU of

SelecType.

Pressing this button when the Continue light is flashing clears an error.

Enter to reset operation; LCD displays “RESET”, printing stops, and the input buffer of current interface is cleared. If the RESET button is depressed continuously after “RESET” is displayed, the message displayed on the LCD changes to “RESET ALL” (about 5 seconds), and the printer enters to WARM BOOT operation; printer clears all RAM.

Modifies the function of other buttons. Enters

Changes the menu in

SelecType

mode.

SelecType

mode.

Enters directly (short cut) to the paper tray select setting in CONFIG MENU of

Enters Changes the item in

Enters directly (short cut) to the MENU of

Changes to the next available option of Changes to the previous available option of

Sets available option of

SelecType.

SelecType

SelecType.

mode.

SelecType mcde.

SelecType.

NIP

TRAY SIZE setting in TRAY

SelecType.

Rev.

A

1-21

General Description

1.4.2

SeIecType

The

SelecType

functions, such as printing test pages, selecting a paper size, and changing the printer’s configuration. Enter

Table 1-12 shows the

Functions

function on the printer control

SelecType

mode by pressing the

options.

panel

allows the user to control most of the

Menu

or

Item butkm.

EPi-90tM Smme“

h4iwwal

pMter’s

Menu

(Chan%~g#)MENU

PRINTING

LJ4

[Ps) ESCP2

Table 1-12.

(chan@ ~~~EM

COPIES

PAGE SIZE

ORIENTATION MANUAL FEED

RITsch

FONT SRC FONT NUMBER

PITCH HEIGHT

SYMSET

FORM

SRC

SYMSET’

DEST

—

Font

Pitch

Condensed

T-Margin Text CG

country

Auto CR Auto LF

Zero Char

Bit

SYMS~

Table

lrns~

SelecType

button)

1 to 999

A4, A3, A5, B4, B5, LT, LGR, HLT, LGL,

GLT, GLG, EXE, F4, MON, C1O, DL, C5,

IB5

PORT, LAND

OFF, ON OFF, LIGHT, MEDIUM, DARK

RESIDENT, CARTRIDGE, DOWNLOAD

O to (available)

0.44 to 99.99

4.00 to 999.75 PT. (Step 0.25) Roman-8,

ISO, IBM-US,

PcE.EuroPs, PcTk437, WiAnsi,

WiE.Europe, WiTurkish,

Velnternati,

PsMath, VeMsth,

ASCII,

Norwegl, French2,

5 to 128 LINES

o

o to

— Courier,

Rornsn-T, sane-l-l, Prestige, Script 10

On, Off

0.40 to

1 to (Available) LINES

PcUSA, PcCanFrenc, PcNordic, Pc.E.EuroPs, BPBRASCII,

USA, France, Gerrnsny, UK, Denmark Sweden,

DenrnarlQ, Spain2,

Legal ON, OFF ON, OFF

o,

Dark, Light, BarCode

Functions

Available Options

(Cha

ad by

(M%y

CPI

ECM94-1

VeUS,

Swedis2,

to

3199

Rornsn,

CPI,

12

CPI,

1.50

Inch (step 0.05)

Italic,

($

PcMultilin, PcPortuguss,

Itaty,

Spainl, Japan, Norway,

~or 4

button)

ENTER

(step 0.01)

,8859-2 ISO, 8859-9

IBM-DN, PcMuitiiing,

MsPuMishin,

PiFont, Legal, UK, ANSI

Italian, Spanish, German,

Windows

Orator S,

15

CPI,

LatinArneric, Korea,

button)

DeskTop,

Math-8,

sane

Ser

Prop

PcTurk2,

B@bimnP

PsText,

.;, ,,

62

c

.

,.;

o

* With option

1-22

Rev. A

EPL-9000

Service Manual

General Description

Table 1-12.

Menu

(Chan~~g{)MENIJ

FX

GL2

JOB

EMULATION

SelecType

(Chang~ $%EM

Font

Pitch

Condensed T-Margin Text CG Table

Country

Auto CR Auto LF Zero Char

Bit Image GLMODE SCALE OFF, AO, Al , A2, A3 ORIGIN PEN END JOIN

PENO PEN1 PEN2 PEN3 PEN4 PEN5 PEN6 PAGE PROTECT RESOLUTION

TIMEOUT

PARALLEL

SERIAL

L/T’

AUX*

Functions (Continued)

Available Options

button)

(Changed by? or $ button)

(Set by ENTER button)

Courier, Roman, Orator S, Saris Ser, Prestige, Script

10

CPI,

12

CPI,

15

ON, OFF

0.40 to 1.50 Inch (step 0.05) 1 to (Available) LINES

Pc

USA, Italic,

PcCanFrenc, Pc.E.Europe, BpBRASCll,

USA, France, Germany, UK, Denmark, Sweden, Italy, Denmark2, Spain2,

ON, OFF ON, OFF

o,

(j)

Dark, Light, BarCode LJ4GL2,

CORNER, CENTER 0, 1,2,3,4,5,6

BUIT, SQUARE, TRIANGULAR, ROUND

MITERED, MITEREDBEVELED, TRIANGULAR, ROUND, BEVELED, NONE

0.05 to 5.00 mm (step 0.05)

0.05

to

5.00 mm (step 0.05)

0.05 to 5.00 mm (step 0.05)

0.05 to 5.00 mm (step 0.05) OFF, A4, A3, LT, LGL 600,300 5 to

300

LJ4, FX, ESCP2, PS*,

PS&FX*, PS&ESCP2*, PS&GL2*

LJ4, FX, ESCP2, PS*,

PS&FX*, PS&ESCP2*, PS&GL2*

LJ4, FX, ESCP2, PS*, PS&FX*,

LJ4, FX, ESCP2, PS*,

PS&FX*, PS&ESCP2*, PS&GL2*

PcMultilin, PcPortugues,

PcNordic, PcTurk2,

Spainl,

GLIike

PS&ESCP2*, PS&G12*

CPI,

Prop

BpAbicomp

Japan, Norway,

LatinAmeric

GL2, PS&LJ4*,

GL2,

PS&LJ4*,

Rev. A

1-23

General Description

EPL-WOO -Joe Manual

Table 1-12.

Menu

(Chan ~:~)MENIJ

!

TRAY SIZE

CONFIG

PARALLEL SPEED

SERIAL

(Chanx t#%EM

MP TRAY SIZE

STD

SIZE

OPT SIZE*

MP MODE MP TRAY

STD

TRAY OPT TRAY* SIZE IGNORE AUTO CONT

STANDBY DISABLE, ENABLE AUTO SENSE TOP

OFFS=

LEIT’

OFFSET TONER TONER LIFE

PAGE COUNT

SelecType

61-D SERIAL TYPE

WORD LENGTH

BAUD RATE

PARITY

STOP BIT DTR XON/XOFF DSR

SelecType

button)

INIT

Functions (Continued)

Available

(Cha

ad by~or~ button)

(%%y

A4, A3, A5, GLT, GLG,

ENTER button)

64,65,

EXE,

165

A4, A3, %,

GLT, GLG,

64,65,

EXE,

105

A4, A3, A5, GLT, GLG,

64,65,

EXE,

165

MANUAL, 1ST, EXT

UNLOCK LOCK

UNLOCK, LOCK

UNLOCK, LOCK OFF, ON OFF, ON

ON, PARALLEL, SERIAL, (L/T),

o

to

99

oto150

E-’’’*F,

E’”-

F,

o to 99999999 —

FAST, SLOW ON, OFF

RS232C,

RS422 8,7 9600,19200,38400,57600, 300,600,

1200,2400,4800 NONE, EVEN, ODD 1,2

ON, OFF ON, OFF OFF, ON

Optione

LT, LGR, HLT, LGL,

F4, MON, C1O, DL, C5,

LT, LGR, HLT, LGL

F4, MON, CIO, DL, C5,

LT, LGR, HLT, LGL,

F4, MON, C1O, DL, C5,

E-’

F, E** F, E* F,

(AUX)

“

With option

1-24

Rev.

l.’

,..

@

A

EPL-9000

Service Manual

Table 1-12. SelecType Functions (Continued)

General Description

Menu

(Chan

TEST

e&g#)MENU

1!

(Chang~ ~~~EM

STATUS SHEET

button)

LJ4 FONT SAMPLE

ESCP2

FONT SAMPLE —

FX

FONT SAMPLE — FACT SHEET

RITech

TEST PAGE —

PS

STATUS SHEET* — PS FONT SAMPLE*

PS

FACT SHEET* CLEANING PRINT — CLEANING EXEC

“

With option

1.4.3 Service Mode

This printer has four service modes as follows:

Available Options

(Changed by ~ or $ button)

(Set by ENTER

— —

—

— —

—

button)

■

Hexadecimal Dump Mode

■

Language Setting Mode

■

Factory Service Mode

■ EEPROM Format

1.4.3.1

Hexadecimal Dump Mode

The hexadecimal dump mode is a useful tool in trouble shooting data control problems. To enter hexadecimal dump mode, turn on the printer while holding down the Form Feed button until “HEX DUMP MODE” is displayed.

1.4.3.2

The

sheet. To enter language setting mode, turn on the printer while holding down the until “CONFIG LANGUAGE” is displayed. The options are changed by pressing the ? and buttons and are set by pressing the

ENGLISH,

Language Setting Mode

language setting mode allows the user to specify a language for panel displays and the status

Menu

button

~

Enter

button. Available options areas follows:

FRAN~AIS, DEUTCH,

ITALIANO,

Esptiol,

SVENSKA, DANSK, NEDERL,

SUOMI,

PORTUGUI%

Rev. A

1-25

Genaml Descri@ion

1.4.3.3 Factory Service Mode

EM-W(W Sarvrca

“ Manual

The factory service

enter factory service mode, turn on the printer while hoMing down the On Line, Continue buttons until “PRODUCT MENU” is displayed. The Table

1-13.

mode

is a useful tool for service people. This mode is not available to users. To

t%ctory

seMce settings am shown m

Table 1-13. Factory Service Mode

Menu

(Chan CMJ&MENU

%

VERSION

PRODUCT

(Changed $%EM

CODE ROM FONT

ROM

LL ROM (Local Language ROM)*

PS

ROM

(EPSONScript

Module ROM)*

PCOUNT PCOUNT TCOUNT TCOUNT

JCOUNT JCOUNT

CLEAR

button)

Available

(Chan

ad by

(Set$y

(Diaplayed veraion)

(Displayed

(Page counter value

(Page

(Note 1)

(Toner left counter clear) (Jam (Jam counter clear)

veraion)

counter

munter

ciear)

value

Optione

~or$

ENTER button)

diaplayed)

dieplayed)

Fotm

Feed, and

button)

.

(~

. .

* With option

Note 1:

This counter value is

leftoftoner

weight

(~grarns)

in imaging cartridge.

1.4.3.4 EEPROM Format Mode

EEPROM format operations are required only when the video EEPROM is replaced and these operations are specified m the accompanying documentation.

Defaults for the

Turn on the printer while holding down the On Line, Continue, and Menu buttons until

“FORMAT=EPL9000” is displayed.

EEPROM

format functions can be written to EEPROM as follows:

mntroller

board

(C135 MAIN)

or

c

. .

1-26

Rev. A

EPL-9000

Service Manual

General Description

1.4.4 Display of Messages

This printer displays three types of messages on the LCD: status messages, error messages, and

power on messages.

1.4.4.1 Status Messages

The

LCD panel normally indicates the printer’s status and the software mode.

Table 1-14. Status Messages

1

SELF TEST Internal self test RESET ALL RESET Resetting RESET TO SAVE

WARMING UP Warming up TONER FULL?

STANDBY

READY Normal condition FORM FEED

1.4.4.2 Error Messages

If any of the following errors occurs, it will be displayed on the LCD panel. The error must be

cleared immediately using the measures shown in the following table.

Message

Warm boot

SelecType

Press the RESET

Toner counter value is low

Power down

Form feeding

is changed while Form Feed light is on.

mode

status

button to reset.

Table 1-15. Error Messages

Message

PAPER JAM

FEED JAM

PRINTER OPEN INSERT IMAGING

CRTG

INSERT PAPER TRAY MANUAL FEED

PAPER OUT

TURN PAPER

PAPER SET

PRINT OVERRUN

MEM OVERFLOW

Status

A paper jam has occurred.

A paper jam has occurred

feed process. press the Continue button. Cover is open.

No imaging cartridge Insert the imaging cartridge

No paper cassette Select manual feed.

No paper is left in either the standard tray or the optional cassette.

Paper

inserl

direction is bad

The paper in the selected tray is different from the paper size Continue button. selection.

Engine speed faster than print

image processing.

Data has filled the buffer.

in the

Open the cover and

jammed paper. Then close the cover.

Remove the jammed paper. Then

Close the cover.

Insert the paper cassette

Inserl

paper and press On Line

button. Load paper in paper tray or

optional cassette.

Rotate and insert paper. Load proper paper and press the

Press the Continue button.

Confirm and press the Continue button. And add optional SIMM.

Measures

remove the

Rev.

A

1-27

General Description

EPL-_ Serv#ce

‘ Manual

Table 1-15. Error Messages

Message

ILLEGAL CART

INSERT CART

REMOVE CART

SERVICE REQ.

Xxxxx

1.4.4.3 Warning

If any of the following warnings occurs, it will be displayed on the LCD panel.

The inserted cartridge is not

Cartridge was removed while Form Feed

light was on or the printer was on line.

Cattridge

light was on or the printer was on line. Printer problem.

was inserted while Form Feed

Mesaages

status

sLVPOrted.

(Contined)

Measures

Remove cartridge and press

Continue button. Reinstall cartridge and press

Continue button. Remove

Continue button.

SeNice

cartriige and press

required.

Table 1-16. Warning Messages

Message

CHECK PAPER SIZE

IMAGE OPTIMUM

The paper in the selected tray is

different from the paper size chosen when SIZE IGNORE = OFF setting.

Because of insufficient memory, the

printer uses a lower print quality.

status

Press the Continue button.

Measures

1-28

Rev.

c

A

EPL-9000

1.4.5

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 SelecType menu “AUTO SENSE”.

Service Manual

Printer Sharing

General Description

1.4.5.1

When the printer is in port fixed mode, only one interface port is active. Data from other ports is ignored.

Port Fixed Mode

Memory

Figure 1-10. Port Fixed Mode

❑

Rev.

A

1-29

General

Deecriptkm

EPi-&MO Service Manual

1.4.5.2

It is possible to allocate each mode to parallel, serial, L/T, and

Auto Sense

Mode

AUX. The

entire memory will be

allocated to the channels that are used. me interface that receives the data&twill print first.

Mode Assignment

ESC/P2

mode

s

‘1

B

‘Y

FX mode

GL2 mode EpsonScript

mode

b

ESCIP2

FX mode

EpsonScript

mnde

------

r

ESCIP2

FX mode

GL2 mode EpsonScript

made

mode

I

Y

4

t’

t-----

\

Auto Sense

L.. m-,

d

‘k

Memory

iA

I

User 1

User 2

w

User 3

D

Parallel

4

Mode Assignment

.i?Vtlal

-

Mode Assignment

UT

I

J.

@

I

User 4

Mode Assignment

AUX

ESCIP2

mode

.

FX mode

GL2 mode

Input buffer

Figure 1-11. Auto Sense Mode

I

1-30

Rev.

A

EPL-9000

Service Manual

General Description

1.4.6 Emulation

This section describes the emulation mode switch function.

1.4.6.1 Emulation Switch by SPL

The two types of emulation switch functions described below are available on this printer. Together they are referred to as

EJL: EPSON

This is EPSON’s in Figure 1-12.

PJL:

Printer Job Language

This is HP’s original language, which is available with the LaserJet 4 printer.

It is able to skip among various destinations, as shown in Figure 1-12. The precise specifications for

this language are based on the HP LaserJet 4.

The

figure below shows three types of mode switching.

Neither

or

EJL

nor

PJL.

Then they enter another mode.

Mode Switch Functions

SPL

(Shared Printer Language).

Job Language

origiml

PJL

language system. It is able to skip among various destinations, as shown

switches the mode directly. They first exit the current mode and return to

LJ4

EJL

I

‘x

I

ESCP2

Figure 1-12. Emulation Switch by

SPL

I

1.4.6.2 Intelligent Emulation Switch

The Intelligent Emulation Switch depending on the data sent from the host computer through one of the interface channels. It is able to switch between EPSON Script and other modes as shown in the figure below.

mPS&LJ4

(IES)

automatically switches the emulation switch mode,

EPSONScript

I

Rev.

Figure 1-13. Intelligent Emulation Switch

A

1-31

General Description

1.4.7 Bi Resolution Improvement Technology

The

EPL-9000

to improve print quality at 600 the image data is reassembled to improve print data.

printers have

BiRITech

dpi and

(Bi Resolution Improvement Technology), which is designed

300

dpi.

By this method, the dot map data extracted from

EPL-WXM Serwce

“

Manual

The

main improvement of this technique is m

effective when the dot map data fits the development characteristics of the printer mechanism well.

It is therefore necessary to set appropriate values in

minating “jjggies”

eli

SelecType.

in diagonal lines. It is most

1 inch

-

1

inch

/

I

600

II

R

c

. . .

(When 600

Figure 1-14. Effect of

Note:

The

When the toner density of area A is almost the same as that of area B (as shown m the figure below), the achieved when it is difficult to distinguish the shape of area A from that of B.

BiRITech BilUTech

depends on the toner condition, it should be adjusted when the imaging cartridge is replaced or after the imaging cartridge is used for a long time.

following settings are available in

is not as effective for printing a mesh pattern or gray scale. In such cases,

must be set to OFF. (’The

RITech

setting is at its optimum setting. In other words, the optimum setting is

DPI

printing)

default setting is MEDIUM.) Since the

SelecType

Level for

BiRITech

RITech:

DARK, MEDIUM, LIGHT, OFF.

J3iRlTech

effect

A

c“:

1-32

Figure 1-15.

RITech

Adjustment

Rev.

-.

“:.

.

.,, .

c)

A

EPL-9000

Service Manual

General Description

1.4.8 Optional Memory

If you have difficulty printing complex, graphics-intensive pages or if you regularly use downloaded fonts, you may need to install the optional SIMM sets on this printer’s controller board. The printer’s controller board comes with 2.0 MB of RAM installed.

By installing additional

SIMMS,

you can increase the printer’s memory to a total of 64 MB,

including the resident memory. EPSON supplies several types of memory option (SIMM). Other

SIMMS

can be purchased from

other vendors. Be sure the SIMM meets the requirements listed below.

■ 72-pin type

■ Capacity is one of the following: 1,2,4,8,16,32 MB

H

Access speed is less than 70 ns.

9 Within the

following dimensional size (H x W x D)

36 mm (1.3 inches) x 108 mm (4.3 inches) x 10 mm (0.4 inches)

Rev.

A

1-33

General Description

1.5 MAIN COMPONENTS

EPL-$UXM ~

“

h4mual

To simplify maintenance and repair, the easy removal and replacement. The main components are:

c1

C135

MAIN board

Q

C8232@

Control panel

c1

a

MCU PWB LVPS

L1

HVPS board

o

ROS

Q c1

Fusing unit Drive unit

Q

Imaging cartridge

a

Housing

a

Paper tray

a

Lower paper cassette unit (optional)

c1

I/F

unit

Control

(Optkd)

board

Panel

main components of the

Video controller Optional LocalTalk module

Engine controller circuit board Low-voltage supply arcuit unit

High-vohage

Optical unit

MCU PWB Board

LVPS

Unit

arcuit

board

supply circuit board

C135

MAIN Board

\

I

EPL-9000

have been designed for

Board

I

Fusing Unit

Drive Unit

Figure 1-16. Component Layout

. .. .

.

“ -/

c’

1-34

Rev.

A

EPL-9000

1.5.1

The 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 19.2 MHz RISC CPU MB86930 (location: ICI) is used, and the following memory chips and custom memory space.

H

Memory chips

Service Manual

C135

MAIN Board

C135

MAIN board is a video controller board. The primary functions of this board are

ICS

General Description

(SPARKlite)

are assigned to the 4

GB

Code ROM: four Font ROM: two

4M-bit

DRAM

16K-bit

■

Custom

ASIC E05A91 (IC7) ASIC E05A92 (IC18) ASIC E05A93 (IC17)

9

Others

RS-232C interface driver/receiver MAX202

RS-422

Reset IC

EEPROM (IC8)

ICS

interface driver/receiver MC34050

M51953BFP (IC23)

E05A93 (IC17)

4M-bit EP-ROM (IC5,

8M-bit

mask ROM (M80A76:

(IC24,

25,26, 27)

E05A92 (IC18)

\

t

rll

I

/[

111

CPU

Icl

❑ ✌✏✌

D

CG CG

ml

~..

I

E05A91

lk

‘c’

1!

lm-;”

6,14, 13) or two

IC30,

(IC19)

(IC4)

ROMs

8M-bit

M80A77:

/\\

------- -. ------ ---

I

1

---”---

mask ROM

IC29)

I

:

(IC16,

15)

Rev.

I

EEPROM (IC8)

Figure 1-17.

A

C135

MAIN Board

I

DRAMs

1-35

Ganaral

Description

EPL--

Sarv&a Msnua/

1.5.2

The C8232&

Apple”

ti

C8232&k I/F

Maantosh@

Main Chips

85C30

(IC3) 26LS30 26LS32 (IC2) NJU7660 (IC4)

(ICI)

Board

I/F board has the LocalTalk interface circuit, which allows this printer to

computers.

h

u

I-J

(O@”onal

The LocalTallc

26LS30

(1;1)

. .

,.” - . .

1.

,

a

9

. . . . . . .

**. *

26LS32

(IC2)

LocalTalk Module)

ccmnect

module is available for a LocalTalk connection.

NJU7660 (IC4)

●

*

,

*

,

●

,

* ,

-------1

●

.-’,

,, ,,

. . .

85C30

([C3)

, , .

to

,...:

c’

Figure 1-78.

C8232*

l/F Board

1.5.3 Control Panel

The

control

printer (e.g., displaying error messages or printer operation status).

panel includes a 20

column

x

1

row

LCD

panel, which provides many functions for the

~A3600=

o

on

L1l-M

Elf

omIFecII

MamJ81

n

rnw

R*SU

‘wp=q’-~’

ALT

lraj%+ea

MPTrw

Item

Sue

“

Figure 1-19. Control Panel

A

T

‘i

Emu

❑

1-36

Rev.

A

EPL-9000

Service Manual

General Description

1.5.4

This is the engine controller board. It consists ofanpPD782388-bit CPU (including a MASK ROM)

and a gate array. The board controls laser synchronization, laser beam pulse width, and power.

MCU PWB

Board

CPU

/

Figure 1-20.

scannin

g (the polygon mirror drive motor), image

-

uPD78238

-,

MCU PWB

(Ul)

ASIC

(U2)

SMA7029M

Board

1.5.5

The converts the AC line voltage into board, the 120V type and 220/240V type. The difference between the two circuits is only in the input section.

LVPS

Unit

unit is the low-voltage supply unit, which consists of a switching regulator circuit. It

+24V

and +5 VDC voltages. There are two types of power supply

Figure 1-21.

LVPS

Unit

Rev. A

1-37

General Description

1.5.6

HVPS

The

HVPS

charge bias, and image transfer bias.

Board

is the high-voltage supply circuit board. It

rmnverts

EK4UUM Service Manual

the development bias,

OFC

drum

Do not touch VRl, VIW, volumes are for

factoy

YR5& VR53, VRIOl

setting only.

VR52 VR51

I

“ #

“’R1-’

ROS

1.5.7

The

ROS

which drives the polygon mirror for laser generated by the laser diode is conducted to the as well as several mirrors and lenses, to

Unit

unit consists of the laser diode (semi-conductor laser), the mirror motor (

~–,

figure

1-22.

scannin~

aeate

HVPS

and several mirrors and lenses.

OPC

a latent

and

WU02

on the

VR53 VRIO1

HVPS

board. These

/

k

no

Board

drum surface by way of the polygon mirror,

electrwphotographic

d

E(

VR102

image on the drum.

scanner motor) The laser beam

y\

.Y’;3

(.’

1-38

Figure 1-23.

ROS

Unit

Rev.

A

EPL-9000

Service Manual

General Description

1.5.8 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 1-24. Fusing Unit

1.5.9 Drive Unit

The drive unit consists of the main motor and a series of gears and clutches. It drives the paper transport rollers, OPC drum, sleeve roller, fusing roller, and some other mechanisms.

Figure 1-25. Drive Unit

1.5.10 Imaging Cartridge

The

core mechanisms of the printing process, such as charging, developing, and cleanina are

integrated into this imaging

cm

Rev.

Figure 1-26. Imaging Cartridge

A

1-39

Chapter 2 Operating Principles

Table of Contents

2.1 ENGINE OPERATION

2.1.1 Print Process. . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1.1.1

2.1.1.2

2.1.1.3

2.1.1.4

2.1.1.5

2.1.1.6

2.1.1.7

2.1.1.8

Drum Charge. . . . . . . . . . . . . . . . . . . . . .

Laser Exposure. . . . . . . . . . . . . . . . . . . .

Development. . . . . . . . . . . . . . . . . . . . . .

Image Transfer. . . . . . . . . . . . . . . . . . . .

PaperSeparation . . . . . . . . . . . . . . . . . .

Fusing. . . . . . . . . . . . . . . . . . . . . . . . . . .

Drum Cleaning . . . . . . . . . . . . . . . . . . . .

Quenching. . . . . . . . . . . . . . . . . . . . . . . .

2.1.2 Paper Feed Mechanism. . . . . . . . . . . . . . . . . . . .

2.1.2.1

2.1.2.2

2.1.2.3

2.1.2.4

2.1.3 Engine

2.1.3.1

2.1.3.2

2.1.3.3

2.1.3.4

2.1.3.5

2.1.3.6

2.1.3.7

2.1.3.8

2.1.3.9

Cassette Feed. . . . . . . . . . . . . . . . . . . . .

Multi-Sheet Inserter Feed (Manual Feed)

PaperTransport . . . . . . . . . . . . . . . . . . .

Paper Exit..... . . . . . . . . . . . . . . . . . . .

Control. . . . . . . . . . . . . . . . . . . . . . . . . . .

Main MotorFunctions and Control . . . . .

REGl. Sensor and Exit Sensor . . . . . . . .

Fuser Control . . . . . . . . . . . . . . . . . . . . .

Scanner Motor Control . . . . . . . . . . . . . .

LaserDiode Drive. . . . . . . . . . . . . . . . . .

Bias Control. . . . . . . . . . . . . . . . . . . . . . .

Fan Motor and Chute Fan Motor Control

PaperSize Detection . . . . . . . . . . . . . . .

Imaging Cartridge Sensor. . . . . . . . . . . .

2.1.3.10 Power Supply Circuit Function and Safety Protection

. . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . .

2-1

2-2 2-3

2-3 2-4 2-4 2-5 2-5 2-6 2-6 2-7

2-8 2-1o 2-11 2-13 2-14 2-15 2-15 2-16 2-17 2-18 2-19 2-20

2-21 2-22

2.2

VIDEO CONTROLLER OPERATION

2.2.I

C135MAlN Board Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23

2.2.1.1

2.2.1.2

2.2.1.3

2.2.1.4

2.2.1.5

2.2.1.6

2.2.1.7

2.2.1.8

2.2.1.9

ResetCircuti-. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

BusControlCircuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Interrupt Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DRAM Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Parailel

lnterFaceCircuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

RS-232C Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

RS-422Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

LocalTalkCircuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Optional Type-B Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.2.1.10 Video Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.

2-23

2-26

2-26 2-27 2-27 2-28 2-28 2-29 2-29 2-29 2-30

List of Figures

Figure 2-1. Main Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2-2. Print Process

steP.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

2-1

Figure 2-3. Print Process Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . ....:.... 2-2

.

Figure 2-4. Drum Charge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . .2-3

Figure 2-5. Laser Exposure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Figure 2-6. Development . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..............2-4

Figure 2-7.

lmageTransfefi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Figure 2-8. Paper Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

“

Figure 2-9. Fusing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. .............2-5

Figure 2-10. Cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. ..2-6

Figure 2-11. Quenching. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6

Figure 2-12. Paper Feed Procedure Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Figure 2-13. Paper Feed Mechanism Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Figure 2-14. Paper Cassette and Feeder Assembly . . . . . . . . . . . . . . . . .. ....2-8

Figure 2-15. Paper Size Detecting . . . . . . . . . . . . . . . . . . . . . . . . . . .........2-8

(1)

Figure 2-16. Printing Timing Chad

Figure

Figure 2-18.

2.17.

Pfinting

MSI

Timing chart (2) . . . . . . . . . . . . . . . . . . . . . ...........2-9

Feed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . “ “

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

2-10

Figure 2-19. Registration Mechanism (1). . . . . . . . . . . . . . . . . . . . . . . . .....2-11

Figure 2-20. Registration Mechanism (2). . . . . . . . . . . . . . . . . . . . . . . . .....2-11

Figure 2-21. Paper Transfer Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2-22. PaperEx~Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-12

2-13

Figure 2-23. PaperExfi Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

Figure 2-24. Engine

Contro~er

Figure2-25. Main Motor DfiveCircufi. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2-26. Figure 2-27.

REGI.

Sensor and

Fuser Control Circufi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .....2-16

Figure 2-28. Temperature for Figure 2-29. Scanner Motor Figure 2-30. Laser Diode Drive Figure 2-31. Bias Control Figure 2-32. Fan and Chute Fan

Connecting Diagram . . . . . . . . . . . . . . . . . . . .

Exfi

Sensor OnlOff Timing. . . . . . . . . . .....2-15

Fuser Control procedure.. . . . . . . . . . . . .....2-16

Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . .....2-17

Circuti. . . . . . . . . . . . . . . . . . . . . . . . . . .....2-18

Circuti

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .....2-19

Control

Circufi.

. . . . . . . . . . . . . . . . . . .....2-20

2-14 2-15

Figure 2-33. Imaging Cartridge Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2-34. Power

SUPPIY Circu~.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2-35. Video Controller Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23

Figure 2-36. C135

MAIN Board

Figure 2-37. Data Flow Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Figure 2-38. Reset Figure 2-39. Bus Control

Circuti . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .” . . . ... ...2-26

Circuti. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .....2-26

Figure 2-40. DRAM Management. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Figure 2-41. Parallel Interface Figure 2-42. Figure 2-43. Figure 2-44. LocalTalk

RS-232C Circufi. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .....2-28

RS-422 Circuti . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .....2-29

Circufi.

Block

Diagra m . . . . . . . . . . . . . . . . . . . . . . . 2-23

-

25

-

27

Circufi. . . . . . . . . . . . . . . . . . . . . . . . . . . .....2-28

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .....2-29

2-22

e

(

c

-..

-

.d

:.. ;,!

List of Tables

Table 2-1. Paper Size Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .....2-21

Tabie2-2. Functions of

C135MAlN

Board Main Elements . . . . . . . . . . .....2-24

.’””~,

,/

L

EPL-9000

Service Manual

2.1 ENGINE OPERATION

Operating Principles

This section describes the function and operating principles of the

EPL-9000.

location and names of the main components for the engine.

89

//

2,

24 22

1. Pickup roller

2. Pickup solenoid

3. MSI sensor

(SL1)

(PC2)

4. Trans. chute assembly

5. BIAS transfer roll

6. Chute fan (M3)

7. Fuser assembly

8. Pressure roller

9. Heat roller

10. Exit sensor

(PC3)

11. Thermistor (THl)

12. Interlock switch

13. Erase lamp assembly

14. Fan (M4)

23

15. Raster output scanner

16. CRU SENSOR PWB

17. Main motor (Ml)

18. Paper cassette

19. Paper size switch

20. Paper-out sensor

21. Toner sensor

22. Feed solenoid

23. Feed roller

24. Turn roller

25. Turn solenoid

26.

REGI.

sensor

27. Pitch roller

28. Multi-sheet inserter

Figure 2-1 shows the

(SW4)

(PC1)

Rev. A

Figure 2-1. Main Components

2-1

Oparating Principias

2.1.1 Print Process

This

section describes the

Figure 2-2 shows the print process

print

process from drum charge to quenching.

steps, and

I

]

Figure 2-2. Print Process Steps

F@re

2-3 shows the print process diagram.

1. Drum Charge

v

2. Laser Exposure

●

3. Development

*

4. Image Transfer

*

5. Paper Separation

*

6. Fusing

●

7. Cleaning

*

8. Quenching

I

[

I

1

I

I [

1

EPL-WXM Servike Manual

. \

,

c

.,

7. Paper Separatkm

\

5. Development

9. Fusing

Figure 2-3. Print Process Diagram

\

1.

Paper Pick-up

10. Paper Exit

/

==7

-..

c

---

EPL-9000 Service Manual

2.1.1.1 Drum Charge

Operating Principles

Drum charge is the process of charging static electricity to the drum before laser exposure. The charge wire discharge to the

OPC

drum even. The charge screen between the charge wire and the

connected to the ground through the

maintain the

OPC

drum surface potential at the specified level (-310

Charge Screen

Figure 2-4. Drum Charge

zener

diode, limits the discharge to the

OPC

(Organic Photo Conductor)

drum surface potential of the

OPC

drum, which is

OPC

drum to

VDC).

1

2.1.1.2 Laser Exposure

Laser exposure is the process of creating an invisible static electricity image on the laser beams emitted from the ROS (Raster Output Scanner) Assembly. The polygon mirror is

rotated by the polygon motor (scanner motor). This is clockwise direction to produce a laser light scan (one side of the mirror produces one scan). The SOS (Start Of Scan) sensor detects the laser rays from the SOS mirror and outputs SOS signals in order to make the starting position of each line of the image uniform.

Laser emission

,JJ.L

.- -- ---

PC Drum

a

six-sided mirror which rotates in the

/’-l

-/

I

OPC

drum by

Rev.

Invisible static-

electricity image

Scanner Assembly

Figure 2-5. Laser Exposure

A

2-3

Operating Principles

2.1.1.3 Development

EPL-%NNI

Service

Manuel

The development is the process of creating a toner image on the

the invisible static toner over the magnet roll. ALso, as toner passes between the CM blade and becomes negatively charged. The magnet

controls developing by developing bias. It is ratted and charged developing bias by the magnet

roll.

Resin Sleeve

electriaty

image.

The

Development

Bias

CM (Charge Metal) blade spreads a thin, even coat of

mll

transports toner to the surface of the

~PC ~rum

~

OPC

drum by applying toner onto

tlw

magnet roll, it

OPC

drum and

CM Blade

L

I

1

L

~ Dweloprnent

Bias

/+7’

Toner

Image

Figure

2.1.1.4

Image transfer is the process of transferring the toner image created on the

developing process to paper. As the image transfer process this time, we have

transfer method instead of the no generation of because the pressure bonding of the paper with the

maintained. Reverse bias is applied to not transfer the positive toner onto the

Imsge Trsnsfer

ozone

due to

corom

corona

r

2-6.

Development

OFC

drum in the

WA

the roller image

image transfer. In the roller image transfer method, there is

discharge. Also, there is no blur of motion m image transfer

OPC

oPC

drum and the

BTR-

Drum

--@

BTR (Bias

OPC

Drum

r

Sequential Bias

Reverse Bias

Transfer Roll) is

2-4

L

Image

Transfer Roller

Figure

2-7.

Image Transfer

T-7

Rev.

A

EPL-9000

Service Manual

2.1.1.5 Paper Separation

Operating Principles

After image is transferred onto the paper, the paper is separated from the

curvature separation. In the curvature separation method, the diameter of the

designed to be small enough to separate the paper from the (discharge plate) on trans chute assembly support paper separation by discharged from paper

backside.

DETACH SAW

—

J

OPC

drum easily. And DETACH SAW

Drum

OPC

drum by means of

OPC

drum is

Figure 2-8. Paper Separation

2.1.1.6 Fusing

Fusing is the process of fixing the toner image transferred from the image transfer process on the paper. This time, we have used the heating roller method for fusing. The heating roller method is

the process of fixing the toner image using the heat roll that is heated by the heater assy. When switch on the power, the heater assembly lights up until the temperature of the heat roll becomes 147 degrees C. After the warm up, the MC PWB (Main Control Unit Printed Wiring

Board: engine controller board) controls the on/off operation of the heater, according to

signals from the thermistor.

~upwr

Thermistor

Heater Lamp

Fusing

Roller

Lower Fusing Roller

TEMP

Rev. A

Figure 2-9. Fusing

2-s

Operating Principles

2.1.1.7 Drum Cleaning

EPL-_ *vice Manual

After the image cleaning blade and collected in the used toner bottle.

2.1.1.8 Quenching

After the cleaning process, the re eliminated to ensure proper print quality drum surface is exposed to the light from the erase lamp to neutralize the potential.

transfernxi

OPC

Drum

onto paper, any remaining toner on the

Figure 2-10. Cleaning

maining

negative charges on the

fir

the next print.

During the quentig

OPC

drum is scraped off by the

drum surface need to be

OPC

process,

drum surface

the

OK

.,

c

.

OPC

Drum

+

Light

Figure 2-11. Quenching

C)j

Erase

Lamp

.

c

24

Rev.

A

EPL-9000

2.1.2

This section describes the paper feed mechanism. This printer engine has two paper feed methods: one is cassette feeding (optional second cassette feeding is the same), and the other one is manual feeding. Figure 2-12 shows the paper feed procedure diagram, and Figure 2-13 shows the paper feed mechanism diagram.

Service Manual

Paper Feed Mechanism

Operating Principles

Paper pick up by feed roll

Paper

feed bv turn

transpmtation

I

1

r

[

Figure 2-12. Paper Feed Procedure Diagram

Pressure Roller

nr[

tm

-,

”,,,

\

Paper pick-up by pickup roller of pickup

1

roll

by Upper and Lower

I

REG1.roll

roller assembly

of

REGI.

roll

assembly

J

Paper transportation by OPC drum and

Paper transportation by heat roll and pressure roll of

J

Paper exit by exit roll

Heat Roller

\l

I

\

Pinch Roller

/ / Exit Roller

//

BTR

fuser

1

J

I

/

Pick-up Roller

REGI.

Roll Upper

‘EG’”RO’’LOfl:c~Ro,,er

Rev.

A

\,

\

JnR::-ll’=

Figure 2-13. Paper Feed Mechanism Diagram

2-7

Operating Principle

EPL--

Service

Manual

2.1.2.1 Cassette Feed

This printer can use three types of paper cassette: A3 universal cassette, A4 universal cassette, and optional envelope cassette. Figure 2-14 shows the paper cassette and feeder assembly.

Paper Cassette

Feed

Roller

Turn Roller

p~-out

Assernbty

\

/

Assem

Actuator

Turn

/

=ienoid

Feed

Paper Guide

pring

&lenoid

Figure 2-14. Paper Cassette and Feeder Assembly

Paper@ut

paper is in the paper cassette, the paper supply runs out, the paper-out actuator is lowered, causing the shutter to interrupt light from the LED to the photMransistor.

driver board (MCU

conditions are detected by the paper-out sensor, located on the FEEDER

paper*ut

PWB)

that the paper cassette is empty.

actuator

TM

causes the signal to go

fir

the

papermut

I-DGH,

sensor is lifted. When the

informing the engine

PWB.

While

The paper cassette of this printer has paper guide plate and paper size detecting cam. guide of this cassette m move to fit several size papers. ‘This printer detects paper size by the paper size switch. The paper size detecting cam is rotated by moving the paper guide plate (rear). The paper size switch has four small detecting cam is detected by these four switches on/off.

Feeder

&N13

Board

mechanical switches. The rotating position of paper size

Cam

Paper Cassette

Paper

S;e

Switch

11-

Size Spring

The

paper

Figure 2-15. Paper Size Detecting

,k

,,,>.

c

. . .

2-8

Rev. A

EPL-9000

The paper stacked in the paper cassette is pushed by the feed rolls. This causes the top of the paper stack to contact them. The feed solenoid roll assembly. When the feed solenoid is on and the feed rolls rotate, the top sheet of paper is separated from the others and transported to turn rolls by friction separation.

The turn rolls send the paper supplied at the paper pick-up section (feed rolls) toward the registration section disconnects the main motor drive to the turn roll assembly. While the turn solenoid is on and the turn rolls stop, paper waits before the registration section. This causes through-put up. This printer is long between paper pick-up position and registration section. If paper pick-up is started by the trigger of the START (print start) signal, the video controller waits at paper feeding time. This timing chart is Figure 2-16.

Service Manual

(REGI.

comects or disconnect the main motor drive to the feed

roll assembly and

REGI.

sensor). The turn solenoid connects or

Operating Principles

Video l/F Signal

I

Paper Position

Video Controller Job

Total Job Time

Image processing

ISTART

h

w

Feed Rolls

REGI.

OPC

Roll

Drum

Figure 2-16. Printing Timing Chart (1)

This printer fed paper until before registration section before

controller (MC interface.

When the video controller sends

controller (MC paper to before solenoid on. Then printer starts sending paper and printing when the engine controller (MC receives START signal. The video controller process printing image between START signal sending. This timing chart is Figure 2-17. The

PRFD

signal used sequence is through put better than no used sequence.

PWB)

so that through put up. This printer add

PRFD (Pre

PWB)

before START (print start) signal of video interface signals, this printer sends

REGI.

sensor sensed position, and holds the sending paper on this position by turn

Feed) signal of video interface signals to engine

receiving

PRFD (Pre

the START signal of engine

Feed) signal of video

PWB)

PRFD

signal and

Video l/F Signal

I

Video Controller Job

Total Job Time

Rev.

A

/PRFD

I

●

Wait position

Feed

Rolls

+

Image processing

ISTART

☛

OPC

Drum

Fuser

●

Figure 2-17. Printing Timing Chart (2)

Exit

2-9

Oprating

2.1.2.2 Multi-Sheet Inserter Feed (Manual Feed)

Principles

EPL-%XW ServiGe

Mutual

This printer has a manual feed slot called

l’ihen

the pickup solenoid is actuated, the pickup rolls rotate and feed the first page.

rolls stop after one rotation.

Paper+ut

in the actuator is lowered, causing the shutter to causes the signal to go HIGH, informing the engine driver board (MC

conditions are detected by the

MSI,

the MS actuator for the

/

MSI

Tray

\

MSI

(Multi-Sheet Inserter).

MSI

sensor, located above the pickup rolls. While paper is

sensor is lifted. When the paper supply runs out, the

MSI

intermpt

I

light from the

REGI<

Roll Upper

LED

to the photo-transistor. This

PWB)

REGI.

//

The

pickup

MSI

that the MS is empty.

Roil Assembly

REGI.

Roll Lower

i

,.

.

c’

-.

Retard

Pad

Lower Chute

Figure 2-18.

MSI

Feed

REGI.

Actuator

-..

<

(

-.

2-1o

Rev.

A

EPL-9000

Service Manual

Operating

Principhs

2.1.2.3

This section describes the paper registration and paper transport. The printer detects paper inserted in the printer engine from the paper cassette or

sensor. After the

REGI.

(TOP: Top Of Paper) signal to video controller.

Paper Transport

REGI.

sensor detects the paper top edge, the

roll is rotated. This time, the engine controller (MC

Link Assembly

\

PWB)

MSI

by the

REGI.

clutch is turned on and the

sends the vertical synchronous

Roil Assembly

REGI.

Trans. Chute Assembly

Figure 2-19. Registration Mechanism (1)

MSI

Tray

1-

Retard Pad

REGI.

/

L

;011

(

Tray Link

Upper

Rev.

Retard Pad

‘OwerchuteAssemb’y

u~

Figure 2-20. Registration Mechanism

A

(2)

2-11

Opmtingl%hm$?ks

This

printer uses a contact type image

is transported to

The

BTR

and

fan. Protect of paper

fuser

by

BTR

and

OPC

drum through paper is vacuumed to trans. chute assembly side by air for chute

rnming

ja

is so that the chute fan vacuum the paper to trans. chute

side.

BTR AsS

Inlet Chute

transfkr

OPC

drum.

Chute Fan

system by

EPL-WServiCehfanual

BTR.

Registration section through paper

assembly

Pick-up

Rol

MSI

Sensor

Bottom Plate

-

1

Figure 2-21. Paper Transfer

Mechani$m

Solenoid

.’

c’

2-12

Rev.

,-.

L.

A

EPL-9000

Service Manual

Operating Principles

2.1.2.4 Paper Exit

The paper on which the toner image has been fused is fed to the output tray. The exit sensor is controller (MC PWB) detects by the exit sensor that paper has been delivered.

kxated

beyond the pressure roll and the heat roll in the paper path. The engine

Exit Roller

Rod

Figure 2-22. Paper Exit Section

Pinch Roller

Pressure Roller

/

Figure 2-23. Paper Exit Mechanism

r

Rev.

A

2-13

OperatingPrinciples

2.1.3

Engine Control

EPL-_ Sertihtanual

This section

board shows the engine

describes engine control, low voltage supply board

(HVPS). The

ROS UNIT

LD ASSY..

rl

Scanner Motor

SOB

Sensor

D

FEEDER

ASSY..

Feed

Solencid

L

I

TURN

Solenoid

Paper-out

Sensor

El

Paper Size Sensor

I---_J

Optional

FEEDER

ASSY.

Feed solenoid

l----J

Turn Solenoid

n

Paper-out

Sensor

1

Paper Size

Sensor

LJ

(LVPS),

engine is controlled by the engine controller board (MC

contrcdh?r

connecting diagram.

MCU PWB BOARD

,

1

,YPS

BOARD

!2!E@_J

CRU

SENSOR

b

-

c1

I—

d REG1.

Clutch

and high voltage supply

-

AC IN

FUSER

a

Thermal

Fuse

7

Thermistor I

I

Ii=====%

(Not

Ued)

I

2rrd

~

Toner Sensor

~ REG1.

e

Sensor EXIT Sensor MSI Sensor

?idcup

Solenoid

]

I

===7

Chute Fan

Detach Saw BTR

charge We

l—

OPC Drum

l—

1

I

Charge

l—

Magnet Fan

FWB).

Saw

Roll

Figure 2-24

J

1

I

t

1

-.s. . .

. .

G

.,

2-14

DRIVE

ASSY.

Main

Motor

r

Figure 2-24. Engine Controller

Connecting

Diagram

Rev.

A

EPL-9000

Service Manual

Operating Principles

2.1.3.1 Main Motor Functions and Control

The power of the main motor drive is used OPC drum drive, developing drive, fusing drive, and paper feeding drive. Figure 2-25 shows the motor is controlled by the CPU on the engine controller board (MC

main motor drive circuit. The main motor is a 4 phase stepping motor. This

PWB).

MCU

PWB

PIJ14

Main Motor

24VDC 24VDC

; cJ

A

4

B ~

1A

‘~

/B

Figure 2-25. Main Motor Drive Circuit

2.1.3.2

The

REGI.

Sensor and Exit Sensor

REGI.

sensor has three functions. One function of the

REGI.

sensor is to detect the top edge of the paper. This engine starts printing by detecting the signal. One function is paper size detecting. This printer detects on time of

REGI.

sensor, while paper is feeding. This time is long, while longer paper is feeding. This time is short, while shorter paper is feeding. One function is paper jam and feed jam detecting to combine for exit sensor. If the

REGI.

sensor does not turn on at paper feeding, it will be judged feed jam. The feed jam is

the

condition that a paper jam has occurred in the feed process.

If the following conditions are detected, it will be judged paper jam. The paper jam is when paper is jammed in printing process area.

■

The

REGI.

sensor or the exit sensor is on when the power is on or the front cover is closed.

■

The

REGI.

sensor or the exit sensor is not turned on/off within the specified time. (Refer to

following timing chart.)

REG1.Sensor

EXIT Sensor

Feed or Pickup Solenoid ON

m

v

E2

~

r,-

*

11.96-18.42

*

[sec.]

Rev.

E2: Cassette

Figure 2-26.

A

Feed=4.34

Optional Cassette Feed=6.33 MS I Feed=3.48

REGI.

Sensor and Exit Sensor On/Off Timing

2-15

Opereting

Principles

EPL-$UMO

Service

Menual

2.1.3.3

The

supply board receives the HEATER ROD ON signal from the engine

Fuser

Control

fuser

is heated by the heater rod.

(LVPS W) suPply

l’he

heater rod’s power is AC voltage. The low voltage

AC voltage to the heater rod, when the power supply board

amtroller

voltage is cut by interlock switch, when the front cover is open. The temperature for the thermistor, the engine controller board (MC ROD ON signal. standby mode

fuser

is detected by the thermistor. Based on the TEMP. signals from the

PWB)

controls the

fuser

temperature is 147 degrees C, normal paper printing mode is

fuser

temperature by the HEATER

152 degrees C, and envelope printing mode is 170 degrees C When paper size is set to sets the

fuser

temperature to envelope printing mode.

ine Controller Board

:U PWB)

MONARCFI,

DL,

PIJ11

13

C5,

or COM-10, the engine controller board (MC

Low Voltage Supply

Board

(LVPS)

PIJ2

1

TEMP.

AC

I

HEATER

1

ROD ON

AC

1.

board (MC

Fuser

. . . . . . . . . . . . . . . . . . . . . . . .

:

Thermistor

!

Thermostat

Thermal Fuse

L--

;

Heater Rod

PWB).

This AC

PWB)

{

~

~ ~

;

Figure 2-27.

The following figure is the temperature for the

Pauer

On

HEATER ROD ON

Temperature

182 degree C

152 w

170degrea

c

147 degree C 122 degree C

w

f

.–

Fuser

fuser

Standbv mode)

–.

,, ::

: :

,

Figure 2-28. Temperature for

Control Circuit

control procedure.

Print Starr Paper Exit

n

“

,.

Fuser

Control Procedure

.,

w

“

rsec.1

.–

. .

.

c

!,.

2-16

Rw.

‘, :,.

0

A

EPL-9000

Service Manual

Operating Principles

If the following conditions are detected, it will be judged that there is a fuser error (LCD displayed

“SERVICE REQ.

■

The warming-up period does not end within 150 sec.

■

The thermistor temperature drops to 122 degrees C.

K

The thermistor temperature exceeds 182 degrees C.

EOO03”).

The thermostat cuts power if the temperature of the fusing section rises to an abnormally high level (220 degrees C). The thermostat fuse cuts power if the temperature of the fusing section rises toanabnormallyhigh level (over 220 degrees C) and the thermostat did not move.

2.1.3.4

Scanner Motor Control

Figure 2-29 is the scanner motor control circuit. The scanner motor is driving, while the scanner

motor receives the SCANNER MOTOR ON signal. rotating speed setting signals. The printing resolution of this printer is 600

SPI1

is HIGH and

SP12

is LOW. In these settings, the scanner motor rotating speed is 8031 rpm.

Engine Controller Board

(MCU PWB)

P/J12 ~

8

SP12

9

SPI1

and

SP12 si~als

ROS Unit

,------- ----------- . . . . . . . . . . . . . . . .

Scanner Assembly

. . . . . . . . . . . . . . . . . . . . .: . . . . ., ,

---

~

:

,, ::

,,

Soanner

Motor ~

are

scanner motor

DPI

(dot per inch), then

.

I

:,

!

SPI1

SG

SCANNER MOTOR ON

RTN

+24VDC

Figure 2-29. Scanner

,, : : ::

,,

! . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . ,

,.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . :

Motor Control

Rev.

A

2-17

Operating

Pnnciplea

EPL-9tXM Sarvibe

Manual

2.1.3.5

Figure 2-30 is a laser diode drive arcuit. Laser diode emission is

VL1, VL2,

Laser Diode Drive

and

5VDC-LD)

from the engine controller board (MC

amtrolled

PWB).

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

by four signals (DATA,

.

Rx Ud

DATA

w VL1

5VDGLD

Sos

Engins Confrdler

Bead

(MCU

PWB)

MO

4

*

●

LDAasenwy

●

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Las&w

Sos aenaof

i

Figure 2-30. Laser Diode Drive Circuit

The DATA signal is the laser on/off signal. When it is LOW, the laser is allowed to emit and when

it is HIGH, the laser is stopped.

The MO is the laser emission power monitor analog signal. The engine controller board (MC adjusts the laser emission power by adjust signals, they are analog signals.

If the ~ signal is not detected, it will be judged that there ia a laser diode

If the SOS signal is not detected, it would be judged as a scanner motor malfunction.

VL2

and VLl signals.

VL2

and

VL1

are laser emission power

malfunction.

PWB)

$-?.

.,

. . .

c-

.,

@

2-18

Rev.

A

EPL-9000

Service Manual

Operating Principles

2.1.3.6 Bias Control

This section describes the bias control. A diagram of drum charge bias, image transfer bias, detach bias and developing bias control circuit is shown in Figure 2-31. These bias generate from the +24

(HVPS).

detected.

These bias cut so that +24

VDC

is cut, while the interlock switch is off by case open

VDC

on high voltage supply board

These bias are controlled by engine controller board (MC image transfer active. And, while voltage supply circuit. And while this signal is to HIGH, the image transfer roller is charged to

-0.6K VDC.

The

CS/DS:ON signal

the DETACH SAW is charged to The imaging cartridge has charged screen between charge wire for charge screen is connected 310 surface to -310

The

DB:ON

charge. The developing bias is changed by image density control volume. The developing bias is controlled

bias level (-205 V to -265

developing bias level.

24

Low

Voltage Suppry Board

(LVPS)

(rol~bias

TR+

VDC.

signal control to developing bias. While this signal LOW, the developing roller is

Interlock

VDC

>.

control. While

signal is to LOW, the image transfer roller is charged to 1.2K

control to drum charge and DETACH SAW bias. While this signal is LOW,

-1.OK VDC,

VDC zener

VDC)

by this volume. The image density is controlled so that the

Engine Controller Board

(MCU

PWB)

TR:ON,

TR:ON

and the

diode. The charge screen control potential of

24 VDC

DB:ON

TR+

CS/DS:ON

signal is to LOW, the image transfer roller is

OPC

L

PWB).

The

TR:ON

drum is charged.

OPC

High Voltage Supply Board

(HPVS)

E

●

-“”””---”-----”-:---””

●

--””””-””””-””-”’:

. . . . . . . . . . . . . . . . . . . . . . .

●

:

and

drum and

Image Transfer

b

Bias

1.2 or-O.6 K

●

Developing

r-.

Bias

-205 to -265

;..

●

DETACH SAW Bias

-1

.

●

Drum Charge

recharge

TR+

VDC

OPC

.OKVDC

b

signals are

by high

drum. The

OPC

drum

VDC

Screen

-310

VDC

Rev.

●

FG

Figure 2-31. Bias Control Circuit

A

2-19

Operating Principles

EPL~

~

Manual

2.1.3.7 Fan Motor and

The

fan motor rotates at all printing. When printing ends, the fan motor slows down. ‘l’he high voltage supply board receives FAN CONTROL signals from the engine the high voltage supply board

=

to fan during printing.

The fan rotates faster while FAN FAST ON

ON signal receive. The fan output FAN ALARM signal, while it is locked.

Engine Controller

NCUPWS)

24

VDC

FAN CONTROL

AIARM

FAN

Chuta

ti”kws

t

Fan Motor Control

after the

(HVPS)

High Voltage *@y

l%%)

●

✍✍✍✎ ✍✍✍☞ ✍✍✍✍✍✍✍✍✚

●

✍✍✍✍

. . . . .

:::

:,;

. . . . . . . . . . . . . . . . . . . . .

power is on.

sends

CHUTE FAN ON signal to chute fan and FAN

signal

receive.

✎✍✍✍✎✎✚

-o-. -x--

::

: :

--

*

--”-”””

Ihe b

contdler

CHUTE FAN ON

board

The

chute fan rotates while CHUTE FAN

Front Frame

Assembly

. . . . . . . . . . . . . . .

-n

~

-

1

motor rotates faster

(MC

PWB)

during pMtin& and

Chute

Fan

.

;

M

o

Fan

M

0

during

(HVPS)

FASI’

,*,;

,.*

c’”

Figure 2-32. Fan and Chute Fan Control Circuit

.-

c’

.-.

2-20

Rev.

A

EPL-9000

Service Manual

Operating Principles

2.1.3.8

The

Paper Size Detection

paper size in paper cassette is detected by four mechanical switches. The paper size

. . . .

. .

analog signal. Table 2-1 is lists the paper size and paper size switches functions.

Table 2-1. Paper Size Detection

Paper Size Switch

Paper Size

No paper cassette holder (Option only)

No paper cassette

MONARCH

LEGAL 13”

Japan Post Card

COM-10

LEITER:

or

A4:

Other

USA

ver.

Swl

-

OFF OFF OFF

I

OFF I OFF I ON I OFF I 0.834 to0.871

OFF OFF OFF

OFF

SW2 SW3 SW4

-

ON

.

-

OFF 0.275 to 0.293

ON

ON ON OFF OFF 1.396 to 1.445

OFF

ON

Paper Size Signal Level

O

VDC

0.554 to 0.583

1.116

to

1.680 to 1.730

1.157

VDC

VDC VDC

VDC

si~al

is

C5

DL LEGAL 14” EXECUTIVE: USA

or

B5:

Other

ver.

B4

STATEMENT: USA

or

A5:

Other

ver.

A3

LEDGER

ver.

OFF

OFF ON

ON

ON ON

ON OFF

OFF

ON ON

OFF

OFF ON

!

ON

OFF

ON ON

OFF ON

OFF OFF

1.962 to 2.015

2.814 to 2.868

1

3.098

to

3.152

3.385 to 3.433

3.671

to

3.715

4.247 to 4.276

VDC

VDC VDC

Rev. A

2-21

Operating

Principks

EPLm

“

Semce

h&mual

2.1.3.9 Imaging

The

CRU

actuator push to

CRU

switch is imaging cartridge sensor. The LD switch is laser power off switch. Laser power is

cut off at no imaging cartridge.

Cattridge

CRU

Sensor

switch and LD switch, while

LD Switch

imaging

cartridge is set to

Board

PWB

pMter. The

Figure 2-33. Imaging Cartridge Sensor

2.1.3.10 Power Supply Circuit Function and Safety Protection

This printer’s low voltage supply board used bias voltages supply, main motor drive, polygon solenoid drive. The protection.

+24

VDC

line

is cut, while interlock switch

(LVPS)

supplies +5

scanner motor drive, fan motor drive, and

VDC

and +24

(case

open switch) is off. It’s a safety

VDC. The

interlock

Low Voltage

Su@y

Board

switch

u’” ~

+24VDC

(LVPS)

~ +5VDC

LD Switctl

d~

+5VDC-LD

Figure 2-34. Power Supply Circuit

+24

VDC

is

c

2-22

Rev.

A

EPL-9000

Service Manual

Operating Principles

2.2 VIDEO CONTROLLER OPERATION

The video controller section generates the video signals for the received data. The video controller section is separate in the

C135

MAIN board and the control panel.

, ------------- ------------------ . . . . . . . . . . .

,

.

*

0

,

.

,

0

,

0

.

,

.

s

●

*

,

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Video Controller Section

C135

MAIN Board

,

0

,

;

Control

:

Panel * .

, , ,

. . . . . . . . . . . .

#

Figure 2-35. Video Controller Section

2.2.1

Figure 2-36 shows a block diagram of the

video controller, which consists of a

standard cells developed for this printer, DRAMs, ROM, and a

C135

MAIN Board Operation

C135

MAIN board. The

MB86930 (SPARKlite,

19.2 MHz, 32-bit bus)

16K-bit EEPROM.

.

,

●

.

,

0

,

0

,

0

,

m

,

o

,

.

,

*

.

: :

, , ,

s

,

.

C135

MAIN board contains the

IW3C

CPU, the

CPU

M B86930

[ICI)

ROM

16M

(IC16, 15 or

IC5, 6, 13, 14)

1 I

I

T

1

I 1

E05A91 (1C

7)

1/0 Data

I

Address

Figure 2-36.

ROM

16M

~l&9,

30)

J I

I

1

!

I

E05A92 (IC18)

C135

MAIN Board Block Diagram

EEPROM (IC8)

JI I

I

1

A

1

E05A93 (IC17)

Option

Board

~ I I

L

I

RS-232C

ADDRESS DATA CONTROL

Type B

IIF

3

Specific

IIF

Local

Talk

5

Local

Talk

Rev.

A

2-23

OperatingPrinciples

EPL-@XMSertieh4muai

Table 2-2 lists the functions of the

C135

Table 2-2. Functions of

Etement

MB86930 RISC

CPU

E05A91 ASIC

E05A92 ASIC

E05A93 ASIC

Location

ICI

IC7

IC18

IC17

MAIN board main

C135

MAIN Board Main Elements

elements.

Function

The CPU,

which operates at 19.2 MHz, manages the video

controller operation. This

ASIC

contains the

● Address decoding

.

DRAM management (refresh control,

RAWCAS

This

ASIC

●

video signal processing

.

BiRITech

● EMGTech

This

ASIC

●

Video interface

●

Bi-Parallel

●

RS-232C

6 RS-422

control)

contains the

interface

fdbwing

folbwing

functions:

. LocalTalk module control . Type-B interface card control

c

Control panel control

Two

8M ROMs or

four

4M

ROMs Two 8M ROMs BM ROM

EEPROM

>RAM WV(2O2

klc34050

IC1615 or

,C5 ~ ,3 ,4

,,

,

iC29,

30

IC9

IC8

IC24,

25,26,

27

IC19 w

These ROMs are code ROM.

These ROMs are font ROM. This ROM is This

EEPROM

local

language ROM (fonts) option.

stores the fdbwing: . Model type . Printed page counter value . Toner life counter value . Jam counter value

●

SelecType

setting

These DRAMs are used as the working area of the CPU:

input buffer, image buffer, etc. This IC changes the

This IC changes the

RS-232C

RS-422

signal level.

2-24

Rev.

A

EPL-9000

Print data and commands transmitted from the host computer via parallel, serial, or optional interfaces are read using the interrupt process of the CPU and stored in the DRAM input buffer.

Data and commands in the input buffer are processed by the CPU, which then stores the printing bitmap data (image data) in the V (video) -RAM (image buffer) in the DRAM. The size of the V-RAM depends on the available DRAM size. A “PRINT OVERRUN” occurs when the V-RAM is so small that the CPU cannot process data faster than it is transmitted to the engine controller board. If such an error occurs, the user can increase the V-RAM by using PROTECT”.

The

data format from 32 bits parallel data to serial data, and stores it in the internal temporary buffer. The temporary buffer has a which synchronizes and transmits the temporary buffer’s data to the engine controller board. The

E05A92

Service Manual

E05A91

transmits image data stored in the V-RAM to

capaaty

then manipulates the printer data according to the BiRITech and EMGTech settings.

equivalent to several lines. This is controlled by the

E05A92.

The

Operating Principles

SelecType

E05A92

setting “PAGE

changes image the

E05A92,

CPU

MB86930

(ICI)

Development

z

I

1

+

Input Buffer

E05A91 (IC7)

E05A93 (IC17)

R

l-video

-

!

4

;

‘RAM

DRAM

Figure 2-37. Data Flow Diagram

r-

1

System Area

Host Computer

s

Rev.

A

2-25

Opefating Pfincipk

2.2.1.1 Reset Circuit

The entire system (the CPU and the external devices) can be initialized if the RESET signal (CPU pin 113) are active a voltage level less than 4.25 V is detected.

simuhaneously.

This circuit uses an

M51938 IC

The

reset time is approximately 128 ms.

EPL&UIO

to monitor the supply voltage if

Service

Manual

+5V

L

+

WC

OUT

M51938FP (IC23)

c

+5V

4

RSTIN

E05A92 (IC18)

RSTOUT

T

Figure 2-38. Reset Circuit

2.2.1.2

The BE1, BE2, and BE3 signals (byte to generate the RD (read strobe) signal, WR (write strobe) signal, and READY signal.

Bus

MBS6930

Control

CPU outputs the R/W (read/write) signal, AS (address strobe) signal, and the BE(),

Circuit

CPU

MB66930

(ICI)

embles)

to the

tm—

AS

BE()-3

ncAnv

-u

●

ASIC EQ5A91.

E

*

E05A91

*

T

(IC7)

The

ASIC E4)5A91

uses these signals

.., ,

,. . . . .

G

~..!,

w

—

-

u

Ar&hnee Lb

.“.—

-.

Bus Bus

RI)

Figure 2-39. Bus Control Circuit

WR

2-26

Rev.

A

EPL-9000

Service Manual

2.2.1.3 Interrupt Control

The

ASIC E05A93

IRL3.

Then an interrupt is sent to the CPU. When the

non-maskable

process. When the

2.2.1.4 DRAM Management

The

video controller uses DRAMs for the system RAM and for the V-RAM.

dete

rrnines the priority level of the interrupt and outputs it to terminals

interrupt process. When the

IRLO-3

is any other value, the CPU process is a rnaskable interrupt process.

IRLO-3

value is

OOOOb,

Illlb,

the CPU process is a standard

Operating Principles

IRLO

-

the CPU process is a

In this printer, a standard four 512K x 8 DRAMs are mounted in locations

IC27,

providing a total of 2.0 MB. SIMM sockets number 1

(CN1)

and number 2

IC24, IC25, IC26,

(CN2)

are optional

SIMM sockets. These SIMM sockets can use 1,2,4,8,16,32 MB SIMM (32-bit bus).

The DRAMs (including optional handles the management.

The

SIMMS)

E05A91

are managed by the

ASIC

E05A91. The

outputs MAO-10 (memory address),

ASIC E05A91

RAS/CAS,

signals.

RAs

DWE

E05A91

(IC7)

CAS0,1,2,3

MAO-10

r

I

Standard DRAM

SIMM slot 1,2

(CN1,2)

and

and WE

CPU Data

Bus

~

J

Figure 2-40. DRAM Management

Rev.

A

2-27

Operating Principles

EPL-_ Sertke JMnual

2.2.1.5

Figure 2-41 shows the parallel interface circuit block diagram. Data sent from the host latched within the automatically to stop the host computer from sending additional data. The CPU signal after reading the data from the the host computer.

Parallel Interface Circuit

E05A93

by the STROBE signal.

‘ATA

——————b

E05A93,

mmputer

The

E05A93

outputs the

BUSY signal

resets the

so that the printer is ready to receive more data from

r

Latch

A

E05A93

.....:

(IC17)

1-” ”-:

Figure 2-41. Parallel Interface Circuit

2.2.1.6

RS-232C

Circuit

is

BUSY

.-’ .-

.-., ..,

.

c

.;/

This circuit uses the

RS-232C

signal level to the

The

signal level (-12

E05A93

standard cell changes serial

Parallel Data

RS-232C

receiver/driver IC

VDC

or

+12 VDC)

signal level.

-.................. ------”--”-b

4-”--”---”””’””””---”” ““-----””-”””

lhis IC

(RS-232C)

E05A93

(IC17)

Figure 2-42.

MAX202 (IC19)

to the

TI’L

signal level (O V or +5 V) or from the

converts +5

data to parallel data.

serial Data

Transmit

?;;=;e-”-

“8’-’=”=:”m”’=’-

RS-232C

Circuit

to change the signal level

VDC

to +12

VDC

and –12

MA)(2O2

(IC19)

VDC.

horn

the

TTL

c

-.,

-’

2-28

Rev.

A

EPL-9000

Service Manual

Operating Principles

2.2.1.7

This circuit uses the

RS-422

signal level. The

RS-422

signal level to the

E05A93

Parallel Data

Circuit

standard cell changes serial

1

RS-422

receiver/driver IC

‘Ill

signal level (O V or +5 V) or from the

(RS-422)

Transmit

,:.-,: =,=::::=,=:=::::=,=:=:=,,,=,,::=:=:.:,:

..... ----------””-

4----”-”-””””-----------”----”--”-

--------------

. . .

“+

Receive

,::,:=:=,

E05A93

(IC17)

Figure 2-43.

MC34050 (IC4)

data to parallel data.

to change the signal level from the

ITL

signal level to the

Serial

Data

=,=,,,,,,,,,,,,,,,,,,,=,,,,=,,,,,:=,

RS-422

*

MC34050

(IC4)

Circuit

RS-422

2.2.1.8 LocalTalk Circuit

The LocalTalk arcuit is an optional and

26LS32 (IC2).

It is controlled by The

26LS30 (IC1)

level to a LocalTalk signal level (compatible with

Cl

35 MAIN Board

The

E05A93 (IC17)

and the

E05A93 (IC17)

85C30 (IC3)

26LS32 (IC2),

1/0

Data Bus

1/0

Address Bus

C82326*

changes parallel data to serial data or serial data to parallel data.

at the C135 MAIN board.

I/F board. It uses three

which are signal level change

RS-422

C82326*

CN7

CN1

.

85C30

(IC3)

.

\

ICS: 85C30 (IC3), 26LS30

ICS,

signal level).

l/F Board (Option)

4

. . .

~

26LS30 (Icl)

. 26LS32

(IC2)

(ICI),

changes a TTL signal

LocalTalk

+

TxD+/-

~

DTR

+

RxD+/-

*

CTS

Figure 2-44. LocalTalk Circuit

2.2.1.9 Optional

This printer supports an EPSON Type-B optional interface, which is controlled by the INH and

signals from the

Rev. A

Typ+B Interfaoe

BIF

E05A93 (IC17).

2-29

Opefeting

2.2.1.10 Video Interface

The CPU transmits data from the V-RAM The then transmits it to the engine controller board. In other words, the used to transmit the image data to the engine controller board. This serial image data is called the

VIDEO signal of video interface.

Principles

ASIC E05A92

ASIC

cell converts the image data in the

maps the

SRAM

into a memory space different from the system memory. The

(in

the system RAM) to the W using the

SRAM

from parallel to serial, synchronizes it, and

EPL-WM -e

SRAM

is a temporary buffer

Mmual

ASIC E05A92.

e

The signal line of the internal video interface arcuit (the board) can be broadly divided into four groups. The first group (PRINT, gives the status of either the video controller or engine ready to communicate with each (TOP,

BD)

is the synchronizing signal for the printing operation. The third group (VIDEO) is the

serial video data signal. The fourth group

commands (from the video controller) or the status (from the engine controller) for printer

mechanism control. Except for VIDEO, PRINT, TOP, and

E05A93. This printer has

signal with the

BiRITech

ASIC E05A92.

and

other or

EMGTech

ready to start the printing

(CMD, CCLK, CBSY,

functions standard. These functions modify the VIDEO

C135

MAIN board and engine controller

CPRDY,

amtmller and indicates whether they are

operation.

and

EBSY)

is used to transfer the

BD, all

signals are controlled by

RDY, and PRD)

The

second

group

ASIC

c

“’-’)

*. . . .

L

.

,,

2-30

Rev.

A

Chapter 3 Disassembly and Assembly

Table of Contents

3.1 GENERAL INFORMATION

3.1.1 Precautions for Disassembly/Assembly. . . . . . . . . . . . . . . . . . . . . . . . . .

3.1.2

3.1.3 Small Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

3.1.4 Service

3.2 DISASSEMBLY AND ASSEMBLY

3.2.1 Housing Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

3.2.2 Electrical Component Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

3.2.3 Feeder Assembly Removal and Disassembly. . . . . . . . . . . . . . . . . . . .

3.2.4 Paper

3.2.5 Fusing Unit Removal and

TOOIS

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ChecksafierRepair

3.2.1.1

3.2.1.2 Top Cover Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

3.2.1.3 LeftCoverRemoval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2.1.4 RightCoverRemoval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2.2.1

3.2.2.2 Video Controller Board

3.2.2.3 Engine Controller Board

3.2.2.4 High Voltage Supply Board

3.2.2.5 Low Voltage Supply Unit

3.2.2.6 Earth Plate Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2.2.7 Fan Unit Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2.3.1 Feeder Assembly Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2.3.2 Feed Solenoid Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

3.2.3.3 Turn Solenoid Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2.3.4 Feed Roller Assembly Removal . . . . . . . . . . . . . . . . . . . . . . . .

3.2.3.5 Feed Roller Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2.3.6 Turn Roller

3.2.3.7 Paper-out Actuator

3.2.3.8 FEEDER PWB Board Removal. . . . . . . . . . . . . . . . . . . . . . . . .

3.2.3.9 Size Spring Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2;4.1

3.2.4.2

3.2.4.3

3.2.4.4

3.2.4.5

3.2.4.6

3.2.4.7

3.2.4.8

3.2.4.9

3.2.4.10

3.2.4.11 Bottom Plate Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 I

3.2.4.12 Control

3.2.4.13

3.2.5.1 Fusing Unit

3.2.5.2 Pressure

3.2.5.3 Exit Chute

3.2.5.4 Exit Roller

RearCoverRemova~ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

ELECCoverRemoval.

Assembiy Removal. . . . . . . . . . . . . . . . . . . . . . . . . 3-14

Transpoflation Section Disassembly. . . . . . . . . . . . . . . . . . . . . . 3-16

Link ”Assembly Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

REGI

Roll Assembly Removal. . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

Lower Chute Assembly Removal . . . . . . . . . . . . . . . . . . . . . . .

BTRAssembly Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

Front Cover Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Retard Pad Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Trans. Chute Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pick-up Roller Assembly Removal . . . . . . . . . . . . . . . . . . . . . .

Pick-up Solenoid Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . .

MSI

Sensor Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Panei

MSI

Tray

Removai

Removal.

Roller Removal

Removal

Removal.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

(C135MAlN Board) Removal . . . . . . . . 3-7

(MCUPWB Board) Removal . . . . . . . . 3-8

(HVPS

(LVPS

(PESensor Lever) Removal. . . . . . . . . . . . 3-14

Board) Removal . . . . . . . . . 3-8

Unit) Removal . . . . . . . . . . . . . 3-9

Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22

Disassembly.

. . . . . . . . . . . . . . . . . . . . . . . . 3-23

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24

3-1

s-l

3-4

.

3-5

.

3-5

3-10 3-10

3-11

3-11 3-12

3-13 3-13

3-15 3-15

3-16 3-17 3-18

3-19 3-19 3-20 3-20 3-21

3-22

3.2.5.5 Heater Removal ..........”.”””””.” o.

3.2.5.6 Heat

3.2.5.7 Thermostat Removal .. ... .. ””. .””s”

3.2.5.8 Exit Sensor Removal ..........””.””””””””” -”

3.2.5.9 Exit Actuator Removal.. ... ... ... .” ”. ””. .” ”” s”” o

3.2.6 Drive Unit and Optical Unit Removal . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2.6.1 Drive

3.2.6.2 CRU SENSOR PWB Board Removal . . . . . . . . . . . . . . . . . . . .

3.2.6.3 Erase

3.2.6.4

ROS

Roller

Removal ..........”..””””.” - o” -. ”..”

Unit Removal

Lamp

Removal ... ... ... ... .. ”.. ...

Unit Removal

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . .

o”””

o ” ””..””... o

o”””. *26

“.”..”..”””SOSO “o. 327

o.s..”.s” *28

o”” o”.

-”” -”” o””

-” .”.”

..s.

s.. .”. .s

o”””” - $29

’25

3

$~

3-30 $3°

3+

List of Figures

-28

Figure 3-1.

Figure 3-2. RemovingtheTOp Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3-3. Removing the Left Cover. . . . . . . . . . . . . . . . . . . . . . ...........3-5

Figure 3-4.

Figure 3-5. RemovingtheShield Cover. .......” . . . . . . . . . . . . . . . . . . . . . .

Figure3-6. Removingthe

Figure Figure 3-8. Removing the Figure 3-9. Removing the Figure 3-10. Removing the Figure 3-11. Removing the

Figure 3-12. Removing the Figure 3-13. Removing the Fan

Figure 3-14. Removing the Feeder Assembly . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3-15. Removing the Figure 3-16. Removing the Tum

Figure 3-17. Removing the Feed Roller Assembly. . . . . . . . . . . . . . . . . . . . . .313

Figure 3-18. Removing the Feed Roller.

Figure 3-19. Removing the Tum Roller Assembly. . . . . . . . . . . . . . . . . . . . . .

Figure 3-20. Removing the Paper-out Figure 3-21. Removing the Figure 3-22. Removing the Figure 3-23. Removing the Figure 3-24. Removing the Figure 3-25. Removing the

Figure 3-26. Removing the Figure 3-27. Removing Figure 3-28. Figure 3-29. Figure 3-30.

Figure 3-31. Removing the Pick-up Roiler Assembly. . . . . . . . . . . . . . . .....3-20

Figure 3-32. Removing the Pick-up Solenoid . . . . . . . . . .

Figure 3-33. Removing the Figure 3-34. Figure 3-35. Removing Figure 3-36. Removing the

Figure 3-37. Removing the Fusing Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3-38. Removing the pressure Roller . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3-39. Removing the

Figure 3-40. Removing the

Figure 3-41. Removing the Heater . . . . . . . ... ... ... s . . . . . . . . . . . . . . . . .

Removingthe

Removingthe Flight Cover. ....”

3-7.

Removing the C135

Rear Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ELEC

Cover . . . . . . . . . . . . . . . . -. .. ... .. ”. ....3-6 .

MAIN

MCU pm

HVPS

MclJ BOX. . . . . . . . . . . . . . . . . “ . . . . . “ . . . . “ .. ..3-9

LVPS

Ea~h

plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Unit

Feed

FEEDER PWB

Size

Link

Assembly. . . . . . . . . . . . . . . . . . . . . . . . . s .. 316

REGi RoII Assembly.

Lowerch~e

BTR

Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . .

the I%mt

Removing the Front cover

Removing

Removing the

the Retard pad

Trans. Chute Assembly.

MSI

Bottom plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . *21

the

control panel

MSi

Exit ch~e..

Exit

Roller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3A 3A

...............

Board. . . . . . . . . . . . . . . . . . . . . . . .. ..3-7

Board . . . . . . . . . . . . . . . . . . . . ... ... .$8

Board. . . . . . . . . . . . . . . . . . . . . .

Unit. . . . . . . . . . . . . . . . . . . . . . . . . .......39

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Solenoid. . . . . . . . . . . . . . . . . . . . .. ”....”

Solenoid

Cover(1) . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . .....3-12

.

. . . . . . . . . . ..”. . . . . . . s . . . . . .

A~uator

SPrin9. . . . . . . . . . . . . . . . . . . . . . .. .”...”

Assembly. . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . .

Board. . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . .. $16

(2), . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . .” ..”. ... ” . . . . . . . .

. . . . . . . . . . . . . . . . . . . .

“...........””

Sensor. . . . . . . . . . . . . . . . . . . . . . . .......321

. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Tray ... ... ... ... .... .. ”. s . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.“....”....

“.”

.. ....38

. .

35

*6

$10 ~10 $11 312

313

$14 314

315

*17 317

~lB

*18

*19

3-19

~20

~~

‘z *23

%23

’24

324

*25

~;

(“

$15 +

c“

Figure 3-42. Removing the Heat Roller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26

Figure 3-43. Removing the Thermostat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3-44. Removing the Exit Sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28

Figure 3-45. Removing the Exit Actuator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28

Figure 3-46. Removing the Drive Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3-47. Removing the CRU SENSOR PWB Board . . . . . . . . . . . . . . . . .

Figure 3-48. Removing the Erase Lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-30

Figure 3-49. Removing the ROS Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32

3-27

3-29 3-30

List of Tables

Table 3-1. Tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 3-2. Screw Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Table 3-3. Screw and Washer Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Table 3-4.

ChecksafterRepair

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

3-1

EPL-9000

Service Manual

Disassembly and Assembly

3.1 GENERAL INFORMATION

This chapter describes the disassembly /assembly procedures to be used for replacing the main assemblies of the

3.1.1 Precautions for Disassembly/Assembly

Follow the precautions below when disassembling/assembling the printer.

W

Disconnect the power cord before

■

Be sure to handle the

the printer stops printing.

w

If it is

take the following precautions:

1. Keep your hands and clothing well

2. Never touch electric terminals or high-voltage components (such as the charger and the

necessay

rollers, fan motors, etc.).

high voltage unit).

EPL-9000.

disassemblinglassembling

fising

unit carefully, because the unit remains hot for a while after

the printer.

to plug in the power cord and operate the printer after disassembling it,

awayfiom

operating or rotating parts (such as

■

Do not disassemble the imaging cartridge.

■

If the imaging cartridge is removedfiom the printer, do not place it in

■

Do not disassemble the optical unit.

■

Never turn power on if the optical unit is not installed.

■

To prevent damage to

ICsfiom

static electricity, do not touch the

direct

ICS

on the circuit

sunlight.

board or the terminals of peripheral electrical components with your hands.

■

Use

only the recommended tools to ensure safe and efficient maintenance work.

Inappropriate tools may damage the machine.

■

Never open the front cover until the main motor stops completely. Otherwise, the gears

may be damaged.

■

When transporting the printer, remove the imaging cartridge.

■

When transporting the printer a long distance, pack up it using the original packing

material.

3.1.2

TOOIS

Use the tools listed in Table 3-1 for disassembling/assembling the printer and for troubleshooting.

Table 3-1. Tools

Name

Philips screwdriver No. 2 Regular screwdriver Tweezers Soldering Round-nose pliers

iron

Commercially Available?

Yes

Yes Yes

Yes

Part No.

B743800200 B743OOO1OO B641OOO1OO B740200100 B7404OO1OO

Rev. A

3-1

Disassembly and Assembly

EPMOOO

Service Manual

3.1.3 Small Parts

In the following sections, abbreviations are used for small parts such as screws and washers. Table

3-2 lists these abbreviations. Table 3-3 lists screw and washer types.

Table 3-2. Screw Abbreviations

Abbreviation

CB

CBB

CBS(0) CP

CP(S-P1)

CPFS

Top

1.

Gross-recessed

head

@

Part Name

Cross-recessed Bind head Cross-recessed Bind head B-tite Cross-recessed Bind head

I

Cross-recessed Pan head

Cross-recessed Pan head with Spring lock washer and 1 Plain washer Cross-recessed Pan Flange head

S-tite

with Outside toothed lock washer

S-tite

Table 3-3. Screw and Washer Types

Head

1.Eind

2.Ean

b

Side

—

Body

1. Normal

2. B-tight

m

1.Plain

2.@tside toothed

washer

(assembled)

washer

@@

lock washer

Q@

1

\

I

3.Ran Elange

.

@

3s4ite

3.Spring

ok

washer

t.’

@

3-2

Rev. A

EPL-9000

Service Manual Disassembly and Assembly

3.1.4 Service Checks after Repair

Check the

Item

Operation

ROM

version

Cleaning

Packing

repaired unit using the list in Table 3-4.

Table 3-4. Checks after Repair

Location

Control Heater lamp

Test print (status sheet, font sample, feature print)

HP

Data print

oanel

font cartridge

Do all

LEDs,

LCD, and buttons function normally?

Does the heater lamp turn on normally?

Is the test print performed normall~

Do cartridge fonts print on font sample printing?

Does data print in all modes?

Is it the latest version?

Are toner and dust removed from the paper path?

Is the lens on the optical unit clean? Is the paper take-up roller clean? Is the outer surface of the printer clean?

Is the imaging cartridge removed from the printer? Is the unit packed securely?

Are accessories packed also?

Check Point

Check

I

Rev.

A

3-3

Disassembly and

AssembW

EPL#X#

Service

Man@

3.2 DISASSEMBLY AND ASSEMBLY

l“his

section describes and illustrates the procedures components of the described, except for special notes where necessary, because assembly can be accomplished by

performing disassembly in reverse.

EPL-9000. Cleanin

g is described in Chapter 6. me assembly procedures are not

3.2.1 Housing Removal

TMS

section describes how to remove the rear,

3.2.1.1 Rear Cover Removal

top,

left, and right covers.

fir

removing and disassembling the

1. Remove the option

2.

Rerrwve

3. Remove 1 CB screw

1 CBB

screw (M3

rnterface

(M3

cover.

x 8) securing the top cover.

x

8) securing the

rear cover, and remove it.

Figure 3-1. Removing the Rear Cover

. .

c’

,

3.2.1.2 Top Cover Removal

1. Remove the rear cover. (Refer to Section 3.2.l.l.)

2. Remove 4 CB screws

(h43

x

8) securing the top cover, and remove it.

Figure 3-2. Removing the Top Cover

c

3-4

Rev.

A

EPL-9000

Service Manual

3.2.1.3 Left Cover Removal

Disassembly and Assembly

1. Remove the rear cover. (Refer to Section

2. Remove the top cover. (Refer to Section

3. Remove 1 CB screw

(M3

x 8) securing the left cover, and remove it.

3.2.l.2.)

3.2.l.l.)

Figure 3-3. Removing the Left Cover

3.2.1.4 Right Cover Removal

1.

Remove the rear cover. (Refer to Section 3.2.1.1.)

2. Remove the top cover. (Refer to Section 3.2.1.2.)

3. Remove 1 CB screw

(M3

x 8) securing the right cover, and remove it.

Rev.

Figure 3-4. Removing the Right Cover

A

3-5

Disassembly and

Assemb&

3.2.2 Electrical Component Removal

11-iis

section describes how to remove the

(MCU

PWB),

fan unit.

high voltage supply board (l-lVPS), low voltage supply unit

ELEC

cover,

C135

MAIN bead,

EM.-4WtKl

Service Manual

mgine

controller board

(LVPS),

earth plate, and

3.2.2.1

1. Remove the

2.

3.

4. Remove the right cover. (Refer to Section

5. Remove 18

ELEC

Cover Removal

rear cover. (Refer

Remove the top cover. (Refer to Section

Remove theleftcover. (Refer to Section 3.2.13.)

CB

screws

(M3

to%ction32.1.l.)

3.2.l.2.)

3.2.l.4.)

x 6) securing the shield cover, and remove it.

.>..

:.:.”.

>.

c

3

;1

smnnect CN1l

Di

6.

7.

Remove 8 CB screws remove it.

Figure

and

CN12

3-5.

Removing the Shield Cover

from the

(M3

x 6) and 2 CBB screws

CBB(M3X8)

C135

MAIN board.

(l@

x 8) securing the

ET-EC

CBB(M3X8)

cover, and

. . ,.,

&

c

3-6

Figure 3-6. Removing the

ELEC

Cover

Rev.

. . .

,..

..\

-’

C./

A

EPL-9000

Sarvice

Manual

Disassembly and Assembly

3.2.2.2

1.

2.

3.

4.

5.

6.

7.

8.

9.

10.

Video Controller Board

(C135

MAIN Board) Removal

Remove the rear cover. (Refer to Section 3.2.1.1.) Remove the top cover. (Refer to Section 3.2.1.2.) Remove the left cover. (Refer to Section 3.2.1.3.) Remove the right cover. (Refer to Section 3.2.1.4.) Remove the shield cover. (Refer to Section 3.2.2.1. Steps 1 to 5)

Remove 2 CP screws Remove 3 Remove 2

CP

screws

CP

screws

(M3

x

6) securing the font cartridge connector, and remove it.

(M3

x 6) securing the font

(M3

x 6) securing the option interface cover, and remove it.

cartiidge

guide and cover, and remove them.

Remove the option interface guide. Remove 4 CB screws

(M3

x 6), 2 serial interface connector screws, and 2 small screws from the

rear shield cover, and remove it. Disconnect CN1l and

11.

12.

Remove 7 CP screws

Remove the

13.

C135

CN12

from the

(M3

x 6).

MAIN board.

OpthI

C135

MAIN board.

hterface Guide

Rev. A

Figure 3-7. Removing the

C135

MAIN Board

3-7

Disassembly and

Asssmbly

EPL-W@

&Vb Manual

3.2.2.3 Engine Controller Board

1. Remove therearcover. @eferto Section 3.2.l.l.)

2. Remove thetopcover. (Refer to Section

3. Remove theleftcover. @efertoSection32.13.)

4. Remove therightcover. (Refer to Section

5. Remove the ELECcover. (Refer to Section

6.

7. Remove 5 CBB screws

sconnect

Di

engine controller board.

connectors

(M3

P/J12, P/J13, P/J14, P/J15 P/J16, P/J17, P/J18

x

6) securing the engine

(MCU PWB Board)

3.2.l.2.)

3.2.l.4.)

3.2.2.l.)

Removal

and

P/J19

driver board, and remove it.

from the

Figure 3-8. Removing the

3.2.2.4 High Voltage

1.

Remove the rear cover. (Refer to Section 3.2.1.1.)

2.

Remove the top cover. (Refer to Section 3.2.12) Remove the

3. Remove the right cover.

4. Remove the ELEC cover. (Refer to Section 322.1.)

5.

Di

6.

7.

8.

sconnwt mnnectors

Remove the volume adjustment knob. Remove 5

kftcover. (Refer to Section 3.2.13.)

CBB

Suppty

screws

Board

(Ret%r

to Section 3.2.1.4.)

P/Jill,

P/J301, P/J305, P/J306,

(M3

x 8) securing the HVPS board, and remove it.

(HVPS

MCU PWB

Board

Board) Removal

DS, TR, and CS from the

f?

HVPS W.

x%--

(

-----

3-8

Figure 3-9. Removing the

HVPS

(?J

Board

Rev. A

EPL-9000

Service Manual

Disassembly and Assembly

3.2.2.5 Low Voltage Supply Unit

Remove the rear cover. (Refer to Section 3.2.1.1.)

1. Remove the top cover. (Refer to Section 3.2.1.2.)

2. Remove the left cover. (Refer to Section 3.2.1.3.)

3. Remove the right cover. (Refer to Section 3.2.1.4.)

4. Remove the ELEC cover. (Refer to Section 3.2.2.1.)

5. Disconnect the connector

6.

MCU PWB

7.

Remove 3 CB screws Remove the fusing unit. (Refer to Section 3.2.5.1.)

8.

board.

(M3

x 6)

(LVPS

P/Jll, P/J12, P/J13, P/J14, P/J15, P/J:

securing the

Unit) Removal

MCU

P/J17, P/J18, P/J19

6,

box, and remove it and the

MCU PWB

on the

board.

Figure 3-10. Removing the

9.

Remove 1 CB screw

10.

Remove 2 CBB screws fusing unit.

11.

Remove 2 CB screws

remove it. Remove the saddle edge H from the

12.

(M3

x 6) securing the earth wire of the HVPS board to the

(M3

x 10) securing the ROS unit, and remove connector P101 of the

(M3

x 6) and 1 CBS(0) screw

LVPS

unit.

MCU

(M3

Box

x 6) securing the

LVPS

unit.

unit, and

Rev.

A

Figure 3-11. Removing the

LVPS

Unit

3-9

Disassembly and

3.2.2.6 Earth Plate Removal

Remove the rear cover. (Refer to Section 3.2.1.1.)

1. Remove the top cover.

2.

Remove the left cover. (Refer to Section 3.2.13.)

3.

Remove the right cover. (Refer to Section 3.2.1.4.)

4.

Remove the

5.

Discomect connectom P/J301

6.

7.

Remove 1 CB screw Remove the link assembly. (Refer to Section 3.2.4.1.)

8.

9.

Remove 2

Assembiy

ELEC

CBB

screws

(Refkr to

cover. (Refer to Section 3.2.2.1.)

(M3

x 6) securing the earth wire of the earth plate on the LVPS unit.

(M3

Section 3.2.1.2.)

and CS from the HVPS board.

x 8) securing the earth plate, and remove it.

EPL-SiXM

Assembly

Service

R&mual

,

c“

-.

‘

Figure 3-12. Removing the Earth Plate

3.2.2.7 Fan Unit Removal

1. Remove the rear cover. (Refer to Section

2. Remove the top cover. (Refer to Section

3. Remove the

4. Remove the right cover. (Refer to Section

5. Remove the

6.

Discomect

7.

Remove

leftcover.

ELEC

connector

2

Cp($pl) screws (M3

(Refer to Section 3.2.13.)

cover.

P/J305

@efertoSec tion3.2.2.l.)

from the

x

30)

securing the fan unit,

3.2.l.l.)

3.2.l.2.)

HVPSboard.

3.2.l.4.)

and

remove it

-..

c

,

3-1o

figure

3=13.

Removing the Fan Unit

Rev.

A

EPL-9000

Service Manual

3.2.3 Feeder Assembly Removal and Disassembly

This

section describes how to remove and disassemble the feeder assembly.

Disassembly and Assembly

3.2.3.1

1.

Feeder Assembly Removal

Remove the paper cassette and imaging cartridge.

2. Turn the left cover over.

Place the left cover on a

3.

Remove 4 CB screws (M3 x 8) securing the feeder assembly from the back side, and remove it.

4.

Discomect

comector

SOP

cloth, so that it will not be damaged.

P/Jl15

from the FEEDER PWB board.

PIJ115

Rev.

Figure 3-14. Removing the Feeder Assembly

A

3-11

Disassembly and Assembly

3.2.3.2 Feed Solenoid Removal

Remove the paper cassette and imaging cartridge.

1. Remove the feeder assembly. (Refer to Section 3.2.3.1.)

2.

3.

Remove 2

4.

Remove 2 and remove it.

Remove the GEAR IN and GEAR OUT.

5. Disconnect

6.

7.

Remove 1

CBB

saews

CBB

screws

connector

CB

saew

(M3

x 8) securing the feeder tie plate, and remove it.

(M3

x 8) and 2 CB

P/J201

from the FEEDER

x 8) securing the feed solenoid, and remove it.

saews (M3

PWB

EPL-9(MUI

x 8) securing the feed housing (right),

board.

Service

Manual

Figure 3-15. Removing the Feed Solenoid

3.2.3.3 Turn Solenoid Removal

1. Remove the paper cassette and imaging cartridge.

2. Remove the feeder assembly. (Refer to Section

3. Remove 2

4.

Remove

and remove it.

5. Remove the GEAR IN and GEAR OUT.

6.

Di

7. Remove 1 CB sinew

CBB saews (M3

2

CBB

sconnect

screws

connector

(M3

x 8) securing the feeder tie plate, and remove it.

(M3

x 8) and 2 CB saews

P/J202

from the FEEDER

x 8) securing the turn solenoid, and remove it.

3.2.3.l.)

(M3

PWB.

01

noid

x 8) securing the feed housing (right),

3-12

Figure 3-16. Removing the Turn

Soienoid

Rev.

A

EPL-9000

Service Manual

Disassembly and Assembly

3.2.3.4 Feed Roller Assembly Removal

Remove the paper cassette and imaging cartridge.

1.

2. Remove the feeder assembly. (Refer to%ction 3.2.3.1.)

3. Remove 2

4. Remove 2 and remove it.

5. Remove the GEAR IN and GEAR OUT.

6. Remove the E-ring (left) securing the feed roller assembly, and remove it.

CBB

screws

(M3

x 8) securing the feeder tie plate, and remove it.

(M3

x 8) and 2 CB screws

(M3

x 8) securing the feed housing (right),

Figure 3-17. Removing the Feed Roller Assembly

3.2.3.5

1.

2. Remove the feeder assembly. (Refer to Section 3.2.3.1.)

3. Push the plastic face of the feed roller while holding the shaft of the feed roller assembly, and

Feed

Roller Removal

Remove the paper cassette and imaging cartridge.

remove the feed roller from the assembly.

0

Rev.

Figure 3-18. Removing the Feed Roller

A

3-13

Disassembly and Assembly

EPi-WMW

Service

Muwal

323.6

1.

2. Remove the feeder assembly. (Refer toSection3.2.3.l.)

3. Remove 2

4.

5.

Turn Roller

Remove the paper cassette and imaging cartridge.

CBB

Remove

Remove 1 E-ring

2

CBB

remove it.

Assembty

screws

(left)

Removal

(M3

x 8) securing the feeder tie plate, and remove it.

(M3

x 8)

and

2 CB

screws (I@

securing the turnroller assembly and remove

x 8) securing the

feed

housing (right)

it.

and

,,..~.,,

c“

Figure 3-19.

Removing the Turn Roller Assembly

3.2.3.7 Paper-out Actuator(PE Sensor Lever) Removal

1. Remove the paper cassette and

2. Remove the feeder assembly. (Refer

3. Remove 2

4.

Rernove2CBB ~rews

remove it.

5. Remove 1 link securing the paper-out actuator.

6. Remove thepaper~ut actuator fromhookholding it.

CBB

screws

(M3

x 8) securing the feeder tie plate, and remove it.

(M3x8)and

irnagingcartridge.

toSection

2~~ews (~

3.23.1.)

x8)

securing the feed housing (right) and

-,

. .

‘

c“

3-14

Hgure

Link

3-20. Removing the Paper-out Actuator

Rev.

@

A

EPL-9000

Service Manual

Disassembly and Assembly

3.2.3.8

1.

2.

3.

4.

5.

6.

FEEDER

Remove the paper cassette and imaging cartridge. Remove the feeder assembly. (Refer to Section 3.2.3.1.) Remove 2 Remove 2

and remove it. Remove 2 CB screws

Disconnect comectors

CBB

PWB

Board Removal

screws

(M3

x 8) securing the feeder tie plate, and remove it.

(M3

x 8) and 2 CB screws

(M3

x 8) securing the FEEDER

P/Jl16,

P/J201,

and

(M3

P/J202

from the FEEDER

x 8) securing the feed housing (right),

PWB

board, and remove it.

PWB

board.

Figure 3-21. Removing the FEEDER

3.2.3.9 Size Spring Removal

1.

Remove the paper cassette and imaging cartridge. Remove the feeder assembly. (Refer to Section 3.2.3.1.)

2.

3. Remove 2

4. Remove 2

and remove it.

5. Remove 1 CB screw

CBB

screws

(M3

x 8) securing the feeder tie plate, and remove it.

(M3

x 8) and 2 CB screws

x 8) securing the size spring, and remove it.

(M3

PWB

Board

x 8) securing the feed housing (right),

Rev.

Figure 3-22. Removing the Size Spring

A

3-15

Epson EPL-9000 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

PRECAUTIONS

SAFETY INFORMATION

REVISION SHEET

TABLE OF CONTENTS

1.2 SPECIFICATIONS

3.2 DISASSEMBLY AND ASSEMBLY