Epson L810, L850 Service Manual

SERVICE

MANUAL

EPSON

EXCEED

YOUR VISION

Confidential

SEMF14-007

Notice:

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The

•

• All effort have been made

•

EPSON is a registered trademark

General Notice:

contents

informed The

above not withstanding SEIKO EPSO N CORPORATION can assume no responsibility for any errors

of

this manual are subject to change without notice.

of

them.

2014

or

to

Other product names used herein are for identification purpose only and may be trademarks respective owners.

SEIKO EPSON

PRINTER

of

this manual may be reproduced, stored in a retrieval system,

otherwise, without the prior written permission

ensure the accuracy

of

SEIKO EPSON CORPORATIO

EPSON disclaims any and all rights

CORPORATION.

CS

QUALITY

of

the contents

ASSURANCE

of

this manual. However, should any errors be detected, SEIKO EPSON wou

N.

DEPARTME

of SEI

KO

in

those marks.

NT

or

transmitted

EPSON CORPORATION.

in

any form

in

this manual

or

by any means, electronic, mechanical,

or

the consequences thereof.

registered trademarks

of

ld

greatly appreciate being

their

Confidential

PRECAUTIONS

easyfixs.blogspot.com

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

D

ANGE

R Signals a precaution which,

DANGER Heading

s.

if

ignored, could result in serious

or

fatal personal injury. Great caution should be exercised in performing procedures preceded by

WARNING

The precautionary measures itemized below should

Signals a precaution which,

if

ignored, could result

always be observed when performing repa ir/maintenance procedures.

in

damage to equipment.

DANGER

1.

ALWAYS DISCONNECT PROCEDURES.

2. NO WORK SHOULD BE PERFORMED ON TECHNICIANS IN THEIR LINE

3.

WHEN PERFORMING TESTING AS DICTATED WITHIN THIS MANUAL, SO. WHEN THE POWER SUPPLY CABLE MUST BE CONNECTED, USE EXTREME CAUTION IN WORKING ON POWER SUPPLY AND OTHER ELECTRONIC COMPONENTS.

4. WHEN DISASSEMBLING OR ASSEMBLING A PRODUCT, MAKE SURE TO WEAR GLOVES

THE

PRODUCT FROM

OF

WORK.

THE POWER

THE UNIT BY PERSONS UNFAM

SOURCE

AND

DO

PERIPHERAL DEVICES PERFORMING ANY MAINTENANCE OR REPAIR

ILI

AR WITH BASIC SAFETY MEASURES AS DICTATED FOR ALL ELECTRON ICS

NOT CONNECT

THE

UNIT

TO A PO

TO

A VOID INJURIER FROM MET AL PARTS WITH SHARP EDGES.

WER

SOURCE UNTIL INSTRUCTED

WARNING

l.

REPAIRS ON EPSON PRODUCT SHOULD

2. MAKE CERTAIN EPSON PRODUCT HAS A PRIMARY AC

3. ALWAYS VERIFY THAT CIRCUIT

4. IN ORDER STRAPS,

5. REPLACE MALFUNCTIONING COMPONENTS ONLY WITH OT

6. WHEN PRODUCTS CONTAINING FLAMMABLE GAS

BOARDS AND/OR INDIVIDUAL CHIPS.

WHEN ACCESSING INTERNAL COMPONENTS.

HER NON-APPROVED COMPONENTS MAY DAMAGE THE PRODUCT AND VO

USING COMPRESSED AIR PRODUCTS;

TO

THAT

PROT

THE

SOURCE VOLT AGES

THE

EPSON PRODUCT HAS BEEN DISCONNECTED FROM THE POWER SOURCE BEFORE REMOVING

ECT

SENSITIVE MICROPROCESSORS AND CIRCUITRY, USE STATIC DISCHARGE EQUIPMENT, SUCH AS ANTI-STATIC WRIST

BE

PERFORMED ONLY BY

IS

THE SAME AS

RA

TING DIFFERENT FROM AVAILABLE POWER SOURCE, DO NOT CONNECT

THOSE

SUCH

AS AIR DUSTER, FOR CLEANING DURING REPAIR AND MAINTENANCE, THE USE OF

IS

PROHIBITED.

AN

EPSON CERTIFlED REPAIR TECHNICIAN.

THE

RATED VOLTAGE, LISTED

COMPONENTS BY THE MANUFACTURE; INTRODUCTION OF SECOND-SOURCE ICs

ID

ANY APPLICABLE EPSON WARRANTY.

ON

THE

SER

IAL NUMBER/RA TING PLATE.

IT

TO

THE

POWER SOURCE.

OR

REPLACING PRINTED

SUCH

IF

TO

THE

DO

OR

Confidential

About This Manual

easyfixs.blogspot.com

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

be

herein are intended for the experienced repair technicians, and attention should

Manual Configuration

This manual consists

CHAPTER I.PRODUCT DESCRIPTIONS

CHAPTER 2.0PERATING PRINCIPLES

CHAPTER 3.TROUBLESHOOTING

CHAPTER 4.DISASSEMBL

CHAPTER 5.ADJUSTMENT

CHAPTER 6.MAINTENANCE

CHAPTER 7 APPENDIX

of

six chapters and Appendix.

Provides a general overview and specifi

Describes the theo product.

Describes the step-by-step procedures for the troubleshooting.

Describes

he

t

Provides Epso n-approved methods for adjustment.

Provides preve

approved lubricants and adhesives required for servicin g the product.

Provides

the

product.

the

ry

of elec

trical and mechanical operations

YI

ASSEMBLY

step-by-step procedures for disassembling and assembling

ntive maintenance procedmes and

additional info1mation for r

cat

ions

of

the product.

the lists

epa

ir and maintenance.

ofEpson-

given to the precautions on the preceding page.

Symbols Used in this Manual

Various symbols are used throughout this manual eith

ec

ific topic or to warn

Indicat

es

that is necessary to keep the product

of the

information on a sp

or

procedure NOTE,

an action.

CAUTION, or

I

II

CAUTION

I

•

Indicates an operating

if not

that, equipment.

May indicate an condition that is nece provide additional information that is related co

mment on the results achieved through a prev

Be

WARNING messages.

an operating

str

of

the printe

aware

ictly observed, could result

ope

r.

The instructions and procedures included

of possible danger prese

of all

symbols when they are used, and always read

or

maintenan

or

maintenance procedure, practice,

rating

or

ssa

ry

to accomplish a ta sk efficiently. It may also

ce

's

maintenance procedure, practice

er

to provide additional

nt during a

proce

dur

e,

practice

quality.

in

damage to,

to

or

a spec.

i:fic

ious action.

or condition

or

condition

destruction of,

or

subject,

or

•

Indicates that,

a

Indicat standard after disassembly and before re-assembly, ity

Dl

an

operating

if

not strictly observed, could result

es

that a particular task must be carried out according to a

of

the components in question may be adversely affected.

or

maintenan

ce

procedure, practice

in

injury or loss

otherwise

or

condition

of life.

cer

tain

the qual-

Confidential

Revision Status

easyfixs.blogspot.com

~;;1w11

ASq:tembe•

Qfui@Mi

12, 2-014FITTtRe1eas

Confidential

L850

easyfixs.blogspot.com

senes

·

,

/1810

set

1es

· ·

CONTENTS

Revision

A

Chapter I PRODUCT DESCRIPTION

I. I Control Panel ........................................................................................................ 9

1.1.l Operation Buttons & LED .................................. ....................................... 9

ED

1.1.2 Buttons & L

Functions ......................................................................... 9

Chapter 2 OPERA TING PRINCIPLES

2

.1

Overvi

ew

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

2.1.l

Printer Mechanism ...................................................................................

2.1.2 Scanner Mechanism

Power

-On

2.2

2.3

Printer Initialization ............................................................................................ 15

Sequence ...........................................................................................

................................................................................. 12

11

13

Chapter 3 TROUBLESHOOTING

3.1 Overview ............................................................................................................ 17

To

3.1.1 Specified

3.1.2 Preliminary Checks .............................................................................

3.1.3 Procedure for Troubleshooting ................................................................ 17

3.2

Troubleshootin g When

3.2.1 Error List ................................................................................................. 18

3.2.2 Warning List ............................................................................................ 19

FATA

3.2.3

3.3 Troubleshooting When

3.3.1 Troubleshooting for Printer .....................................................................

3.3.2 Power Supply R

3.3.3 Ink Supply Related Troubleshooting ....................................................... 33

3.3.4 I/F Related Troubleshooting ......................

3.3.5 Troubleshooting for Scann

Chapter 4

4.1 Overview ............................................................................................................ 38

4.1.l

4.1.2 Tools ........................................................................................................

4.1.3 Preparation b

DISASSEMBLY

Pr

ecautions ..............................................................................................

ols ........................................................................................

There

is Error Display .................................................. 18

L Error............................................

Ther

e is No Err

ela

ted Troubleshooting ..................................................

AND

efo

re Di sassembly .............................................................. 38

or

Display ............................................

..

............................................ 34

er

................................................................... 35

ASSEMBLY

....

17 17

22

28 28

32

38 38

4.1.4 Making a Special Tool for CSIC

4.1.5 How to

4.1.6 Checks and

4.1.7 Protection for Transportation .................................................................. 43

Packing methods ...................................................................................... 45

4.1.8

4.1.9

Di

4.2 Disassembly

4.2.1 Paper Support Assy .................................................................................

4.2.2 Stacker Cover ............................................................................. .............

4.2.3 Document Cover/A

4.2.4 Upper Housing/Scanner Cable Cover

4.2.5 Panel Unit ......................................................................................... ....... 56

4.2.6 M/B EMI

4.2.7

4.2.8 Main Board Unit ............................................................................ ..........

4.2.9 Middle Housing ....................................................................................... 63

4.2.

IO

Disassembly

4.3

4.3.1 Adapter section ........................................................................................ 67

4.3.2 Ink Supply

4.3.3 Ink Supply Tank

4.3.4

Ink

4.4

Disassembly

4.4.1 Printhead ..................................................................................................

4.4.2 Linear S

4.4.3 Printer Mechanism .................................................................................. 77

PF

4.4.4 PF

4.4.5

4.4.6

Ink

4.4.7

ASF APG

4.4.8

4.4.9

CR

4.4.10

4.4.1 I Paper Eject Frame Assy ........................................................................ 89

4.4.12

4.4.13 Front

Unlock the Carriage .................................................................... 39

Pre

caution s before Disassembling .......................................

sassembly and Reassembly Procedure ................................................

of

Exterior Parts ............................................................................

SF Cover

Cover

............................................................................................... 58

Frame/Waste Ink Tray Assy ........................................................... 58

Pow

er

Supply

of

Supply

the

Encoder/PF Scale ............................................................................... 79

Motor ...................................................................................... ............

System Unit.. .....................................................................................

Unit. ................................................................................................. 82

Unit ................................................................................................. 83

Motor

CR

Unit. ................................................................................................. 86

Upp

er

Pap

Paper Guide Assy ........................................................................ 92

Assy

............................................................................... 66

CISS section ............................................................................. 67

Tube

Assy section ................................................................. 68

Tube

Assy section ........................................................ 70

Tank

Assy section ................................................................. 71

Printer Mechanism .................................................................. 74

cale

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

................................................................................................. 85

er

Guides ............................................................................... 91

Boa

rd .................................................. 39

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

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

40

47 48

48 48 49 50

60

74 76

79 81

L850 series/LS

easyfixs.blogspot.com

JO

series Revision A

4.4.14 Waste Ink Pad s ......................................................................................

Chapter 5

5.1 Adjustment Items and Overview ........................................................................

5.1.1 Servicing Adjustment Item List... ............................................................

5.1.2 Required Adjustments ............................................................................. 99

5.2 Adjustment by the

5.2.1 Touch

5.2.2 Touch Panel Operation Check ...........................................

5.3 How to judge print samples by using the adjustment program ........................ 104

5.3.1

5.3.2 Head angular adjustment

5.3.3 Bi-D Adjustment ...................................................................................

5.3.4

5.3.5

PG Adjustment ................................................................................................. 108

5.4

5.5 Banding Reduction System (BRS)

Correction . . .........

5.5.1 Overview ............................................................................................... 1

5.5.2 Adjustment Procedure ........................................................................... 112

5.6 Scanner Original Adjustment ...........................................................................

Chapter 6

ADJUSTMENT

Panel Unit exchange .......................................................... lOl

Panel Calibration ........................................................................

...

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

Top

Margin Adjustment ........................................................................ 104

...

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

PW Adjustment/First D

PF Adjustment ....................................................................................... 107

..

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

ot

Position Adjustment .................................... 106

Adjustment/Paper Feed Amount Profile (PFP)

...

................................ 104

..

. . . .

..

MAINTENANCE

94

96 96

101 101

10

......... I I 0

10

I

15

5

6.1 Overview .......................................................................................................... 1

6.1.1 Maintenance Error .................................................................. ............... 119

6.1.2 Cleaning ...............................

6.1.3 Lubrication ............................................................................................

Chapter 7

7.1 Exploded Diagram I Parts List ......................................................................

APPENDIX

...

............................................................... I I 9

...

19

I

20

127

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PRODUCT DESCRIPTION

Confidential

L850 series/L8JO series Rei·ision A

easyfixs.blogspot.com

1.1 Control Panel

1.1.1 Operation Buttons & LED

The

following

Button

LED* Power

tables

explain

Button/LED

Power Turns the power ON/OFF. Home Goes Crop/ Changes a display method.

Di

splay Options Help Displays the help. Menu Detailed settings. Cross Keys

(up/down/left/ right)

OK Selects. Back

Stop

Start

+

-

the

Ta

ble 1-

functions

1.

of

Operation Buttons & LED

I

10

home screen.

Crops photos.

Moves

the

cursor.

Cancels or goes back.

Cancels a job.

Resets 1he settings.

copy/print/scan.

Starts Solves errors.

Increase or decrease the number

Turns on when the power is on.

Flashes while processing.

the

buttons

Function

and

of

LED.

prints.

1.1.2 Buttons & LED Functions

Detailed

Note : ---:No change

information

Printer Idle mode Effective keys blink Power-off OFF Warning Effective keys blink Fatal error Effective keys blink Printing/Scanning Effective keys blink Preparing FW update Effective keys blink

li

nk

B Blink

se

of

I:

2:

Network Displaying the screen-saver Power save mode Response

Airprint Identify-Printer

on

the

LED

functions

Ta

ble 1-2. Buttons & LED Functions

Status

tting Effective keys blink

I

are

Buttons

OFF OFF

---

Repeats turning On and Repeats turning On and

Off

every 1.25 seco nds.

Off

every 0.5 seconds.

listed

below.

P1mcr

I

LED

ON

OFF

---

Blink 2

li

nk I

B Blink I

--

---

Blink2

Note * · See

PRODUCT

Tab

le 1-2 for more information on the LED.

DESCRIPTION

Figure 1-

1.

Name of Buttons & LED

Stop/Clear

butt

on

Control Panel 9

Confidential

easyfixs.blogspot.com

OPERATING PRINCIPLES

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

2.1 Overview

Description in Table 2-2. Scanner Mechanism (

to LSI 0 series.

•

Thjs section describes the operating principles

L8

IO seri

es.

p.12)

of

the printer mechanism of L8

is n

ot

applied

50

serie

s/

I 0 C

11

CD

I 2 Ca

D-R

Gui

de

Sensor

-R Tray Sensor

se Open Sensor

ble 2-1. Motor

s and Sensors (

Functio

n:

De1ec1i

on method: Mechanical con1act detector

n:

Func1io

ec1ion method: Mec

De1 Function:

Det

ection method: Mechanical contact detector

Printer

CD-R Guide up/down detection

C

D-R

Tray pr

hm1i

cal contact de1ector

Scanner U

nit

ese

open/cl

Mechanism)

nce de1ec1i

ose

detection

on

Ta

2.1.1 Printer Mechanism

L850 series/LS I 0 seri

Tab

Prinihead

2

CR

Motor

3

PFM

otor

4 PE

Senso

r

5 CR

Co

ntact ModLlle

6 CR Encoder

7 PF En

8 PW Sensor

9 APG Sensor

co

der

es

are equipped with the following printhead, motors and sensors.

le 2-1. Motors

and

Sensors (

F3

-MA

CH Turbo 2 h

Type: Voltage:

ra

cteristics: Annalllre res

Cha Dri

ve system:

Typ

e: Voltage: Cha

ra

cteristi

Dri

ve

system: PWM

Func1io

n:

Detection metho lnk canrid Typ

R Typ

R Function • Paper le

De1ec1ion method: Reflecti Function:

Det

eso

e:

lutio

e:

lution:

ec

ge detecti

n:

tion metho

ead

(6

DC motor

42V D

C±

Induc

tan

PWM

co

DC mot 42V D

cs:

C±

Armature r

Inductance : 17.2 mH (I kHz)

sys

Detecti

on

posit

ioning co

d:

Transmissive-1

on (CSIC)

Transmissive-type photo-

180 pulse/inch

Tr

ansmiss

180 pul

se/inch

(before and during priming)

• P

ape

r top ed

• Pap

er

• CD-R top, bottom, right a (before printing)

APG positi

d:

Transm

iss

Printer

co

ce : 17.5 mH ± 25%

or

bottom ed

ve pho1

Mechanis m)

lors x 90 nozzles)

5% (voltage applied to the driver)

istance : 22.7 n ± 10%

nstant-current chopping

5% (voltage applied to the driver) esis

ta

nce : 2 1.2 n ± I 0%

tem

of the paper tail end, Pape

ntr

ol

ype pho10

ive-type photo-interrupter

fl and right edge

ge

(before priming)

ge

(during printing)

osenso

r

on detection

ive-type photo-

-in1

int

sys

errupter

nd

lefl ed

errupter

tem

r leading ed

ges

ge

Figure

2-1

. Motors

and

Sensors (Print

er

Mechanis

m)

OPER

1\ TING

PR/NCI

PLES

(h•eniew I I

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

2.1.2 Scanner Mechanism

L850 series is eq uipped with the folJowing CIS Unit, motors and sensors.

Table 2-2.

R

CIS Unit

2 CR Motor Voltage: 42V DC ±

senso

3 Encoder

r

eso

16

bit per pixel (input), 8 bit p

Type: DC mot Drive

Type: Lin

eso

R

Scanner Mec hanism

lution: 10,200 pi

sys

tem: VrefpWM input

lution 180

ear encode

pulse

xel

er

pixel (o

utpu

or

5%

(voltage appli

constant-current chopping

r

/inch

t)

ed

to

the driver)

OPER

1\ TING

Figure 2-2. Motors a

PR/NCI

PLES

nd

Sensors (Scanner Unit)

I

Oi•eniew I 2

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

2.2 Power-On Sequence

This

section desc

D

Cond

•

Complet

•

No CDR

•

The stac

•

The Printhead is

•

The

I.

Checking waste

I- I .Reads out the protection count

waste ink overflow.

2. Avoiding 2-1.The carriage moves to the 0-digit side slowly and

confirms it touches the Right Frame.

2-2.The carriage slig

2-3.The PF Motor rotates clockwi

CR lock.

2-4.The carriage moves to the 0-digit side slowly and

confirms it touches the Right Frame.

2-5.The carriage returns to its home position.

3.

CDR

Tray sens

3-1.Checks with the C

Tray is not set.

3-2.The PF Motor rotates clockwi

Tray.

rib

es the

iti

on

ing ink

Tray and

ker

is

Carriage

Tab

Operation

ink

deadlock sequence

htl

or

check

pow

er-

on sequences.

charge.

no

pap

er on the

not

set

on the

CDR

printing position.

capped

is l

ocked

le 2-3.

overtlow

y moves to the 80- digit side.

DR

with

by

Operation

1

"

er

4

•

se

Tray senso

se

the

Cap

the

CR

lock.

of

value to ch

and releases the

r if the CDR

to eject the CDR

paper

path.

of

the

Ink

System.

the power-on sequence

I

Carriage/PF

eck

1110\c111ent

80

and

CRIOc•

-s~

80

-S'

I

80

-S'

I

80

trs

80

-s

80 HP 0

-s

80

-S

80

~

;~~

~

)-----{}0-

<,----{JO-

roller I

position"

HP 0

CR

HP 0

-+

EI

D

HP

0

f-

I

LE

0

HP

0

-+

f-

HP 0

2

p(;".I

Any

position

J,

Table 2-3.

Operation

4.

Releasing the

4-1.

Th

e PF Motor rotates clockwise and releases the

CR

Seeking the

5. 5-1.The

5-2.The carria

confams

5-3.The carriage slowly moves to the CR lock set

position.

5-

4.T

he

CR

5-5.The PF motor rotates counterclockwise and sets

the

5-6.The carria

confirms it touches the

5-7.The

the

5-8.The PF motor rotates clockwise and releases the

CR

5-9.The carria

confinns it does not touch the CR lock.

5-1

O.The

position, and home pos Afterward , the carriage position is monitored according to the sig

6. R

ese

tting APG

6- l.Th

ecarriage slowly moves to the Right Frame and

stops there.

CR

lock

lock.

hom

e position

car

ria

ge slow

ly moves to the 80-digit sid

ge

moves to the 0-digit side slow

it

touches the Right Frame.

PF

motor rotates clockwi

lock.

CR

loc

k.

ge

moves to the 80-digit side slowly and

car

riage slowly moves to rhe 0-di

CR

lock set position.

lock.

ge

moves to the 80-digit side slowly and

car

riage slowly moves to its original

Operation

1

"

se

and releases the

CR

lock.

iti

on is

fix

ed.

nal

s from the CR Encode

of

the power-on sequence

git

side to

Carriage/PF roller I

1110\c111ent

80

~

80

e.

-S

ly

and

80

-S

80

-S

80

-6:1>

80

~(

80

and position'

HP

~

HP

(--

s----£HJB-

HP

~

<,---a-{}----0

HP 0

s---D---CJ-

HP

~

HP

I

0-

HP

f-

p(;'.I

2

0

Any

posit-ion

0

J,

0

J,

f-

J,

0

J,

0

J,

0

J,

-S<,--------t[JB

80

-S'

I

80

-6:1>

~

80

-S

s------nD----8-

80

-S

r.

s----aoc;J-

80

10

~

HP

-+

0-

HP

~

HP

HP 0

-+

0

t

0

J,

0

J,

0

J,

-ss------os-o

(Continue

to

the next page)

OPER

1\ TING

PR/NCI

PLES

Power-On Sequence I 3

Confidential

L

easyfixs.blogspot.com

5,1

senes

r ·

8

6-2.The

the PG sensor.

6-3.After the

PF Motor rotates clockwise by the specified step until it detects the PG-- (APO home position).

6-4. After detecting the

slightly moves

6-5. After the PF Motor rotates counterclockwise,

rota1e On

6-6.The carriage slowly returns to its home position.

7. Sett 7-.1.

The

stops there.

7-2.The

7-3.The carriage slowly returns to

8.

PF

initializat

8-1.Checks if paper exists by the PE sensor•5 and the

PF

Moto

9. 9-LThe

and performs a load measuremen1.*6

10.L

ow

10-1.The PF Motor rotates clockwise, and releases the

CR lock.

10-2.The

lock and the 80-digit side for two times.

,

senes

/1810

PF

Motor rotates clockwise while monitoring

PG sensor switched from

s clockwise to confirm the

-stat

e.

ing the APG to

carriage slowly moves to the Right Frame and

PF

Motor rotates clockwise and $ets to PG++.

ion

MotOr rotat

r m

easurement

PF

motor rotates clockwise for four seconds.

temperature

ca

rria

ge

· Revision A

Ta

ble 2-3. Ope

Operation

APO

to

the 80-digit side.

PG++

es

clockwise for one second.

operation sequence

moves back and forth between CR

· 1

home

rat

ion of the power-on sequence

Off

to On,

posi1ion, 1he

PG

i1s

carriage

sensor is set to

home position.

"

it

1he

Carriage/PF

mo\cment

80

-s-s

~

80

trs

S---------U----

80

--'>

s---------o--rn

80

-e&i>

s----D---0--

80

--'>

s---rn:a-

80

-'>

<,----------QB-

80

trs

S------0----0

80

--'>

s-oc:JB

80

~

<,----------{)Q

80

and

roller

position"!

HP

0

HP

0

HP

0

(--

HP

0

HP

0

(--

HP

0

~

HP

0

HP

0

(--

Ill' 0

HP

0

J>(;".I

Any

posirion

.J,

PG--

.J,

PG++

.J,

~

,

HP

0

.J,

0

.J,

80

~

s-----oc-

80

~

_i;

~

Tab

le 2-3. Op

Operation

11.Setting the APG to I I-I .The carriage slowly moves to the Right Frame

and stops there.

J

1-

2.The

PF

Motor rotates clockwise and sets to PG--.

11

-3.The carriage slowly returns to its home position.

12.CR measurement a nd 12-1.The carriage slowly moves to the 80-digit side.

12-2.The carriage performs a load measurement while

moving to the VH Check position. and records the detected vollage three positions, then stops.

12-3.The carriage detects the

at the carriage stop position (the black area at the Paper Guide Front).

12-4.The carriage performs a load measurement while

moving to the 0-digit side, and stop

12-5.The carriage perfo1ms a load measurement while

moving to the detected voltage thr

ee

positions, then stops.

12-6.

Th

e carriage detects the voltage

at

the carriage stop position (the black area at the

Paper Guide Front) .

12-7 .The carriage performs a load measurement while

moving to the 0-digit side, and stops.

13.Detecting ink cartridge 13-1.The

PF

Motor rotates clockwise for one second,

and resets the

PG--

PW

of

the

YH

Check position, and records the

of

the PW sensor at the specified

and

PF

Roller. •9

erat

ion of the power-on sequence

·•

sensor initialization

PW

sensor at the specified

voltage

of

the PW sensor

s.

of

the PW sensor

initializing ink system*

Carriage/PF

1110\ement and position' !

80

--'>

S---OS-O

80

trs

S------0---0

80

--'>

s------aoa

80

--'>

s------o-oa--

80

---'>

~

80

"'"""

~

80

--'>

SB-0-D----

80

--'>

s.o-a--o----

80

---'>

~

80

---'>

~

8

80

-&s

s----n-o---

(-----

~

(Continue

roller

HP

(---

HP

0

~

0

to

the next page)

p(;'.I

PG++

PG--

.J,

OPER1\TING

PRINCIPLES

Power-On Sequence

14

Conf1dent1al

L850 series/L8JO series Revision A

easyfixs.blogspot.com

Tab

le 2-3.

Operation

J 3-2.The carriage slowly moves

13

-3.T

he

carriage the ink end sensor. The ink remaining is detected after

comp

13-4.The carriage slowly returns

14.

CR lock

1

4-1.The

carriage slow position.

14-2.The

14-3.

Note

PF the

CR

The carriage sl

*I:

The

Clockwise: Paper is fed normally Counterclockwise:

*2: The

Red: Whit

*3:

lndicates the PG position. "Any position" means that the PG position is not recognized because

*

4:

Checks

*5:

Eject the

*6:

When paper exists, the existing m

therefore, the *7: Executes *8:

The empt *9:

ff

mov

leting tbe check.

setting

Motor rotates counterclockwise, and sets

lock.

owly

rotation

direction

condition

CR

Jock is

e:

CR

lock is released

if the carri

paper

when the detected temperature

y suction operation may occur depending on 1he situation.

paper re

main

· 1 to

es

to

the 80-digit side to chec k

to

ly moves to the

returns to its h

of

th

Paper is fed backward

of

the

CR

lock is

set

APG is not reset yet.

age

is

not deadlock such

if

any.

PF Motor

s in

does

1he

primer, !he PF

of

the power-on sequence

the 0-digit side.

its

home

position.

CR

lock

set

ome

position.

e

PF

Motor

is as

as

fol.lows.

as

eas

urement value saved in EEPROM is read out;

not rotate.

is

under 5 °C (41

Roll

er

rotates

Carriage/PF

mo\cment

80

~

s--a::n----

80

<

~

c,.o-ao--

80

~

s-a----ab-

80

~

s-----oao-

80

~s

80 HP 0

--

and

~

roller

position"!

HP

HP 0

HP

~

HP 0

I D-

~

~s--------tDB

follows.

the

CR lock

is

caught in the gap

°F)

by the thennistor

by

steps enough

10 ejec

t lhe paper forcibly.

J>(;".I

0

PG--

.J,

0

.J,

of

the carriage.

on the Printhead.

2.3 Printer Initialization

Th

ere are

fom

kinds

of

initialization method

initialization.

1.

Hardware initialization

This

print

er

is initialized when turning the printer the cold-reset command (remote When printer is initialized, the following actions are performed. (a) Initializes printer mechanism (b) Clears input

data

buffer (c) Clears print buffer (d) Sets default values

2. Operator initia

li

zation

Initialization when resetting the

(a) Clears input data buffer (b) Clears print buffer (c)

Set

s default values

3. Software initialization The

ESC@command

also initialize the printer. When printer is initialized, the following actions are performed. (a) Clears print (b)

Sets default values

4.

IEEE

1284.4 "r

The

printer recognized the IEEE 1284.4 "r

When print

• Initializat ion when an

buff

er

s"

command

er

is initialized, the following action is performed.

initialization

e1Tor

(a) Initializes printer mechanism (b) Clears input data buffer (c) Clears print buffer (d) Sets d

efa

ult values

• Initialization in normal operation

(a) Clears input data buffer (b) Clears print buffer (c)

Sets default values

, and the following explains each

pow

RS command) .

USB

sof

tware, and the following are performed.

s"

command.

occurs.

er on,

or

printer recognized

OPER1\ TING

PR/NCI

PLES

Printer lnitiali:.atio11 I 5

Confidential

easyfixs.blogspot.com

TROUBLESHOOTING

Confidential

L850

easyfixs.blogspot.com

series/L8JO series

Rei

·isio

11

A

3.1 Overview

Description in this c

But

3.2.3.1

Scanner

series.

•

This chapter describes troubleshooting.

3.1.1 Specified Tools

L850 series/LS I 0 series does not require any specified tools for troubleshooting.

3.1.2

Before starting troubleshooting, be sure to verify that the following conditions are a

Preliminar

•

The

power

the voltage at

•

The

POWER

miswiring

•

The

Unit must

•

The

Unit should

or

low temperature, too high

•

The

Unit should not be located near waterworks, near humidifiers, near

heaters

or

be

exposed to blast from an air conditioner.

•

The

Unit should not be located

are produced.

•

The

Unit should not

rays

of

the sun.

•

The

Unit must be placed on a strong and steady level table (without an

inclination larger than 5 degrees).

•

There

must be no vibration generating source placed

•

The

paper used must conform to the specification.

•

There

must be no error in handling

•

Check the inside

clips, staples, bits

• Clean

the

y Checks

supply voltage must

the

wall outlet.)

CORD

in

the POWER CORD.

be

grounded properly.

not

near flames, in a dusty atmosph

of

inside

of

hapt

er is applied

FATAL E

be

within the specification limits.

must be free from damage, short circuit

be

located

be

the Unit, and remove foreign matters,

paper, paper dust

the Unit and the rubber rolls.

in a place

or

low humidity,

in

a place where volatile

located in a place where it

of

rror

s (

where

ere

the Unit.

or

toner.

to

L850 series/L810 series.

p.22

) is not applied to L810

it

can

be

or

abrupt temperature change.

or

in

a place where the Unit can

can

be exposed to direct

in

(Measme

or

breakage,

exposed

or

contact with this Unit.

if

to

too

inflammable gases

any, such as paper

ll

high

met

or

3.1.3

Perform troubleshooting according to the flowchart shown below .

Procedure

Perfo

rm

"3.1.2 Preliminary

Che

ck

To T

ro

ubleshooting for

individual

s (p .

17)".

Units

Flowcha

for Troubleshooting

No

Yes Error

• l..:;.::;:....

rt

__

3-1.

Procedure for

Problem

By

referri

Troubleshooting When There is

--11~

th (Also refer to "Solving Problem in

Troubles

Power Supply Related Troubleshooting (

I

Tr

ng

Display (p.18)

e error and repa

User's Guide)

ho

/F

Relat

ed Troubleshooting (p

oubleshooting for Scann

Troubl

solv

ed

to

"3.2

oting for

eshooting

",

ir

it.

Prin

identify

ter (p. 28)

er ( p. 35)

s"

.3

4)

p.

32)

TROUBLESHOOTING

Overview

17

Confidential

L850 series/L8JO series

easyfixs.blogspot.com

3.2 Troubleshooting When There is Error Display

Th

e messages displayed on the LCD

abo

List"

ve

n only for information.

gi

ame as

s

the messages actually displayed.

•

3.2.1 Error List

ve

and

" (p.18)" on the next page and subs

In

that are listed in th e "Err

oth

er word

s, they

equent

are

not exactly the

or

pages are

Rei

·isio

11

A

Error

Name

Printer

FATAL Error

Maintenance Error

Paper

jam

Error Paper jam. Open tbe scanner unit and remove the pape r. The paper

Paper Empty Error

CD/DVD Tray Error

Multi-page Feed Error

Scanner Fatal Error A scanner error has occurred.

Scanner Open Error Close the sca nn

I

A printer error has occurred. Turn On button to turn on. See your documentatio

The

printer

's

Plea

se

contact Epson Support.

Paper jam. Load paper and press Start.

clear, repeat the procedure.

CD/DVD error.

Press the Start burton. media by hand.

Paper out.

Load paper The CD/DVD tray is set incorrectly. Set the CD/DVD tray

correctly, then press the

Multi-page feed error. Remove and reload the paper, then

press the

and press the Start button.

Start butto

Displa~

ink pads are at the end

If

the error does not clear, remove the

Start bullon.

n.

er

unit.

ed

\lessage

off

the printer, then press

of

their service li

If

See

your documentatio

n.

the error

Table 3-1. E

fe.

does n

ot

n.

rror

List

I

irrecoverable error has occurred.

An

The

printer requires maintenan

overflow.

A sheet was loaded jam.

The

CD/DVD tray is jammed.

Th

ere is no paper

The

CD/DVD tray is set incorrectly.

Mu

lti-page feed err

An error has occurred in the scanner mechanism.

The

sca

nner unit is opened during stand-alone printing,

copy

in

g,

Occurrence

in

jam

has occurred.

in

the sheet feeder.

or

printing from an external device.

Condition

ce

due to waste liquid

a wrong orientation and caused a

has occurred.

Reem

er~

I

Turn

off

the power.

See

"3.2.3 FATAL Error"

Replace the waste ink pads. See "6.

1.1

Maintenance Error"

Follow the displayed message until the sheet loaded in a wrong o ejected.

Turn o

ff

the power, and remove the paper

or

the tray.

Pr

ess the Start button to feed paper

cor

rectly.

Set the CD/DVD Tray the

Start button.

Re-set paper and press the feed paper

Turn See

(p

.35)

Clo

correctl

off

the power.

"3.3.5 Troubleshooting for Scanner"

se

the scanner uni

Procedure

cor

y.

t.

(p

.22)

(p

.119)

ri

entation is

rectly and press

Start button to

TROUBLESHOOTING

Troubleshooting When There

i~

·

Error Display 18

Confidential

L850 series/L8JO series

easyfixs.blogspot.com

3.2.2 Warning List

Table 3-2. Warning List

Warning

Waste fluid is n

S

et

the CD-R/DVD tr

(Set correctl CD/DVD g

(C

lose error) CD/DVD guide cl Position

of CD/DVD guide

(Re-set) External d

inserti

Card Screen translation and print

exec

uti

ons conn

Index sheet scan error There is no index sheet or it is not positioned correctly. Check it (no index sheet) and try again. button.

l.ndex sheet scan error

ec

(incorr marking)

index sheet scan error

incorrect paper selection

( marking)

Index sheet scan error (Di

sc

repancy between index

sh

ee

t a

nd card)

Select phot print. current

Select the number

Ph

oto recognize

Name

ea

r end S

ay

y)

ui

de

warning

ose

error

evice installm ent

on Cannot r

ect

ing DSC to print was attempted with a DSC connected.

t image selecti

os

in CD label

of copy. Only I copy can be selected. More than one copy has been selected. Select only one cop

Err

or

I

The pr

Co

The CD/DVD tray is set incorrectl correct

The front tray is in the wrong positio to

Th se

Ca

A camera is

Ph

on

Pl

Th

Please

The index sheet and try

Th

No photos corr

l>ispla~

l'd i\

kssage

inter

's ink pads are nearing the end

ntact Epson Suppo

ly, then press the Sta rt button. DVD tray correctl

se

t the front tray to the CD/DVD positio

e front tr

ay

t the fro

nt

tray to the paper position. printer driv

nnot recogni

ecognize

co

otos are not selected or the

ease correct and try again.

e paper type is not selected or ovals are marked inco1Tectl

correct and try again.

contems of the memory card have changed. Print a new After index sheet printin

e number of photos selected exceeds the maximum for the More than the specified number

layout.

co

uld be recognized. Make sure photos are positioned

ectly. See

rt. to its

is

in

the CD/

DVD

positio

ze

the device. An unsupport the memory card or disk. Memory card recognition failed. Remove the memory card.

nnected. Disconnect the

ova

ag

ain.

your manu a

l.

of

their servi

y. S

et

the CD/

DVD

tray At start

n.

Push down the tr

n.

Rai

se

the t

ray

came

ra and try aga

ls are marked incorrectl

ce life

ay

I

. The waste ink pads have already absorbed waste ink nearl

full capacity.

of

The printing data for CD/

lever

the printer driver but the positio

n.

lever to

y.

Th

e printing data for normal printing has been sent from the

Entering a menu screen for u

in.

An ind

ex

The im

age selection marking on the index sheet is not

correc

t.

y.

The paper correc

t.

inserted or images were added or deleted. sheet was printed or print a new index

selec

ted. number of photos.

Th

e photo could not be recognized.

Occurrcnn· Condition

printing, the printer has not recognized the CD-R/ Set the CD-R/DVD tray correctl

y.

DVD

Stacker Assy is

er

but the Sta

ed device

sheet was

se

lection marking on the index sheet is not

cker

has been installe

se

not

set.

g,

a different memory card was

printing has been sent from

on

the ASF

Assy is on the CDR positio

d.

of

memory cards or starting

of

phot

os

have been Select not more than the specified

I

pl

Re

y

ee

(p

.

11

press the Start button.

Push the lever down to change the Sta

cke

Push the lever up to chan

n.

Stacker Assy to Remove the device.

Di

sconnect the camera.

Set the index sheet and press the

Correc OK

es

R

co

ndition as it was when the index

sh

ee

Se

t the photo and try again.

Rei·isio11

Rcl'oHr~

ace

the was te ink pads.

"6.

1.1

9)

r Assy to CDR positio

t image selection and press the

button.

t paper selection and press the

butto

n.

tore the sa

t.

Procedure

Maintenan

ASF pos

me

memory card

ce

Error"

n.

ge

the

ition.

y.

A

y, and

OK

TROUBLESHOOTING

Troubleshooting When There

i~

·

Error Display 19

Confidential

L850 series/LS

easyfixs.blogspot.com

JO

series Revision A

Table 3-2.

Warning

Scan to memory error (no card) attempted with no memory card inserted.

Scan to memory error There is not enough free space on the memory card (insufficient card capacity) canceled. sufficient capacity.

Scan to memory error (card write-protect) save data. protected.

Scan to memory error Cannot create a folder on the memory card (folder not created)

Scan to memory error (card removed) been removed.

Scan to memory error (save error)

Format check (backup) Format check (scan) Format Warning

(Format error) (scan) out the media while formatting it. Format Warning

(card write-protect) (scan) protected and try again. Format Warning

(card removed) (scan)

Head Cleaning Replace ink Adapter before cleaning print head. Head cleaning was attempted in the Ink Low state.

Backup error External device (no external connection) Backup canceled. started.

Backup error (insufficient external media capacity)

Backup error (insufficient memory card capacity)

Backup error (no card) Backup error

(File name and Folder levels Error)

l\ame

I

No

memory card

The memory card

canceled.

The memory card

An

error occurred while saving. Save canceled. Data saving was not achieved for some reason. Check the source data

Cannot recognize the memory card format it?

A problem occurred while formatting . Formatting canceled.

The memory card

The memory card or disk was removed. Format canceled. The media is removed when formatting is to be started. Insert media and try again.

Insufficient space on the backup device. Cannot back up files.

No memory card

Backup canceled. File name is too long folder levels. levels

Displa)ed

or

disk inserted.

or

disk is write-protected. Operation canceled.

or

disk was removed. Operation canceled.

or

disk is write-protected. Operation canceled. As the memory card was write-protected, formatting failed.

is

not connected

in

slot. Backup canceled.

:\lessage

Save

canceled.

or

disk. Operation

or

disk.

Do

you want to

or

media is not inserted.

or

there are too many The file name is too long,

or

disk. Save

Warnin

g List (continued)

I

Execution

The

memory card capacity is insufficient.

As

the memory card is write-protected, it is not possible to Insert a memory card not write-

A folder could not be created

Data saving was not executed, since the memory card had

The

media for backup cannot be recognized. The memory An error has occurred

The

external device was not connected when backup was

The capacity saved is insufficient. space.

No

backup sour

in

folder hierarchy. hierarchy.

Occurrence

of

scanning to a memory card function was

ca

rd cannot be recognized.

in

of

the media on which the backup data is to be Insert media that has sufficient free

ce

exists. Insert the memory card.

Condition

on

the memory card. Check the data on the memory card.

formatting the card.

or

the source has eight

Or

you pulled Press the

or

I

Insert a memory card.

Execute

Cancel the head cleaning, the ink Adapters.

Connect the external device.

more Check the file name and the folder

RecO\er)

Insert a memory card that has a

or

OK

media. Insert a memory card not write-

Procedure

cancel formatting.

button and check the

or

media.

or

replace

TROUBLESHOOTING

Troubleshooting When There is Error Display

20

Confidential

L850 series/LS

easyfixs.blogspot.com

Warning

Backup error

In adjustment expansion value border may appear around your photo. Borderless Expansion Value.

JO

series Revision A

Ta

l\ame

of

borderless You can change the amount

I

Backup Error.

or

Code FFFFFFFF*

Err

Displa)ed

of

ble 3-2. Warnin

:\lessage

image expansion, but a white This message is always displayed during adjustment

g List (continued)

I

An error has occurred at the external device. Check the external device.

Occurrence

Condition

of

the

I

Accept it.

RecO\er)

Procedure

* · The actual messages are displayed as error codes corresponding to the cause

Note

of

the error.

TROUBLESHOOTING

Troubleshooting When There is Error Display 21

Confidential

L850 series/L8JO series

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Rei·isio11

A

3.2.3

FAT

AL

Error

The EEPROM The

latest fatal e

program.

•

3.2.3.1 Scanner FATAL

l'ategor~

Snnaner

I

E

rror Code

OxO

Ox02

Ox03 Ox04 SCN PID acceleration lock detection error

Ox

Ox06

Ox09

OxOA

Ox

OxOD

Ox

Qx

stores the e

rror

code

of

the

can be identified using the

Errors

I

I SCN PID speed over error

Pill

reverse error

PIO lock error •

PID excess load error

PID driving time error • Main Board

BS+ excess speed error

ntact detection distance exceeded er

OS

OB

OE

l I

SCN

SCN BS+ reverse error

SCN BS+ lock error • SCN En

SCN BS+ excess load error

SCN BS+ driving time error • Main Board failure

Co

lat

est fatal e

adj

ustment

Erro

r

rror.

Tab

le 3-3.

ror

Scan

ner Fatal Error

s

I

• SCN Encoder failure (contaminated/detached scale, Encoder Board

• Motor driver failure (Main Board failure)

• SCN En

• Paper jam

• SCN Motor

• Paper

•

• SCN Encoder failure (contaminated/detach

•

• SCN

• Paper jam

• SCN Motor

• SCN drive overload (paper

• Cabl

• CIS Unit failure

• Scanner Housing failure (Incl

• Main Board failure

• Scanner FFC

• Scanner

coder

SCN Encode

jam

Cab

le disconnection

Motor

driver failure

Encoder

coder

e disconnection

Motor

failure (contaminated/detached scale, Encoder Boardfailure)

r fail ure (contaminated/detached scale, Encoder Boiu·d

fai

lure

fai

lure

(Ma

in Board failure)

fai

lure (contam inated/detached scale, Encoder Board failure)

failure (contaminated/detached scale, En

fai

lure

jam

fai

lure I Scann

failure I Scanner Motor connection

Possihle

/foreign object)

uding wrong attachment

er

FFC connection failure

cau

se

ed

scale, Encoder Board failure)

coder

Board failure)

of

the orig

fai

lure

in

fai

lure)

fai

lure)

mark)

TROUBLESHOOTING

Troubleshooting When There

i~

-

Error Display 22

Confidential

L850 series/LS

easyfixs.blogspot.com

Categtir)

Snnaner

JO

series Revision A

Tab

I

Error

Code

Oxl2

Oxl3

Ox20 LED light error

I

Opposite side contact detection distance • CIS Unit failure exceeded error

Opposite side wrong contact detection • CIS Unit failure distance error

le 3-3. Scan n

Error

er

Fatal Errors

I

• Scanner Housing failure (Includ ing wrong attachment

• Main Board failure

• Scanner FFC failure I Scanner FFC connection failure

• Scanner Motor failure I Scanner Motor connection failure

•S

canner housing failure (Including wrong attachment

Main Board failure

•

• Scanner FFC failure I Scanner FFC connection failure

• Scanner Motor failure I Scanner Motor connection failure

• CIS Unit failure

• Main Board failure

Possible

cause

of

the origin mark)

of

the origin mark)

TROUBLESHOOTING

Troubleshooting When There is Error Display 23

Confidential

L850 series/L8JO series

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Rei·isio11

A

Table 3-4.

Catcgor~

DC err (C

R motor) motor operating sequence

or

I

Error

Code

I

OxO

J CR PID speed over err Ox02 Ox08 CR PlD rever

OxOA

OxOB oxoc

OxOD

CR load positioning lock error

CR load positioning accumulation moving • PF Adjustment distance error

CR load positioning speed over error CR

CR PlD

PTD

lock error

aveT

Error

or

se

rotation detection error

i max error

I

An error occurr

Printer

Cause

ed

Mechanism

in the CR

3.2.3.2 Prin

ter

Mechanism FAT AL Err

Fatal Errors

I

D Checking the operation

Move the CR

D

Making the followi.ng adjustments:

• Bi-D Adjustment

• PW Adjustment

D Checking t

• Checking the head FFC (CN 10/11/12) for disconn

• Checking the lead wires

• Checking the

• Checking

• Checking the CR Guide Shaft for adhesion

• Checking the Linear Scale for adhesion

• Checking the CR Encoder for adhesion

• Checking the PW Sensor for adhesion of dirt or damage

• Checking the CR Belt for damage

• Checking the

• Main Board (p.66)

• Power Supply Board (p.66)

Uni! by hand, and check to see if it moves smoothly.

he foll

CR

the printer frame for adhesion

CR

of

the CR Unit:

owing parts and replacing the defective

of

the CR Motor (CN 14) for disconnection

Encoder FFC (CN I6) for disconnection

Motor and replacing it if necessary (p.85)

Remed~

of

dirt

of

dirt

of

dirt

or

improper tension (p.85)

ors

one

ect

ion

or

breakage

or

breakage

or insufficient lubricati

dirt

or

insufficient lubrication

or

damage (p.

or

damage ( p. I

(p

76)

I)

. I I)

or brea

on

kag

(p

e

. 123)

(p

.122)

TROUBLESHOOTING

Troubleshooting When There

i~

·

Error Display 24

Confidential

L850 series/L8JO series

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Tab

le 3-4.

Cakgor)

DC

error

(PF motor) motor operating sequence

A

PG

Motor drive time error

motor

I

Error

Code

I

OxFB Ox OxFC

OxFA

OxEF Position error

OxFO

Ox70 APG error (normal drive error) Ox71

Ox72

OxDJ CR (PID) drive time-out OxD2 OxD3

OxD4

PF

acceleration lock error

FE

PF

speed over error insp

Measurement value error limiting control

DTY

_max error

APG home seek

Error in APG drive by

CR

(load positioning) drive lime-out

PF

(PID) drive time-out

PF

(BS) drive time-out

Error

in

PF

BS control

in

PF BS control

e1Tor

in

PF

Duty

fac

tory command

Prin

ter Mec

I

An error occurred in the

An error occurred in the APG operating sequen

The

motor kept operating

for more than

e.

tim

hani

Cause

the spec

sm

Fata

l Errors (continued)

Remed)

D Checking the

Check the

ect

D Ch

ecking the operation

Operate the

D Making the following adjustments:

Bi

-D Adjustment

• PF

Adjustment

•

PF

• PW Adjustment

D Checking

• Checking the

• Checking the PF encoder for adhesion

• Checking the Upper Paper Guides for improp

• Ch

ecking the

• Main Board

• Power Supply Board (p.66)

0 Ch

ec

position

D Check

• Insta

ll

• Standalone

• Rein stallation of the

D Checking the following parts and replace the defective one:

ce

ified

• APG

• ASF Unit (p.82)

• APG

• PG L

• Main Board (p.66)

• Power Supply Boa Checking the mechanism and operation:

D

Check the mechanism and operation Checking the conn

D

0 Checking the motor in

• Main Board

• P

ower

PF mechanism

PF

mechanism for paper

ion.

PF

mechanism

the follow

king the installation

of

the sensor and connection

in

g t

he

ati

on

operation

Unit (p.83)

Sensor(p.

eft Cam (p.86)

Supply Board (

ing par

PF

Encoder FFC (CN8) for disconnection lead wir PF

scale for adhesion

PF

Motor and replacing it

(p.66)

drive

of

the composite

11)

.

rd

ect

(p.66)

by

visual inspection:

jam

or adhesion

of

the

PF

mechanis

by

hand , and check to see if it operates smoothly.

ts

and replace the defective one:

es

of

the

PF

Motor (C N 1

of

dirt or damage (p. of

dirt

if

of

the APG Sensor:

of

the connector (CN7)

the APG Unit:

gear of

the ASF Unit - APG Unit

of

the APG Unit

APG Unit (phas

(p. 66)

ion

of

the connectors and routing

qu

estion and the following parts and replacing the defective part:

p.

66)

e)

of

the motor

of foreign mailers by visual

m:

or

3) for disconnection

or

dam

age

er

installation (p. 91)

necessary

(p

. 79)

in questio

of

breakage

or breakage

79)

(p.

79)

n.

the lead wires

Rei·isio11

A

TROUBLESHOOTING

Troubleshooting When There

i~

·

Error Display 25

Confidential

L850 series/L8JO series

easyfixs.blogspot.com

Cakgor)

Factory command error

I

Error

Code I

Ox30

Ox40

Head system error

Ox41 Ox42 Ox43 ox

so Home seek error

oxs1

Sequence error

Ox52 Ox53

Ox56 Ox60

Ox6J

Sens

or

error

Ox62

Ox63

Tab

le 3-4.

Error

E

rTOr

by EEPROM verify command

Transistor ambient temperature abnormal Error in X-Hot detection before priming Error in X-Hot detection after flushing Head ambient temperature abnormal • Replace the Head FFC

CR unlocking error CR locking error Paper detect error before initial charge

completion Ob

structed sequence error at ink Adapter

replacement PW detection error (

PW detection error (Low check error)

Tray detection (CDR detector

Paper detection error

Hi

check error)

2)

error

Prin

ter Mec

I

The

thermistor on the printhead detected abnormal temperature.

An error occurred in the ca

rri

age operating See Remedy for se

quence.

PW detector trouble

Sensor u·ouble

Cause

---

hani

sm

Fata

D Checking the following parts and replace the defective one:

• Main Board (p.66) +Power Supply Board (p.66)

D Checking the following parts and replace the defective one:

• Printhead (p.

• Main Board (p.66) +Power Supply Board (p.66)

0 Checking the PW Sensor (

• Checking the

• Checki.ng the connection

D Making

• PW Adjustment

0 Checking the following parts a

+Head +CR Unit (p.86) +Main Board (p.66)

• Power Supply Board (

0 Checking the operation 0 Checking the following parts and replace the defective one:

• PE Sensor( p.

• PW Sensor( +CD-R Tray Sensor +Main Board (p.66)

• Power Supply Board (

l Errors (continued)

74)

DC

error (

PW

Sensor for adhesion

the foll

owi.ng adjustments:

FFC

11

)

p. 11)

(p. I/)

Remed)

CR

motor)

p.

11

):

of

dirt and dust

of

the FFC

nd

replace the defective one:

p.

66)

of

the actuator and the connection

p.

66)

of

the connector.

Rei·isio11

A

TROUBLESHOOTING

Troubleshooting When There

i~

·

Error Display 26

Confidential

L850 series/L8JO series

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Tab

le 3-4. Pri

Cakgor)

Maintenance en-or maintenance parts

Abnormal An operation cleaning

I

Error

Ox

Qx88

Qx89

Code

I

AO

Waste ink overflow

se

rted tray error during cleaning

in

Obstruction detection error during cleaning

Error

nter

I

Life expiration

er

ror occurred during

Mechanism

Cause

of

Fatal Errors

D Replace al I the maintenance parts, and clear the maintenance counter.

Ma

(

D Pulling out the CDR Tray 0 Checking the CDR Tray Sensor ( p.

• Checking the

• Checking the connection

D Checking the connection 0 Checking the following

• CDR Tray Sensor(p.

• CDR Tray

0 Checking the operation

Move the CR

0 Checking the following parts and replacing the defective one:

• Checking the lead wires

• Checking the CR Encoder FFC (CN

• Checking the printer frame for adhes ion

• Checking the CR Guide Shaft for adhesion

• Checking the Linear Scale for adhesion

• Checking the CR Encoder for adhesion

• Checking the CR Belt for damage

• Checking the

• Main Board (p.66)

intenan

(continued)

Remed)

ce

Err

or

(p.11

9).)

11

):

CDR

Tray Sensor for adhesion

of

the connector

of

the FFC

pans

and replace the defective one:

I

/)

of

the CR Unit:

Unit by hand, and check to see if it moves sm

of

the CR Motor (CN 14) for disconnection

I 6) for disconnection

or

CR

Motor and replacing it if necessary (p.85)

of

dirt

of

the

CDR

of

di1·t

or insufficient lubrication

of

dirt

of

dirt

or

damage (

of

di11

or

damage

improper tension (p.86)

or

dust

Tray Sensor

oot

or

breakage

or insufficient lubrication

p.

76)

(p.11)

hly.

.

or

breakage

Rei·isio11

(p

.123)

(p

.122)

A

TROUBLESHOOTING

Troubleshooting When There

i~

·

Error Display 27

Confidential

L850 series/LS

easyfixs.blogspot.com

JO

series Revision A

3.3 Troubleshooting When There is No Error Display

3.3

.1

Troubleshooting for Printer

This section describes repair/service

D

Fa

ulty

paper

loading

Condition

Paper is not loaded.

Several

sheets paper are the same time

fed

I

LD Roller and Retard Roller dirty or Check to see worn the paper loading roller.

Operation is abnormal mechanism.

PE Sensor/PE Lever not operating properly

of

at Retard Roller operation is abnorma.l

Cause

of

paper loading mechanism Check to see

of

the Printer Mechanism. Listed below are various problems which may occur, observations

Tab

le 3-5. Diagnostics when feeder is abnormal

Check

I

if

no Micro Pearl or oily substance is adhering to

Point

I

Clean the

I.

Set

a cleaning sheet upside down

2. Start paper feed with the panel button.

3. Repeat steps above

To

remove oils from roller

ostcard

to a p

I.

Set the postcard

facing the LD Roller (or Retard Roller).

Start paper feed while firmly holding the upper edge

2.

3. Repeat the paper the LD Roller (or Retard Roller).

If these steps do not correct the problem, replace both the

and Retard Roller.

if

there is no abnormality

Check to see if the PE disconnected

Check to see properly.

Check Check to see

di

se

ngaged.

Check to see if the Retard Roller is

fr

if

fo

r damaged PE Sensor. Replace the PE Sensor.

if

Sensor connector has not been Connect the PE Sensor connectors to the sensor and Main Board CN6

om the sensor

the torsion spring

the tension spring on the Retard Roller is

or

in

the paper loading

Main Board. properly.

has

been set on the PE Lever

out

of

position. Install the Retard Roller properly.

Remove the dust and

ll

the torsion spring on the PE Lever properly.

Insta

Install the tension spring properly.

of

such problems, check point and remedies.

roller

s using a cleaning sheet.

se

veral times .

s, sta

and

follow

the

in

the tray with the alcohol dampened cloth side

feed

operation several times to clean the surface

di1t, if any.

Rcmed~

in

ple a clo

ste

ps below.

the ASF Unit.

th dampened

with

of

the card.

LD

alcohol

of

Roller

TROUBLESHOOTING

Troubleshooting

When

There is No Error Display

28

Confidential

L850 series/LS

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D

Fa

ulty pap

Condition

Paper

is

jammed on the way paper ejection. printed sheets using the adjustment program. value.

JO

series Revision A

er

ejection

Faulty PF-related operation

of

PF deterioration offset counter

Faulty operation

Tab

Cause

Turn the

to the Check the

of

Paper Eject Roller Check to see

le 3-6. Di agnostics when

Check

PF Roller, and check to

Paper Eject Rollers properly.

PF deterioration offset counter and the number

if

the Paper Eject Roller rotates correctly. Properly engage the gears driving the Paper Eject Roller.

paper

ejection is abnormal

Point Rcmed)

see

if

the paper is transferred

Engage the

of

Initialize the PF deterioration offset counter and write the maximum

PF-related gears properly.

D Faulty

Abnormal carriage operation Carriage does not move smoot during printing

carr

Condition

iage operation

I

Cause

Table 3-7. Diagnostics when carriage ac tion is

Check

I

Check to see Operate the carriage by hand and check to

smoothly.

hl

y.

Check tension Move the carriage to the right

to see moves smoothly.

if

the length

if

there is an obstacle in carriage route. Remove the obstacle.

of

the timing belt. Replace the compression spring

of

the Head FFC is proper and the carriage Remove the Head FFC once and reinstall it properly.

Point

see

if carriage moves

end

and left end fully and check

abnormal

I

Clean the

CR

guide shaft and lubricate.

Re

med)

of

the Driven Pulley Holder.

TROUBLESHOOTING

Troubleshooting

When

There is No Error Display

29

Confidential

L850 series/LS

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D

Printer stops during

Condition

Printer error is indicated.

JO

series Revision A

initializat

Paper Eject Frame not installed properly

CR

Motor not operating properly

PF Motor not operating properly

Linear Scale not operating properly Check for dirt on the Linear Scale. Completely clean the Linear Scale.

CR

Encoder not operating properly

Rotary Scale not operating properly Check for dirt on the Rotary Scale. Completely clean the Rotary Scale.

PF Encoder not operating properly

Head FFC not operating properly

Head Hot Error Check to see

ion

Cause

Tab

le 3-8. Diagnostics when

Check

Check to see been engaged.

Check for disconnected Check to see Check for the disconnected Check to see if the Check to see

Check for the damaged Linear Scale. Replace the Linear Scale. Check to see

Encoder Board. Check for paper bits and dust adhering to the CR Encoder. Remove paper bits and dust adhering to the CR Encoder. Check for the damaged Encoder Check for the damaged CR Encoder. Check

Check for the damaged Rotary Scale. Replace the Rotary Scale. Check to see

Board. Check for paper bits and dust adhering to the Check for the damaged Encoder FFC. Replace the Encoder FFC. Check for the damaged

Check for the disconnected Head FFC.

Check for the damaged Head FFC. Replace the Head FFC.

if

the hook securing the Paper Eject Frame has

CR

Motor connector. Check the connector (CN 14)

if

the

CR

Motor coil resistance is as specified. Replace the CR Motor.

PF Motor connector. Check the connector (CN 13)

PF Motor coil resistance is as specified. Replace the PF Motor.

if

the Lin

ear

Scale is through the

if

the Encoder FFC is connected to the

to see

if

the Rotary Scale is not through the PF Encoder. Enable the Rotary Scale to pass through the PF Encoder.

if

the Encoder FFC is connected to the PF Encoder

PF Encoder. Replace the PF Encoder.

if

ink is emitted from all nozzles.

printer

Point

FFC. Replace the Encoder FFC (

stops

during

CR

Encoder. Enable the Linear Scale to pass through the CR Encode

CR

PF Encoder. Remove paper bits and dust adhering to the PF Encoder.

format

Insta

ll

the Paper Eject Frame properl

Connect the Encoder FFC to the

ep

lace the

CR

R

Connect the Encoder FFC to the

Firmly connect the Head FFC to the Main Board Printhead.

If

condition does not improve after cleaning, replace the Printhead.

Unit.

Rcmed~

y.

of

the

CR

of

the PF Motor.

CR

Encoder Board.

CR

Unit).

PF Encoder Board.

Motor.

CN

I 0 - 12 and to the

r.

TROUBLESHOOTING

Troubleshooting

When

There is No Error Display

30

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Rei·isio11

A

0 Faulty

Condition

Improper printing occurs only with specific dots

Dot mi so

metimes occurs

Print is n intended

Vertical lines

ot

in ali

n

White lin appear data

ss

ing

ot

gnment

es

in

output

print

as

are

Tab

le 3-9. Diagnostics when printing is

l'ausc Printhead surface is dirty (Dot missing) Alternate cleaning and test printing several times. Clean the Printhead surface with a Capping absorbent material is in contact Check for the deformed

with Printhead surfa

FFC

Head Printhead not operating properly Alternate cleaning and nozzle Printhead Faulty connection Printhead not operating properly Repeat cleaning Ink Adapters not operating properly Install a new ink Adapters and perform no

ea

H

Printhead not operating properly Check connection of Head FFC to Printhead.

Bi-D adjustment is not made Check to see

Dirt is adhering to CR Guide

PF

Carriage

Platen

Gear is damaged

Ink Adapters not operating properly Install a new

Dot

Printhead surface Printhead not operati.ng properly Repeat cleaning several times, and then perform Lest print. Replace the Printhead.

CR

not operating properly Check for the damaged Head FFC. Replace the Head FFC.

surfa

d FFC is not connected

Roll

er

not operating properly

Slide not moving properly

Gap

jet

direction is angled

Gu ide Shaft not operating properly

ce

is dirty (Dot miss

in

side the Head

Shaft Check for dirt adhering to surface

not

set properly Ch

due

to dirt on

material.

ing) Alternate cleaning and nozzle check several times. Clean the Printhead surface with a

FFC Use

a circuit tester to check the FFC. Replace the Head FFC.

Check to see CR

Unit.

Check for dirt Check for the dama Check to see

parts at back

eck

Check for abnormality ASF

Alternate cleaning and test printing several rimes. Clean with a Check for dust and dirt on the Cleaner Blad e. Clean

Check to specified position.

Check for damage

if

the FFC is firmly connected to each board and

if

Bi-D adjustment has been done properly. Perform Bi-D adjustment.

on

if

sufficient grease is remaining

of

main frame. quantify

to see

if

platen gap adjustment has been done properly. Adjust platen gap.

mechanism.

ink

see

if lhe CR Guide ShaJt is lirmly installed in

Check

Point

or

damaged

seve

ral times, and then perform nozzle check.

the

PF

Roller.

ged PF

Rolle

in

gears between

Adapters and perform nozzle check. Replace the ink adapter.

to surface

capping absorbent

check several times.

zz

le

of

the CR Guide Shaft. Clean the surface

r.

on

PF mec

of

the

CR

Guide

Shaft. Replace the

abnorma

check. Replace the ink adapter.

carriage slide Clean the main frame carriage slide parts and lubricate with a specified

hanism and

l

I

Replace the Ink

If

condition does

If

condition does not improve after cleaning, replace the Printhead.

Connect the

If

there is no problem with the Head

replace the Printhead.

Carefully clean the surfac e

Replace the

Replace the damaged

or

Reassemble the CR Gu

System Assy.

not improve after cleaning, replace the Printhead.

FFC

firmly.

of

the

PF

Roller.

ofG-71.(p.

replace the Cleaner Blade.

(p. 108)

cotton

CR

Guide Shaft.

!23

parts.

swa

Rcmccl~

CR

Guide Shaft with a soft

of

the PF Roller with a so

)

b.

id

e Shaft.

conon

swa

b.

couon swab.

FFC

to Printhead connection,

dry cloth.

ft

brush.

TROUBLESHOOTING

Troubleshooting When There is No Error Display 31

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JO

series Revision A

3.3.2 Power Supply Related Troubleshooting

If

the printer

Defective power cord Connect the normal power cord. Replace the power cord. Abnormal

Faulty connection

Fuse blown Check the fuse Ab

normal output voltage

Board

does

not operate

Cause

AC

power voltage Check the

of

the connector

at

of

Power Supply

all

(LE

D does not light up)

I

Check the connection between the

- Main Board (CN3).

Check the output voltage

even

with the power turned ON, refer to the following table and perform troubleshooting.

Table 3-10. Power S

Check

Point

AC

power voltage. Supply the normal power.

Power Supply Board

(F

I)

on

the Power Supply Board. Replace the Power Supply Board with a new one.

of

the Power Supply Board.

uppl

y Related Troubleshooting

I

Correct the connection.

When the output voltage is normal: Replace the Main Board with a new one. When the output voltage is abnormal: Replace the

Remed)

Power Supply Board with a new one.

TROUBLESHOOTING

Troubleshooting

When

There is No Error Display 32

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JO

series Revision A

3.3.3 Ink Supply Related Troubleshooting

D

Printing

Carriage moves correctly but printing

is not normal. new one.

D

Wa

Ink is not flowing from Printhead to Cap from Cap to Ink

is

Condition

ste

ink

Condition

not

carried out

is

not

or

Tube

correctly

Tabl

e 3-11. Diagnostics when printing is e

I

FFC not connected Check the FFC connection between each CSIC Board -

properly Main Board.

Cleaner Blade not operating properly

FFC internal disconnection Check each FFC with a circuit t

Faulty

Ink leakage

with ink Check that Ink Tubes are not crumpled. Relea

disc

har

I

Pump tube collapsed Visually check the tube. Replace the Ink System Assy

Cap is dirty

Tube is disconnected from Visually check for disconnection Cap

Cap does not slide up Check for installation

properly assembl

Tube Ink Tray Assy - l/S Assy collapsed

Cause

Printhead Alternate cleaning and t

or

clogging

ged

prop

erly

Cause

or

damaged.

bottom bottom.

between the Waste

I

Check for debris adhering to the Cleaner Blade. Clean

Check to see

Check that Ink Tube connections are complete. Reassemble Ink

Tab

le 3-12.

Troub

I

Check for foreign object adhering to the Cap damaged Cap. replace the Ink System

y.

Check the tube connection Ink Tray Assy and the tube route under

Check

Point

ester.

est

printing several times.

if

there is ink leakage from the Printhead.

leshooting for Faulty Ink Supply

Check

Point

or

of

the

tub

e from

of

compression spring on the tube

on

the bottom

the

of

tray.

the Waste

I

Connect

Repla

When the condition is not improved even after clean

Install the ink Adapters properly.

If

this does not improve the con

or

Faulty Waste

I

Remove foreign object from the Cap with a cotton swab.

Cap

Connect the tube properly.

R

ep

Connect the tube

rratic

Remed)

the

FFC firmly.

or

replace the Cleaner Blade.

ce

the FFC.

dit

ion, replace the ink Adapters and the Printhead.

se

crumpled Ink Tube.

Tube

s and compete their connections.

Ink Disc

lace the Ink System Assy with a new one.

of

harge

Re

med)

As

sy.

the Waste Ink Tray Assy proper ly, and route the tube properl

in

g, replace the Printhead with a

If

the Cap is damaged,

y.

TROUBLESHOOTING

Troubleshooting

When

There is No Error Display 33

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JO

series Revision A

3.3.4

l/F

Related Troubleshooting

This section describes the troubleshooting for the USB I/F and Memory Card Slot.

D USB

Host PC does not support Windows XP essentiall

Print not installed correctly.

Defective USB Operation is normal cable replaced?

Poor contact foreign matters in the

Defective m board damaged.

Cause

er

driver is

IIF

y.

ai

error

Table 3-13. USB

I

On

Windows, open "My computer"

~"Property"~

"Universal serial bus controller" is effective?

On Wi ndows, open "My computer"

~"Property"~"Device

Printer driver is installed devices" by mistake?

Check to see if there is no adhesion

connector.

n Ch

eck

Check

"Device manager". Remove the USB driver , and

ifUSB

to see if the main board is not

IIF

Point

manager".

in

"Other

cable

is

USB interface

Error

I

in

stall it again.

Delete the driver and install it again according to operation manua

Replace the USB cable.

of

Remove the foreign matters, and clean the contact.

Replace the main board.

Remed~

l.

D Troubleshooting for Memory

Table 3-14.

Cause

Driver has not Check to see if a memory card been installed is recognized

correctly. mode.

Data has been Data on card may be destroyed

destroyed. due to sta

A memory card other than those specified is used.

Memory card is Check to see

faulty. card can be recognized.

Poor contact. are not adhering to memory

Firmware has abnormality.

Electric noise, etc.

has been generated.

Defective main Check to see if the main board

board is not damaged.

I

Check the card to see if it is one of

Check to see if foreign matters

card or slot.

Check to see if the FFC is connected correctly and the After the Ferrite Core is positioned in abnormality, replace the main board. place inside the printer.

Check

ti

the spec

Card

Slot

Trou

bleshooting for Memory

Point

in

the single Assy

c electricity. PC.

ifi

ed cards.

if

another Memory

---

Card

I

Temporarily rem

install it agai

Check to

If

not, format the card.

Use a specified memory card.

Use a new memory card.

Remove the the contact.

Update firmware.

Replace the main board.

Rcmcd~

ove

the driver, and then

n.

see

if

card data is read by a

fo

reign matters, and clean

conftrmation,

if

they have no

TROUBLESHOOTING

Troubleshooting

When

There is No Error Display

34

Confidential

L850 series/L8JO series

easyfixs.blogspot.com

Rei·isio11

A

3.3.5 Troubleshooting for

Scanner

This section describes repair/service for the Scanner mechanism.

id

entify the trouble at the Assy level based on the observation.

first

in

According to tbe observatioo as described checking by referring

D Scanner

Errors

to

the appropriate table.

at

User Level

Table 3-15. Scanner

Error

Scanner

Co

mmand error Undefined command is detected.

Scanner open Scanner cover is open. Clo

0 Observation

I

• D

efec

error

• Defective scanner motor

• The scanner carriage is interfe ring with any

of

Trouble and Reference for Remedy

Tab

le 3-16. Observation

Ohscnation

Cause

tive CIS unit

ot

of

Table 3-16, perform the oecessa

Errors

at

User Level

I

• Repla

ce

the scanner

• Remove the obstacl

her part.

correc

When status is

Turn the power on again.

se

Troub

le and Reference for Remedy

Description

t command is received, error

cancelled.

off

the

cover.

of

Trouhle

I

Even with power turn machine does not operate. initializatio

"Fatal error" occwTed. Indication error occurs and it is not

cleared even after power is turned

nc

e and then turned

o

ct

ure is n mmuni

ot rea cat

Pi "Co

Indication error occurs and when communication with the ho again, "Communication error" recur

ed

on

d clearl

ion error".

on, the

again.

y.

st

is tri

The mac

CR unit does not operate. Table CR unit operat

indicated.

off

The Pic

USB interfa

ed

s.

hine does not operate for

n.

es

but error is

LED does not light up. Table 3-20

tur

e is n

ot rea

d clearl

y.

ce error Table 3- 13

In

troubleshooting,

ry

Re

med~

CR

Unit.

e.

once and then turn it

I Reference for

Rcmed~

Table

Table 3-21

3- 17

3- 18

3- 19

D Scanner does n

Causl'

Connector is disconnected.

D

Carriage

ot

Tab

le 3-17. Scanner does not operate for initialization

unit does not operate

Tab

Cause

Connector on the Main

Board is disconnected

Faulty

ca

rri

age moving

mechanism

CR

Faulty

Defec

motor

ti

ve main board --·-

oper

ate

for initialization

Check

I

Check each connector for dis

connec

co

nnector disconnected?

Point

tion. Is there any

I Yes/l\o I

Yes

No

le 3-18. Carriage unit does not operate

I

Chcl·k Point

0 Is any

0 Grea

I.

2.

D Disconnect the

of

the connectors

(

CNl7, 19 and

Main

Bo

ard disconnected?

se

is applied

properly? Does CR motor operate

when power is turned with upper case removed?

Do

es CR unit move with

CR

mot0r removed?

(CN

17) of

the

from the Main B

ec

k continuity between

ch

pin I and pin 2 motor side, us tester.

20) on the

of

Scanner mechanism, replace the

connector

CR

Motor

oa

rd, and

on

the

in

g a circuit

I Ycs/l\o I

Yes Connect the connector.

No

ON

No

No Replace the

--

Rl·mcd~

Co

nnect the disconnected

connector. Repla

ce

the main board.

Re

med~

Apply grease at designat point

Check the

relevant parts and

Repla

car

ria

ge

or

reinstall them.

CR

motor.

ce

the main board.

moving

remove

ed

TROUBLESHOOTING

Troubleshooting When There is No Error Display 35

Confidential

L850 series/LS

easyfixs.blogspot.com

D C

arriage

JO

series Revision A

operates

but error

indicat

ed

Table 3-19. Carriage operates

Cause

Upper case removed. removed?

Defecti ve main board

of

scanner is Upper

D LED does not lig

Cause

Connector Board is disconnected board is disconnected? CN19 on the main board.

Defec

Defective main board

D

on the Main Connector CN 19 on main

ti

ve CIS Unit

Picture cannot

I

ht

I

Does the lamp light up when

be

read clea

Tab

Cause

Soiled docum ent table free from dirt and wiping

Defective CIS Defective main board

Unit

I

Is the document table (glass)

Chl·ck

Point

case

of

scanner is

---

up

Table 3-2

the CIS Unit is replaced?

0.

Check

LE

---

D does

Point

rly

le 3-2

1.

Picture

Check

Point

mark?

---

cannot

but

error

indicated

I

Yes/l\o

I

Y

es Install the upper case.

--- Repla

not

lig

ht

up

I

Ycs/l\o

I

Connect the connect

Y

es

Y

es

Repla

--- Replace the main

be read clearly

I

Yes/l\o

I

Clean the document table.

No

--- Repla

Replace the main board

---

Remed~

ce

the main board

Re

med~

ce

the CIS Unit.

Remed~

ce

the CIS Uni

or

board

t.

TROUBLESHOOTING

Troubleshooting

When

There is No Error Display

36

Confidential

easyfixs.blogspot.com

DISASSEMBLY AND ASSEMBLY

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

4.1 Overview

Description in this c

But some below

• js

section describes proce

Th

product. Unless otherwi

in

revers

4.1

.1 Pre

See the precautions given under the heading fo

llowing column when disassembl ing or assembling the produc observed, that could result "Warning". Precautions for any disassembly or assembly procedures are d un

der the heading "CAUTION". Chips for disassembling procedures are described

th

under reversed proce "REASSEMBLY". Any adjustmen described under remove any units or par diagrams starting.

se

g the disassembly procedure.

cautions

e heading "CHECK POINT".

dure of

th

in

the appendix. Read precautions described in the next section before

•

a

•

of

it

fir

st and follow the ins

specified, disassembled

in in

the disassembling, the procedure is described under the heading

e heading "A DJUSTM

ts

that are not described in this chapter, refer to the exploded

Di

sconnect the powe r cabl e before disasse mbling or assembling

th

e printe Always wear gloves injury fr

pr

otect sensitive micro

To

arge equipm

disch

in

access

g internal c

hapt

er is

appli

ed

to

L850 series/L810 series.

isn't appli ed to L810 series. For L810 series, see

tru

ction s.

dur

es for disassembling the ma

uni

ts or components can be reassembled by

"WA

RNING" a

jury or loss

ts

r.

om sha rp m

of life are described under the heading

If

the assembling proce

required after disassem

ENT

REQUIRED". When yo u have to

for

disasse

eta

l edges.

pro

ent, such as

ompon

ents.

mbl

cessors a

anti-sta

in

components

nd

"CAUTION" in the

t.

Things, if n

dur

e is different fro m the

blfo

g the units are

y a nd reas

nd

circuitr

tic wrist straps

sem

bly to avoid

y, use s

of the

escribed

, when

ot stri

tati

ctly

c

CAUTION

I

l

•

J •

•

en using c cleaning duri produ

cts c

Ma

ke the specified a series/L810 series. Use the special package for trans

Pri

or to disassembly a such as me Wh

en removing or insta

that

no coated s

ompr

essed a

ir

products; such as a

ng

repa

ir a

nd

maintenance, the use

ont

aining flammabl e gas is prohibited .

mory car

urfa

djustment

nd

ds.

ce is scrat

s when y

reasse

lling exte

ched a

ou

por

tat

ion .

mbl

y, remove the accessories,

rior

parts, t

nd

no coating is peeled

ir duster, for

of

such

disassemble th e L850

ake great

care

off

Wh

4.1.2 Tools

Use only specified tools to avoid damaging the L850 series/L8 IO series.

Ta

ble 4-1. Tool

'.\lame Tool

Pbjllips precisioo screwdriver 1

Phillips precision screwdriver 1

Tweezers

Note : All

of

the too ls listed above are commercially available. EPSON provides lhe tools

listed with

EPSON tool code.

s

l'ock

080530 080532

1

08056

1

4.1.3 Preparation before Disassembly

Make the followin

D When the M D When the CR

th

er than the home pos

o

a

nd

turning it OFF timely. (See 4.

D As soon as the repaired product has been returned to the user, there may be a case

a

mruntenance ca

A vo

id

reg

ularly replaced parts before disassembly.

expired, communi

re

pl

ace also the relevant service parts with new ones.

g preparations before disassembling the L850 series/L8 I 0 series:

ai

n Boa

rd

is to be replaced, make a copy

Unit is to be moved out of i

iti

ll

such a case,

occw·s because

if

possible, as foll

ca

te with the user to that effect.

ts

home position, locate it at a position

on before starting disassembly by turning the power ON

1.5

How

to

Unlock the Carriage

of

the expiration of the life

ows: Check the maintenance counter for

If

of the EEPROM data.

of

the life

of

any part is foun

If

th

e user's consent is obtained,

(p

.

39

a servi

))

ce part.

d almost

.

DISASSEMBLY

AND

ASSEMBLY

Overview

38

Confidential

L850

easyfixs.blogspot.com

series/L8JO series Revision A

4.1.4 Making a Special Tool for CSIC Board

The CSIC board (refer to p.

method for making the tool is described below.

1. Prepare a handle part

Figure 4-1. Making Special Tool for CSIC Board (1)

2.

Bend the metal wire as shown below.

of

74

) can

a clip,

be

easily removed by using a special tool.

or

a similar metal wire piece.

The

4.1

.5

How to Unlock the

0

Some

of

the disassembling operations require unlocking the carriage. In those

cases, carry out any

the carriage to other than its home position.

CAUTION

Be mu

of

the following operations

extremely st

be taken to avoid

caref

ul n

I

•

Tum

the pow

Unit becomes unlocked and moves away from the home po

• Until the printer in the direction

er

ca1Tiage

off

forcibly by disconnecting the power cable when the CR

is unlocked, turn the EJ Roll

of the arrow as shown in Fig. 4-3.

Carriage

to

unlock the carriage and move

ot

to damage the EJ Roller gear.

injury

from sh

arp

metal edges.

er

gear on the left side

sit

ion.

Extra

of

care

the

DISASSEMBLY

Figure 4-2.

AND

Making

ASSEMBLY

Special Tool for CSIC Board (2)

Special Tool

Overview

Figure 4-3. How to Unlock the Carriag

-

e

39

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

4.1.6 Checks

4.1.6.1 Factors which Affect the

HOW

TO

PLACE

REASSEMBLING

The

Ink

Supply

The

ink

in the ink tanks is vented to the atmosphere through this hole to stab

supply to the Printhead.

ea

k from the air release hole.

l ventilation to the atmosphere affected adversely. In order to prevent this from happening, make sure to place the

ow

as sh

n below after removing it.

Tank

and

Precautions before Disassembling

Pri

nt Quality

THE

INK TANK ASSY WHEN DISASSEMBLING/

Assy

of

this printer has an air release hole on the upper part.

If

the Ink Supply

If

the

ca

nnot be done properly and the print quality may be

Tank

Assy is tilted, the ink in the tanks may

air

release hole is sealed

up

with the leaked ink,

Lnk

Supply

Tank

4.1.6.2 Factors which Affe Ink

Leakage during Operation

lnk

may spill when removing the following parts from .

sect

This

ink

THE

ili

ze

ink

Assy

ion describes the parts that may cause ink spill

sp

ill

when removing the parts.

PARTS

- Joint

[

-

,.

THAT

MAY CAUSE INK

Parts

~

lnkSupply Tank

Assy

Ink Supply Tank Tube Assy (w/Valve Assy)

Adapter Removing the Ink Supply

ct the Safety of Service Personnel such as

I

Removing the

/ Ink Supply

D Remov

Tank

D Remov

Tank Tank Assy

the Adapter

and the means

SPILL

WHEN REMOVING

\\hen

ink

ma~

spill

ink

Supply

Tank Tube

Tube

Assy from the Joint

in

g the tubes

Tube Assy from the Joint

in

g the tub es

Tube

Assy from the Ink Supply

of

Tube

the

Assy

lnk

Supply

Lnk

Supply

Assy from

to

minimize the

[ Lorntion

A,B

A

c

e

Tnk

-

Supply D Removing the

Tube

Assy

I

Lnk

Removing the Ink Supply

D

from the Adapter

Supply Tube Assy

Tnk

Supply Tank Tube

from

the Joint

Tub

e Assy

Assy

A

,C

DISASSEMBLY

Figure 4-4. How to Place

AND

ASSEMBLY

Do

not plac!' the Ink Supply

lhe

air release holes down or to one of lhe

sides.

Oth Ta le

er wise. the ink in the Ink Suppl y

nk

Assy muy come up to the holes and may

ak

or the print failure may oc

the

Ink

Tank

Assy

Tank

cur

Ass~

.

·

wi

th

Overview

Figure 4-5. Location

40

Confidential

L850

easyfixs.blogspot.com

series/L8JO series Revision A

•

Di

MEANS DO

TO

MINIMJZE THE INK

SPILL

Even observing the points described in this section, ink may spill in the following situations. Therefore, be careful not the inside container

•

of the

print

er

or

its s

urroundin

to receive the leaked ink, or the like.

When removing the

Ink Supply Ta

Assy), some ink will spill from both e

gs by preparing

nk Tub

nds of

to

contamina

the

e Assy (w/Valve

the

tube

even

te

the

scharging preparation

1.

Remove the scr

2. Release the hook Dowel .

3. Release the Ink Supply the Middle Housing.

ew

(x 5)

of the Guide

1!1!1!!11111111!11!!!11~

of

the Guide

Tube

from rib, and release the Guide

Tub

e 1st and the Tube Hold

Tube

Sub , Release the Guide Tube from

Valve Lever is closed. When removing the

• tube

will spill.

Ink

Suppl y Tube Assy, all the ink in the

Tube

er

lst

(x 2) .

from

Before disassembling, confirm that the printer is

DISCHARGING INK

Discharg i.ng ink is reco mm ended only when disconnecting the Ink Supply Assy from the Ink Supply Tank. Before performing the above disconnection, discharge ink from t

he

Ink Supply Tank as follows.

Necessary tools

• Containers (x

•

• Injector (with a tip

• Clips (x

• Cotton swab (x 6)

2)

FROM

6)

THE INK SUPPLY TANK

for each di scharged ink

of

<j>3.2

mm)

• When disconnecting the Tube from the

Joint, a con tainer to receive the leaking ink to from getting co

•

Prior and

then disc

to

the

following

ntaminated

har

ge ink according to the procedure.

in the following condition.

Tank

Tube

Ink

Supp

ly

Tube/Ink

Supp

ly

Tank

ink may leak from the ink tube. Prepare

prevent

by

the leaked ink.

ste

ps, connect the injector with t

the

produc

he

tube

t

,

Figure 4-6. Discharging

4. Move the Carriage to right side .

5. Release the Joint from the rib

of

Guide

prepa

ration (1)

Tube I st.

DISASSEMBLY

AND

ASSEMBLY

Figure 4-7. Disc

harging

preparation

(2)

Overview 41

Confidential

L850

easyfixs.blogspot.com

series/L8JO series Revision A

• Discharging procedure

L.

Release the Ink Supply Ta

(p.41

))

2. Place the Ink Supply Tank Assy on a place where its bottom is higher than the of the Printhead.

top

3. To mini Tube , pinch

4.

Prepare a container for ink to discharge, then disconnect the Ink from the joint and put its

5.

To discharge the ink

mize

the ink leakage from the Ink Suppl y Tub e / Ink Supply Tank

th

e Ink Supply Tube I Ink Supply Tank Tube with clips

Fig

nk

Assy.(Ref

ur

e 4-8. Discharging

tip in

to the contain

in

the Ink Supply Tank Assy to the container.

er

to Disc

Ink

er for the ink.

harging prepara

(1)

tion

(x

2) .

Supply Tube

6. Move the Supply Tank Tube .

7. The

Ink

8.

Repeat step 4 to Step 7 for a T

ank.

clips (x2) so that only the ink to discharge can flow

in

k in the Ink Supply Tank is discharged into the container through the

Supply Tank Tub

•

It

is recommended that the be disc reassembling.

•

After

all the reassembling work is complete, the disch of each co befor e perfo ind

icated on the film of the

sta

ke them, and make sure to refill each

mi

orr

ect tank

c

e.

ll

ink tanks to discharge a

Figure 4-10. Discharging

ink

har

ged compl

lor

rming the a

from the c

ete

ly b

efore procee

sho

uld

be refilled back to the I

djustment. Co

orresponding ink suppl

lnk Supp

ll

ink in the Ink Supply

Ink

(3)

in the

Ink Supp

din

g to disassemblin

nk Suppl

nfirm the colors

ly Tank so as not to

ink back to the

in

the Ink

ly Tank should

g/

arged ink

y T

ank

y hole.

DISASSEMBLY

AND

ur

e 4-9. Discharging Ink

Fig

ASSEMBLY

(2)

Overview

42

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

4.1.7 Protection for Transportation

Before packing the printer for returning it to the user, secure it with

st

rong tape to avoid damaging the printer

make s

ur

e to check the points as foUows. D Securing each parts Secure the following parts with strong tape.

• Securing the Carriage Unit Pr

epare a piece

I.

Co

Put Pad Carriage on the Carriage.

2.

3. Attach the unfolded end left side Pull the tape towa

4. shapes

of

strong tape (lengt

nfirm that the Carriage Unit is locked in the h

of

the Carriage.

rd

the right side

of

the housing as shown in Fig. 4- 12 to secure the Carria

h:

of

strong tape (fold the other end back 5 mm) on the

or

ink leakage during transport, and

140

± 2

mm

, width:

ome posit

of

the housing and attach it tightly along the

:;a..--i

Carriage pushed to home

position

at the specified points

22

mm).

ion.

ge

Unit.

Figure 4-12. Sec

uring the Car

riage Unit

DISASSEMBLY

Figure 4-11. Sec

AND

ASSEMBLY

uring the Ca

rri

age Unit

Overview

43

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

• Secw·ing the Prepare two pieces

Install the Ink Supply

I.

2. Attach strong tape along the shapes Secure the Housing Middle, Ink Supply Tank Assy, and T st

rong tape (x2).

• Securing the Ink

l:nk

Tank

Top

of

strong tape (length: 90 ± 2 mm, width:

Tank

Assy to the printer.

of

Figure 4-13. Securing the

Tank

Bottom

Ink

the Tank Assy as shown

Supply

Tank

22

Top

mm).

op

Cover with

in

Fig. 4-13 to

• Securing the Stacker Cover Prepare two pieces

I.

Attach strong tape along the shapes Secure the Stacker Cover with strong tape (x2).

of

strong tape (length: 60 ± 2 mm, width:

of

the

22

mm).

Tank

Assy as shown in Fig. 4-15 to

Prepare a piece

I. Attach

DISASSEMBLY

of

stro

ng

tape (length:

st

rong tape along the shapes

Secure the Housing Middle and

Figure

4-14. Sec

AND

uring the Ink

ASSEMBLY

180

± 2

mm

, width: 22 mm).

of

the

Tank

Assy as shown in Fig. 4-.14 to

In

k Supply Tank Assy with strong tape (x2).

Supply

Tank

Bottom

Overview

Figure

4-15. Securing the

Stacker

Cover

44

Confidential

L850 series/L8JO series Revision A

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4.1.8 Packing methods

To

avoid the troub le, such as ink leaks. Products need to be packed following

to the procedure mentioned below.

"

Highland" the center

In

• :

•

Amount

of

in Ink Tank Porous

2

Pad

case

"Lowland" is

If

it is

apply a method

ink

place

F

Attach Not Attach Attach on the Ventilation Hole.

where

is

over

of

the

condition

Tab

ull

means

the

1,

OOOm

customer

applied.

same

le 4-2. Pe

N

ot

Fu

that

applied

altitude

asl .

who

exce

pt

as

before.

ttern

of

Full;

ll

Not

to

the

customer

difference

is in le

two cases

packing

Fill

ink up upper

Fu

ll; An original amount

with

ss

than

mentioned

who

service

lOOOm asl ,

limit

line.

of

is in

above,

ink is kept.

• All the caps Assy are securely closed.

•

The

opened ink

included

of

in

the box.

the Ink Supply Tank

bon

le is not

• The hooks (x2) Tank Assy are securely engaged

the Decoration Plate Rig

with

of

the Ink Supply

ht.

• •

DISASSEMBLY

Figur

e 4-16. Attaching the Porous

Information

Size : H 34mm x W 188mm x Smm

ASP

AND

of

Porous

Code : 155606000

ASSEMBLY

Pad

is

as

follows

Pad

Overview

45

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

•

Imp

ortant

1.

Attach the Porous Pad notin g that Porous Pad covers all Ventilation holes

of

Ink Tank.(Fig. 4-17)

2.

The

height positions

Ink Tank.(Fig. 4-18)

3.

If

the risk that the

tube.

points when attaching the Porous

of

Porous Pad is almost the same as the air chamber in

Porous

Pad

is

the

tube

(Fig. 4

attached

becomes

-1

9)

more

kink

up

because

remarkly

the

Porous

than

Pad

the

Pad

air

chamber , there

pushes

the

curved

is

pa11

the

of

•

Important

I.

Set

the tube to become loose curved as much as possible(Let the tube loose

on the right hand).

If

curve

of

points when hanging the

the tube is sharp,

it

might make the tube kink.(Fig. 4-19)

Ink Tank to

product

's

main body

DISASSEMBLY

Figure 4-17. Attaching the

A

ir

Chamber

Figure 4-18.

AND

The

heig

ASSEMBLY

ht

positions

Porous Pad

of

Porous

(l )

Pad

(2)

•

Overview

Figure 4-19. Cur

• Key point when pl

Never

ace the

ink may leak

or

print

the

ve

of

transporting

er

upright

print

er does

the tube

produ

cts

after

filling ink, otherwise

not

print

correctly.

46

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

4.1.9 Disassembly

and

Reassembly

Procedure

The flowchart below shows step-by-step disassembly procedure for L850 seri

component.

ST

~

--~----=====-

r

L--r--

r--

4.2.6

L--r--.J

r

4.i

.8M ain Board Uni1 ,

L

--r--

r4.2

"}"

E

L _ Tr

r ,

4.3

.I

Ach1p

L--r--.J

'4

.3.2 I

nk

L

--r--

'4.33 tnk Supply Tank

L

~ssr..::

M/B

C

ove

(/>.

60)

MJ

Fmmc/W"'

!!l_

Ass

1er

sec1io

Supply T

section

(11.68)

ec1ion

--,

r

(1>.58)

(p.58)_

n

(p

ube

!£:.

70

iCink,

.67)

Assy,

Tube,

2_ .J

4.2.7 EMI FramelWas1e Ink Tray

Ass

(

4.4. J

Pri nth

ead

.J

4.3.1 Adapterscciion (p.67)

.J

>.58

(fl

· 74)

4.2.5 Panel Unil

4.2.6 M/B Cover

4.2

.8

Mni

(

4.3

.2 I

nk

Supply Tube Assy

section (

n Bo

.60)

.68

ard

(p

.56)

(p

.58)

Unit

4.3.3 I

nk

)

Supply Tank Tube

Ass

section ( '·

es/LS I 0 seri

70)

es. When disassembling each component, refer to the p

You need to remove the they exist on the way to the The

color

•·

4.3.4 Ink Supply Tank As section (

·.

"71)

may differ from the final product.

sy

r

L

and shape

4.4.IOCR Unit

4.4.6 Trik

(fJ

-

-I-

- - - -

r

4.4.7

ASF

L

Syste

.8/)

Unit

(p.86)

~

(p.82)

parts/units shown in das

target

of the

printer

r 4.

4.T2 Up

L

--r--

r 4

:4.°

11 Paper Eje

L _

~sy(1.

4.4.13

u;;;i

-

,

.J

Fro

A!\S

age

indicated for the relevant

part

/unit.

illus

trated

in this manual

per Paver

Guides,

(p

.91) .J

ct Fram

e ,

89)

_ J

nt Paper Guide

( .92)

hed

line box

if

4.4.8

r ,

4.4.2 Linear Scale

L--r--.J

r 4.4.4

L - -0--.J

DISASSEMBLY

APG Unil

PF

EncoderiPF Scale,

4.4

.2 Linear Sc:Lle

(p

.83)

(p

. 76)

4.4.6 Ink

4.4.7

ASF

4.4.12 Upper Paper Guides

AND

ASSEMBLY

Sys1cm

( .8/ )

Unit

( .

91)

(p

(/>.

Unit

.82)

76)

4.4

.5

PF

Moior (p. 79)

4.4.9

CR

Mo

ior (

11.85)

4.4. l I Paper Eject Frame Assy (

Flowchart 4-1. Disassembly

Overview

,.89)

Procedure

4.4.

14

Was

1e Ink Pads

( .94)

4.2.10 Power Supply A

( J.

66)

ssy

47

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

4.2 Disassembly

4.2.1

D Parts/Components need D Removal procedure

I. Open the Paper Support Assy.

2.

Paper

Push the bushing the dowel with disengaging the Edge Guides.

Support

of

the Paper Support Assy, and then remove the Paper Support Assy

Figure 4-20. Removing the

of

Assy

to

be removed

of

the ASF Unit (left side)

Exterior

in

advance: None

Parts

in

the direction

Paper Support

of

the arrow to release

Assy

4.2.2 Stacker Cover

D Parts/Components need to be removed D Removal procedure

l.

Pull the Stacker Cover forward

2. Release the dowels (x2) that secure the Stacker Cover, and remove the Stacker Cover from the Lower Housing.

to

in

open it.

advance: None

DISASSEMBLY

When assembling protru

sion

of

the Edge Guide on the left

dowels

of

the

Paper Supp

Figure 4-21. Installing the

AND

ASSEMBLY

the

Pap

er Supp

ort

Assy in the

ort Assy, align

end,

and engage the

order sho

Paper Support

the

hole with the

wn below.

Assy

Disassembly

of

Exterior Parts

Figure 4-22. Removing the

Stacker

Cover

48

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

•

4.2.3 Document Cover/ ASF Cover

D Parts/Components need D Removal procedure

• Document Cover

1.

Open the Paper Support Assy

to

be removed in advance: None

ASFCover

I. Open the Paper Support Assy

2. Release the both guide pins

Unit, and remove the ASF Cover.

of

the ASF Cover fro m the holes

of

the Scanner

2. Lift the hinge part th

and remove

e Document Cove

F

igur

e 4-23. Removing the Document Cover

of

the Document Cover slightly and release 1he hooks (x2),

r.

H

ook

Figure 4-24. Removing the ASF Cover

I

DISASSEMBLY

AND

ASSEMBLY

Disassembly

of

Exterior Parts

49

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

4.2.4

•

0 Parts/Co

Upper

Housing/Scanner Cable Cover

The

Scanner

sc

rewdriver Housing; Unit before removing The

screws L-shaped s removing

5 (

p.51

Figure

mp

onents need to be removed

0 Removal procedure

I. Open the Scann

2. Release

arrow.

th

e hook

er Uni

Unit

cannot

for

removing

therefore

that

sec

crewdriver,

the

Scanner

).

I L-shaped screw

4-25. L-s

t.

of

the Scanner Cable Cover and remove it

be opened enough to use a general

the

screws

, this section describes removing the

the

Upper

ure

the

Upper

a s

tubby

Unit, in

dr

iver I

hap

ed

Screwdriver

in

advance: None

Housing.

Housing

driver

that

case, you

that

or

sec

ure

the

Upper

can

be removed with a

a s

imilar

tool

can

skip the step

Stubby driver

and

Stubby

in

the direction

Scanner

without

Driver

3 to

of

the

3. Close the Scanner Unit and remove the screws (x2)

Figure

4-27. Removing

the

Upper

of the hinge

Housin

g (1)

pa11

.

Scann

DISASSEMBLY

I Left insi

de

er Cable Cover

I

Figure

AND

4-26. Removing

ASSEMBLY

the

Scanner

Cable

Cover

Disassembly

of

Exterior Parts

50

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

CAUTION

When removing the Scann to damage the

cab

les

er Uni

of

the Scanner Unit connected to the

I

•

4. Pull out the hinge

5. While k arrow as shown in Fig. 4-28 to remove the Scanner

eep

of

the

Scanner Unit on the left side.

ing the

Scanner Unit open at 45 degrees, push it in the direction

t from the printer, be careful n

printer

of the

Unit from the right hinge.

ot

6. While holding the Scanner Unit, rem

.

Housing.

ove

the screws (x7) that secu

re

the Upper

Figure 4-29. Removing the Upper Housing (3)

7. Put

8. Pull the Panel

the

Scanner Unit on the Upper Housing.

Unit forward, and relea

P

ane

l Uni

t.

se

the hooks (x2) on

the

both sides under the

DISASSEMBLY

Figu

AND

re 4-28

. Removing the Upp

ASSEMBLY

er

Housing (2)

Disassembly

Be

careful

noc

damage cables

10

Figure 4-30. Removing the Upper Housing (4)

of

Exterior Parts 51

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

9. Lift a

nd hold

Scanner Unit

the Scanner Unit, and re

move

the Upper Housing.

If

a Mall comes off when installing the Upper Housing, align

the

grooves of the Mall

with

the

ribs

of

the

Upper

the Middle Housing.

Fig

ur

• When in (x3) on

•

When in

sta

the

sta

e 4-32. In

Hin

g the

rear

side

lling

the

sta

lling the Upper Housing

Upper

Housing, do not use

as

shown in Fig. 4-29.

Upp

er

Housing, tighten

the

order given in Fig. 4-29. When installing the

• screws in the

•

When

attac Scanner sec

Ca

ure it

with the hook.

hing the Scanner ble Cover to the hole

order

Scan

ner Unit to the

given in Fi

(See

Figure

printer,

g.

4-27.

Cab

le Cover, insert the rib

of

the Middle Housing, and

4-26.)

Housing

the

screw holes

screws in

tighten the

of

and

the

DISASSEMBLY

F

igur

e 4-31. Removing the Upper Hou sing (5)

AND

ASSEMBLY

Disassembly

of

Exterior Parts

52

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

4.2.4.1 Scanner Unit

This clause describes the disassembly/reassembly procedures

•

CAUTION

I

•

Scanner

• The Scanner Unit

•

Unit for L850 series.

Upper Housing using a general screwdriver. However, when

the removing the check point in therefore, make remove the screws

It

is difficult to remove/attach the cables with holding the Scanner Unit; therefore, the following explains the procedure while engaging the hing es without securing

shown below. Be careful for handing them, since the hinge sections may

of

is

not secured to the

Upper Housing using the tools specified in the

p.50, the Scanner Unit is sec

sure

to follow the check point in the steps

that

sec

ure

the Scanner Unit and the hinges.

br

eak easily when opening/closing the Scanner Unit.

print

er

when removing

ur

ed to the printer;

th

em by screws as

the

and

0 Parts/Components need to

Upper Housing

0 Rem

l.

2. Disconnect the

3. R

ova

l procedure

Insta

ll

the Scanner Un it

Scanner FFC (CN 19), the Scanner CR Motor Cable (CN 17) and

the

Scanner CR Encoder Cable (CN20) from the connector on the Main Board.

emove

the screw that secure the grounding wire.

be

removed in advan

to

the printer as instructed in Fig. 4-33.

ce

• • • •

DISASSEMBLY

AND

Figure 4-33. Scanner Unit

ASSEMBLY

Disassembly

of

Exterior Parts

Figure 4-34. Removing

the

Scanner

Unit (1)

53

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

4.

Peel

off

the acetate tap e, and release the a

from the grooves and ribs Pull out the Scanner FFC from the Ferrite Core

5.

of

the Middle Housing.

ll

cables and FFCs

A.

of

the Scanner Unit

If

you remove the Upp

th

e stub

by

driver

ur

ed with the screws. Ma

sec sec

ur

e the Sc

Figure

ann

4-27.)

er

Housing using the L-shaped screwdri

or

a similar

er

Unit before taking the following steps. (See

tool (p. 50), the Scan

ke sur

e to remove the screws (x2) that

ner

Unit is

ver,

•

6. Pull out the hinge

of

the Scanner Unit on the left side.

Figure 4-35. Removing the Scann

er

Unit (2)

Groove

0 Double

and

-s

ided

Rib

1ape

7. While keeping the Scanner in

arrow as shown

Fig. 4-36 to remove the Scanner Unit from the right hinge.

Unit open

at

45 degrees, push it

in

the direction

of

the

DISASSEMBLY

AND

ASSEMBLY

Disassembly

of

Exterior Parts

Figure 4-36. Removing the Scanner Unit (3)

54

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

When in through the

Scanner PFC A 5 3 Scann Scanner CR Grounding wir

sta

lling

the

Scanner Unit, route

the grooves

FFC

with double-sided tape.

er

CR Encoder Cable

Mot

or

Cable

e D 7

and

ribs

of

the Middle Housing,

B 5

c 5

the

following cables

and

secure

After routing the cables, Motor

4-35.)

m:

After routin g double-sided

• After routing the cables from slack

(See

put

the ferrit

cable in the

cables and FFCs into the hole on the Middle Housing.

Figure 4-37.)

gro

ove

the cables, sec

tape

as

shown in Fig. 4-35.

of

the

ure

the

e core

of the

Middle Housing.

th em with acetate

Main

Board

side, inse

Scanner

(See

Figure

tape and

rt

CR

the

DISASSEMBLY

AND

Figure 4-37. Routing

ASSEMBLY

the

Cables

Disassembly

of

Exterior Parts

55

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

4.2.5 Panel Unit

Do not disassemble the Panel Unit any furth in this section. Be corr

ectly due to the change in the

• •

D Parts/Co mponents need to be removed in advance

Upper Housing

D Removal proced ure

I. Disconnect the Panel FFC (CN24) from the conn

off

the Panel FFC from the M/B Cover.

2. Remove the screw that secures the grounding wire.

Pa

nel Board is removed from the Panel Up p

ca

use the touch panel may not function

ector on the Main Board and peel

er than described

ir

reassembling state

er

Housing.

if

th

Panel Unit

Groove

Grounding

e

wire

3. Remove the screws (x2) that sec ure the Panel Gear.

4. Remove the screws Unit and the Panel Hinges (x2) from the M/B Cove

Panel

(x

1 each) that secure the Panel Hinges (x2), and remove the

r.

I

DISASSEMBLY

Figure 4-38. Removing the Panel Unit (1)

AND

ASSEMBLY

Disassembly

of

Exterior Parts

Figure 4-39. Remov ing the Panel Unit (2)

56

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

When attaching the Panel

of

protrusion

the Panel Unit with

Gear

to the Panel Unit, align the

the

groove of the Panel Gear.

Route the grounding wire through the groove

it

shown in Fig. 4-38 and secure When installing the Panel Unit, make

A

and B of

shown below.

•Point

• Point B:

the Panel

A:

Insert

x3) of

( Insert of

the M/B Cover.

Gear

the ribs (x3)

the M/B Cover.

the small box

to the Main Board with the screw.

sore

with the M/B Cover properly as

of

the

Panel

of

the Panel

of

the

M/B

Cover as

to

engage the point

Gear

to the grooves

Gear

to the hole

DISASSEMBLY

Figure 4-40.

• When installing the each)

of

the Panel Hinges with the dowels (x2 each)

•

Covers. Make the Make

(See Figure 4-39.)

sure

that

Panel

Unit.

sure

of

the following when attaching the Panel Sheet.

• Before attaching the Panel Sheet, wipe off the

Panel Unit surface thoroughly with a soft cloth

on moistened with diluted alcohol.

AND

ASSEMBLY

Installing

Pane

the Panel Unit moves smoothly

the

Unit, align the positioning holes (

Panel Unit (1)

after

the

x2

of

the

M/B

installing

adhesive left

Disassembly

..

D

of

Exterior Parts

~ ;

R

ib

0 Groove

~;

Small box

0 Hole

Figure 4-41. Installing the Panel Unit (2)

After removing/replacing the Panel Unit, make the specified

(See

adjustments.

Chapter

5 "ADJUSTMENT".)

Confidential

57

L850 series/L8JO series Revision A

easyfixs.blogspot.com

4.2.6 M/B Cover

D Pa1ts/Components need

Upper Housing

D Removal procedure

I.

Release the Cover Open disconnect Board.

I Panel Unit

the

Cover

Open Sensor

Figure 4-42. Removing

to

be removed in advance

Sensor

Cable from the hook

Cable

(CNS) from

the

of

the

M/B Cover, and

the

connector

M/B Cover (l)

on

the Main

4.2.7

D Parts/Components need to be removed in advance

D Removal procedure

EMI

Upper Housing

CAUTION

Frame/Waste

Ink

When removing the Waste

the

contaminate

surrounding

Tray

Ink

Assy

Tray

Assy, take

objects with waste ink .

I

•

1.

Unlock the Carriage and move the Carriage Unit to the center

(See " 4.1.5 H

2. Remove the screws (x2) that secure

3. Remove the screws (x2) that secure the Waste Ink

Tra

Pull

4.

out

Ink

Tray Assy.

ow

to Unlock the Ca1r iage '' ( p.

y Assy.

the Waste Ink

39

))

the

EMI

Frame

Ink

Tray Assy, and lift the

Tube

from the Waste Ink Tray Assy, and remove the Waste

EfJ

When ins

1alling 1he Waste

Assy, make sure the is ins

ial

led properly. (p. 90)

extra

of

the printer.

, and remove the

Ink

EJ

Tray

Frame spri

care

EMI

ng

not to

Frame.

Waste

2. Remove the scr

DISASSEMBLY

ews

(x4) that secure the M/B

from the Middle Housing.

Figure 4-43. Removing the

AND

ASSEMBLY

Cover

M/B

, and r

emove

Cover (2)

the M/B

Cover

Disassembly

of

Exterior Parts

Figure 4-44. Removing

the

Waste

Ink

Tray

Assy

58

Confidential

L850

easyfixs.blogspot.com

series/L8JO

series

Revision

A

P.!1

Reassembly procedure

0

Route the Waste Ink

lllf:.41.

Open the small window

hook).

Connect Waste Ink Outlet and Waste

small window.

Tube

through the rib

Figure 4-45. Routing the Waste Ink Tube

of

Housing middle (small window has a

of

the Lower Housing.

Ink

Tube with tweezers from

CAUTION

I

• j

l

---~

ADJUSlMENT

REQUIRED

,r

When connecting

Do not press the Waste

•

Ink

Tray

• Route the Waste rib

of

the Lower Housing without any twisting. (See Figure

4-45.)

• Wipe

After removing/replacing the Waste speci

the

adh

ering to

and

may come off easily.

fi

ed adjustments. (See Chap

the

Waste

Ink

Ink Tub

Assy. Otherwise,

Ink

Tube with red line facing up through the

ink off the

the

joint

area

Tube, be careful

the

area

, the tu

ter

of

the following:

e when installing the Waste

ink may leak.

of

the tube, if any. With

be cannot

Ink

5 "AD.JUSTMENT"

be connected firmly

Tray

Assy, make the

ink

.)

left

DISASSEMBLY

Figure 4-46. Connecting

AND

ASSEMBLY

the

Waste

Ink

Tube

Disassembly

of

Exterior

Parts

59

Confidential

L850 series/L8JO series Revision A

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4.2.8 Main Board Unit

Thi

s section describes the disassembly

of

the Main Board Unit When removing Housing may bend by and

it may cause

and

positioning holes

To

prevent under and the Middle

this from

the Middle Housing with bottom side up as shown below,

remove

or

Hou

for

L850 series/L810 series.

or

ins

tamng th

app

lying the force using

of stre

ss whitening

of

the

Card Slot

happ

ening, ins

install the Main

sing with

the

s.

/rea

ssembly procedures

e Main

Board

around

the screw holes

Cover.

ert

the

Ink

Board

Unit while supporting

Unit, the Middle

the scr

ewdriver,

Cartridge

s (x2)

0 Parts/Components need to be removed in advan

Upper Housi Rem

0

l.

Di

sconnect the following cables from the connector on the Ma

CN3

Power Supp ly

CN4

CDR

CN6

PE Sensor cable

CN7

APO Sensor cable Black

CNS PF Encoder FFC 5 CN9

CDR

CN

13 PF

ng

I Panel Unit I MIB Cover

ova

l procedure

Unit

cable

Guid

e Sensor cable

Tra

y Sensor cable

Motor

cable Black

Whi Wh

ite

White

Whit

te

e

CN

3

2

3

2 2

l4 CR Motor cable

CN

IO

CN

ll Head FFC

CN

12 Head FFC

CN

16

ce

Head FFC

H

ea

d FFC

in Boa

Whi

rd.

te

lo

2

13 13

9

6

0

DISASSEMBLY

I. Pr

ess

(See

2.

Insert the Ink

outside the

AND

down the Stacker

Fi

gure 4-73( p. 78).)

dow

Cam

els

idges (x2)

Lev

er

to make the Stacker Assy to the

(x2)

with the bottoms side

on t

he

Middle Hou

sing.

up

under the spaces

Figure 4-47. Supporting the Middle Housing

ASSEMBLY

CDR

position.

Disassembly

of

Exterior Parts

Figure 4-48. Removing the

Main

Board

Unit (I)

60

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

2. Remove the screws (x5) that secure the Main Board Unit.

3. Lift the rear side of

the Card Slot Cover.

rib

of

the Main Board Unit, and remove it while avoidjng from the

• • • • •

•

• • •

• • • • •

• • • •

• • • • •

• • • •

•

• • • •

• • • • •

• • • •

Figure 4-49. Removing the

Main

Board Unit (2)

See

the foll

owing for routing

C'ahk

/FF<.

P

ower

Supply Unit cable Rib A

CD

R Guid e

Sensor

cable Rib B CDR Tray PF Motor CR PE Sens APG PF

Sen~or

cable Rib B

cable

Mot

or

cable Hook B

or cabl

e Hook e

Sens

or cab

le

Encoder

FFC

Hook/IW1

I

Hook

HookC

---

the

cables to the Main Board Unit.

tapt'

I

c-.:

CN CN4

CN9 CNl3 CN14

CN6

CN7

CNS

A

l>nuhll'-sidl'd

I

-

--

...

---

--

---

x2

!\o.

3

m:

DISASSEMBLY

When installing the Main Board Unit, align the positioning holes (x2) Ca

Tighten the screws in

AND

rd

Slot Cover.

ASSEMBLY

of

the Main Board Unit with the dowels (x2) of the

(See

Figure

the

4-49.)

order

given in Fig. 4-49.

Disassembly

of

Exterior Parts

Figure 4-50. Routing the

Cab

les

61

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

0

Di

sassembling the Main Board

1. Remove the screws (x2) that secure Plate M/B Uppe

Shield

r.

th

e Shield Plate M/B Upper, and remove the

When installing

the

th

order

tighten When installing in

the

Main Board to the Shield Plate M/B Lower,

e screw in the

th

e Shield Plate M/B Upper, tighten

given in Fi

order

given in Fig. 4-52.

g.

4-51.

the

screw

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

Shie

ld

Plate M/B Upper Q C.B. 3x6 (4±1 Kgfom)

Figure 4-51. Removing th e Main

2. Remove the screws (x2) that secure the Ma th

e Shie

ld

from

Plate M/B Lower.

• • • • •

•

• • •

..

""

..

• • • •

• • • • •

• • •

•

• • • • •

• • •

•

• • • • •

• • • •

Q C.B.S.

Board

in

Board, and remove the Mai.n Board

(1)

3x

6 (8.5±0

.5 Kgfcm)

After removing/replacing the Main Board

(See "

adjustments.

ADJUSTMENT"

(p

Unit, make

.95

).)

the

specified

DISASSEMBLY

Shie

ld

Plate M/B L

ower

Figure 4-52. Removing the Main

AND

ASSEMBLY

0 C.B.S.

0 C.B. 2.5x6 (

Board

(2)

3x

l2 (8.5±0.5 K

4±

1 Kgfcm)

Disassembly

gfcrn)

of

Exterior Parts 62

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

4.2.9 Middle Housing

If

you do not intend to replace the Middle Housing, you can remove and

•

0 Parts/Components need to

Upper Housing I Scanner Unit I Panel Unit I M/B Cover I Main Board Unit I Frame/Waste lnk Tray Assy

0 Removal procedure

I. Remove the scr

Housing.

th

e Middle Housing togeth

the Card

ew

Slot Cover.

be

that secure

removed

the

er with the Main Board Unit

in

advance

hinge, and remove

the

hinge from the Middle

EMI

2. Rem Cover.

ove

the screws (x2) that secure the Card

Ca

rd Slot Cover

Fig

ure

4-54. Removing the

Slot

Card

Cover

, and remove the Card Slot

ID

Positioning ho

IO

C.B.P. 3x 10 (6±1 Kg

Slot Cover

le

and

dow

el I

fcrn

)

DISASSEMBLY

Figure 4-53. Removin g the Hinge

AND

ASSEMBLY

. . 3x 10 (6±1 Kgfcm)

Disassembly

of

Exterior Parts 63

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

Wh

CAUTION

I

•

3.

Remove the screws (x6) that sec ure the Middle Housin

en remo ving the Middle Housin

cables, the PF Encoder, the

(p.83). Be careful not to let

these parts when removing the Middle Housin

th

g,

it m

ay

tou ch and damage the

PF

Scale (p.

e Middle Housing interfere with

79)

or the APG Unit

g.

e wit out comp ete y removing

4. Push outward

remove the Middle Hou Unit.

on the left and right sides

si

ng while avoiding the

of

the Middle Housing

PF

Encoder,

to

widen i

PF

Scale and APG

t,

and

Figure 4-57. Removing the Middle Housing (2)

Remove Housing Middle while l

ett

ing it pass through Ink Tank

Assy.

DISASSEMBLY

Figu

re

4-55. Removing the Middle Housing

AND

ASSEMBLY

Disassembly

of

Exterior Parts

Figure 4-58. Remo ving the Middle Housing (3)

64

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

When in from the point A not

to damage

Figure 4-59.

• When in between the

sta

lling

the

sta

lling

Front Frame

the

Middle Housin

and

other

cab

cables

by

insta

lling the Middle Housing (1)

the

Middle Housing,

and

g,

pull

out the Head

les from the point

B.

letting them get caught.

rout

e the Head

the

Midd

le Housing.

Be

FFC

FFC careful

When installing Front

Frame Housing, the hooks.

the

Middle Housin

Ground

and

then slide

Make sure that

Plate with the hole

surely comes in contact with the

Figure 4-61.

• Tighten the screws in

• When installing of

the

Card

Slot Cover with the dowels

(See

Figure

•

For

routing the cables, see

4-54.)

the

Insta

the

Card

g,

it

in the direction

the

Fro

nt

Front

align the hooks (x2)

of

the

Midd

of

the

arrow

Frame

Gro

und Plate

Frame.

of

le

to sec

lling the Middle Housing (3)

order

given in Fig. 4-55.

Slot Cover, align the positioning holes

of the Middle Housin

Figure

4-54(p.

63

).

the

ure

g.

DISASSEMBLY

Figure

AND

4-60. Installing the Middle Housing (2)

ASSEMBLY

Disassembly

of

Exterior Parts

65

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

4.2.10 Power Supply Assy

D Parts/Components need

Upper

Housing I Scanner

Middle

Housing I Printer

D Re

moval

procedure

I. Remove the screw that secure the P/S Assy, and remove the P/S Assy from the

Lower Housing.

to

be removed in advance

Unit

I Panel U

Mechani

sm

nit

I M

/B

Cover I Waste

lnk

Tray A

ssy

I

When in Connector Cable on 4-63.

m:

When installing the Connector Cable in the groove

P/S Connector Cable through the ribs (x3)

the Housing.

sta

lling

the

Pow

er

Supply Assy, route the

the

ribs

of

the

PIS Assy,

put

the ferrite core

of

the Lower Housing ,

PIS

Assy as shown in Fig.

of

the Lower

the

and

PIS

route

DISASSEMBLY

Figure 4-62. Removing

AND

ASSEMBLY

the

P/S Assy

Disassembly

ADJUSTMENT

REQUIRED

,r

of

Exterior Parts

Figure 4-63. Installing

After removing/replacing the

specified adjustments. (See Cha

the

P/S Assy

Power Supply Board ,

pt

er S "ADJUSTMENT".)

make

the

Confidential

66

L850 series/L8JO series Revision A

easyfixs.blogspot.com

4.3 Disassembly of CISS section

4.3.1 Adapter section

D Parts/Components need to

Upper Housing I Scanner Unit I Panel Unit I M/B Cover I Main Board Unit I Waste Ink Tray Assy

4.3.1.1

Adapter

Cover

be

removed in advance

EMl

Frame/

4.3.1.2

Adapter

DISASSEMBLY

• When attaching the Adapter Cover, align the dowels (x2) with the holes (x2) on the Carriage

• Take care not to catch the

• After installing the Adapter Cover to the Carriage Unit, move the Carriage Unit from side to side whi le holding the Timing Assy does not apply extra load

Unit, then engage the hook.

lnk

Supply Tube Assy.

of

the

AND

ASSEMBLY

Be

lt to make sure that the lnk Supply Tube

Carriage

Unit movement.

Disassembly

of

!

r.

~

CISS

Be

careful not to damage or peel

Use a precision screwdriver when re leasing the hooks When connecting the Ink Supply Tube lo the Adapter, take care not to connect it to a

wrongjoiJll.

off

the film

of

the Adapter.

of

the Adapter.

section

Confidential

67

L850 series/L8JO series Revision A

easyfixs.blogspot.com

4.3.2 Ink Supply

Tub

e Assy section

D Parts/Components need to be removed in advance Uppe

r Housing I Scanner Unit I Pan

nk

Tray

Waste I

4.3.2

.1

I Cross Sec

Assy

Tub

e Guide Sheet/Tube Guide Sheet S

Tube Gu

ide Sheet

ticm

I

el

Unit I MIB Cover I Main Board Unit I E

ub

Tub

e Guide Sheet Sub

MI

Frame/

4.3.2.2

Tub

e Guide Sheet (w/

Tub

e Gui

de

Sheet sub)

DISASSEMBLY

Refer the figure above and

Sheet Sub to

I.

Insert the section A Sheet from the bottom.

2. I Sheet from the top.

the

nse

rt the section A

Tube Guide Sheet.

of

AND

ASSEMBLY

follow

the procedure bel

the Tube Guide

the Tube Guide Sheet Sub

Shee

t Sub

ow

when attaching

into

rhe hole I

into

the hole 2

the

Tube Guide

of

rhe Tube Guide

of

the Tube Gui de

Disassembly

of

CISS

I Fold

at

a rig

ht

Follow

the procedure below when installi

sub).

I.

Insert the tabs (x2) on the Tube Guide Sheet (x2 ) on

the

[nk Supply Tube Guide 2nd, th

Guide Sheet sub) to the printer.

2.

Install

the

lnk

Supply Tube Assy. (p.69)

nse

rt the

3. I Guide

4. Engage the hol hooks (x3) on the Carriage

Sheet sub) on the Carriage Uni

section A of

Sheet Sub from the top to

the Tube Guide Sheet Sub (x2)

es

(x3) on the Tube Guide

Un

section

angle. I

ng

the Tube Guide Sh

secure

it.

it, and auach

t.

eet (wffube Guide Sheet

(wff

ube Guide Sheet sub) in the hol

en

attach the Tube Guide Sheet

into

the hole

Sheet (wff

the Tube

ube Guide Sheet sub)

Guide Sheet

(wffube

of

the Tube

with

(wff

ube Guide

Confidential

es

the

68

L850 series/L8JO series Revision A

easyfixs.blogspot.com

4.3.2.3

I

Ink Supply Tub

I.Joint sidel

Yellow

Black

Lig

h1 Cyan

Lig

h1

Magc Magenta

Cy

Ink

.....

~

nm

.,.,..

an

Supp

e Assy I

_

-

I

Marking

ly

Tube

~.

I

Position A I

Assy

I

Ink Supp

~

I

ly

Tube

I

(9±

I

·-

--

~/

I

Mark

ing

Po

344 ± I

sition B I

71

± I

I

\

Mark

I

Ada

11t

cr

Assy side I

89

± I

U

nit

: nun

ing Position C I

!

Gt]

DISASSEMBLY

• Make sure the Tube Clamp (x2) are align

• When instal. Follow

Attach the Tube

I.

2.

Connect lhe

3. Attach the

Assy.

4. Connect the

5. Route the

ling the Tub

the procedure b

Guid

Ink

Supply Tubes (x6 ) to the Joint. (

Tub

e Holder

Ink

Supply

Tnk

Supply Tubes

AND

e Holder, take ciu·e not to catch the

elow

when insta

e Sheet

(x3)

Tub

ll ing the Ink Supply Tube Assy.

(wtrube

and

sec

ure them

e to the Adapter, and install the Adapter to the Carriage

thr

ough the grooves on the Carriage U

ASSEMBLY

ed with the

Guide Sheet sub) on the printer. (p.68)

Marking

p.

7 J)

wit

h the screws (x

Position B shown above and attached on the

lnk

Supply Tube Assy.

I each). When attaching the one nearest

nit

, and align the

Disassembly

Unit.

Markin

of

(p.67)

g Pos

CISS

iti

on Con the

section

Ink

Supply Tube Assy.

to the 1

30

digit

Ink

Supply

sid

e.

align

Tube

it

with

the

s with the edge

Marking

of

the grooves

Pos

ition

A on the

as shown in

Ink

Supply

Tub

the figure above.

Confidential

e

69

L850 series/L8JO series Revision A

easyfixs.blogspot.com

4.3.3 Ink Supply Tank Tube Assy section

4.3.3.1 Ink Supply Tank Tube

1--

~~~~~

Ink

Ta

nk Tub

As

Supply

sy

e

-1

1i1-

~~~~~~~~~~~

2

59

± I mm

172± I mm

-u-

•

DISASSEMBLY

• Route the

without

• When connecting the

• Route the

• Route Ye

lnk

Supply Tank Tubes

any

twist.

cub

e through the arch on the

llow

, Black, and Light Cyan

AND

with

the red

lin

es

Ink

Supply Tank Tubes to the I

lnk

Supply Tank Tubes to the Ink Supply

Bottom

Tube Holder. Take care

of

the

Ink

Supply Tank

ASSEMBLY

facing upward

nk

Supply Tank,

Tank

Tub

(as

viewed when the

confirm

e Assy through the hole on the Bottom

the

insert the tub

not

to

catch the

Disassembly

Ink

color

indicated on the

es

to

the

Ink

of

Supply Tank Assy is install

full

and

mak

Supply

Tank

CISS

section 70

ed

on the printer) and connect them to the

film

of

the T

nk

Supply Tank, and take care not e sure the gaps between the end Tube then.

Tub

e Holder.

of

tubes and the ta

to

connect them

nk

are 0.5

lnk

Supply

Tank

with

wrong joint

mm

long

Confidential

Assy

s.

or less.

L850 series/L8JO series Revision A

easyfixs.blogspot.com

4.3.3.2 Joint

•l

~

\,

\

4.3.4 Ink Supply Tank Assy section

0 Parts/Co Upper

Wa

ste Ink Tray A

4.3.4.1 Ink Supply Tank Assy

mpooeut

s need

Housing I Scanner

ssy

to

be removed

Unit I Pan

el

Unit

in

I MIB

advance

Cov

er I M

ain

Board

Unit

I E

MI

Fra

me/

DISASSEMBLY

• Make sure the red lin upward.

• When attac hing the Joint, aljgn the cutout Tub

e Guide 1s

• Make sure the gaps between the end a

nd

the Joint are 0.5

• When connecting the Ink Supply Tank Tube to the Joint, take to a wrong

jo

AND

t.

int.

ASSEMBLY

es

of

the Ink Supply Tank

mm

long

or

less.

Tube

of

the Joint with the rib

of

Ink Supply Tank

and Ink

Tube

Supp

ly

Tube

facing

of

the lnk Supply

s or Ink Supply Tub

care

noto to connect it

Disasse

es

mbly

of

m

CISS

• Be careful not to damage or peel

• Be careful about h fa

ilure from occurrin

di

sassembling/reassembling (p.

ow

to place the Ink Supply Tank Assy in order to prevent printing

g.

(See

section

How

off

the film

to

place the Ink

40).)

of

the lnk Supply Tank.

Tank

Assy when

71

Conf1dent1al

L850 series/L8JO series Revision A

easyfixs.blogspot.com

4.3.4.2 Top Cover

I Refilling

Ink

Lab

el I

J

I

~

11.0±1

t

s1.1±J111111

To

p Cove r Label

I

mml

LABEL l"KL

Refilling l

EVEl

ok

Label

4.3.4.3 Holder

Tube

Tank

I Guide Tube

Tank

DISASSEMBLY

• Attach the

• When attaching shown in

Refilling

the

figure above.

AND

Ink

Label

the

Top

Cover Label, align

ASSEMBLY

LASELOE'IUINE

on

the position shown

l'IK

in

the figure above.

it

with the markings on the

Marki

ng

Top

Cover

Disassembly

as

of

Hold

er

Tube

Tank

When routing the

Va

Tube Follow the procedure below when installing the Tube Valve Holder Rear.

2. Align the dowels (x2)

3. Remove

4. Remove Guide Tube Tank

CISS

section 72

lve Holder Front without any twist.

I.

Remove screw(

Ink Supply Tank .

Ink

CD

screw( @

Supply Tank Tubes, align them with their

).

of

the Holder Tube Tank

and@).

of

hooks (x2) from Holder Tube Tank

with the

positioning holes (x2)

red

lin

es

of

facing the

of

the

dowels (x2) .

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

4.3.4.4 Bottom Cover/Left Cover/

I 8ottom

Cove

r I

Right

Cover/Cover

Joint

I Cover Joi.

I

Right

Cover I

at

I

;pj Tighten the screws in the order indicated in the figure above.

DISASSEMBLY

Be

careful about

(p.40)

.)

• The figures above indicate the hooks

• Remove

I. Remove the screws (

2. Remove the

3.

Remove the Cover Joint.

how

the

exterior parts

Left

AND

to place the

Cover

Ink

of

the

x8)

of

the Bottom Cover,

and

Right Cover.

ASSEMBLY

Supply Tank Assy in order to prevent printing failure

Ink

and

rib

s that

sec

ure the parts.

Supply Tank Assy

and

remove the Bottom Cover.

in

the

following

order.

Disassembly

from

of

occurring. (

CISS

See

How to place the

Ink

Tank

Assy when disassembling/reassembling

section 73

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

4.4 Disassembly the Printer Mechanism

4.4.1 Printhead

CAUTION

I

l~

·

~

D Parts/Components need to be removed

Upper Housing I Scanner Unit

D Removal procedure

L Unlock the Carriage.

(See "4.1.5 How to Unlock the Carriage"

2. Move the Carriage Unit to the center and then take out the a

3.

Release

and remove the Head Cable Cover by sliding it downward.

When removing the Head

•

Cover, do not use tools with damaged. Be

ca

_J

·

•

the

hook

reful not to damage the

disengaging the hook Handle the CSIC Connector Holder Assy carefully; especially

take

care not to touch it with

of

the

Head

Cable

Cab

le Cover and the Head

shar

p ends

as

FFCs

and cables when

of

the CSIC Connector Holder Assy.

your

bare hand

in

advance

(p

.39).)

Cover

on

the

right

side

the

FFC

or

not to bend it.

ll

ink adapters.

of the

CaITiage

FFC

may get

Unit

Figure 4-65. Removing the Head

5. Release the hooks (x2)

the Carriage Unit with the special tools (see p. 39), and remove the CSIC

Connector Holder Assy upward.

,

of

the CSIC Connector Holder Assy

FFC

Cover

on

the rear left/right

of

4. Release the hook tool, and pull the Head FFC Cover upward to remove

DISASSEMBLY

Figure 4-64.

of

the Head FFC Cover with the flathead screwdriver

it.

AND

ASSEMBLY

or

a similar

Disassembly

Figure 4-66. Removing the

6. Remove the screws (x3) that secure the Printhead, and lift the Printhead upward.

the

Printer Mechanism 74

CSIC

Connector Holder Assy

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

F

igur

e 4-67. Removing the Printh ead

7. Disconnect the Head FFCs (x2) from the connectors (x2) on the rear Printhead,

and

remove the Printhead.

of

the

..

mt

Make sure that Tighten the screws in In

stall

the

Head

below.

Head

FFC

The

sl

alignment.

.

·

Cover

bottom protrusions

iding sections

For

installin g After removing/replacing adjustments. (See Chapt

(x2)

must

rep

lacing the Printhead, note down the head

the

Priothead.

the

FFC

is connected properly.

the

order

FFC Cover and

(x2)

and the t

be

op

in

the

er 5 "A

given in Fig. 4-67.

Head Cable Cover as shown

Head

Cable

Engage the protrusion

carri age first and then inse

protrusions (x2)

Printhead,

DJUSTMENT"

Cover

10

the hole

make th

in

the rear

rt

the top

of the

ID

before

e specified

.)

with tl1

car

ria

ge

e

.

DISASSEMBLY

Fig

AND

ure

4-68. Releasing the Hea d FFCs

ASSEMBLY

Disassembly

the

Printer Mechanism

75

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

4.4.2 Linear Scale

CAUTION

I

l~

·

~

When you hold the

•

the top reading surface. Take care

~

.

Especially when putting the Encoder the CR Guide

About

~

Hold

If

you need to move the advance. (See

and

bottom surfaces with yo

that

durin

25mm

~0--

4.l.5

-- -- --

I I

here

Bow

to Unlock the C

the reading surface is

g reasse mbly work, Shafts does not

Hold here Hold h

•

D Parts/Components need to

Upper Housing I Scanner Unit I Panel Unit I Middle Housing

be

removed

Linear

Scale, hold its ends

Linear

take great

adhere

--

:

====

Carriage

c?

~~==

Unit, unlock the

arriage

in

advance

MIB

Cover I Waste Ink Tray Assy I

or

two points

ur

hand

s;

do

not

touch

not

soiled

or

scratc

Scale through the CR

care

that grea

to the reading surface.

About 45mm

ere

H

-

:

-

-----

---

1

==-.;

Hold

here

Carriage

(p

. 39 )

.)

of

the

hed.

se of

0

1

~

1

in

I Step 4. Turn it

/

by

90 degrees a

nd

release it

D Removal procedure

I.

Remove the spring from the left frame

2. Release the Linear

3.

Pull

4.

Turn the Lin ear Scale upward

DISASSEMBLY

Scale from the

out

the Linear Scale from the

AND

ASSEMBLY

of

the printer.

hook

at the right frame

CR

Encoder

by

90

degrees and release it from the left hook.

of

the

CR

of

the printer.

Unit.

Disassembly

the

Printer Mechanism

Figure 4-69. Removing the

In

sta

ll

the

Linear Scale with

Linear

the

cutting portion

Scale

upward.

76

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

4.4.3

•

Printer

CAUTION

I

•

Mechanism

This section desc th e

Print

er Mechanism for

• When lifting the Prin positions spec F

ram

e from being deformed .

Figu

• The

PF Mechanism Assy is degrees. ln such a case, the

eat

care

gr re

moved Printer Mechanism Assy. (Alt

PF

Scale (p.79))

rib

es the disassembly/reassembl y proce

LSSO

ter

ifi

ed in the figu

re

4-70. P

Scale comes in contact

rint

er

Mechanism Handling Precaution

turn

ed c

not

to damage the PF Scale when handling the

series/L810 series.

Mechanism, be su

re

bel

ow

to prevent the Main

with the floo

ount

erclockwise by about 15

PF Scale may

ernatively,

re

to hold the

r

if

be

damaged.

dur

the Prin

PF

es of

ter

Tak

e

Encoder/

0 Parts/Components need to be rem

Upper Housing I Scanner Unit I Panel Unit I M/B Cover I Waste Ink Tray Middle Housing

0 Removal procedure

l.

Peel

off

the acetate tape that

out

pull

the ferrite core from the groove

Figure 4-71. Removing the

ove

d in advance

sec

w·e the ferrite core

of

Prin

of

the

CR

the Lower Housing.

ter Mechanism (1)

Assy I

Motor Cable, and

DISASSEMBLY

AND

ASSEMBLY

T

Do

degrees,

tilting.

not t

ilt

more than 15

or

drag

Disassembly

it whil

e

the

Printer Mechanism 77

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

2. Rem

ove

the screws

Mechanism upward to remove it.

(x6)

that

secure the Printer Mechanism and lift the Printer

sta

Before in Stacker Stacker of

the Combination them to

lling

Assy operates

Lever.

Stacker

be

aligned

the

Print

er Mechanism,

proper

ly with the switching

If

it does not operate properly, check

Lever on the left side

Gear

14.4,45.6,

cor

rectly.

and

the

mak

of

the Lower Housing, the

Link

Stacker,

e sure

that

of

the

pha

and insta

the

ses

ll

m:

DISASSEMBLY

lo

C.B.

P.(P2).

Figure 4-72. Removing

When in

the secure it with acetate tape. Tig

sta

lling the

CR

Motor Cable in the groove

hten the screws in the

AND

ASSEMBLY

Printer

3x8 (6.1

the

Print

order

±1 Kgfcm)I

Mechanism,

(See

'-----------'

er

Mechanism (3)

of

the Lower Housing,

Figure

given in Fig. 4-72.

put

4-71.)

the

ferrite core

Disassembly

and

of

the

Printer Mechanism

ur

e 4-73. Phase Adjustment

Fig

After removing/replacing the

adju

specified After replacing the required lubrication.

stments. (See C

Printer

(See Chapter 6 "MAINTENANCE".)

Mechanism,

Printer

hapt

er

of the

Stacker

Mechanism, m

5 "ADJUSTMENT".)

be sure

to p

Assy

ake

erfor

Conf1dent1al

the

m the

78

L850 series/L8JO series Revision A

easyfixs.blogspot.com

4.4.4

D Parts/Components need to

D Removal pro

PF

Encoder/PF Scale

be

removed in advance

Upper Housing I Scanner Unit I Panel Unit I M/B Cover I Waste l Middle Housing

ced

ure

CAUTION

Handle the not touch it with y

PF

Scale with

our

bare hand.

care

not to scratch

I

•

I. Disconn

Encoder. Peel

2.

ect

the FFC

off

the double-sided tape that secure

of

the

PF

Encoder, remove the screw, and r

the

PF

Sca

nk

Tray Assy I

or

contaminate it.

emove

le, and remove the

the

PF

Do

PF

Scale.

4.4.5

PF

Motor

D Parts/Components need to be removed in advance

Upper Housing I Scanner Unit I Panel Unit I M

iddl

e Housing I Printer Mechanism I

D Removal procedure

1.

Peel

off

the acetate tape th

2. Release the PF Cab

le Holder Frame and the hook

3. R

emove

the Harness Holder.

Motor Cab

at

secure the ferrite core

le and the CR

of

MIB

Cover I Waste Ink Tray Assy I

PF

Encoder I PF Scale

Motor

Cable from the hooks (x2)

the ASF Unit.

of

the

PF

Motor

Cable.

of

the

DISASSEMBLY

Figure 4-74. Removing the

When installing the does not come in contact with the PF Scale.

AND

ASSEMBLY

PF

Encoder/PF Scale

Encoder, confirm

that

the reading

area

Disassembly

the

Printer Mechanism

Figure 4-75. Removing the

PF

Motor (1)

D Hook

0 Groove

79

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

4. Remove the screws (x2) that secure the PP Motor, and remove the

4-

Figure

When installing the black wire up.

76. Removing the

PF

Motor

Motor, make

sure

(2)

to

set

PF

Motor.

it

with the

ADJUSTMENT

REQUIRED

Wrap

acetate

Motor

Figure

When installing the

• core

as

•Route the hooks (x2) the

ASF Unit.

•

Put the ASF Unit,

After removing/replacing adjustment

tape

(x2)

Cable as shown below to secure them.

4-78.

the

following.

the

PF

Motor

of

the ferrite core

and

s. (See Chapter S

around

PF

Motor

PF

Motor, secure the cables

(See

Cab

the Cable Holder

of

secure it with acetate tape.

the

PF

Motor

CR Motor Cable

PF

Mot

or

Cable

Cable/CR

Figure 4-75.)

le

and

the

CR

Frame

the

PF

Motor

Cab

PF

Motor, make

"ADJUSTMENT"

Motor

Cable

and

Cable through

and

the hook

le in

the

specified

.)

and

the CR

the ferrite

of

groove

of

DISASSEMBLY

AND

Figure

ASSEMBLY

4-77.

PF

Motor

Disassembly

,r

the

Printer Mechanism 80

Confidential

L

easyfixs.blogspot.com

5,1

r · /

8

senes

,

1810

senes

· Revision A

4.4.6 Ink System Unit

D Parts/Components need to

Up

per Housing I Scanner Unit I Panel Unit I M/B Cover I Waste lnk Tray Assy I

Middle Housing I Printer Mechanism

be

removed in advance

When

installing the

through

the groove

Ink

System Unit, route the Waste

on

the

bottom

of the

Ink

System.

Ink

Tube

D Removal procedur

CAUTION

I

•

Remove the scr

I.

System Unit.

ews

e

(x2) that secu

re

the Ink System Unit,

and

rem

-0

ove

the Ink

~.

Figure 4-80. Routing the Waste

• When connecting the Waste Assy, wipe the ink off left

adhering

firmly

• When installing the System surely to

to the

and

may come off easily.

the

joint

area, the

Ink

System, inse

the

positioning holes

Ink

Tube to the Waste

area

of

the

tub

e cannot

rt the shafts (xS)

(xS)

Tube

tube

, if any. With

be

of

the frame.

Ink

Tray

connected

of

the

ink

lnk

DISASSEMBLY

Fi

gure

AND

4-79. Removing

ASSEMBLY

the

Ink

System Unit

IO C.P.S. 3x6

Disassembly

(8±

1 Kgfcrn) I

the

Ink

Figure 4-81. Installing

• Tighten the screws in

..

~

the

Printer Mechanism 81

After replacing

the

"qu;,..d lubdcaHon.

the

Ink

System Unit,

(Se<

Chap

order

t"

System Unit

given in Fig. 4-79.

be sure

to

perform

6 "MAINTENANCE".)

Conf1dent1al

the

L850 series/L8JO series Revision A

easyfixs.blogspot.com

4.4.7 ASF Unit

D Parts/Components need to be removed in advance

Upper Housing I Scanner Unit I Middle Housing I Printer Mechanism I Ink System Unit

D Removal procedure

I. Relea

2.

3. While being careful not to damage the Linear

se the

PF

Motor

Cable and the CR Motor Cable from the hook

Unit

on the left side. (S

Remove the scr

protrusions, lift the LD Roller Guide and release LD

Roller Guide.

ew

that secure the LD Roller Guide.

Pan

el Unit I

ee Figure 4-75.)

M/B

Cover I Waste l

Sc

ale, push the right and left

nk

Tray Assy I

of

the ASF

th

e hooks (x5), and remove the

4. Remove the right and left screws (x2) that secure the ASF Unit.

Q C.B.S.(P4). 3x6

Figure 4-83. Removing the ASF Unit (2)

5. On the front side, release the right and left hooks (x2) that th

e tip of the Change Lever from the printer frame.

6. Remove the Composite G

ea

r (10, 15.2), and remove the

I R

ig

ht

side I

••

sec

ure the ASF Unit and

ASF

Unit.

(8±

...

J

1 Kgfcm)

DISASSEMBLY

Figure 4-82. Removing the ASF Unit (1)

AND

ASSEMBLY

Disassembly

Co

mposite Gear

(

JO.

15

.2)

Figure 4-84. Removing the ASF Unit (3)

the

Printer Mechanism 82

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

When in gear, properly. (See Figure 4-84.)

m:

...

mt·

Tighten the screws in Install the LD Roller aligning

•

arrow

the sec

ur

After removing/replacing the ASF Unit, make the specifi

a

dju After replacing the lubrication. (See Cha

sta

lling the ASF Unit, make sure

the

chip of Change Lever

the order

on the blade

ely attached without any

of

and

given in Fig. 4-83.

the

arrow

the

shaft

gap

0

Figure 4-85. Installing the LO Roller

stments. (See C

hapt

er

S "ADJUSTMENT".)

ASF Unit, be sure

pt

er

6 "MAINTENANCE".)

that

the

composite

the hooks (x2)

on the LD Roller with

. Make sure the LD Roller is

or

misalignment.

to

perform

are

engaged

ed

the required

4.4.8 APG Unit

0 Parts/Components need to

Upper Housing I Scanner Unit I Middle Housing I Printer Mechani

0 Removal procedur

1.

Remove the screws

2. Remove the Composite Gear (IO,

e

Figure 4-86. Removing the APG Unit

gear

The

If

th e gears comes off when removing the APG Unit,

them referring to below layout.

(x2)

be

that

layo

removed

Panel

secure the

ut

on the

in

advance

Unit I M/8 Cover I

sm

APG

Unit.

15.5

).

rear of the APG Unit is shown below.

Waste

Ink Tray Assy I

and remove the APG

Unit.

attach

DISASSEMBLY

AND

ASSEMBLY

Disassembly

Fig

ur

e 4-87.

the

Printer Mechanism 83

Gear

Layo

ut

of

the APG U

nit

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

4.

When in

1. Install the Composite Gear

2.

sta

lling

the

Put

a pin (02mm)

Right PG Cam

APG Unit, follow

or

the like through the locat

on

the CR Guide S

the

(10, 15.5).

haft

proce

to the

dur

e below.

ing hole of the print

er

fram

e.

With the pins left inserted in the holes as shown in Fig. 4-89,

and

align

positioning holes (x6)

insert the dowels (x6)

I Step 4. Check engageme

of

the Main

nt

of

the

Fra

dow

APG

me.

els I

Unit to the

--

3.

Put Unit to the S

Figure

a pin

4-88. Installing

or the like

pur

through the locating hole

Gear

Step I. Ins

28.8.

tall

the Composite Gear (

the

APG

Unit (1)

of

the APG

10. 15.5)

ID Pos

itioni

ng hole and

Fi

gure

4-90. Installing the APG Unit (3)

5. lnstalJ the Composite Gear (IO, 15.5) properly to the APG Unit.

dow

el I

DISASSEMBLY

AND

Figure

4-89. Installing the APG Unit (2)

ASSEMBLY

(Continued to

the

next page.)

Disassembly

..

D

the

Printer Mechanism

Figure 4-91. Installing the APG Un

6. Tighten install the APG Unit .

After replacing the lubrication.

the

(See Chap

screws (x2) in

APG

Unit, be sure to perfo

ter 6 "MA

it

the

order give

INTENANCE".)

n in Fig. 4-86 to

rm the req

(4)

uir

ed

Confidential

84

L850 series/L8JO series Revision A

easyfixs.blogspot.com

4.4.9 CR Motor

D Parts/Components need to

Upper Housing I Scanner Unit I Panel Unit I Middle Housing I Printer Mechanism

ced

D Removal pro

I.

At

the rear

2.

At

the rear

3. Remove the Driven

ure

of

the printer, detach the

Figure 4-92. Removing the

of

the printer, remove the tension spring

be

removed in advance

Pulley from the Main Frame.

M/B

Cover I Waste lnk Tray Assy I

CR

Motor Cable from the frame.

CR

Motor

(1)

of

the Driven Pulley Assy.

CAUTION

I

•

4. Remove

5. Remove

Take extra care not to contaminate the Timing Belt wi

det

The belt

the

Timing Belt from

the

screws (x2), and remove the

eriorates faster if grease adheres to it.

the

pinion gear

Figure 4-94. Removing the

CR

of

CR

Motor.

the

CR

Motor

Motor.

(3)

th

grease.

DISASSEMBLY

..

Figure 4-93. Removing the

AND

-

ASSEMBLY

CR

Motor (2)

Disassembly

t:.

I

\

,..J,

~

. \

~

\

-

-~

the

Printer Mechanism 85

~-

r'

Figure 4-95. Removing the

CR

Motor

(4)

Q C

.P

3x4 (4±1 Kgfcm)

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

4.4.10 CR Unit

lnstaJI the CR

•

In

sta

make s When the CR

•

acetate tape

sho wn.

ll

the Timing Belt with the tooth side facing inside and ure that

Motor with

ur

e 4-96. Installing the

Fig

it

Motor

(18x20 mm, x3)

(See

Figure 4-92.)

its printed

is not twisted.

has been replaced with a new one, wind

aro

area

facing upward.

CR

Motor

und the CR Motor Cable

as

This section describes the disassembly/rea CR

Unit for L850 series/L810 series.

•

0 Parts/Components need to be removed

Upper Housing I Scanner Unit I Panel Unit I MIB Cover I Waste Ink Tray Assy I Middle Housing I Printer Mechanism I Linear Scale I PF Scale I PF Encoder I APG Unjt

Removal procedure

0

I. Remove the Driven

2. Peel

CPJ

off

the acetate tape, and release the Head FFC from the Front Frame.

Wrap aceiatc H

ead

FFC

with the hook

to

cape

avoid damaging the FFC

of

Pulley from the Main Frame.

( 18 x

50

111111)

around

Front

Frame.

in

advance

ssembly procedures

(See

Figure

4-93.)

Acetaie tape (

18 x 50

of the

mm)

...

mt·

DISASSEMBLY

After removing/replacing the adjustme After replacing the lubrication.

AND

nt

s. (See C

(S

ee C

hapt

ASSEMBLY

hapt

er

5 "ADJUSTMENT".)

CR

Motor, be sure to perform the

er

6 "MAINTENANCE".)

CR

Moto r, make the specified

Disassembly

requir

~

From

Frame

ed

Cl]

Attach

acetate

tape a

nd fold it

shown

above

to

FFC

with

the

Printer Mechanism 86

avoid

the

hook

of

Figure 4-97. Removing the

damaging Fro111

Frame.

as

the

CR

'

Acetate

tap

Unit (1)

e (18 x 50 mm)

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

3. Remove the screw that secure the Cable Holder Frame, and remove the Cable er

Frame.

Hold

Q C.B .

S. 3x6

(8±1 Kgfcm)

Figure 4-98. Removing the CR Unit (2)

4.

At the l

eft side of the printer, remove the spring, and mark the cont

Parallelism Bush with the frame. Then loosen the screw, a

nd

act point on the

turn the Parallelism

Bush toward the front.

5. At the right side of the pri.nter, remove the spring, the washer, and the Rig Cam.

Ri

ght side

Figure 4-100. Removing the

CR

---

Unit (4)

~

6. Remove the CR Unit together with the CR Guide Shaft from the left side

frame.

printer

Lift

th

e left shaft slightly and shift it to the right to

release it from the frame, and remove the CR Unit together with

th

e s

haf

t

}--

====

--·

ht

PG

of the

~

DISASSEMBLY

Figure 4-99. Removing the CR Unit (3)

AND

ASSEMBLY

Disassembly

the

Printer Mechanism

Figu

re

4-101. Removing the CR Unit (5)

87

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

In

sta

ll

the

PG

Left

Cam

After in engagement

Figure 4-98.)

m:

When in rib and

After in

•

several times

tension

•

In

stall the Timing Belt on the toothed areas on the inside below.

sta

lling

the

Cable Hold

of

the

protrusion,

sta

lling

the

CR Unit, rout

s (x3)

of

the

Front

Frame, and

double-sided tape. (See Figure 4-97.)

sta

lling the Head FFC

and

confirm

or

slack. (See Figure 4-97.)

er Fram and

then tighten the screw. (See

e the Head

secure

as

shown, move the carriage

that

the

FFC

carriage

and

outside

e, confirm the

FFC

through the

it

with acetate

is free from too much

properly

of

the

belt as shown

that

tape

the

the cam positioned outside

area

with sensing

With the cam

positioned o

ut

side

Figure 4-103. Installing the

of the APG Sensor

by mating

so

the D cut surfac

that

it does

CR

es

not

come in contact

unit (2)

and

with

Figure 4-102. Insta

lling the

CR

unit

Toothed

(inside)

oo

No t

id

(outs

(1)

th e)

• Install the

When installing the Cable Holder

•

po

sit

Before routing the Head

•

acetate tape on the two positions as shown in Fig. 4-97 damaging the When routing the He

•

as

shown in Fig. 4-97.

CR

Unit so

F

igur

e 4-104. Installing the

ioned correctly in the front

FFC

that

the guide is engaged with the frame.

FFC

along the

with the books

ad

FFC, secure the

CR

unit (3)

Fra

me, make sure

and

back direction. (Fig. 4-98)

Front

of

the

Front

FFC with

Frame,

Frame.

acetate tape

that

wrap

to

it

is

avoid

DISASSEMBLY

AND

ASSEMBLY

Disassembly

the

Printer Mechanism 88

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

4.4.11 Paper Eject Frame Assy

D Parts/Components need to

Upper Housi Mi

ddle Housing I Printer Mechanism

D Removal procedure

I. Release the Head FFC from the Front Frame.

2. Remove the scr

Fig

ure 4-98.)

3. Remove the screws (x2) that secure the Front Frame, and remove the Front Frame.

ng

I Scanner U

ew

that

be

removed in advance

nit

I Panel Unit I M/B Cover I Waste lnk Tray Assy I

(See Figure 4-97.)

secure the Cable Holder Frame to the Front Fram

e.

(See

4. Remove the Paper Eject Frame Assy from the printer.

Figure

4-106. Removing the

Align the s Eject

haft

Frame

holders (left a

with the

Pap

EJ

er Eje

nd

Roller S

ct

right

haft

Frame

Assy (2)

) on the bottom

.

of

the

DISASSEMBLY

Figure 4-105. Removing the

AND

ASSEMBLY

Paper

Eject

Fra

me Assy (1)

Disassembly

Fig

ur

e 4-107. Ins

the

Printer Mechanism 89

tal

ling

the

Paper

Eject Frame

Assy (1)

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

When in Right Carefully handle the eas

• When installing foot figure. Carefully h easily.

sta

lling

EJ

Frame

il

y.

Figure 4-108. Installing

of

the two

the

EJ Frame Assy, make sure

Springs

the

EJ

Fra

and

EJ

Fro

me

are

attac

hed

Frame

Assy as

the

Paper

nt

Fra

me, screw

Spr

ings to the slits as shown in the

le the

EJ

Frame

that

as

shown in Fig. 4-108.

the

springs come off

Eject

Frame

Assy (2)

it

after

sec

as

the springs come off

the LefU

urin

g the

After installing the the specified order. (See Figure

m:

...

~·

After installing the Cable Holder engagement

Figure 4-98.)

After in

•

several times or

Aft the specified After replacing the the required lubrication. (See

Front

protru

sions (x2), and then tighten the screws (x2) in the

of

the

protru

sta

lling

the Head

and

confirm

slack. (See Figure 4-97.)

er

removi ng/replacing the

adjust

ments. (See Paper

Frame, confirm the engageme

4-105.)

Fra

me, confirm the

sion,

and

then tighten the screw. (See

FFC

as shown, move the

that

the

FFC

Paper

Eject

Chapter

Eject

Fra

me Assy, be sure to perfo

Chapter

is free too much tension

Frame

5 "ADJUSTMENT".)

6 "MAINTENANCE".)

carriage

Assy, make

nt

of

rm

DISASSEMBLY

Figure 4-109. Installing the P

AND

ASSEMBLY

aper

Eject

,,

..,;..

••

Frame

Disassembly

------

--

..

.

Assy (3)

the

Printer Mechanism 90

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

4.4.12

•

CAUTION

I

•

Upper

Paper

The Upper fragile bridges as shown with are

not Therefore, it even if the bridges

• Do

•

print

If

the

insta

not

Guides

Paper

Guides

to

be

placed on the shaft holders is

not necessa

are

touch

any quality. rollers come off when removin g

ll

the rollers in the

are

connected as a single

arrows

ry

to replace the Upper

broken.

of

the rollers as

proper

unit

below. Howeve

of the

it

can adversely affect the

the Upper

direction

as

r,

print

er frame.

Paper

shown below.

with thin

these

part

Guides

Guides,

D Removal procedure

1.

Remove torsion springs (x3) at the rear

s

Figure 4-110. Removing the Upper

CAUTION

I

The mist sheet A removed. new one .

If

these

and B ma

are

of

the printe

y be deformed

deformed

r.

Paper

Guides (1)

or

damaged when once

or

damaged, replace them with a

•

2. Pee

l off the mist

sheet A

and

mi

st sheet B with

a tweezer or a

si

mil

ar

tool.

D Parts/Components need

Upper Housing I Middle

DISASSEMBLY

I Installing direction

c=>~

Scanner

Housing I

Print

AND

of

rollers I

to

be removed

Unit

/ Panel Unit I

er Mec

hani

sm I

ASSEMBLY

c=>~

in

advance

M/B

Cov

Ink

System U

c=:>~

er I Waste Ink

nit I ASF Unit

Tray

Assy

I

Disassembly

CAUTION

I

•

the

Printer Mechanism

Figure 4-111. Removing the Upper

U

pper

Paper

front

Guides,

to avoid

When removing the of

the

PE

Sensor toward the

Paper

Guides (2)

put

down the

dama

ging

actuator

it

.

91

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

3. Release the hooks (x3), release the Upper Paper Guides from the printer frame, lower the actuator Paper

Guides.

(See

Figure 4

Figure 4-112. Removing

Install the sp rings properly, while position

of

each

-110

spring.

.)

of

the

PE

Sensor, and remove the Upper

Upper

Paper

Guides (3)

pa

ying

attent

the

shaft holders

ion to the tip

of

4.4.13 Front Paper Guide Assy

0 Parts/Components need to be removed in advance

Upper Housing I Scanner Unit I Panel Unit I M/8 Cover I Waste Ink Tray Assy I Middle

Hou

sing I Printer Mechanism I Linear Scale I PF Scale I PF Encoder I lnk

System Unit I ASF Unit I APG Unit I

Guides

0 Removal procedure

CAUTION

I

Do not touch

or

Assy affect the

any

coated surface

print

quality .

of the

CR

Unit I Paper Eject Frame Assy I Upper Paper

rubber

of

rollers

the

PF Roller Assy as

of the

Paper

Eject Roller

it

can adversely

•

I. R

emove

the

2.

In Assy.

Disconnect

3.

Left Parallelism Bush from

the left area

the connector

of

the

printer, rem

of

the

PE

the

Left Frame.

ove

the screw that secure the Front Pap

Sensor at the rear

of

the printer.

er

Guide

ADJUSTMENT

REQUIRED

,r

DISASSEMBLY

F

igur

e 4-113. Installing the U

After removing/replacing the specified adjustments. (See

AND

ASSEMBLY

Chapter

pper

Upper

Paper

5 "ADJUSTMENT"

Paper

Guides,

Guides

mak

e the

.)

Disassembly

Figure 4-114. Removing the F

the

Printer Mechanism 92

ront

Paper

Guide Assy (1)

Confidential

L850 series/L8JO series Revision A

easyfixs.blogspot.com

4. Pull out the PF EJ Ground Spring frontward.

Figure 4-115. Removing

5. Lift rhe left side with the frame, pull the Front

engageme

of the Front Paper Guide Assy slightly to release the engageme nt

nt

at the right side and remove the Front Pap

the

Front Paper

Paper Guide Assy frontward, and then release the

Guide Assy (2)

er

Guide Assy.

Route the cable

Figu

See Fig. 4-115

•

Make sure

•

placed

I Bottom Side I

D

Tip

Guide

re

4-117. Inst

the four tips

on

the Waste

ofFro

lll

Pap

Pad

of

the CD-R Sensor

--

alling the F

and

insta

ll

the

of

Ink

Pad

er

the

ront

PF

Front

.

as

shown below.

Paper

EJ

Ground

Paper

Guide Assy (1)

Spring

.

Guide Pad

are

DISASSEMBLY

Figure 4-116. Removing

AND

ASSEMBLY

the

Front

Paper

Guide Assy (3)

Disassembly

Figure 4-118. Inst

..

r.

the

Printer Mechanism 93

After removing/replacing

.

the specified After replacing the the required lubrication.

·

allin g the Front

adju

stments. (See Ch

Fro

nt

Paper

Guide Assy (2)

the

Front

Paper

Guide Assy,

apter

5 "ADJUSTMENT"

Paper

Guide Assy, be sure to perform

(See C

hapt

er

6 "MAINTENANCE".)

Confidential

mak

e

.)

L850 series/L8JO series Revision A

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4.4.14 Waste

D Parts/Components need to

Upper Housing I Scanner Unit I Panel Unit I M!B Cover I Waste Ink Tray Assy I Middle Housing I Printer Mechanism

D Removal pro

CAUTION

Ink

Pads

be

removed in advance

ce

dure

When removing the Waste contaminate the surrounding objects with waste ink .

Ink

Pad

s, take extra

care

not to

I

•

I. Remove Waste Ink Pads (x3) from the Lower Housing.

DISASSEMBLY

F

igur

e 4-119. Removing the Waste

Place the Waste portions to the full

After removing/replacing the Waste adjustments. (See

AND

Ink

Pad

and make sure

Chapter

ASSEMBLY

s (x2) by pushing them along the

5 "ADJUSTMENT".)

Ink

Pads

that they

Ink

are

free from floating .

Pads, make the specified

Disassembly

cut

the

Printer Mechanism 94

Confidential

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ADJUSTMENT

Confidential

L850 series/L8JO series

easyfixs.blogspot.com

Rei

·isio

11

A

5.1 Adjustment Items

and

Overview

This chapter describes adjustments necessary after the disassembly/reassembly

printer.

5.1.1 Servicing Adjustment Item List

The

adjustment items

.\djustment

PG Adjustment

Touch Panel Calibration Touch Panel

Check

EEPROM

Initial setting

Head

USB

Initiali Offset to paper dust.

Disenable Offset

Operation Confirm that the capacitive touch panel to function correctl

data

ID

lnput

TD

Input

ze

PF

Deterioration Resets the counter

PF

Deterioration

Item

copy

of

this product are as

fol

lows.

Table 5-1.

I

Install

the Head Nozzle surface parallel to the gap between the paper and the Head Nozzle surface to the specified adjustment according to the result whether the manually-moved value. carriage (printhead) runs over

Ca

librate the capacitive touch panel to function correctly. Write the calibrated value to the EEPROM on the Main Board.

When the main board needs to values stored completed successfully, all the other adjustments required after the new board. replacing the main board are

This must

for the target market. written to the main board.

hi

s mu

T the new printhead printheads. board.

Set

s a USB

when multiple same models

When reading the counter value from the old main board the

case

maximum value.

on

the old main board to the new board. If this copy is Then replace the board with a new one, and load the

be

carried out after replacing the main board to apply settings Select the target market.

st

be

carri

ed

out after replacing the printhead

ID

(Head ID) that reduces variation between printhead.

ID

of

the printer. A computer identifies the printer by the ID Enter the product serial number

10

maintain paper feed accuracy which decreases

of

replacing the board, use this to set the counter to its

Puq>ose

the

priming surface and set Mechanical adjustment using the thickness gauges. Make a proper

be

replaced, u

no

longer

are connected via a USB hub. generated and written to the main board.

se

this to copy adjustment Readout the EEPROM

be

necessary.

in

For

of

the

information on bow media re displayed

quired

by

the Adjustment Program.

for

to

the adjustments, see the instructions

• •

Adjustment Items

I

platen.

y.

ord

er

to enter Enter the TD printed on the Head QR code label attached on the

is

impossible

Starting the Special Inspection Mode

in

struction

due Reset

in

Set

on

the screen and check operation.

The

correction values are automatically written to the main

the counter to its default.

the counter to its maximum val

:\lcthod

data

The selected market settings

Outline

or

hits against the gauges placed

of

Panel Key & Test . Follow the

from the main board before removing it.

of

the printer.

ue

The

(3000).

carry

out the adjustments

on

the

EEPROM

are

ID is automatically

data to

automatically

and

I

• Thickness

• Adjustment Program

• Special Inspection

• Adjustment Program

•

Tool

Gauge

1.

15 mm, 1.3 mm

Mode

Adjustment Program

ADJUSTMENT

Adjustment

Items

and

1

0•

erview 96

Confidential

L850 series/L8JO series

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.

\djustment

TOP

Margin Adjustment

Head angul

Bi

-D adjustment

dot

First adjustment

PW

PF

BRS

PFP

CR control

position

adjustment

motor heat protection

Item

ar

adjustment

Table 5-1. Adjustment Items

Purpos

I

of

This corrects top margin

be

This must tilt

or

Corrects print start timing quality. the value for the pattern with no gap and overlap for each mode.

Corrects left margin moving direction is corrected by software. the left

This adjustment is made to correct the mounting position Sensor on a software basis to adjust the detection position and Nozzle enter the value for the line that is exactly 5 mm away from the paper position dispersion. edge for each

Corrects to achieve higher print quality.

This adjustment is made to ensure both high print quality (less banding) and high print speed in the target print mode printing

This adjustment is made to ensure both high print quality and high print Print the adjustment pattern to speed variou s

This must Electrical variation measured to acquire correction val

carried out after replacing the printhead

the printhead by

va

riations in paper feed accuracy when using the Microweave

co

rrecti

ng

in

the target print mode by measuring the paper feed errors

point~

and calculating a correction value for each

be

carried out for efficient heat control

printout. A top margin adjustment pattern is primed. Examine the li.nes printed

sof

tware. and enter the value for the most straight lines.

in

bi-directional printing to improve the print A

of

printout.

ink drop amount for each raster mode. calculated and stored into the serial flash ROM on the main board. The

of

the motor and the

e

The

print start position

power

ue

s for them.

in

order to correct A head angular adjustment pattern is printed. Examine the printed lines

in

by

carrying out l-pa

of

the

CR

supply board are

I

ear the

n exactly 3 mm away from the top edge.

the carriage A first dot adjustment pattern is printed. Exan1ine the lines printed near

exactly 5 mm away from the left

of

the

PW

of

the pointS. calculated and stored into the serial flash ROM on the main board.

motor. Select the parts that you replaced.

A PW adjustment pattern is printed. Examine the p1intou1 patterns and

A select the value for the best pattern. Th e correction value is r

tJ1

According to ilie scanned result, a correction value is automatically

correction value is applied when printing

Adjustment/P

at

According to

correction value is applied when printing in the correspond For Adjustment/Paper Feed Amount Pro

automatically written to the main board.

top edge

Bi-D

adjustmeDl pattern is printed. Examine the patterns and ent

edge

PF

adjustment pattern is printed. Examine the printout patterns and

Print the adjustment pattern to

For more details, see

more details, see "5.5 Banding Red uction Syst

of

the printout and enter the value for the 1 ine that is

of

the left, right. top and bottom.

aper

the scanned result, a correction value

\lethod

the pri.ntout, and enter the value for the line that is

"5

.5 Banding Reduction Syst

Feed Amount Profile (PFP) Correction

Outline

edge

.

be

scanned by a specified scanner.

ill

the corresponding mode.

em

(B RS)

be

scan n

ed

by

a specified scanner.

is

automatically • Specified Scanner

em

(BRS)

fil

e (PFP) Corr

The

correction values

ect

ion ( p.110)

are

egiste

(p

.110)

in

g mode.

Rei

I

• Adjustment Program

• Ruler

• Adjustment Program

er

• Adjustment Program

•Ru

• Adjustment Program

red.

• Adjustment Program

• Specified Scanner

• PFP base scale

• Adjustment Program

The

• PFP base scale

• Adjustment Program

Tool

ler

·isio

11

A

ADJUSTMENT

Adjustment

Items

and

0•

1

erview

97

Confidential

L850 series/LS

easyfixs.blogspot.com

JO

series Revision A

Ta

ble 5-2. Maintenance Items

l\laintenance

Head cleaning

Waste ink pad counter

Ink charge

Item

I

This

function

delivered from the head properly, e.g. dot missing. nozzle check pattern to check The

printer causes a maintenance error when the waste ink pad counter After replacin g the Waste reaches its maximum. Use this to reset the counter after replacing Wa

ste Ink Pad.

se

rvicing, carry

the printer returned from the user This must

in

side the new printhead.

is

used to execute cleaning efficiently when ink is not

If

you find the counter is close to the maximum during

out

the pad replacement and the counter reset to avoid

be

carried out after replacing the printhead in order to fill ink Filling ink inside the printhead is automatically performed. Print a

Purpose

due

to the maintenance error.

The

printhead becomes ready for print. nozzle check pattern to check

Table 5-3. Additional Func tion s

Add itional

check

Final print

EEPROM dump Use this to readout the EEPROM Printer

check

pattern

information Manual

Functions

A4

size Use this to

US

Letter size

CL

counter Use this to readout information

CL

I/C exchange Timer

CL

Print pass counter

counter

I

properly made.

operations.

check

Purpose

if

the all adjustments have been

the

data for analysis. T

on

the printer

I

The

head cleaning is performed automatically. After the cleaning, print a

I

The

all adjustment patterns are printed automatically.

he

all EEPROM data

The

printer information is automatically readout.

\lethod

Ink Pad, reset the counter to its default.

l\lethod

is

automatically readout and stored

Outline

if

all nozzl

es

are firing ink properl

if

all nozzles are firin g ink properly.

Outline

as

y.

a file.

I

• Adjustment Program

I

• Adjustment Program

Tool

ADJUSTMENT

Adjustment Items

and

Overview 98

Confidential

L850 series/LS

easyfixs.blogspot.com

JO

series Revision A

5.1.2 Required Adjustments

The

table below lists the required adjustments depending upon the parts being repaired

carried out.

Note : <Meaning

"

O"

If

the order given in the "Priority" row.

l'art

:\a

Panel Unit

ASFUnit

CR

Motor

Upper Paper Guide

Printhead

Main Board Unit

Power Supply Board

of

the marks

indicates that the adjustment must be carried out. "O*'' indicates that the adjustment is recomm ended. "---" indicates that the adjustment is not required.

you have removed

Priority

Adjustment

me

Remove

Replace (Read OK)

(Re

Replace

in

the table>

or

replaced multiple parts, make sure to

2

-'

.;,t.

:...

;.;

..::

.E

~

.:;

"C

~

Q..

=

c

=

"

;

~

::;

::

..::

Item

,...

Repl

ac

e Remove Replac

.e 0 0 0 0 Remove Replace Re

mov

e 0 0 0 0

Replace Remove Repl

ace

Remove

Rep

lace

ad

Remove

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

NG)

:...

.

~

;

...

;.;

"

~

=

::;

= i

:E

:...

..::

g

:...

g

,...

0 0

0 0 0 0 0

check

the required adjustments for the all parts. And when multiple adjustments mu st

4 s 6 7 x

...

e

"'

OL

"

.E

.;:

~

:~

Q..

:..;

0 0

;:

"

=

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.:

,..,

:;:

=

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.:

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or

replaced. Find the part(s) you removed

.

..

""r

' "

r' •

""

''

l)

10

II

12

..

"'

c

;::

1::

"O

a

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.:

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"

.,,.

0

(

Ink Pads

lllU

SI

be

replaced)

"' "'

;.;

OL

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=

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=

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·;::

..

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;:

c

;...

g.

Q..

,...

0 0 0 0

0 0 0 0 0 0 0 0 0 0

or

replaced, and check which adjustment(s) must be

be

u

c

"'

~

...

"

~

=

OL

=

"

"C

~

:i:

14

=

"'

~

=

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=

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carried out,

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be

sure to carry

17

c

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=

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=

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~

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in

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~

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"'

0

ADJUSTMENT

Adjustment Items

and

Overview 99

Confidential

L850 series/LS

easyfixs.blogspot.com

Priori!~

Adjustment

Part

~amc

Front Paper Guide Assy (including Shaft)

PF

Motor

Wa

ste Ink Tray Assy

Wa

ste Ink Pad

CR

Unit

Paper Eject Frame Assy

Printer Mechanism

PF

JO

series Revision A

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ADJUSTMENT

Adjustment Items

and

Overview

JOO

Confidential

Epson L810, L850 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual