Epson L810, L850 Service Manual
SERVICE
MANUAL
EPSON
EXCEED
YOUR VISION
Confidential
SEMF14-007
Notice:
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EPSON is a registered trademark
General Notice:
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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
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
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
easyfixs.blogspot.com
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
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
int
sys
errupter
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
HP
0
-+
f-
HP 0
HP 0
2
p(;".I
Any
position
J,
J,
J,
J,
J,
J,
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
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
HP 0
-+
0
t
0
J,
0
J,
0
J,
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
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,
.J,
PG--
.J,
.J,
PG++
.J,
.J,
.J,
~
~
,
HP
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
HP
(---
HP
HP
HP
HP
HP
HP
HP
HP
0
~
0
0
0
0
0
0
0
0
0
0
to
the next page)
p(;'.I
PG++
PG--
.J,
.J,
.J,
.J,
.J,
.J,
.J,
.J,
.J,
OPER1\TING
PRINCIPLES
Power-On Sequence
14
Conf1dent1al
L850 series/L8JO series Revision A
easyfixs.blogspot.com
Tab
le 2-3.
Operation
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 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,
.J,
0
.J,
.J,
.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
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
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.
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
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.
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
easyfixs.blogspot.com
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
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
SCN
SCN
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
easyfixs.blogspot.com
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
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
easyfixs.blogspot.com
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
• 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
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
easyfixs.blogspot.com
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
easyfixs.blogspot.com
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
easyfixs.blogspot.com
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
Confidential
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