Kyocera TASKalfa 2551ci User manual

SERVICE
MANUAL
Published in November 2014
842NP117
2NPSM067
Rev.7
TASKalfa 2551ci

2NP
1-4-1
1-4 Troubleshooting
1-4-1 Paper misfeed detection
(1) Paper misfeed indication
When a paper misfeed occurs, the machine immediately stops printing and displays the paper misfeed mes-
sage on the operation panel. To remove paper misfed in the machine, pull out the cassette, open the paper
conveying unit or paper conveying cover.
The positions and the corrective actions are displayed on the touch panel when a paper jam has occurred.
Figure 1-4-1











2NP
1-4-2
Figure 1-4-2
(A) Misfeed in the cassette 1
(B) Misfeed in the cassette 2
(C) Misfeed in the cassette 3 or 4 (option)
(D) Misfeed in the MP tray
(E) Misfeed in the duplex unit
(F) Misfeed in the inner tray or fuser section
(G) Misfeed in the document processor (option)
(H) Misfeed in the job separator
(I) Misfeed in the the bridge (option)
(J) Misfeed in the the document finisher (option)


















2NP
1-4-3
(2) Paper misfeed detection component
Figure 1-4-3
 










 



























2NP
1-4-4
Code Contents Conditions Jam
location*
0000 Initial jam The power is turned on when a sensor in the con-
veying system is on.
-
0100 Secondary paper feed
request time out
Secondary paper feed request given by the con-
troller is unreachable.
B
0101 Waiting for process package
to be ready
 -
0104 Waiting for conveying pack-
age to be ready
 -
0106 Paper feeding request for
duplex printing time out
Paper feeding request for duplex printing given by
the controller is unreachable.
E
0107 Waiting for fuser package to
be ready
 -
0110 Right cover 1 open The right cover 1 is opened during printing. -
0111 Front cover open The front cover is opened during printing. -
0112 Right cover 3 open The right cover 3 is opened during printing. -
0120 Receiving a duplex paper
feeding request while paper
is empty
Paper feed request was received from the duplex
section despite the absence of paper in the duplex
section.
-
0121 Exceeding number of duplex
pages circulated
The controller issued the duplex section a request
for more pages than the duplex print cycle con-
tains.
-
0210 Right cover 2 open The right cover 2 is opened during printing. E
0501 No paper feed from cassette
1
The registration sensor (RS) does not turn on dur-
ing paper feed from cassette 1.
-
0502 No paper feed from cassette
2
Feed sensor 1 (FS1) does not turn on during paper
feed from cassette 2 (Retry 1 times).
A
0503 No paper feed from cassette
3
Feed sensor 2 (FS2) does not turn on during paper
feed from cassette 3 (Retry 1 times).
B
0504 No paper feed from cassette
4
PF feed sensor (PFFS) does not turn on during
paper feed from cassette 4 (Retry 1 times).
C
0508 No paper feed from duplex
section
The registration sensor (RS) does not turn on dur-
ing paper feed from the duplex section.
C
0509 No paper feed from MP tray The registration sensor (RS) does not turn on dur-
ing paper feed from the MP tray.
E
0511 Multiple sheets in cassette 1 The registration sensor (RS) does not turn off dur-
ing paper feed from cassette 1.
D
0512 Multiple sheets in cassette 2 Feed sensor 1 (FS1) does not turn off during paper
feed from cassette 2.
F
0513 Multiple sheets in cassette 3 Feed sensor 2 (FS2) does not turn off during paper
feed from cassette 3.
B
*: Refer to figure 1-4-1 for paper jam location (see page 1-4-1).

2NP
1-4-5
0514 Multiple sheets in cassette 4 PF feed sensor (PFFS) does not turn off during
paper feed from cassette 4.
C
0518 Multiple sheets in duplex
section
The registration sensor (RS) does not turn off dur-
ing paper feed from the duplex section.
E
0519 Multiple sheets in MP tray The registration sensor (RS) does not turn off dur-
ing paper feed from theMP tray.
F
0523 No paper feed from cassette
3
PF feed sensor 1 (PFFS1) does not turn on during
paper feed from cassette 3 (Bulk paper feeder).
C
0524 No paper feed from cassette
4
PF feed sensor2 (PFFS2) does not turn on during
paper feed from cassette 4 (Bulk paper feeder).
C
0533 Multiple sheets in cassette 3 PF feed sensor 1 (PFFS1) does not turn off during
paper feed from cassette 3 (Bulk paper feeder).
C
0534 Multiple sheets in cassette 4 PF feed sensor 2 (PFFS2) does not turn off during
paper feed from cassette 4 (Bulk paper feeder).
C
1403 Feed sensor 1 non arrival
jam
Feed sensor 1 (FS1) does not turn on during paper
feed from cassette 3.
B
1404 Feed sensor 1 (FS1) does not turn on during paper
feed from cassette 4.
B
1413 Feed sensor 1 stay jam Feed sensor 1 (FS1) does not turn off during paper
feed from cassette 3.
B
1414 Feed sensor 1 (FS1) does not turn off during paper
feed from cassette 4.
B
1604 Feed sensor 2 non arrival
jam
Feed sensor 2 (FS2) does not turn on during paper
feed from cassette 4.
C
1614 Feed sensor 2 stay jam Feed sensor 2 (FS2) does not turn off during paper
feed from cassette 4.
B
2603 PF feed sensor 1 non arrival
jam
PF conveying sensor 1 (PFPCS1) does not turn on
during paper feed from cassette 3 (Bulk paper
feeder).
C
2604 PF conveying sensor 1 (PFPCS1) does not turn on
during paper feed from cassette 4 (Bulk paper
feeder).
C
2613 PF feed sensor 1 stay jam PF conveying sensor 1 (PFPCS1) does not turn off
during paper feed from cassette 3 (Bulk paper
feeder).
B
2614 PF conveying sensor 1 (PFPCS1) does not turn off
during paper feed from cassette 4 (Bulk paper
feeder).
B
2704 PF feed sensor 2 non arrival
jam
PF conveying sensor 2 (PFPCS2) does not turn on
during paper feed from cassette 4 (Bulk paper
feeder).
C
Code Contents Conditions Jam
location*
*: Refer to figure 1-4-1 for paper jam location (see page 1-4-1).

2NP
1-4-6
2714 PF feed sensor 2 stay jam PF conveying sensor 2 (PFPCS2) does not turn off
during paper feed from cassette 4 (Bulk paper
feeder).
C
4002 Registration sensor non
arrival jam
The registration sensor (RS) does not turn on dur-
ing paper feed from cassette 2.
B
4003 The registration sensor (RS) does not turn on dur-
ing paper feed from cassette 3.
B
4004 The registration sensor (RS) does not turn on dur-
ing paper feed from cassette 4.
B
4012 Registration sensor stay jam The registration sensor (RS) does not turn off dur-
ing paper feed from cassette 2.
B
4013 The registration sensor (RS) does not turn off dur-
ing paper feed from cassette 3.
B
4014 The registration sensor (RS) does not turn off dur-
ing paper feed from cassette 4.
B
4101 Fuser pre sensor non arrival
jam
The fuser pre sensor (FUPS) does not turn on dur-
ing paper feed from cassette 1.
F
4102 The fuser pre sensor (FUPS) does not turn on dur-
ing paper feed from cassette 2.
F
4103 The fuser pre sensor (FUPS) does not turn on dur-
ing paper feed from cassette 3.
F
4104 The fuser pre sensor (FUPS) does not turn on dur-
ing paper feed from cassette 4.
F
4108 The fuser pre sensor (FUPS) does not turn on dur-
ing paper feed from duplex section.
F
4109 The fuser pre sensor (FUPS) does not turn on dur-
ing paper feed from MP tray.
F
4111 Fuser pre sensor stay jam The fuser pre sensor (FUPS) does not turn off dur-
ing paper feed from cassette 1.
F
4112 The fuser pre sensor (FUPS) does not turn off dur-
ing paper feed from cassette 2.
F
4113 The fuser pre sensor (FUPS) does not turn off dur-
ing paper feed from cassette 3.
F
4114 The fuser pre sensor (FUPS) does not turn off dur-
ing paper feed from cassette 4.
F
4118 The fuser pre sensor (FUPS) does not turn off dur-
ing paper feed from the duplex section.
E
4119 The fuser pre sensor (FUPS) does not turn off dur-
ing paper feed from the MP tray.
F
Code Contents Conditions Jam
location*
*: Refer to figure 1-4-1 for paper jam location (see page 1-4-1).

2NP
1-4-7
4201 Eject sensor non arrival jam The eject sensor (ES) does not turn on during
paper feed from cassette 1.
F
4202 The eject sensor (ES) does not turn on during
paper feed from cassette 2.
F
4203 The eject sensor (ES) does not turn on during
paper feed from cassette 3.
F
4204 The eject sensor (ES) does not turn on during
paper feed from cassette 4.
F
4208 The eject sensor (ES) does not turn on during
paper feed from duplex section.
E
4209 The eject sensor (ES) does not turn on during
paper feed from MP tray.
F
4211 Eject sensor stay jam The eject sensor (ES) does not turn off during
paper feed from cassette 1.
H
4212 The eject sensor (ES) does not turn off during
paper feed from cassette 2.
H
4213 The eject sensor (ES) does not turn off during
paper feed from cassette 3.
H
4214 The eject sensor (ES) does not turn off during
paper feed from cassette 4.
H
4218 The eject sensor (ES) does not turn off during
paper feed from the duplex section.
H
4219 The eject sensor (ES) does not turn off during
paper feed from the MP tray.
H
4301 Duplex sensor non arrival
jam
The duplex sensor (DUS) does not turn on during
paper feed from cassette 1.
E
4302 The duplex sensor (DUS) does not turn on during
paper feed from cassette 2.
E
4303 The duplex sensor (DUS) does not turn on during
paper feed from cassette 3.
E
4304 The duplex sensor (DUS) does not turn on during
paper feed from cassette 4.
E
4309 The duplex sensor (DUS) does not turn on during
paper feed from the MP tray.
E
Code Contents Conditions Jam
location*
*: Refer to figure 1-4-1 for paper jam location (see page 1-4-1).

2NP
1-4-8
4311 Duplex sensor stay jam The duplex sensor (DUS) does not turn off during
paper feed from cassette 1.
E
4312 The duplex sensor (DUS) does not turn off during
paper feed from cassette 2.
E
4313 The duplex sensor (DUS) does not turn off during
paper feed from cassette 3.
E
4314 The duplex sensor (DUS) does not turn off during
paper feed from cassette 4.
E
4319 The duplex sensor (DUS) does not turn off during
paper feed from the MP tray.
E
4901 Bridge conveying sensor 1
non arrival jam
The bridge conveying sensor 1 (BRCS1) does not
turn on during paper feed from cassette 1.
H
4902 The bridge conveying sensor 1 (BRCS1) does not
turn on during paper feed from cassette 2.
H
4903 The bridge conveying sensor 1 (BRCS1) does not
turn on during paper feed from cassette 3.
H
4904 The bridge conveying sensor 1 (BRCS1) does not
turn on during paper feed from cassette 4.
H
4908 The bridge conveying sensor 1 (BRCS1) does not
turn on during paper feed from duplex section.
H
4909 The bridge conveying sensor 1 (BRCS1) does not
turn on during paper feed from the MP tray.
H
Code Contents Conditions Jam
location*
*: Refer to figure 1-4-1 for paper jam location (see page 1-4-1).

2NP
1-4-9
4911 Bridge conveying sensor 1
stay jam
The bridge conveying sensor 1 (BRCS1) does not
turn off during paper feed from cassette 1.
H
4912 The bridge conveying sensor 1 (BRCS1) does not
turn off during paper feed from cassette 2.
H
4913 The bridge conveying sensor 1 (BRCS1) does not
turn off during paper feed from cassette 3.
H
4914 The bridge conveying sensor 1 (BRCS1) does not
turn off during paper feed from cassette 4.
H
4918 The bridge conveying sensor 1 (BRCS1) does not
turn off during paper feed from duplex section.
H
4919 The bridge conveying sensor 1 (BRCS1) does not
turn off during paper feed from the MP tray.
H
5001 Bridge conveying sensor 3
non arrival jam
The bridge conveying sensor 3 (BRCS3) does not
turn on during paper feed from cassette 1.
H
5002 The bridge conveying sensor 3 (BRCS3) does not
turn on during paper feed from cassette 2.
H
5003 The bridge conveying sensor 3 (BRCS3) does not
turn on during paper feed from cassette 3.
H
5004 The bridge conveying sensor 3 (BRCS3) does not
turn on during paper feed from cassette 4.
H
5008 The bridge conveying sensor 3 (BRCS3) does not
turn on during paper feed from the duplex section.
H
5009 The bridge conveying sensor 3 (BRCS3) does not
turn on during paper feed from theMP tray.
H
5011 Bridge conveying sensor 3
stay jam
The bridge conveying sensor 3 (BRCS3) does not
turn off during paper feed from cassette 1.
I
5012 The bridge conveying sensor 3 (BRCS3) does not
turn off during paper feed from cassette 2.
I
5013 The bridge conveying sensor 3 (BRCS3) does not
turn off during paper feed from cassette 3.
I
5014 The bridge conveying sensor 3 (BRCS3) does not
turn off during paper feed from cassette 4.
I
5018 The bridge conveying sensor 3 (BRCS3) does not
turn off during paper feed from duplex section.
I
5019 The bridge conveying sensor 3 (BRCS3) does not
turn off during paper feed from the MP tray.
I
6001 DF paper entry error DF paper entry sensor (DFPES) turns on before
the eject signal is output from the machine (1000-
sheet finisher).
-
6021 DF front cover open DF front cover is opened during operation (1000-
sheet finisher).
-
Code Contents Conditions Jam
location*
*: Refer to figure 1-4-1 for paper jam location (see page 1-4-1).

2NP
1-4-10
6041 DF top cover open DF top cover is opened during operation (1000-
sheet finisher).
-
6101 DF paper entry sensor non
arrival jam
DF paper entry sensor (DFPES) does not turned
on even if a specified time has elapsed after the
machine eject signal was received (1000-sheet fin-
isher).
I
6111 DF paper entry sensor stay
jam
DF paper entry sensor (DFPES) does not turned
off within specified time of its turning on (1000-
sheet finisher).
J
6301 DF middle eject sensor non
arrival jam
DF middle eject sensor (DFMES) does not turn on
within specified time of DF paper entry sensor
(DFPES) turning on (1000-sheet finisher).
J
6311 DF middle eject sensor stay
jam
DF middle eject sensor (DFMES) is not turned off
within specified time of its turning on (1000-sheet
finisher).
J
6401 DF tray upper surface sen-
sor non arrival jam
DF tray upper surface sensor (DFTUSS) does not
turn on within specified time of DF middle eject
sensor (DFMES) turning on (1000-sheet finisher).
J
6411 DF tray upper surface sen-
sor stay jam
DF tray upper surface sensor (DFTUSS) is not
turned off within specified time of its turning on
(1000-sheet finisher).
J
6511 DF eject paper sensor stay
jam
DF eject paper sensor (DFMTS) is not turned off
since the bundle discharge starts (1000-sheet fin-
isher).
J
6811 DF side registration sensor 1
stay jam
DF side registration sensor 1 (DFSRS1) is not
turned off within specified time after driving the DF
side registration motor 1 (DFSRM1) (1000-sheet
finisher).
J
6911 DF side registration sensor 2
stay jam
DF side registration sensor 2 (DFSRS2) is not
turned off within specified time after driving the DF
side registration motor 2 (DFSRM2) (1000-sheet
finisher).
J
7001 DF staple operation error DF staple sensor (DFSTS) is not turned on within
specified time after driving the DF staple motor
(DFSTM) (1000-sheet finisher).
J
7100 CF paper entry sensor non
arrival jam
CF paper entry sensor (CFPES) is not turned on
even if a specified time has elapsed after the
machine eject signal was received.
J
7901 HP detection error of a mid-
dle motor
DF middle sensor (DFMES) is not turned on. J
7951 Paper interval error jam An illegal inter-page or inter-copy interval has
occurred (1000-sheet finisher).
J
9000 No paper feed from DP DP feed sensor (DPPFS) does not turn on during
original feed from DP (Retry 5 times).
G
Code Contents Conditions Jam
location*
*: Refer to figure 1-4-1 for paper jam location (see page 1-4-1).

2NP
1-4-11
9001 DP original conveying jam DP timing sensor (DPTS) turns off within the speci-
fied time since the sensor turns on.
G
9002 DP sensor stay jam Sensor in the conveying system is on since original
feeding starts.
G
9004 DP original switchback jam During duplex switchback scanning, the DP regis-
tration sensor (DPRS) does not turn on within
specified time of the DP timing sensor (DPTS)
turning off.
G
9005 No original feed jam 2 DP lift sensor 1 (DPLS1) does not turn on within
specified time of the lift plate rising.
G
9006 DP switchback jam 3 DP eject sensor (DPES) is not turned on within
specified time since original switchback operation
starts.
G
9007 DP switchback jam 4 DP eject sensor (DPES) is not turned off within
specified time since original switchback operation
starts.
G
9008 No original feed jam 3 DP CIS sensor (DPCS) does not turn on within
specified time of the paper feed starting.
G
9009 DP original conveying jam 2 Next feed original became the stand-by states of
paper feed while reading the image.
G
9010 DP open The DP is opened during original feeding.
Sensor in the conveying system is on when the
power is turned on or the cover is closed.
G
9011 DP top cover open The DP top cover is opened during original feed-
ing.
G
9020 Original skew feed jam DP skew sensor (DPSS) does not turn on within
specified time of DP registration sensor (DPRS)
turning on.
G
9110 DP paper feed sensor stay
jam
The DP paper feed sensor (DPPFS) or DP regis-
tration sensor (DPRS) does not turn off within the
specified time of the DP timing sensor (DPTS)
turning on.
G
9200 DP registration sensor non
arrival jam
The DP registration sensor (DPRS) does not turn
on within the specified time of the DP paper feed
sensor (DPPFS) turning on.
G
9210 DP registration sensor stay
jam
DP registration sensor (DPRS) does not turn off
within specified time of DP timing sensor (DPTS)
turning on.
G
9300 DP CIS sensor non arrival
jam
DP CIS sensor (DPCS) does not turn on within
specified time of DP registration sensor (DPFS)
turning on.
G
Code Contents Conditions Jam
location*
*: Refer to figure 1-4-1 for paper jam location (see page 1-4-1).

2NP
1-4-12
9310 DP CIS sensor stay jam DP CIS sensor (DPCS) does not turn off within
specified time of DP registration sensor (DPFS)
turning off.
G
9400 DP timing sensor non arrival
jam
The DP timing sensor (DPTS) does not turn on
within the specified time of the DP registration sen-
sor (DPRS) turning on (Retry 5 times).
G
9410 DP timing sensor stay jam The DP timing sensor (DPTS) does not turned off
within the specified time its turning on.
G
9500 DP switchback sensor non
arrival jam
DP switchback sensor (DPSBS) does not turn on
within specified time of DP timing sensor (DPTS)
turning on.
G
9600 DP eject sensor non arrival
jam
DP eject sensor (DPES) does not turn on within
specified time of DP timing sensor (DPTS) turning
on.
G
9610 DP eject sensor stay jam DP eject sensor (DPES) does not turn off within
specified time of DP timing sensor (DPTS) turning
off.
G
Code Contents Conditions Jam
location*
*: Refer to figure 1-4-1 for paper jam location (see page 1-4-1).

2NP
1-4-13
1-4-2 Self-diagnostic function
(1) Self-diagnostic function
This machine is equipped with self-diagnostic function. When a problem is detected, the machine stops print-
ing and display an error message on the operation panel. An error message consists of a message prompting
a contact with service personnel and a four-digit error code indicating the type of the error.
(2) Self-diagnostic codes
If the part causing the problems not designated as a service part, replace the assembly comprising the part.
Code Contents Causes Check procedures/
corrective measures
0030 FAX control PWB system
error
Processing with the fax soft-
ware was disabled due to a
hardware problem.
Defective PWB. 1. Turn the main power swtch off and after
5 seconds, re-mount the FAX controller
PWB, then turn power on.
2. Reinstall the fax software.
3. Replace the FAX control PWB.
0070 FAX control PWB incompat-
ible detection error
In the initial communication
with the FAX control PWB, the
normal communication com-
mand is not transmitted.
Defective FAX soft-
ware.
1. Install the FAX system designed for the
model.
2. Reinstall the fax software.
Defective PWB. Replace the fax control PWB and check for
correct operation.
0100 Backup memory device
error
Defective flash
memory.
1. Turn the main power swtch off and after
5 seconds, then turn power on.
2. Check that the EEPROM on the main
circuit PWB is peroperly installed on the
main circuit PWB and, if not, re-install it.
Defective PWB. Replace the main PWB and check for cor-
rect operation (see page 1-5-37).
0120 MAC address data error
The data includes an invalid
MAC address.
Defective flash
memory.
1. Turn the main power swtch off and after
5 seconds, then turn power on.
2. Check the MAC address on the network
status page.
3. If it is blank, obtain an EEPROM with its
MAC address written from the service
support and install.
Defective PWB. Replace the main PWB and check for cor-
rect operation (see page 1-5-37).

2NP
1-4-14
0130 Backup memory read/write
error (main PWB)
Mismatch between writing
data and reading data succes-
sively.
Defective NAND. Turn the main power swtch off and after 5
seconds, then turn power on.
Defective PWB. Replace the main PWB and check for cor-
rect operation (see page 1-5-37).
0140 Backup memory data error
(main PWB)
When the data read from
NAND is abnormalities
Defective flash
memory.
1. Turn the main power swtch off and after
5 seconds, then turn power on.
2. Execute U021 - memory initializing.(see
page 1-3-32)
Defective PWB. Replace the main PWB and check for cor-
rect operation (see page 1-5-37).
0150 Backup memory read/write
error (engine PWB)
No response is issued from
the device in reading/writing
for 5 ms or more and this
problem is repeated 5 times
successively.
Mismatch of reading data from
2 locations occurs 8 times
successively.
Mismatch between writing
data and reading data occurs
8 times successively.
The engine PWB
EEPROM was
improperly
installed.
1. Turn the main power swtch off and after
5 seconds, then turn power on.
2. Check that the EEPROM is peroperly
installed on the engine PWB and re-
install it.
Defective PWB. Replace the engine PWB and check for cor-
rect operation (see page 1-5-39).
Defective
EEPROM.
Check the EEPROM and if the data are cur-
rupted, contact the service support.
0160 Backup memory data error
(engine PWB)
Defective flash
memory.
1. Turn the main power swtch off and after
5 seconds, then turn power on.
2. Execute U021 - memory initializing.(see
page 1-3-32)
Defective PWB. Replace the engine PWB and check for cor-
rect operation (see page 1-5-39).
Defective
EEPROM.
Check the EEPROM and if the data are cur-
rupted, contact the service support.
0170 Billing counting error
A checksum error is detected
in the main and engine
backup memories for the bill-
ing counters.
Data in the
EEPROM .
1. Check that the EEPROMs installed in
the main PWB and the engine PWB are
correct and, if not, use the correct
EEPROM for the model.
2. If the EEPROM data are currupted,
contact the service support.
Defective PWB. Replace the main PWB or the engine PWB
and check for correct operation
(see page 1-5-37, 1-5-39).
Code Contents Causes Check procedures/
corrective measures

2NP
1-4-15
0180 Machine number mismatch
Machine number of main and
engine does not match.
Data in the
EEPROM .
1. Confirm the machine data for the main
and engine units by using U004 (see
page 1-3-27).
2. If the serial number data of different
models is alternately displayed, install
the correct EEPROM in the PWB of the
wrong serial number data.
3. Contact the Service Support.
0350 Panel PWB communication
error (electronic volume I2C
communication error)
NACK is received during I2C
communication -> retried 5
times -> rebooting command
sent -> retried 5 times
If NACK is still received.
Operation PWB 1. Turn the main power swtch off and after
5 seconds, then turn power on.
2. Confirm that the wiring connector is
firmly connected and, if necessary, con-
nect the connector all the way in.
Operation PWB (YC10) and Main PWB
(YC12)
3. If the wiring is disconnected, shorted or
grounded, replace the wiring.
Main PWB Replace the main PWB (see page 1-5-37).
0620 FAX image DIMM error
DIMM is not installed cor-
rectly.
DIMM cannot be accessed.
DIMM installed
incorrectly.
1. Install the FAX image DIMM supplied in
the FAX system onto the main PWB.
2. Firmly install the FAX image DIMM again
onto the main board.
3. Check the FAX image DIMM terminals
and remove any foreign objects that may
be adhered to it.
4. Replace with a new FAX image DIMM.
Defective PWB. Replace the main PWB and check for cor-
rect operation (see page 1-5-37).
Code Contents Causes Check procedures/
corrective measures

2NP
1-4-16
0630 DMA error
DMA transmission of image
data does not complete within
the specified period of time.
Poor contact in the
connector termi-
nals.
1. Reconnect the CIS signal line.
2. Confirm that the CIS connector
terminals are firmly connected. Insert
the connector all the way in.
3. If the wiring is disconnected, shorted or
grounded, replace the wiring.
Defective PWB. 1. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
2. If the wiring is disconnected, shorted or
grounded, replace the wiring.
Wiring that connects the CIS and the DP
controller PWB.
Wiring that connects the DP main PWB
and the main PWB.
3. Replace the DP main PWB.
4. Replace the main PWB (see page 1-5-
37).
0640 Hard disk error
The hard disk cannot be
accessed.
Defective connec-
tor cable or poor
contact in the con-
nector.
1. If an abnormal noise is heard from the
HDD, replace the HDD.
2. Check the SATA wiring between the
HDD and the main circuit PWB for loose
connection, disconnection and
damages, and that it is connected into
the correct terminal.
Main PWB: YC1,YC27
YC2,YC32 (45/55 ppm model)
3. Replace the SATA cable.
Defective hard
disk.
1. Execute U024 to initialize (FULL) the
HDD (see page 1-3-33).
2. If an error is detected after executing
U024, replace the HDD.
Defective PWB. Replace the main PWB and check for cor-
rect operation (see page 1-5-37).
Code Contents Causes Check procedures/
corrective measures

2NP
1-4-17
0650 FAX image DIMM check
error
Improper DIMM is installed.
DIMM installed
incorrectly.
Check if the DIMM is inserted into the socket
on the main PWB correctly.
DIMM of another
machine is
installed.
1. Confirm that a used FAX image DIMM
was used instead of the FAX image
DIMM contained in the FAX system.
2. If a DIMM that was used with other unit
has been installed, execute
maintenance mode U671 - Recovery
FAX DIMM.
3. Replace with a new FAX image DIMM.
Defective PWB. Replace the main PWB and check for cor-
rect operation (see page 1-5-37).
0660 Hard disk encryption key
error
EEPROM 1. Execute U004 if this occurs after the
EEPROM has been changed.
HDD 1. If an abnormal noise is heard from the
HDD, replace the HDD.
2. Check the SATA wiring between the
HDD and the main circuit PWB for loose
connection, disconnection and
damages, and that it is connected into
the correct terminal.
Main PWB: YC1,YC27
3. Replace the SATA cable.
4. Execute U024 to initialize (FULL) the
HDD (see page 1-3-33).
5. If an error is detected after executing
U024, replace the HDD.
Main PWB Replace the main PWB (see page 1-5-37).
0670 Hard disk overwriting era-
sure error
HDD 1. If an abnormal noise is heard from the
HDD, replace the HDD.
2. Check the SATA wiring between the
HDD and the main circuit PWB for loose
connection, disconnection and
damages, and that it is connected into
the correct terminal.
Main PWB: YC1,YC27
Replace the SATA cable.
3. Execute U024 to initialize (FULL) the
HDD (see page 1-3-33).
4. If an error is detected after executing
U024, replace the HDD.
Main PWB Replace the main PWB (see page 1-5-37).
Code Contents Causes Check procedures/
corrective measures

2NP
1-4-18
0800 Image processing error
The JAM100 fee counter is
continuously generated.
Defective main
PWB.
Replace the main PWB and check for cor-
rect operation (see page 1-5-37).
0830 FAX control PWB flash pro-
gram area checksum error
A checksum error occurred
with the program of the FAX
control PWB.
Defective FAX soft-
ware.
Install the fax software.
Defective PWB. 1. Execute initializing by U600.(Refer to
the FAX service manual)
2. Replace the FAX control PWB.
0840 Faults of RTC
The time is judged to go back
based on the comparison of
the RTC time and the current
time or five years or more
have passed.
The battery is dis-
connected from the
main PWB.
1. Make sure that the back-up batteries on
the main PWB are not short-circuited.
2. Reset Maintenance T by executing
U906 (see page 1-3-196).
3. If the same C call is displayed when
power is switched on and off, replace the
back up battery.
4. If communication error (due to a noise,
etc.) is present with the RTC on the main
circuit PWB, check the PWB is properly
grounded.
Defective PWB. Replace the main PWB and check for cor-
rect operation (see page 1-5-37).
0870 FAX control PWB to main
PWB high capacity data
transfer error
High-capacity data transfer
between the FAX control PWB
and the main PWB of the
machine was not normally
performed even if the data
transfer was retried the speci-
fied times.
Improper installa-
tion FAX control
PWB.
Turn the main power swtch off and after 5
seconds, re-mount the FAX controller PWB,
then turn power on.
HDD Execute U024 to initialize the HDD (see
page 1-3-33).
Defective PWB. Replace the FAX control PWB or main PWB
and check for correct operation
(see page 1-5-37).
0920 Fax file system error
The backup data is not
retained for file system abnor-
mality of flash memory of the
FAX control PWB.
Defective PWB. 1. Execute initializing by U600 (Refer to
the FAX service manual).
2. Replace the FAX control PWB.
Code Contents Causes Check procedures/
corrective measures

2NP
1-4-19
0980 24 V power down detect
24V disconnection signal is
detected for 1.5 seconds.
Defective power
source PWB.
1. Check the +24V output is given at YC12-
1 to 3 of the power circuit PWB.
2. Replace the power source PWB (see
page 1-5-44).
1010 Lift motor 1 error
After cassette 1 is inserted,
the lift sensor 1 does not turn
on within 15 s. This error is
detected five times succes-
sively.
Defective bottom
plate elevation
mechanism in the
cassette.
Check to see if the bottom plate can move
smoothly and repair any problem that is
found.
Defective connec-
tor cable or poor
contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity of the connector cable. If necessary,
replace the cable.
Lift motor 1 and engine connect PWB (YC6)
Engine connect PWB (YC2) and engine
PWB (YC4)
Defective drive
transmission sys-
tem of the lift
motor.
Check if the gears rotate smoothly. If not,
grease the bushes and gears. Check for
broken gears and replace if necessary.
Defective lift motor. Replace the lift motor 1.
Defective PWB. Replace the engine PWB and check for cor-
rect operation (see page 1-5-39).
Code Contents Causes Check procedures/
corrective measures