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Trouble code

Description

Main
code

Sub

code

C1

00

Content MC trouble

Detail

Main charger output error (output
released)
Trouble signal from high-voltage
transformer

Cause

Main charger improperly installed
Main charger improperly assembled
High-voltage transformer connector
removed
High-voltage harness removed or wire
broken

Check
and
remedy

Check main charger output with SIM8-2.
Check main charger connector for
disconnection.
Replace high-voltage unit.

C2

00

Content TC trouble

Detail

Transfer charger output error (output
short-circuiting)
Trouble signal from high-voltage
transformer

Cause

Transfer charger contaminated with
foreign matter
Transfer charger wire broken
High-voltage transformer connector
disconnected

Check
and
remedy

Check transfer charger output with
SIM8-6.
Replace high-voltage unit.

E7

02

Content Laser trouble

Detail

BD signal from LSU kept at OFF or ON

Cause

Connector to LSU or harness inside LSU
disconnected or wire broken
Polygon motor improperly rotating
Laser home position sensor improperly
positioned inside LSU
Laser power supply line does not have
proper voltage
Laser LED improperly lighting
ICU PWB error

Check
and
remedy

Check LSU connector for disconnection.
Check LSU operation with SIM61-1.
Check polygon motor for rotation.
Check laser LED for lighting.
Replace LSU unit.
Replace ICU PWB.

10

Content Shading trouble (black correction)

Detail

Improper CCD black reading level for
copy lamp going out

Cause

Improper installation of flat cable to CCD
unit
CCD unit error
ICU PWB error

Check
and
remedy

Check flat cable to CCD unit for
installation.
Check CCD unit.
Check ICU PWB.

Trouble code

Description

Main
code

Sub

code

E7

11

Content Shading trouble (white correction)

Detail

Improper CCD white reference plate
reading level for copy lamp lighting

Cause

Improper installation of flat cable to CCD
unit
Mirror, lens or reference white plate
contaminated
Copy lamp operation error
Improperly installed CCD unit
CCD unit error
ICD PWB error

Check
and
remedy

Clean mirror, lens, or reference white
plate.
Check copy lamp for light amount
(SIM5-3) and lighting.
Check CCD unit.
Check ICU PWB.

13

Content CCD light amount check error

Detail

Copy lamp light amount adjustment in
shading cannot be made

Cause

Copy lamp does not light (broken wire,
improper installation)
Improper installation of flat cable to CCD
unit
Improper connection of copy lamp CL
lead wire
Mirror, lens, or reference white plate
Dirt or dew
Improper output of copy lamp power
supply
Improper installation of CCD unit
CCD unit error
ICU PWB error

Check
and
remedy

Clean mirror, lens, reference white plate.
Check copy lamp for light amount
(SIM5-3) and lighting.
Check CCD unit.
Check ICU PWB.

F1

00

Content Finisher communication trouble

Detail

Communication line test error occurs
when power is turned on or after the exit
of a simulation mode.
Improper communication with sorter

Cause

Improper connection or broken wire of
connector or harness between copier
and sorter
Finisher control PWB defective
Control PWB (PCU) defective
Malfunction due to noise

Check
and
remedy

Clear by turning the power supply
OFF/ON.
Check communication line connector and
harness.
Replace Finisher control PWB or PCU
PWB.

01

Content Finisher jogger shift trouble

Detail

Jogger shift trouble

Cause

Motor lock
Motor rpm abnormality
Motor overcurrent
Finisher control PWB trouble

Check
and
remedy

Check the jogger motor operation with
SIM 3-3.

11 – 2

Trouble code

Description

Main
code

Sub

code

F1

02

Content Finisher transport motor error

Detail

Transport motor drive trouble

Cause

Motor lock

Check
and
remedy

Check transport motor operation with
SIM3-3.

04

Content Finisher indexer lower limit detected

Detail

Indexer has exceeded lower limit.

Cause

Sensor defective
Finisher control PWB defective

Check
and
remedy

Check sensor with SIM3-2.

05

Content Finisher indexer upper limit detected

Detail

Indexer has exceeded upper limit

Cause

Sensor defective
Finisher control PWB defective

Check
and
remedy

Check sensor with SIM3-2.

06

Content Finisher bin shift motor error

Detail

1) Bin shift is not completed within 2.5
seconds after bin shift request

Cause

Motor lock
Improper motor speed
Overcurrent to motor
Finisher control PWB defective

Check
and
remedy

Check bin shift motor operation with
SIM3-4.

10

Content Staple unit operation trouble

Detail

Staple operation trouble

Cause

Motor lock
Motor rpm abnormality
Motor overcurrent
Finisher control PWB trouble

Check
and
remedy

Check the staple motor operation with
SIM 3-3.

11

Content Pusher motor trouble

Detail

Pusher motor trouble

Cause

Motor lock
Motor rpm abnormality
Motor overcurrent
Finisher control PWB trouble

Check
and
remedy

Check the pusher motor operation with
SIM 3-3.

15

Content Finisher elevator motor trouble

Detail

Elevator motor trouble

Cause

Motor lock
Motor rpm abnormality
Motor overcurrent
Finisher control PWB trouble

Check
and
remedy

Check the elevator motor operation with
SIM 3-3.

Trouble code

Description

Main
code

Sub

code

F1

80

Content Finisher power trouble

Detail

24V power is not supplied to the finisher
PWB.

Cause

Connector harness improper connection
or disconnection
Finisher control PWB trouble
Power unit trouble

Check
and
remedy

Check the sensor operation with SIM 3-2.

F2

00

Content Toner control sensor open

Detail

Toner control sensor output open

Cause

Connector harness trouble
Connector unconnected.

Check
and
remedy

Check connection of the toner control
sensor.
Check connection of the connector
harness with the main PWB.
Check for disconnection of the harness.

02

Content Toner motor connector disconnected

Detail

Connection detection signal with toner
motor is OFF

Cause

Connector harness defective
Connector disconnected

Check
and
remedy

Check toner motor connector for
connection.
Check connector harness to main PWB
for connection.
Check harness for broken wire.

31

Content Process control trouble (OPC base

surface reflection factor is improper)

Detail

Usually the sensor gain is adjusted so
that the output is a certain value, by
reading the drum base surface with the
image density sensor before starting
process control.
However, a certain output is not obtained
by adjusting the sensor gain.

Cause

Image density sensor defective

Check
and
remedy

Check process control sensor output with
SIM44-2. (Do not adjust)
If the result is far different from the
specified value, it suggests the sensor is
defective. Check the sensor and
harness.
If the deviation is relatively small, check
the sensor and drum surface for
contamination.

11 – 3

Trouble code

Description

Main
code

Sub

code

F2

32

Content Process control trouble (drum marking

sensor defective)

Detail

Usually the sensor gain is adjusted so
that the output is a certain value, by
reading the drum base surface with the
drum marking sensor before starting
process control.
However, a certain output is not obtained
by adjusting the sensor gain.

Cause

Drum marking sensor defective
Improper connection of harness between
PCU PWB and drum marking sensor
Drum marking sensor contaminated
OPC drum cleaning improper
Charging voltage improper

Check
and
remedy

Check process control output with
SIM44-02. (Do not adjust.)
If the result is far different from the
specified value, it suggests the sensor is
defective. Check the sensor and
harness.
If the deviation is relatively small, check
the sensor and drum surface for
contamination.

37

Content Drum marking sensor gain adjustment

error

Detail

When the drum marking area surface is
scanned with the drum marking sensor
before starting process control and the
sensor gain ia adjusted until a constant
output is provided, the output is not be
constant though the sensor gain is
changed.

Cause

Drum marking sensor trouble
Improper connection between PCU PWB
and drum marking sensor
Drum marking sensor is dirty
OPC drum cleaning trouble

Check
and
remedy

Perform the gain adjustment of process
control sensor with SIM 44-2.
If ERROR is displayed, it may be a
breakdown. Check the sensor and the
harness.
When the adjustment is completed,
check the drum surface conditions.

F3

12

Content Upper cassette lift-up trouble

Detail

UPED does not turn on within the
specified time.
ULUD does not turn on within the
specified time.

Cause

UPED or ULUD defective
Upper cassette lift-up motor defective
Improper connection of harness between
PCU PWB, lift-up unit, and paper feed
unit.

Check
and
remedy

Check UPED, ULUD and their harness
and connector.
Check lift-up unit.

Trouble code

Description

Main
code

Sub

code

F3

22

Content Lower cassette lift-up trouble

Detail

LPED does not turn on within the
specified time.
LLUD does not turn on within the
specified time.

Cause

LPED or LLUD defective
Lower cassette lift-up motor defective
Improper connection of harness between
PCU PWB, lift-up unit, and paper feed
unit.

Check
and
remedy

Check LPED, LLUD, their harnesses and
connectors.
Check lift-up unit.

H2

00

…

HL1

01

…

HL2

Content Thermister open

Fusing unit not installed

Detail

Thermister is open (more than 4.6-V
input voltage is detected).
Fusing unit not installed

Cause

Thermister defective
Control PWB defective
Improper connection of fusing connector
AC power supply defective
Fusing unit not installed

Check
and
remedy

Check harness and connector between
thermister and control PWB.
Clear the display of self-diagnostics with
SIM14.

H3

00

…

HL1

01

…

HL2

Content Too hot fusing section

Detail

The fusing temperature is over 241.5° C
(less than 1.3-V input voltage is
detected.)

Cause

Thermister defective
Control PWB defective
Improper connection of fusing unit
connector
AC power supply defective

Check
and
remedy

Check heater lamp operation with
SIM5-2.
If lamp blinks properly:
  Check thermister and its harness.
 Check 

thermister 

input 

circuit 

of 

control

PWB.
If lamp lights and stays lit:
  Check lamp control circuits of AC PWB
and control PWB.
Clear the trouble with SIM14.

11 – 4

Trouble code

Description

Main
code

Sub

code

H4

00

…

HL1

01

…

HL2

Content Too cold fusing section

Detail

The temperature does not reach the
preset value within the specified time (3
min. in usual modes; 5 min. in curl
correction mode.) after the power relay is
turned on.

Cause

Thermister defective
Heater lamp defective
Control PWB defective
Thermostat defective
AC power supply defective
Interlock switch defective

Check
and
remedy

Check heater lamp for blinking with
SIM5-2.
If lamp blinks properly:
  Check thermister and its harness.
  Check thermister input circuit of control
PWB.
If lamp does not light:
  Check heater lamp for broken wire and
thermostat for operation.
  Check interlock switch.
  Check lamp control circuit of AC PWB
and control PWB.
Clear the trouble with SIM14.

H5

01

Content 3 continuous POD1 not-reaching JAM

detection

Detail

3 continuous POD1 not-reaching JAM
detection

Cause

Check that the fusing JAM is completely
cancelled. (Jam paper may be
remained.)
POD1 sensor trouble or improper
harness connection
Improper installation of the fusing
harness.

Check
and
remedy

Check JAM paper in the fusing section.
(Winding, etc.)
Check POD1 sensor harness. Check the
fusing unit installation.
Cancel the trouble with SIM 14.

L1

00

Content Scanner field trouble

Detail

Scanner field is not finished within the
specified time. (timer is change by
magnification)

Cause

Mirror unit defective
Scanner wire disconnected

Check
and
remedy

Check scanning operation with SIM1-1.

L3

00

Content Scanner return trouble

Detail

Scanner return is not finished within the
specified time. (timer is change by
magnification)

Cause

Mirror unit defective
Scanner wire disconnected

Check
and
remedy

Check scanning operation with SIM1-1.

Trouble code

Description

Main
code

Sub

code

L4

01

Content Main motor lock detected

Detail

Motor lock signal is detected for 1.5
seconds during main motor rotation

Cause

Main motor defective
Improper connection of harness between
PCU PWB and main motor
Control circuit defective

Check
and
remedy

Check main motor operation with
SIM25-1.
Check harness and connector between
PCU PWB and main motor.

L6

10

Content Polygon motor lock detected

Detail

It was judged that there is no output of
polygon motor lock signal of LSU.
The lock signal was checked at about
10-second intervals after the polygon
motor started rotating. As result, it was
judged that the polygon motor failed to
operate normally.

Cause

Disconnected connecter to LSU or
detached harness inside LSU or broken
wire.
Polygon motor defective

Check
and
remedy

Check polygon motor operation with
SIM61-1.
Check harness and connector for
connection. Replace LSU if needed.

L8

01

Content No full-wave signal

Detail

Full-wave signal is not detected.

Cause

PCU PWB trouble
Power unit trouble

Check
and
remedy

Check connection of the harness and the
connector.
Replace the PCU PWB. 
Replace the power unit.

02

Content Full-wave signal abnormality

Detai

Full-wave signal frequency abnormality
detected.
(The detected frequency: 69Hz or above
or 42.5Hz or below)

Cause

Check for disconnection or improper
connection of the connector of the PCU
PWB and the power PWB harness.
PCU PWB trouble
Power unit trouble

Check
and
remedy

Check connection of the harness and
connector.
Replace the power unit.

11 – 5