9. SELF-DIAGNOSTICS
•
Trouble codes are displayed on the multiple display area on the
copy screen. If the [PRINT] key is pressed with a trouble code
displayed, the corresponding sub code is displayed.
•
Trouble codes and sub codes are displayed on the message area
on the printer screen.
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.
E7
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.
E7
12
Content Shading trouble (intermediate tone
correction)
Detail
Improper CCD white reference late reading
level for copy lamp dark 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
ICU PWB error
Check
and
remedy
Clean mirror, lens, or reference white plate.
Check copy lamp for light amount (SIM5-3,
"11") and lighting
Check CCD unit
Check ICU PWB
E7
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)
Copy lamp light amount is more than "46"
of SIM5-3.
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 (SIM5-5)
and lighting.
Check CCD unit.
Check ICU PWB.
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