2K5
1-4-26
C3900
Backup memory read/write problem
(scanner PWB)
Read and write data does not match.
Defective backup
RAM or PWB.
Replace the scanner PWB and check for
correct operation.
C3910
Backup memory data problem (scan-
ner PWB)
Data in the specified area of the backup
memory does not match the specified
values.
Defective backup
RAM or PWB.
Replace the scanner PWB and check for
correct operation.
C4000
Polygon motor synchronization prob-
lem
The polygon motor does not reach the
stable speed within 20 s of the START
signal turning on.
Poor contact in the
connector termi-
nals.
Check the connection of connector YC36 on
the engine PWB and laser scanner unit, and
the continuity across the connector termi-
nals. Repair or replace if necessary.
Defective polygon
motor.
Replace the laser scanner unit.
Defective engine
PWB.
Replace the engine PWB and check for cor-
rect operation.
C4010
Polygon motor steady-state problem
Stable OFF is detected for 5 s continu-
ously after polygon motor stability.
Poor contact in the
connector termi-
nals.
Check the connection of connector YC36 on
the engine PWB and laser scanner unit, and
the continuity across the connector termi-
nals. Repair or replace if necessary.
Defective polygon
motor.
Replace the laser scanner unit.
Defective engine
PWB.
Replace the engine PWB and check for cor-
rect operation.
C4200
BD initialization problem
ASIC detects a BD error A for 4 s after
the polygon motor rotation has been sta-
bilized.
Poor contact in the
connector termi-
nals.
Check the connection of connector YC36 on
the engine PWB and laser scanner unit, and
the continuity across the connector termi-
nals. Repair or replace if necessary.
Defective polygon
motor.
Replace the laser scanner unit.
Defective engine
PWB.
Replace the engine PWB and check for cor-
rect operation.
C6000
Fuser heater break
Fuser thermistor 1 detected less than
40
°
C/104
°
F for 14 s during warm-up and
ready in.
Fuser thermistor 2 detected less than
70
°
C/158
°
F for 14 s during warm-up and
ready in.
Defective fuser
heater 1 or 2.
Replace the fuser heater 1 or 2.
Installation defec-
tiveness on fuser
thermistor 1 or 2.
Check the mounting state of the fuser ther-
mistor 1 or 2. If any problem is found, repair
it.
Defective fuser
thermostat.
Replace the fuser thermostat.
Defective PWB.
Replace the power source PWB or engine
PWB and check for correct operation.
Code
Contents
Remarks
Causes
Check procedures/corrective measures
Summary of Contents for TASKALFA 300I
Page 1: ...SERVICE MANUAL Published in February 2010 842K5111 2K5SM061 Rev 1 TASKalfa 300i ...
Page 4: ...This page is intentionally left blank ...
Page 10: ...This page is intentionally left blank ...
Page 14: ...2K5 This page is intentionally left blank ...
Page 22: ...2K5 1 1 8 This page is intentionally left blank ...
Page 196: ...2K5 1 4 52 This page is intentionally left blank ...
Page 252: ...2K5 1 5 56 This page is intentionally left blank ...
Page 274: ...2K5 2 1 20 This page is intentionally left blank ...
Page 310: ...2K5 2 3 28 This page is intentionally left blank ...
Page 347: ...INSTALLATION GUIDE FOR PAPER FEEDER ...
Page 369: ...INSTALLATION GUIDE FOR BUILT IN FINISHER ...
Page 381: ...INSTALLATION GUIDE FOR JOB SEPARATOR ...
Page 391: ...INSTALLATION GUIDE FOR FAX System ...
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