2MH/2MJ/2MK/2ML
1-4-13
3500 CPU - ASIC (CCD PWB) communi-
cation error
An error code is detected.
Defective FFC
between CCD
PWB (YC1) and
control PWB
(YC8).
Replace the image scanner unit (ISU)
(See page 1-5-21).
Defective CCD
PWB.
Replace the CCD PWB.
Defective control
PWB.
Replace the control PWB (See page 1-
5-37).
4000 Polygon motor (laser scanner
unit) error
The polygon motor ready input is not
given for 6 s during the polygon
motor is ON.
Defective har-
ness between
polygon motor
and control PWB
(YC10), or
improper con-
nector insertion.
Reinsert the connector. Also check for
continuity within the connector har-
ness. If none, remedy or replace the
harness.
Defective laser
scanner unit.
Replace the laser scanner unit (See
page 1-5-17).
Defective control
PWB.
Replace the control PWB (See page 1-
5-37).
4200 BD error (laser scanner unit) error BD sensor does
not detect laser
beam due to con-
densation on the
polygon mirror.
Turn machine power off for at least 30
minutes, then turn machine on again. If
not cured, replace the laser scanner
unit (See page 1-5-17).
Defective laser
scanner unit.
Replace the laser scanner unit (See
page 1-5-17).
Defective control
PWB.
Replace the control PWB (See page 1-
5-37).
Code Contents
Remarks
Causes
Check procedures
/corrective measures
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