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2HL/2HM/2HN-1
1-4-10
4002
Polygon motor MC error
The polygon motor MC ready input is not
given for 10 seconds during the polygon
motor MC is ON.
Defective harness
between polygon
motor MC and
engine PWB
(YC30), or
improper connec-
tor insertion.
Reinsert the connector. Also check for conti-
nuity within the connector harness. If none,
remedy or replace the harness.
Defective laser
scanner unit MC.
Replace the laser scanner unit MC (See
page 1-5-38).
Defective engine
PWB.
Replace the engine PWB (See page 1-5-
30).
4201
Laser output error (Black)
The pin photo signal (PDN) is not output
from PD PWB K for one second while
laser is emitted.
Defective harness
between APC
PWB K and engine
PWB (YC29), or
improper connec-
tor insertion.
Reinsert the connector. Also check for conti-
nuity within the connector harness. If none,
remedy or replace the harness.
Defective APC
PWB K.
Replace the laser scanner unit YK (See
page 1-5-38).
Defective PD PWB
K.
Replace the laser scanner unit YK (See
page 1-5-38).
Defective engine
PWB.
Replace the engine PWB (See page 1-5-
30).
4202
Laser output error (Cyan)
The pin photo signal (PDN) is not output
from PD PWB C for one second while
laser is emitted.
Defective harness
between APC
PWB C and engine
PWB (YC30), or
improper connec-
tor insertion.
Reinsert the connector. Also check for conti-
nuity within the connector harness. If none,
remedy or replace the harness.
Defective APC
PWB C.
Replace the laser scanner unit MC (See
page 1-5-38).
Defective PD PWB
C.
Replace the laser scanner unit MC (See
page 1-5-38).
Defective engine
PWB.
Replace the engine PWB (See page 1-5-
30).
4203
Laser output error (Magenta)
The pin photo signal (PDN) is not output
from PD PWB M for one second while
laser is emitted.
Defective harness
between APC
PWB M and engine
PWB (YC30), or
improper connec-
tor insertion.
Reinsert the connector. Also check for conti-
nuity within the connector harness. If none,
remedy or replace the harness.
Defective APC
PWB M.
Replace the laser scanner unit MC (See
page 1-5-38).
Defective PD PWB
M.
Replace the laser scanner unit MC (See
page 1-5-38).
Defective engine
PWB.
Replace the engine PWB (See page 1-5-
30).
Code
Contents
Remarks
Causes
Check procedures/corrective measures
Summary of Contents for CLP 3521
Page 1: ...Service Manual Color Printer CLP 3521 CLP 3621 CLP 3626 Rev 2 0 Date 21 09 2010 2HNSM062 ...
Page 2: ...Service Manual Color Printer CLP 4521 CLP 4621 CLP 4626 Rev 2 0 Date 21 09 2010 2HNSM062 ...
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