2L6/2N6/2N5/2N4
1-4-108
4002
Polygon motor C synchroni-
zation error
After polygon motor C is
driven, the ready signal does
not turn to L within 30 s.
The polygon motor speed
Polygon motor C
(LSU)
1. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
Polygon motor C and LSU relay PWB
(YC9)
LSU relay PWB (YC3) and Engine PWB
(YC12)
2. If the wiring is disconnected, shorted or
grounded, replace the wiring.
3. Replace the laser scanner unit (see
page 1-5-43).
Engine PWB
1. Check the engine software and upgrade
to the latest, if necessary.
2. Replace the engine PWB (see page 1-5-
80).
4003
Polygon motor M synchro-
nization error
After polygon motor M is
driven, the ready signal does
not turn to L within 30 s.
The polygon motor speed
Polygon motor M
(LSU)
1. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
Polygon motor M and LSU relay PWB
(YC7)
LSU relay PWB (YC3) and Engine PWB
(YC12)
2. If the wiring is disconnected, shorted or
grounded, replace the wiring.
3. Replace the laser scanner unit (see
page 1-5-43).
Engine PWB
1. Check the engine software and upgrade
to the latest, if necessary.
2. Replace the engine PWB (see page 1-5-
80).
4004
Polygon motor Y synchroni-
zation error
After polygon motor Y is
driven, the ready signal does
not turn to L within 30 s.
The polygon motor speed
Polygon motor Y
(LSU)
1. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
Polygon motor Y and LSU relay PWB
(YC11)
LSU relay PWB (YC3) and Engine PWB
(YC12)
2. If the wiring is disconnected, shorted or
grounded, replace the wiring.
3. Replace the laser scanner unit (see
page 1-5-43).
Engine PWB
1. Check the engine software and upgrade
to the latest, if necessary.
2. Replace the engine PWB (see page 1-5-
80).
Code
Contents
Related parts
Check procedures/
corrective measures
Summary of Contents for TASKalfa 3051ci
Page 5: ...2L6 2N6 2N5 2N4 1 4 4 Machine Option2 Figure 1 4 4 Paper jam location Matchine Option2 ...
Page 201: ...2L6 2N6 2N5 2N4 5 1 4 200 ...
Page 202: ...2L6 2N6 2N5 2N4 5 1 4 201 ...
Page 203: ...2L6 2N6 2N5 2N4 5 1 4 202 ...
Page 204: ...2L6 2N6 2N5 2N4 5 1 4 203 ...
Page 257: ...2L6 2N6 2N5 2N4 5 1 4 256 16 Grainy image See page1 4 272 ...