Ricoh B230 Service Manual page 345

SM
The main scan
registrations of M, C,
Y are shifted by more
1.
than ± 1.4 mm from
2.
the main scan
registration of Bk.
3.
The sub scan
registrations of M, C,
Y are shifted by more
than ± 1.4 mm from 1.
the sub scan 2.
registration of Bk. 3.
4.
The main scan
registration is shifted
by more than ± 0.66
mm, but only at the
1.
central area of the
2.
image on the output.
3.
The skew for M, C, Y
is more than ± 0.75
mm from the main
1.
scan registration of
2.
Bk. – at the end of
the scan line?
3.
Others
1.
4-105
No defective component
Defective laser optics housing unit
Defective BICU
Do SP2-111-003 again.
Replace the laser optics housing
unit.
Replace the BICU.
No defective component
Defective image transfer belt
Defective drive units
Defective BICU
Do SP2-111-003 again.
Replace the image transfer belt.
Replace the drum motor.
Replace the BICU.
Defective ID sensor at center
Deformed center area on the
image transfer belt
Defective BICU
Replace the ID sensor.
Replace the image transfer belt.
Replace the BICU.
Defective PCU
Defective laser optics housing unit
Defective BICU
Reinstall or replace the PCU.
Replace the laser optics housing
unit.
Replace the BICU.
Skew correction upper limit error
Defective BICU
Reset the skew correction value
B230/B237