Ricoh G133 - Page 299

Troubleshooting Guide
SM 4-83 G133
Trouble-
shooting
After Executing SP2-111-001
The skew for M, C, Y
is more than ± 0.75
mm from the main
scan registration of
Bk. – at the end of
the scan line?
 Defective PCU
 Defective laser optics housing unit
 Defective EGB
1. Reinstall or replace the PCU.
2. Replace the laser optics housing
unit.
3. Replace the EGB.
Others
 Skew correction upper limit error
 Defective EGB
 Defective laser optics housing unit
1. Replace the EGB.
2. Replace the laser optics housing
unit.
The main scan
registration of Bk is
shifted.
 Abnormal SP setting value of
main scan: Bk
1. Adjust the value with
SP2-101-001.
No color
registration
errors
The main scan
length of Bk is
shifted.
 Abnormal SP setting value of
main scan length detection: Bk
1. Adjust the value with
SP2-185-001.
Low image density
on the output
 Low pattern density
1. Do the forced process control
(SP3-011-001) or supply some
toner (SP3-015-xxx).
Result:
"0"
Color
registration
errors
The main scan
registration is shifted,
but only at the
central area of the
image on the output.
 Defective ID sensor at center
 Deformed center area on the
image transfer belt
 Defective EGB
1. Replace the ID sensor.
2. Replace the image transfer belt.