Service manual

PROCESS CONTROL ERROR CONDITIONS
G130/G131 4-6 SM
No. Result Description Note
86
Yellow & cyan &
magenta
magnification error
The detected magnification value is out of the
adjustment range (yellow + cyan + magenta).
87
Yellow & cyan &
magenta sub scan
registration error
The detected sub scan registration is out of the
adjustment range (yellow + cyan + magenta).
88
Yellow & cyan &
magenta main
scan registration
error
The detected main scan registration is out of the
adjustment range (yellow + cyan + magenta).
89
Yellow & cyan &
magenta skew
correction error
The detected skew correction value is out of the
adjustment range (yellow + cyan + magenta).
Note 1: Error codes (05, 06, 07 or 10) stop sampling data at following times: The
front, center, or, rear ID sensor detect an error. The machine can show the
error codes for all ID sensors in some cases.
Possible causes of errors in the line position adjustment
Possible Cause
Possible
Error Code
Action
The pattern does not reach the proper density.
1. Dirty ID sensor (toner, dust, or
foreign material)
1. Clean the ID sensors.
2. Incorrect toner density
Low: ID sensor cannot detect the
pattern lines.
High: Lines may be partially blank
due to incorrect toner density and/or
paper transfer current.
2. Correct the toner density.
1
3. Incorrect transfer current
04, 05, 06, 07,
08, 09, 10
3. Correct the transfer current.
The ID sensors are affected by electrical noise or dirt/damage on the transfer belt.
1. Scratched or damaged OPC drum 1. Replace PCU
2. Scratched or damaged transfer belt 2. Replace transfer belt
3. Dirty transfer belt 3. Clean or replace transfer belt
4. High voltage leak in transfer unit 4. Fix the high voltage leak
5. Residual image on transfer belt 5. Check transfer belt cleaning and
clean the belt
6. Toner dropped from development
unit
6. Clean the development unit and
adjust the toner density
2
7. Carrier dropped from development
unit
02, 03, 04, 05,
06, 10, 11, 12
7. Clean the development unit and
adjust the toner density
The transfer belt is covered with toner. 3
Development does not work correctly. All error codes Check all units and high voltage
cable connectors.
None of the patterns is developed. 4
Development does not work correctly. 09, 04 Check all units and high voltage
cable connectors.
Some of the patterns are not developed; 5
Development does not work correctly. 07, 08 Check all units and high voltage
cable connectors.