17 January, 2003
PROCESS CONTROL ERROR CONDITIONS
4-5
Trouble-
shooting
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 improper 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 properly. All error codes Check all units and high voltage
cable connectors.
None of the patterns are developed.
4
Development does not work properly. 09, 04
Check all units and high voltage
cable connectors.
Some of the patterns are not developed;
5
Development does not work properly. 07, 08
Check all units and high voltage
cable connectors.
The machine is not in the condition to execute the line position adjustment;
The machine is in the toner near end
or end condition.
13 Replenish
toner.
The machine is not ready to do the
line position adjustment manually from
the user menu.
17
Wait until machine becomes the
ready condition from the energy
saver or auto off mode.
6
Line position adjustment cannot be
done due to failed potential control.
18
Fix the problem causing the potential
control error.
The MUSIC CPU is abnormal (1)
7
No error code is displayed. However,
the machine keeps displaying
“execution” on the screen.
In addition, the green LED on the
BICU stays on or off under the
following condition.
1. The MUSIC CPU resets due to
electrical noise generated by a high
voltage leak on a damaged OPC
drum.
-
1. Fix the bias leak and/or replace
PCU