FrameMaker Ver5.5 (PC) CF910 TROUBLESHOOTING
98.03.13
<Troubleshooting Procedure>
CauseStepCheck ItemResultAction
Defective 8Is the inside of the DeveYlEoSpinRge move the foreign mat-
Developing Unit plugged with foreign mat-ter. If the problem recurs,
Unitter or toner?change the developer.
(?Developer? and ?Grada-
tion Adjust?)
9Is the Toner ReplenishingY ES Remove the foreign matter.
Shutter clogged with foreign
matter?
10 Is the developing bias beNiOng Check the wiring between
output properly?PWB-I and HV4 and, if it is
intact, change HV4.
11 Does each color Toner ReplNOen-C. Check the wiring
ishing Motor turn?between PWB-I and
Motor.
D. Check the motor drive
for possible overload,
change Motor.
Defective 12 Is the Magnet Roller posiYEStion of ? Readjust the Carrier
Developing the Carrier Retrieving Assy Retrieving Magnet Roller
Unitcorrect?Position by Jig.
Or, Does the Carrier stick on ? Clean the surface of the
the Magnet Roller?Carrier Retrieving Mag-
net Roller with sand
paper.
? Clean the inside of the
Carrier Retrieving Assy.
Defective PC 13 Is the surface of the PC DYErSum Change the PC Drum.
Drumdirty or scratched?Change the Cleaning Blade
as a set if necessary.
(?AIDC Mode/AIDC Offset?
and ?Gradation Adjust?)
Defective 14 Is the Image Transfer CorYoEnaS Clean or change the Image
Image Trans-dirty or deteriorated?Transfer Corona.
fer Corona15 Is the Image Transfer CorNOona Referring to
output proper?DIS/REASSEMBLY,
ADJUSTMENT, readjust
the Image Transfer Corona
output.
Defective 16 Is the HV2 output proper?NO Check the connection of
Paper Sepa-the connector on the board,
rator/ Charge and if it is proper, change
Neutralizing HV2.
Unit
T-70 |