Oki Data CONFIDENTIAL
45850101TH Rev.1
2-76
2. TROUBLESHOOTING PROCEDURES
2.5.6.(3) White print (Refer to Figure 2-1 C.)
(3-1)
White print over entire page
Check item
Check work
Actions to be taken
at NG
(3-1-1) Toner condition
Remaining amount
of toner
Confirm that sufficient amount of toner
remains inside the ID unit.
Replace the
toner cartridge.
(3-1-2) Exposure condition to light
LED head
Confirm that the LED head is positioned in the
normal position where the LED head opposes
again the drum when the cover is closed.
Check that no obstacle exists in front of the
LED head, that hampers light emission from
the illuminating surface of the LED head.
Correct the
installation
condition of the
LED head.
Connecting
condition of the
LED head
Check that the LED head is normally
connected.
Replace the
LED head.
Drum shaft
Check that the drum shaft keeps contacting
with the right and left side plates normally.
Replace the ID
unit.
If any attempt
of using new
ID unit as a
trial is going
to be made,
be sure to use
the System
Maintenance
Menu FUSE
KEEP MODE.
F15, F16, fuse on
the CU/PU board
Measure resistance of F15, F16.
1
Ω
or less: Normal
Higher than 1
Ω
: NG
Replace the
CU/PU board
Check item
Check work
Actions to be taken
at NG
(3-1-3) High voltage terminal
ID unit terminal
Check that the high voltage terminal of the ID
unit is contacting with the Contact Assembly
normally by visual inspection. (Refer to Figure
2-2.)
Replace the ID
unit or correct
the high voltage
terminal.
If any attempt
of using new
ID unit as a
trial is going
to be made,
be sure to use
the System
Maintenance
Menu FUSE
KEEP MODE.
