Oki C810 - 2) Stain on White Print (Refer to Figure 7-2 B.); Stain on White Print (Overall Stain); Stain on White Print (Partial Stain); Stain on White Print (Refer to Figure 7-2 B.)

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Oki Data CONFIDENTIAL
7. TROUBLESHOOTING PROCEDURE
7.5.3.(2) Stain on white print (Refer to Figure 7-2 B.)
(2-1) Stain on white print (Partial stain)
Check item Check work
Action to be taken
at NG
(2-1-1) ID unit
Exposure of drum to
light
Is the drum left in a circumstance in which drum
surface is exposed to direct light for a long time?
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.
Leakage of toner Does toner leak out from either ID unit or from
toner cartridge?
Replace the ID
unit or toner
cartridge.
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.
(2-1-2) Fuser unit
Offset toner of the
fuser unit
Check if the offset toner of the previous printing
is left adhered on the fuser unit or not, by visual
inspection.
Repeat blind
printing using
unwanted media
until offset toner
is created on
print media.
Alternately
replace the
fuser unit. If
any attempt of
using new fuser
unit as a trial
is going to be
made, be sure to
use the System
Maintenance
Menu FUSE
KEEP MODE.
(2-2) Stain on white print (overall stain)
Check item Check work
Action to be taken
at NG
(2-2-1) Print media
Type of print media Chec
k to see that the print media which is used
for printing is not a specially thin media.
Use the normal
paper.
(2-2-2) 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
7-3.)
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.