2) Background Is Dirty (Fig.7.2 B ); Background Is Dirty (Fig.7.2 B ); Background Is Dirty (Partly); Background Is Dirty (Totally) - Oki C5650 Maintenance Instructions Manual

7.5.3.(2)

Background is dirty (Fig.7.2 B )

(2-1)Background is dirty (partly)

Confirmation Items
(2-1-1) ID unit
Drum exposed to light
Leak of toner
(2-1-2) Fuser unit
Offset toner of fuser unit

(2-2)Background is dirty (totally)

Confirmation Items
(2-2-1) Print medium
Type of medium
(2-2-2) High-voltage terminal
ID unit terminal
43827101TH Rev.2
Confirmation Tasks
Check to see if the ID unit has been left in an environment
where its surface was exposed to light for a long time.
Check to see if toner is leaking from the ID unit or toner
cartridge.
Check to see if the fuser unit has offset toner from the previous
print job sticking.
Confirmation Tasks
Check to see if an especially thin medium is used for printing.
Ensure visually that the high-voltage terminal of the ID unit is
properly in contact with the contact ASSY (see Figure 7-3).
Oki Data CONFIDENTIAL
Action at NG
Replace the ID unit. To
use a new ID unit on a
trial basis, use FUSE
KEEP MODE of the
System Maintenance
Menu.
Replace the ID unit or
toner cartridge. To use
a new ID unit on a trial
basis, use FUSE KEEP
MODE of the System
Maintenance Menu.
Repeat idle printing by
using waste medium,
until the offset toner is
exhausted to the print
medium. Or, replace
the fuser unit. To use a
new fuser unit on a trial
basis, use FUSE KEEP
MODE of the System
Maintenance Menu.
Action at NG
Use the prescribed
paper.
Replace the ID unit or
modify the high-
voltage terminal. To
use a new ID unit on a
trial basis, use FUSE
KEEP MODE of the
System Maintenance
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