Oki Data CONFIDENTIAL
44158801TH Rev.2
267 /
Figure 8.3
Ground
Charging Roller
Developing Roller
Toner Supply Roller
8.5.3.(7)
Solid Black Print
(7-1) Solid black on a full page
Confirmation Items
Confirmation Tasks
Action at NG
(7-1-1) High-voltage contact state
CH terminal
Check visually from above to see if the terminal
extending from the printer is properly in contact with the
high-voltage terminal on the left side of the ID unit.
Replace the terminal
of the printer side.
CH terminal
Check to see if the high-voltage terminal remains in
normal contact on the high-voltage PCB. Remove the
high-voltage PCB by opening the left cover, and check to
see if the terminal is abnormally installed.
Redo the installation
of the terminal
properly.
ID unit terminal
Ensure visually that the high-voltage terminal of the ID
unit is properly in contact with the contact ASSY (see
Figure 7-3)
Replace the ID unit,
high-voltage PCB,
or modify the high-
voltage terminal. To
use a new ID unit
on a trial basis, use
FUSE KEEP MODE
of the System
Maintenance Menu.
(7-1-2) State of high-voltage output
CH output
If a high-voltage probe is available among the
maintenance tools, open the left cover, and check the
CH output with the high-voltage probe through the
solder side of the high-voltage PCB while the machine is
printing.
(The high-voltage probe is not an ordinary maintenance
tool.)
Replace the high-
voltage PCB.