Image Drum And Covers (Rear, Ncu, Main) And Ncu Board - Oki OKIOFFICE44 Service Manual

4.1.3.2 Image Drum and Covers (Rear, NCU, Main) and NCU Board

Service Caution:
The High Voltage Power Supply
PCB in the OKIOFFICE 44 is
mounted vertically on the left
side of the unit, with the land side
fully exposed. This board devel-
ops voltages of up to 1300 VDC
as part of the normal printing
process.
OKIDATA recommends that the
unit be powered OFF (AC supply
cord disconnected) before re-
moving the Main Cover for ser-
vice. In the event that it is neces-
sary to troubleshoot the unit with
the Main Cover removed, with AC
power supplied, please take
every caution to avoid touching
the exposed circuitry of the High
Voltage Power Supply Unit. To
do so accidentally can result in a
shock hazard.
(1) Disassembly procedure
a) Open the cover assembly-top by
raising.
b) Remove the image drum unit.
c) Cover-Rear:
Remove the Cover-Rear by
removing the screw 1 and the
detach the fixing hooks (2).
d) Cover-NCU:
Remove the Cover-NCU by
removing the screw 2 and detach-
ing the fixing hooks (4).
Disassembly
Cover assembly-top
Cover-Rear
4 - 8
Service Manual, P/N 59276801
ID unit
(CP4.1 Fig. 05)
Cover-NCU
Fixing hook
Screw 2
Hook
Screw 1
OKIOFFICE 44