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Disassembly
4 - 19
OKIOFFICE 44
Service Manual, P/N 59276801
4.1.3.10 High-Voltage Power Supply Unit (TLHV/OLHV)
(1) Disassembly procedure
a)
First, carry out procedure up to the point of the
4.1.3.2 (ID Unit, Cover-Rear, Cover-NCU and
Cover-MAIN).
b)
Remove the three screws 1 and draw out high-
voltage power supply board (TLHV/OLHV).
c)
Disconnect all the cables 3 and 4 from high-voltage
power supply board (TLHV/OLHV) and dismount
high-voltage power supply board.
Caution:
Note the following when assembling the high-voltage power supply board:
•
Mount the high-voltage power supply board with Cover-top assembly removed or open.
•
Take care that cable
3
will not interfere with the paper sensor exit when it is connected.
(2) Reassembly procedure
Reverse the disassembly procedures.
Cable
3
Screw
1
Screw
1
TLHV/OLHV board
Cable
4
(CP4.1 Fig. 25)
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
develops voltages of
up to 1300 VDC as part
of the normal printing
process.
OKIDATA recommends
that the unit be pow-
ered OFF (AC supply
cord disconnected)
before removing the
Main Cover for service.
In the event that it is
necessary to trouble-
shoot the unit with the
Main Cover removed,
with AC power sup-
plied, please take every
caution to avoid touch-
ing the exposed cir-
cuitry of the High Volt-
age Power Supply Unit.
To do so accidentally
can result in a shock
hazard.
Summary of Contents for OKIOFFICE 44
Page 2: ...All specifications are subject to change without notice Service Manual OKIOFFICE 44 59276801...
Page 135: ...Disassembly 4 6 OKIOFFICE 44 Service Manual P N 59276801 Whole Unit Picture FX048 CP4 1 Fig 01...
Page 329: ...Illustrated Parts List D 6 OKIOFFICE 44 Service Manual P N 59276801 Section 2 Printer Unit...
Page 331: ...Illustrated Parts List D 8 OKIOFFICE 44 Service Manual P N 59276801 Section 3 Operator Panel...
Page 351: ...Illustrated Parts List D 28 OKIOFFICE 44 Service Manual P N 59276801 Section 12 Cables...
Page 357: ...Board Layout E 2 OKIOFFICE 44 Service Manual P N 59276801 MEM eps E 2 MEM PCB...
Page 358: ...Board Layout E 3 OKIOFFICE 44 Service Manual P N 59276801 TEL U eps E 3 TEL U PCB...
Page 359: ...Board Layout E 4 OKIOFFICE 44 Service Manual P N 59276801 Hook eps E 4 Hook PCB...
Page 388: ...OKIOFFICE 44 Service Manual Part Number 59276801 Printed in the USA...