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Board Descriptions
A - 1
OKIOFFICE 44
Service Manual, P/N 59276801
Appendix A: Board Descriptions
PREFACE
This appendix provides basic information concerning the electric section for the component-level
maintenance of the OKIOFFICE 44. It includes such information which will help maintenance personnel
to understand the circuit operations.
This appendix will also provide the reader information concerning the functions of units and the relation-
ships among the units which will assist you in conducting unit-level maintenance.
Service Caution
The High Voltage Power Supply Unit 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 powered OFF (AC supply cord discon-
nected) before removing the Main Cover for service. In the event that it is neces-
sary to troubleshoot the unit with the Main Cover removed, with AC power sup-
plied, 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.
DANGER
Do Not
Touch !
HIGH VOLTAGE
You may be subjected to high-voltage electric shock by touching the
following parts without an insulating material:
a. High-voltage unit
b. Contact ass'y
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...