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Board Descriptions
A - 44
OKIOFFICE 44 Serv. Man., P/N 59276801
A3.5
Power Supply Unit for OKIOFFICE 44
A3.5.1
048 POW (120V/230V) Circuit Diagram
IMPORTANT:
Oki Data Corporation recommends that maintenance of the Power supply unit (048 POW board) be
performed by replacing the entire power supply unit, not by replacement of components.
Therefore,
1)
circuit descriptions in this section are for reference.
2)
orders for components of the power supply unit cannot always be accepted.
Functions of unit:
048 POW circuit generates the following direct currents (DC) based on the alternating current,
AC 120 V
+6%, -15%
AC 230 V
+15%, -14%
1.
Low-voltage power supply circuit
This circuit generates the following voltages.
Output Voltage
Output Voltage
+5 V
Logic circuit supply voltage (IC, LSI), and high-voltage source voltage
-8 V
CIS (contact image sensor)
+24 V
Send motor, drum motor, fan drive, flash memory, CIS, and clutch
2.
Input ratings
•
Voltage
: AC 120 V+6%, -15% (AC 102 V to 127 V)
AC 230 V+15%, -14% (AC 198 V to 264 V)
•
Frequency : 50 Hz/60 Hz +/-2%
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...