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Board Descriptions
A - 7
OKIOFFICE 44
Service Manual, P/N 59276801
NCU Board (UNC5)
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Conversion of receive data and receive signals to internal signal level
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Conversion of send data and send signals to external signal level
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Generation of dial pulses to telephone line
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Detection of ringing signal
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Detection of busy tone (conjunction with Modem unit)
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Detection of hook up signal
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Interface with telephone handset (option)
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Output of send data and send signals to telephone line
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Input of receive data and receive signals from telephone line
Power Supply Unit
048-POW (120V/230V), TLHV/OLHV Board for OKIOFFICE44
•
Conversion of main alternating current to the following direct currents:
+5V DC power supply
+8V DC/-8V DC power supply
+30V DC power supply
•
Supplying of main alternating current to fuser unit
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Generation of medium vo300V, -300V, +400V, -450V and 0V
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Generation of high voltages -1.35 kV, -0.75 kV and +3.5 kV
Memory Board (Option)
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Memory storage for ECM operations, memory broadcast, delayed broadcast, etc.
CTR Board (PC Interface)
•
Driver circuits
HOOK Board (Option)
•
Hook switch circuit
TELU Board (Option)
This is contained within the optional handset.
•
Speech network circuit
Basic speech functions included.
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...