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Adjustments
5 - 2
OKIOFFICE 44
Service Manual, P/N 59276801
5.2
Confirmation Items
The clock frequency and power voltage of the machine are not possible to adjust in the field.
However, their measurement procedures are described here for confirmation of clock frequency and each
voltage.
1)
Clock Frequency
•
Measurement point:
R44 board; LC2-3 pin and ground terminal
•
Specification:
20.000 MHz
±
50 PPM
Note:
If the counter does not read with 20.000 MHz, replace with a new crystal oscillator (X1).
2)
+5V DC Voltage (SUB)
•
Measurement point:
R44 board; CN7-12 pin and ground terminal
•
Specification:
+5V
±
4% (+4.5V to 5.2V)
3)
+5V DC Voltage
•
Measurement point:
R44 board; CN7-1, 2 & 3 pin and ground terminal
•
Specification:
+5V
±
4% (+4.5V to 5.2V)
4)
–8V DC Voltage
•
Measurement point:
R44 board; CN7-9 pin and ground terminal
•
Specification:
–15V to –6.5V
5)
+30V DC Voltage
•
Measurement point:
R44 board; CN7-8 pin and ground terminal
•
Specification:
+24V to +45V
6)
Contact Image Sensor Output (SIG signal)
•
Measurement point:
R44 board; CN5-1 pin and ground terminal
•
Specification:
A waveform sample is shown below.
•
Test chart:
White sheet (A4 size)
2.0Vp-p
5ms
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...