Service Tables; Test Point Table; Variable Resistor Table - Ricoh FT7770 Service Manual

SERVICE TABLES

1. Test Point Table

Number Specificat ion
TP101 GND
TP102
TP103
TPl04
TPl05
No original:
TP106

2. Variable Resistor Table

Number
VR101
VR102
VR103
VR104
No original:
VR105
VR106
VR107
+24v
+5V
+12V
Registration sensor signal (Adjust using VR104)
Less than 3V
With original: More than 9V
Feed Hole sensor signal (Factory use only)
Function
Adjusts belt motor (M2) speed (LED 108 turns on when adjusted
correctly. )
Adjusts feed-in motor (Ml) speed (LED 108 turns on. )
Adjusts inverter motor (M3) speed (LED 108 turns on. )
Adjusts registration sensor signal level.
Less than 3V
With original: More than 9V
Adjusts registration of the final page of the computer form in
CFF mode.
Adjusts the 2nd side original registration
Adjusts the 1st side original registration
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April, '89