Minolta Di152 Service Manual page 129

Step Check
5 Manual Bypass Solenoid (SL2) is
operational when the Start key is
pressed.
<Check Procedure>
Check voltage across a Master Board
(copier: PWB-A) pin and GND.
• Voltage across PJ4A-2 and GND
In standby: DC24 V
When pressed: DC0 V
6 Manual Feed Paper Sensor (PC2) is
operational.
<Check Procedure>
Check voltage across a Master Board
(copier: PWB-A) pin and GND when
the sensor is blocked.
• Voltage across PJ4A-5 and GND
When unblocked: DC5 V
When blocked: DC0 V
7 Synchronizing Roller Sensor (PC1) is
operational.
<Check Procedure>
Check voltage across a Master Board
(copier: PWB-A) pin and GND when
the sensor is blocked.
• Voltage across PJ6A-3 and GND
When blocked: DC5 V
When unblocked: DC0 V
Misfeed at Multiple Bypass Tray J06 Troubleshooting Procedures
Step Check
1 Paper meets product specifications.
2 Paper is curled, wavy, or damp.
3 Paper Guides are at correct position
to accommodate paper.
4 • Paper Take-Up Roll drive shaft
(Multiple Bypass Tray) turns when
the Start key is pressed.
Result
NO • Change Manual Bypass Solenoid
(SL2).
NO • Change Manual Feed Paper Sen-
sor (PC2).
NO • Change Synchronizing Roller Sen-
sor (PC1).
YES • Change Master Board (copier:
PWB-A).
Result
NO • Change paper.
YES • Change paper.
• Instruct user to load paper that
meets product specifications.
NO • Adjust as necessary.
NO • Reinstall.
T-9
Action
Action