Duplex Unit Misfeed - Minolta CF910 Service Manual

(7) Duplex Unit Misfeed

• Horizontal Transport Drive Clutch CL23
• Horizontal Transport Sensor PC24
<Troubleshooting Procedure>
Symptom Step
• Paper is not
detected.
• Paper is at a
1
stop at the
Horizontal
Transport
2
Section.
3
Possible Defective Components
Check Item
Does the signal of Pap. Through
(PC24) change as checked with
"Switch 2 (Option)"?
Are the Horizontal Transport Roll-
ers deformed, worn, or dirty with
paper dust?
Does M15 turn?
Is the voltage across PJ2K-2 on
PWB-K and GND as follows?
CL23 condition:
When energized: Approx. DC0V
When deenergized: Approx.
DC24V
T-20
• Paper Take-Up Motor M15
• Master Board PWB-I
• Paper Take-Up Board PWB-K
1154C07TAA
Result
NO
YES
YES
NO
YES
NO
Action
Check the PC24 actua-
tor for operation and, if
it is okay, change
PC24.
Clean or change the
Horizontal Transport
Rollers.
Check for possible
overload.
Change PWB-I or M15.
Change CL23.
Change PWB-K.