Copier Paper Feed Cover Failure; Adf (Option) Failure; Sorter Copy Paper Removal - Panasonic FP-7742 Service Manual

(5) U6: Copier paper feed cover failure
*The copier does not indicate READY TO COPY when the copier paper feed cover is closed.
Is the paper feed cover closed securely?
Does CN5-7, 9, 11 (output signal of CPU)
change when the paper feed cover is
opened and closed?
(6) U7: System console (option) paper feed cover failure
*The copier does not indicate READY TO COPY when the system console paper feed cover is closed.
Is the paper feed cover closed securely?
Does CN611 (output signal of system
console driver) change when the paper
feed cover is opened and closed?
System console drive PCB is defective.
(Refer to system console Service Manual)
(7) U10: ADF (option) failure
*The copier does not indicate READY TO COPY when the original is placed onto the original feed tray.
Is the ADF closed securely?
Is the ADF entry cover closed securely?
Is the ADF exit cover closed securely?
Refer to the ADF Service Manual.
(8) U11: Sorter copy paper removal
*When the Staple Sort or Sort mode is selected:
Copies are already in at least one bin.
Any bin receives more than 25 copies as a result of the use of the ADF.
Any bin receives a copy which is an unsuitable size for stapler use.
Any bin receives a double feed from the duplex unit.
NOTE: To clear U11, all paper must be removed from all bins.
NO
YES
NO
NO
YES
NO
YES
NO
YES
YES
YES
Close the paper feed cover securely.
Check DC5V of the tray detecting sensor.
Detected: Cover sensor is defective.
Not detected: Check DC5V line.
Close the paper feed cover securely.
Check DC5V of the system console driver.
Detected: Cover sensor is defective.
Not detected: Check DC5V line.
Close the ADF securely.
NO Close the entry cover securely.
NO Close the exit cover securely.
4-35