Ricoh FT6645 Manual page 374

SERVICE CALL CONDITIONS
SC738 - Abnormal staple motor movement (A374, A377 sorter staplers)
Definition: [level: B]
The staple home position sensor does not detect the on condition within 600
msec after the motor starts. Then a jam is indicated. If this occurs twice, this
SC is displayed.
Possible causes:
•
Staple unit (staple motor) defective
•
Staple is jammed in the staple unit.
SC740 - Abnormal staple unit drive motor movement
(A377 sorter stapler / A379 finisher)
Definition: [level: B]
The staple unit home position sensor does not detect the on condition when
the staple unit is in the home position. A jam is indicated.
The staple unit home position sensor does not detect the on condition (within
1640 pulses) when the staple unit moves to the home position. A jam is
indicated.
The staple unit home position sensor does not detect the on condition (within
280 pulses) when the staple unit moves forward from the home position and
moves back to the home position. A jam is indicated.
If the above condition occurs twice, this SC is displayed.
Possible causes:
•
Staple unit drive motor defective
•
Staple unit home position sensor defective
SC741 - Abnormal bin rear plate motor movement (A377 sorter stapler)
Definition: [level: B]
When the rear bin plate is open, the bin rear plate open sensor does not
detect the on condition for 750 msec or more after the motor starts. Then a
jam is indicated.
When the rear bin plate is closed, the bin rear plate home position sensor
does not detect the on condition for 750 msec or more after the motor starts.
Then a jam is indicated.
In the initial condition, the bin rear plate open sensor does not detect the on
condition for 1.25 seconds or more after the motor starts. Then a jam is
indicated.
If the above condition occurs twice, this SC is displayed.
Possible causes:
•
Bin rear plate drive motor defective
•
Bin rear plate open sensor defective
•
Bin rear plate home position sensor defective
6-22
12 April 1993