Power-On Jam; Door Open Jam; Stitcher Staple Jam - Sharp AR-FN8 Service Manual

CHAPTER 3 SADDLE STITCHER UNIT BASIC OPERATION
b. By delivery sensor
The delivery sensor (PI11S) does not go OFF within a specific period of time (feeding) after it
has been turned ON.
Delivery sensor
Paper folding motor
Paper length
T: Feeding of
6.

Power-ON Jam

Any of the No.1 paper sensor (PI18S), No.2 paper sensor (PI19S), No.3 paper sensor (PI20S),
Vertical path paper sensor (PI17S) and delivery sensor (PI11S) on the paper sensor PCB detects
paper at power-ON.
7.

Door Open Jam

The front door open/closed sensor (PI2S), outlet cover sensor (PI3S), or inlet cover sensor
(PI9S) finds that the respective cover is open during operation.
8.

Stitcher Staple Jam

When the stitcher motor (M7S/M6S) is rotating clockwise, the stitcher home position sensor
(MS7S/MS5S) does not come ON within 0.5 sec after it has been turned OFF. In addition, the
sensor is turned ON within 0.5 sec after the motor has been rotated counterclockwise.
Reference:
When all doors are closed after the user has removed the jam, the saddle stitcher unit checks whether
the vertical path paper sensor (PI17S) has detected the presence of paper. If the sensor has detected
paper, the unit will identify the condition as being faulty jam removal and send the jam signal to the
host machine once again.
3-44
Normal
× 1.5 mm
Figure 3-608
Delivery sensor
Paper folding motor
Paper length
T: Feeding of
am
Load stops
× 1.5 mm