Toshiba MJ-1027 Service Manual page 128

CHAPTER 3 SADDLE STITCHER UNIT BASIC OPERATION
b. By delivery sensor
The delivery sensor (PI11S) does not turn OFF within a specific period of time (feeding) after
it has 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) or 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 turn ON within 0.5 secs after it has turned OFF. In addition, the sensor
turns ON within 0.5 secs after the motor has been rotated counterclockwise.
9. Saddle Stitcher Feeding Delay Jam (by the paper sensor for the paper position-
ing plate)
The paper sensor for the paper positioning plate is not turned ON at the start of the push (fold-
ing) operation.
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.
3-42
Normal
× 1.5 mm
Figure 3-608
Delivery sensor
Paper folding motor
Paper length
T: Feeding of
Jam
Load stops
× 1.5 mm