Canon Staple Finisher-AA1 Service Manual page 32

<Related service mode>
(Lv.1) COPIER > DISPLAY > VERSION > SORTER
(Lv.1) COPIER > DISPLAY > VERSION > SDL-STCH
<Related error code>
E503-0021:Error in communication between the Finisher and Saddle Stitcher
E503-0022:Error in communication between the Finisher and Saddle Stitcher
E503-0041:Error in communication between the Finisher and Buffer Pass
E503-0042:Error in communication between the Finisher and Buffer Pass
E503-0061:Error in communication between the IC of Finisher Controller PCB
E503-0062:Error in communication between the IC of Finisher Controller PCB
• Buffer Pass Unit
The buffer pass operation sequence is controlled by the buffer pass controller PCB.
The buffer pass controller PCB has a 32-bit CPU that performs sequence control.
The buffer pass controller PCB receives various commands through the communication cable from its host to drive the motors.
It also sends sensor information to its host through the communication cable.
<Related service mode>
(Lv.1) COPIER > DISPLAY > VERSION > BF-PASS
<Related error code>
E503-0041: Error in communication between the Finisher and Buffer Pass
E503-0042: Error in communication between the Finisher and Buffer Pass
Host Machine
UFDI
Communication
Finisher
Controller PCB
UFDI
Communication
Buffer Pass
Controller PCB
24
2. Technical Explanation
Sensor
Motor