Canon Inner Finisher-J1 Service Manual page 34

■ Staple-Free Staple Unit
When staple-free stapling is specified, the paper stack that is center-aligned by the processing tray is moved to the staple-free
stapling position by the front alignment plate and assist guide. The paper stack is clinched by the clinch arm.
The clinch arm's home position is detected by the clinch HP sensor (PS15).
After power ON, the finisher controller PCB drives the clinch motor (M9) to return the clinch arm to the home position. If the clinch
arm is at the home position to begin with, it remains there and waits.
Clinch errors are detected using clock pulses from the clinch motor drive detection sensor (PS13).
The staple-free staple unit is fixed in place in the rear of the finisher. Only a single stapling position is used, which is at the rear.
Stapling at four locations (upper left, upper right, lower right, lower left) is possible using the host machine's LUI through image
processing of the printed surface.
After staple-free stapling, the paper stack is shifted to the center by the front and rear alignment plates and then delivered.
Clinch Arm
• Number of sheets that can be clinched
Item
Stapling capacity
If the staple-free staple setting exceeds the stapling capacity (5 sheets) that can be bound, divided delivery is performed. If the
upper limit is exceeded, shift-sort mode is used for the second and subsequent copies.
Example: Divided delivery for 6 A4 (80g/m
5 sheets are delivered in a stack without stapling. The 6th sheet is delivered by itself.
<Related service mode>
• (Lv.1) SORTER>ADJUST>FR-STP-X
Adjustment of staple position for paper feed direction in the staple free stapling mode
• (Lv.1) SORTER>ADJUST>FR-STP-Y
Adjustment of staple position for front/rear direction in the staple free stapling mode
• (Lv.1) SORTER>ADJUST>FR-ST-PS
Adjust staple free pressure
• (Lv.1) SORTER>OPTION>FR-ST-PO
To set the staple position of staple free stapling
• (Lv.1) SORTER>OPTION>FR-ST-SW
To set the staple-free stapling in no staple cartridge
• (Lv.1) SORTER>FUNCTION>FR-ST-RP
To remove paper dust from the stapler, the stapler repeatedly executes the staple free stapling operation 30 times without
paper.
• (Lv.1) SORTER>FUNCTION>EMSG-CLR
To clear the message related to staple free stapling that is displayed when functions of Finisher are limited.
Clinch Motor (M9)
Upper Teeth
Lower Teeth
Cam
Clinch HP Sensor (PS15)
Specifications
2
52 to 64 g/m : 5 sheets or less
More than 64 to 81.4 g/m
More than 81.4 to 105 g/m
2
) sheets
2
: 4 sheets or less
2
: 3 sheets
28
2. Technical Explanation
Remarks
• Stapling a mix of same width is possi-
ble.
• Stapling a mix of different widths is not
possible.