Measurement And Adjustment; Mechanical Adjustment - Canon STAPLER STACKER SS-72 Service Manual

CHAPTER 4
VII. MEASUREMENT AND ADJUSTMENT
A. Mechanical Adjustment
• No mechanical adjustment required.
B. Electrical Adjustment
1. Adjusting the distance sensor
This adjustment is required if the staple stacker driver PCB or the distance sensor is replaced
or if the back-up power supply failure is indicated with the LED (see Page 4-7).
As the distance sensor is adjusted at the factory, its adjustment at the time of installation is
not necessary. However, the distance sensor must be initialized when the staple stacker driver
PCB or the distance sensor is replaced in the field. It also needs to be initialized when a back-
up power supply failure is indicated by the LED on the staple stacker driver PCB. The proce-
dures are as indicated below.
1) Turn OFF the printer power switch.
2) Set the DIP switches (SW2) on the staple stacker driver PCB as follows.
1-OFF, 2-OFF, 3-OFF, 4-ON
Normal
1
ON
OFF
3) Load one sheet of blank paper in each tray.
4) Turn ON the printer power switch to start distance sensor initialization as follows:
1. Runs the feed motor and delivery motor and closes the swing guide and shutter.
2. Runs the tray up/down motor and brings the tray unit to its home position.
3. Runs the feed motor and opens the shutter.
4. Runs the tray up/down motor and lifts the tray unit to the position about 82mm away from
the home position (distance adjustment value input position).
5. Reads distance date through the distance sensor.
6. Runs the feed motor and closes the shutter.
7. Runs the tray up/down motor and lowers the tray unit to its home position (Paper level
detection position of the tray 1)
8. Reads distance data of the tray 1 through the distance sensor (Learn the tray 1 paper detec-
tion level)
9. Runs the feed motor and closes the shutter.
10. Runs the tray up/down motor and lifts the tray unit to the position about 177mm away from
the home position (Paper level detection position of the tray 2).
11. Reads distance data of the tray 2 through the distance sensor (Learn the tray 2 paper detec-
tion level)
12. Runs the feed motor and closes the shutter.
13. Runs the tray up/down motor and lifts the tray unit to the position about 346mm away from
the home position (Paper level detection position of the tray 3).
14. Reads distance data of the tray 3 through the distance sensor (Learn the tray 3 paper detec-
tion level)
15. Runs the feed motor and closes the shutter.
16. Runs the tray up/down motor and lowers the tray unit to its home position.
4 - 18
Distance sensor adjustment
4
ON
OFF
Figure 4-7-1
1 4