Service Mode - Canon STAPLER STACKER SS-72 Service Manual

CHAPTER 4
II. SERVICE MODE
A. Outline
When a paper jam or failure occurred in the stacker, the condition of the stacker can be checked
with the Service LED on the staple stacker driver PCB (LED1: Red light). The Service mode can
be changed according to the combination of the DIP switches (SW2) on the same PCB.
B. Service Mode
1. Service LED indications
Details of failures, errors, and other troubles of the stacker are indicated by the flashing fre-
quencies of the LED on the staple stacker driver PCB. Refer to Table 4-5-1 for details.
The LED flashes in the order of the header, group (flashing L times), pause, content 1 (flash-
ing M times), pause, content 2 (flashing N times) and pause, which constitute one cycle of flash-
ing indication.
LED flashing intervals are as shown below.
1) Header (ON for 2.0 seconds, OFF for 1.0 second)
2) Group (On for 0.3 seconds, OFF for 0.2 seconds)
3) Pause (OFF for 0.5 seconds)
4) Content 1 (ON for 0.3 seconds, OFF for 0.2 seconds)
5) Pause (OFF for 0.5 seconds)
6) Content 2 (ON for 0.3 seconds, OFF for 0.2 seconds)
7) Pause (OFF for 0.5 seconds)
When there is no failure, error or other troubles, the LED is kept ON during the warm up
period and flashes after the period (ON for 0.5 seconds, OFF for 0.3 seconds).
Example: Indication of entrance sensor stationary jam
1) Header (fixed)
(ON for 2.0 seconds, OFF for 1.0 second)
2) Group (flashing L times)
(ON for 0.3 seconds, OFF for 0.2 seconds) × 3: Jam
3) Pause (fixed)
(OFF for 0.5 seconds)
4) Content 1 (flashing M times)
(ON for 0.3 seconds, OFF for 0.2 seconds) × 1: Entrance sensor
5) Pause (fixed)
(OFF for 0.5 seconds)
6) Content 2 (flashing N times)
(ON for 0.3 seconds, OFF for 0.2 seconds) × 2: Stationary
7) Pause (fixed)
(OFF for 0.5 seconds)
ON
OFF
0 1
4 - 4
1 cycle
2 3
Figure 4-2-1
4 5 6 7 7.5sec.