Canon Finisher-T1, Service Manual

Page: 128 / 174

Chapter 4
4-6
If this is the case,
1) Turn over the stack of paper in the source (i.e.,
cassette). If doing so has caused the paper to curl more
than before, turn back over the stack. If the curling is
still appreciable and the machine fails to stack the
paper properly, try enabling heavy paper upward curl
mode.
b. Enabling Heavy Paper Upward Curl
1) Turn off the host machine.
2) Set the bits of SW104 on the finisher controller
PCB as follows:
F-4-8
3) Turn on the host machine.
- When this mode item is enabled, the machine
changes its operation it executes after the start of stack
edging, thus ensuring that the paper will be stacked
properly.
- When this mode item has been enabled, changes in
conditions (e.g., the use of paper with little curl or
delivery of paper with downward curl) can prevent the
machine from stacking the paper properly. It is
important, therefore, to be sure of the type of paper
used by the user before enabling this mode item.
4.3.1.5
Stack Delivery Mode
0009-2567
a. Outline
Depending on the selected paper handling mode*,
condition of paper, and environment, the trailing edge
of paper can rain against the stacking wall and prevent
the machine from stacking it correctly (also causing it
to prematurely detect an over-stack condition; see the
following figure).
*For instance, in stack delivery mode other than when
the stack consists of 6 or fewer sheets of small-size
paper.
F-4-9
If this is the case,
1) Turn over the stack of paper inside the source (e.g.,
cassette). If doing so has made upward curling worse
than before, turn back over the stack. If the upward
curling still causes the machine to fail to stack the
paper correctly, try enabling stack delivery mode:
b. Enabling Stack Delivery Mode
1) Turn off the host machine.
2) Set the bits of SW104 on the finisher controller
PCB as follows:
F-4-10
3) Turn on the host machine.
- When this mode item is enabled, the machine
changes its operation it executes after stack edging to
make sure that the paper will be stacked correctly.
- After this mode items has been enabled, changes in
conditions (e.g., the use of paper with little upward
curl or delivery of paper with downward curl) can
prevent the machine from correctly stacking paper. In
this light, it is very important to check the type of
paper the user most often uses before enabling this
mode item.
4.3.1.6
Offset Stack Mode
0009-4798
a. Outline
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8