Canon Perfect Binder A1 Troubleshooting Manual page 23

Refer to the following table for details.
Location Condition
[C] Spine glue is pushed and spread over in
a T (L) letter shape
[D] An excessive amount of glue
c) Slanted spine glue or imbalance of side glue
If the stack of sheets (Signature) is curled, the stack becomes slightly sagged when stack registration is adjusted as shown in
the picture below.
In the figure below, [1] indicates the stack registration guide, [2], the main gripper, [3], the mini gripper and [4], the stack of sheets
(Signature).
Due to an excessive amount of glue, the glue spreads over the sides (or a side) of the folded
spine cover.
Due to an excessive amount of glue, the height of the side glue reaches 7mm or more.
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Description