Canon Perfect Binder A1 Troubleshooting Manual page 212

2-32) Remove the tray guide assembly [2] from link [1].
2-33) Remove 1 screw [1] to remove fixing bracket [2]. Then shift the tray guide assembly [3] in the allow direction to remove it.
[Caution] When the fixing bracket is removed, be careful not to drop the torsion spring [4] inside of machine.
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