Canon iPF6100 Service Manual page 196

Chapter 4
6) While sliding the pulley[2] to the left, remove the carriage belt[1]. Tie the removed belt lightly on the unit.
7) Disconnect the two connectors[1] and four connectors[2] of the flexible cables on the main controller PCB.
The flexible cable connectors[2] are provided with a locking mechanism. When disconnecting or reconnecting
the flexible cable, be sure to release the lock. Otherwise, the flexible cable can damage, resulting in malfunction.
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[2]
[1]
F-4-42
F-4-43
[1]
[2]
[1]
[2]