Canon MF6550 Double feed from tray 1

[gideon]

Run one copy from tray 1, the paper comes half out and stop with paper jam light, the reason is that a second paper just start to be fed out from the tray, (it doesn't reach the left door but enough to activate the switch), setting of size and type are correct, any idea? Thanks.

[teckat]

Re: Canon MF6550 Double feed from tray 1

Run one copy from tray 1, the paper comes half out and stop with paper jam light, the reason is that a second paper just start to be fed out from the tray, (it doesn't reach the left door but enough to activate the switch), setting of size and type are correct, any idea? Thanks.

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Cassette Separation Roller

1) Remove the cassette.
2) Place the machine with the rear panel down. However, since the exhaust
duct projects about 16 mm from other area of the rear panel, insert stacks of paper or the like under the rear panel so that the machine stands stably.
3) Remove the feed roller.
4) Remove the claw , and pull out the separation roller assembly.
5) Remove the shaft from the shaft hole to remove the separation roller assembly .


When the cassette pickup roller rotates, a single sheet of paper is separated from the stack by the separation claws of the cassette, and is sent as far as the registration roller by way of the feed roller.
After the paper passes a registration sensor (SR11), the paper reaches the registration roller. At this time the registration roller is at rest, causing the leading edge of the paper to butt against it to form an arch.

The DC controller PCB turns on the registration clutch (CL1) at specific timing to transmit the drive of the main motor to the registration roller, thereby moving the paper ahead. The paper reaches the delivery tray after moving through the transfer, separation, and fixing/delivery assemblies.