Cassette Pickup Operation - Canon iR2020 Series Service Manual

ration, fixing, and delivery assemblies.

7.3.2 Cassette Pickup Operation

iR2016J / iR2016 / iR2020 / / iR2016i / iR2020i
Rotation of the pickup roller is controlled by the pickup roller drive gear, which transfers the drive power of the main motor (M204) to the pickup roller drive shaft,
and the cassette pickup solenoid (SL202). When the main motor starts rotating, the interlocked relay gear also starts rotating. At this time, the pickup roller drive
gear is not driven because its toothless portion is positioned at the relay gear and therefore these gears are not engaged with each other.
1) The DC controller PCB issues a cassette pickup solenoid drive signal (CSTFD). When the solenoid is turned on, the control arm pushes the cam to rotate the
pickup roller drive gear slightly.
2) When the pickup roller drive gear is engaged with the pickup roller shaft gear, drive power is transferred to the pickup roller shaft gear and consequently the
pickup roller starts rotating.
3) When the feed roller drive gear is engaged with the feed roller shaft gear, drive power is transferred to the feed roller shaft gear and consequently the feed roller
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