Canon PD-82, Service Manual

Page: 23 / 88

B. Paper Pick-up and Feeding
When the paper deck driver receives a paper pick-up command from the option controller, the
driver runs the feed motor (SPM2) and pick-up motor (SPM3). SPM2 rotates feed roller 2 and
registration roller, and SPM3 rotates the pick-up roller, feed roller 1 and separation roller. The
paper deck driver turns ON the pick-up solenoid (SL1). This rotates the pick-up cam and
operates the pick-up arm. The rotating pick-up roller lowers to the print paper surface and
picks up the paper. The separation roller removes any excessive sheets of paper and only one
sheet of paper is fed to the paper feed unit with feed roller 1.
The print paper passes through the registration paper sensor (PS1) and reaches the
registration roller. Since the registration roller is not turning at this time, the print paper stops
and its leading edge is looped to correct skews. When the registration clutch (CL1) turns ON,
SPM2 power is transmitted to the registration roller and it rotates. The print paper is fed to the
printer.
Figure 2-2-3
2 - 7
CHAPTER 2
Pick-up arm
Pick-up solenoid
Separation roller
Feed roller 1
Pick-up roller
Pick-up cam