Manual Feed - Canon LBP-2000 Service Manual

CHAPTER 2
• Multifeeder Tray Pickup Operation
Multifeeder
pickup clutch
• Basic Sequence of Operation for Multifeeder Tray Pickup
Main motor
(M101)
Multifeeder pickup
solenoid (SL101)
Registration paper
sensor (PI101)
Registration
clutch (CL102)
2 . Retry control
The Printer executes pickup retry control if paper fails to reach the registration paper sensor
(PI101) in about 0.88 sec after the multifeeder pickup solenoid (SL101) goes on because of wear on
the roller or a pickup fault.
The multifeeder pickup solenoid (SL101) goes on pick up retry control for a second time.
The retry sequence is as follows:
/PRNT signal
Main motor
(M101)
Multifeeder pickup
solenoid (SL101)
Registration paper
sensor (PI101)
2 - 52

Manual feed

separation pad
Multifeeder
M101
pickup solenoid
Figure 2-5-6
/PRNT signal IN
STBY
0.15
Figure 2-5-7
Pickup retry
IN
operation 1 started
STBY Pickup control
0.88 (approx.) 0.88 (approx.)
Figure 2-5-8
Manual feed
pickup roller
Cam
(unit: sec)
INTR PRINT
0.18
0.11 (approx.)
Pickup retry
operation 2 started
(unit: sec)
Hereafter, same as
0.88 (approx.)
normal pickup sequence.