Paper Feeder; Outline - Canon LBP-1000 Service Manual

VII. PAPER FEEDER
A. Outline
The operation sequences of the paper feeder are controlled by the engine controller of the print-
er. The engine controller drives the solenoid at the necessary timing via the paper feeder PCB.
Presence/absence of the paper is detected by the paper sensor.
The flow of input/output signals to/from the paper feeder PCB is as shown below.
J2132-3
To printer
J2131-3
To printer
PS2001
Paper sensor
SL2001
Pick-up solenoid
J2001-1
-1
-2
-2
-1
J2110-3 J2003-1
-1
-2
J2002-1
Figure 2-7-1
Paper feeder PCB
+24VA
-3
N.C.
-2
-4
/FDSNS
-5
N.C.
-6
FDSN
FD_DR
-3
"L" when the sensor detects paper.
/FDSNS
-2
+24VA
-2
/FDSN
"L" to start pick-up operation.
CHAPTER 2
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