Inputs To And Outputs From The Paper Feeder Controller - Canon LBP-2000 Service Manual

CHAPTER 2
B. Inputs to and Outputs from the Paper Feeder Controller
Feed
paper sensor
PI201
Cassette
paper sensor
PI202
Paper size
SW201
detecting switch
Paper feeder
CL201
pickup clutch
Paper feeder
M201
pickup motor
To printer,
paper feeder
To paper feeder
2 - 66
J155
-3
-1
-2
J154
-3
-1
-2
J153
-5
-4
-2
-1
-3
J901
J901A-3
J901A-4/-5
J901A-6/-7
J901B-1
J901B-2
J901B-3
J901B-6
J901B-5
J901B-4
J1507
J1507A-5
J1507A-4/-3
J1507A-2/-1
J1507B-6
J1507B-5
J1507B-4
J1507B-1
J1507B-2
J1507B-3
Figure 2-7-2
Paper feeder controller PCB
+5V
J2
-1
When paper is present, 'H'.
-3 FSEN
-2
+5V
J2
-4
-6
/CSPSEN when paper is present, 'L'.
-5
J1
-1
PSSN4
-2
PSSN3
-4
See V-C 'Detecting Paper
PSSN2
-5
Size' in Chapter 2.
PSSN1
-3
J3 +24V
-2
When 'L', CL201 goes ON.
-1
/PICKUPCL
J6
-1
A
Paper feeder pickup
-2
A*
motor drive signal
-3
B
-4
B*
J5
+5V
+24V
-5
-4/-3
-2/-1
-11
Serial signal (output)
/RXDOU
-10
/STB Strobe signal
-9
Clock signal
SCLK
-7
Serial signal (input)
/TXDOU
-6
Option select signal
/STERMU
-8
J4 +5V
+24V
-7
-8/-9
-10/-11
-1
Serial signal (output)
/RXDOU
-2
/Strobe signal
/STB
-3
Clock signal
SCLK
-6
/TXDOU Serial signal (input)
-5
Option select signal
/STERMU
-4