Canon LBP-2000 Service Manual page 48

B . Inputs to and Outputs from the DC Controller
1 . Inputs to the DC controller
J909
-3
Registration
-1
paper sensor
-2
PI101
J910
-3
Multifeeder
-1
paper sensor
-2
PI102
J914
-3
Delivery sensor
-1
-2
PI103
Paper size
SW105
detecting switch
Main
thermistor
TH101
Sub thermistor
TH101
Right door
switch
SW3
Left door
switch
SW4
J916
-1 -3
-1
-3
-2
-2
J902
-5
-4
-2
-1
-3
J913
-5
-2
-4
-3
-3
-4
-2
-5
J912-2
J912-1
J912-2
-1
Figure 2-2-2
DC controller PCB
+5V
J106
-1
When paper is present, 'L'.
-3
/RGSNS
-2
+5V
J108
-1
-3 /MPSNSI When paper is present, 'L'.
-2
+5V
J103
-7
When paper is present, 'L'.
-9
/POSISNS
-8
Cassette
paper sensor
PI104
When paper is present, 'L'.
J110
-1
PSSN4
-2
PSSN3
-4
See V-B 'Detecting Paper
PSSN2
-5
PSSN1 Size' in Chapter 2.
-3
J103
-2
TH1
When the temperature of
the fixing roller increases,
-3
the voltage decreases.
J103
(analog signal)
-4
TH2
When the temperature of
the fixing roller increases,
-5
the voltage decreases.
(analog signal)
J107
-1
DOR24VIN
-2
When 24 V is supplied, 'H'.
Test print switch
SW101
When 'L', engine test
printing is initiated.
CHAPTER 2
2 - 9