Canon Shift Tray-E1 Service Manual page 6

2
Basic Construction
● Inputs to and Outputs from the Shift Tray Driver
PCB
Shift tray driver PCB
+5V
J203 J103
-1 -6
-5
-2
HP sensor
STHPR
-3 -4
PS101
(front)
J204 J103 +5V
-1 -3
HP sensor
-2 -2
STHPL
(rear)
-3 -1
PS102
+5V
J206 J104
J205
-1 -4 -1 -6
-2 -3 -2 -5
Tray paper
SPEXIST*
-3 -2 -3 -4
PS103
sensor
-1 -4
N.C. N.C.
+5V
J207 J104
-3
-1
Tray full sensor
-2 -2
SPCFULL*
(rear)
-3 -1
PS104
+5V
J208 J106
-3
-1
Tray full sensor -2 -2
SPSFULL*
-1
-3
(front) PS105
J105
-1
SDCM1
Shift motor
-2
M101 SDCM2
2
when tray is HP at front, '1'.
when tray is HP at rear, '1'.
when paper is present in tray, '0'.
when stack of sheets exceeds limit, '0'.
when stack of sheets exceeds limit, '0'.
tray moves to front when +24 V is applied to SDCM1
tray moves to rear when +24 V is applied to SDCM2
F-2-1 F-2-1
● Outline of the Electrical Circuitry
•
The circuit shown below is used to drive the shift motor according to the shift control signal
from the host machine and also to send various sensor signals associated with the shift
operation to the host machine.
Shift drive PCB
A24V
A5V
Shift motor
Motor drive
M
circuit
Sensor
2-2
J101 J201
To host machine
J102 J202
Motor drive
To host machine
signal
Sensor signal
F-2-2 F-2-2
2-2