Sharp SF-2040 Service Manual page 28

A. Sensors and switches
Signal name
1
SIZESW Size switch
Front loading
2
F/LSW
open/close switch
3
DPE2 Empty sensor
4
DLPD3 Paper pass sensor 2
5
DLPD2 Paper pass sensor 1
6
DDOP Side open/close sensor
7
DLUD1 Level sensor 1
8
LMS1 Limit sensor 1
9
DPOD1 Resist sensor 1
F
DLPD1 Paper pass sensor 0
G
DLUD2 Level sensor 2
H
LMS2 Limit sensor 2
I
DPOD2 Resist sensor 2
Elevator motor 2 clock
J
E2CLK
sensor
Elevator motor 1 clock
K
E1CLK
sensor
B. Electromagnetic clutches
Signal name
L
P2CL Pick up roller clutch 2
M
P1CL Pick up roller clutch 1
N
BCL Separation clutch
O
RCL Resist clutch
C. Motors
Signal name
P
E1MOT Elevator motor 1
Q
E2MOT Elevator motor 2
R
HMOT Transport motor
S
— Control PWB
Name Type
Slide switch
Microswitch
Reflection type sensor
Reflection type sensor
Reflection type sensor
Photo interrupter
Photo interrupter
Photo interrupter
Photo interrupter
Reflection type sensor
Photo interrupter
Photo interrupter
Photo interrupter
Photo interrupter
Photo interrupter
Name Type
Electromagnetic clutch
lectromagnetic clutch
Electromagnetic clutch
Electromagnetic clutch
Name Type
DC motor
DC motor
DC brushless motor
—
Function/operation
Size (A4, B5, Letter) selection
Desk open/close detection
Cassette 2 original presence
detection
Turns to H level when the paper lead
edge is transported to the front of
pickup roller 1.
Turns to H level when the paper lead
edge is transported to the back of
pickup roller 1.
Side cover open/close detection
Cassette 1 paper height control
Prevention against excessive height
of cassette 1 paper
Paper pass detection
Turns to H level when the paper lead
edge is transported to the front of
separation roller.
Cassette 2 paper height control
Prevention against excessive height
of cassette 2 paper
Paper pass detection
Elevator motor 2 encoder clock
detection
Elevator motor 1 encoder clock
detection
Function/operation
Links/releases the transport motor
drive and the pick roller 2.
Links/releases the transport motor
drive and the pick roller 1.
Links/releases the transport motor
drive and the separation roller.
Links/releases the transport motor
drive and the resist roller.
Drives the lifting mechanism of cassette 1 paper bundle.
Drives the lifting mechanism of cassette 2 paper bundle.
Drives the whole mechanism of paper transport.
4 – 11
Contact/output
—
H level when open.
H level when paper is
detected.
H level when paper is
detected.
H level when paper is
detected.
L level when open.
H level when interrupted.
H level when interrupted.
Paper in: L level
H level when paper is
detected.
H level when interrupted.
H level when interrupted.
Paper in: L level
Pulse output
Pulse output
Contact/output
Links the drive when
ON.
Links the drive when
ON.
Links the drive when
ON.
Links the drive when
ON.
Function/operation
—