Sharp SF-2040 - Page 28

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