Read Sharp AR-D17-19 (serv.man2) Service Manual online
AR-D17/D18/D19 MACHINE OPERATIONS 4 - 1
[4] MACHINE OPERATIONS
1. Cassette operation
• When a cassette is inserted, DLM1 (lift-up motor) rotates to lift up the cassette plate.
• If the tray is ready to feed paper (DLUD1 is ON and DPED is ON), after reception of the JOB start, paper is fed to DPPD1 by the desk motor (DM),
the transport clutch (DTRC), the paper feed clutch (DPFC1), the pickup solenoid (DPFS1), and the cassette paper feed unit.
A. Lift operation
When a cassette is inserted, the lift-up motor is turned on to lift the
rotating plate, and is stopped at the paper feed position. (Upper limit
sensor: ON position of DLUD)
rotating plate, and is stopped at the paper feed position. (Upper limit
sensor: ON position of DLUD)
The lift-up motor output is as shown below:
B. Paper feed operation
If the tray is in the paper feed ready position (upper limit sensor: at ON
position of DLUD) and there is some paper in the tray, paper feed can
be performed.
position of DLUD) and there is some paper in the tray, paper feed can
be performed.
Paper feed is performed by the transport motor (DM), the transport
clutch (DTRC), and paper feed clutch (DPFC), and the paper feed
solenoid (DPFS) at the following timing.
clutch (DTRC), and paper feed clutch (DPFC), and the paper feed
solenoid (DPFS) at the following timing.
CN-E (14pin)
14
15
/DLUD1
NC.
16
GND
9
10
/DLUD1
DCSPS1
11
12
+24V
DPED1
13
+5V
4
5
DCSS12
DLM1B
6
7
DCSS13
DML1B
8
DCSS14
1
2
/DPFS1
DCSS11
3
/DPFC1
14
GND
9
10
+5V
GND
11
12
+24V
GND
13
+24V
4
5
/DDPOD
/DTRC
6
7
/DMEN
/DMCK
8
/DMLOK
1
2
/DPPD1
/DPPD2
3
/DPPD3
16 14
/DLUD3
DPED3
12
DCSPS3
22 20
DLM2B
/DPFC3
18
/DPFS3
10 8
/DLUD3
DCSS34
6
4
DCSS32
DCSS24
2
DCSS22
15 13
/DLUD2
DPED2
11
DCSPS2
21 19
DLM2A
/DPFC2
17
/DPFS2
24
+24V
30 28
GND
GND
26
+24V
23
DLM3A
29 27
+5V
+5V
25
DLM3B
9
7
/DLUD2
DCSS33
5
3
DCSS31
DCSS23
1
DCSS21
CN-C (30pin)
AR-D18/D19
AR-D17
CN-D (16pin)
Desk control PWB
1
2
3
GND
/DPPD1
+5V
1
2
3
4
5
+24V
GND
/DMEN
/DMLOK
/DMCK
1
2
+24V
/DTRC
DLM1
PFD PWB
DPPD1
DPED1
DLUD1
DM
DTRC
DCSPS1
DCSS11
DCSS12
DCSS12
DCSS13
DCSS14
DCSS14
CNA (16pin)
(6pin)
Cassette plate
Lift-up unit
DPFS1
DPFC1
Cassette paper feed unit
DLUMA
(Motor output)
(Motor output)
(Upper limit sensor)
DLUMB
DLUD
12ms
2ms
8ms
2ms
12ms
JOB start reception
JOB end reception
Preliminary paper
feed request reception
feed request reception
Acceleration
DMM
Speed
reduction
reduction
Speed
reduction
reduction
(Transport motor output)
DTRC
(Transport clutch)
DPFC1
(Paper feed clutch)
DPFS1
(Paper feed solenoid)
DPPD1
(Transport sensor)
TRC
(Machine TRC sync signal)
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