Sharp MX-DE22 / MX-DE23 Service Manual ▷ View online
MX-DE22 MAINTENANCE 3 – 6
D. Desk 1 paper feed clutch
1)
Remove the drive unit.
2)
Disconnect the connector and then remove each part.
3)
Remove the drive frame.
4)
Remove the harness seat and each part and then remove
desk 1 paper feed clutch unit.
desk 1 paper feed clutch unit.
5)
Remove the E ring and then remove desk 1 paper feed clutch.
E. Desk 2 paper feed clutch
1)
Remove the drive unit.
2)
Disconnect the connector and then remove each part.
3)
Remove the drive frame.
4)
Remove desk 2 paper feed clutch unit.
5)
Remove the E ring and then remove desk 2 paper feed clutch.
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MX-DE22 MAINTENANCE 3 – 7
F. Transport clutch
1)
Remove the drive unit.
2)
Disconnect the connector and then remove each part.
3)
Remove the drive frame.
4)
Remove the harness seat and each part and then remove the
transport clutch unit.
transport clutch unit.
5)
Remove the E ring and then remove the transport clutch.
4. Miscellaneous
A. Control PWB
1)
Remove the rear cabinet.
2)
Remove the control PWB.
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MX-DE22 OPERATIONAL DESCRIPTIONS 4 – 1
MX-DE22
Service Manual
[4] OPERATIONAL DESCRIPTIONS
1. Electrical and mechanical relation diagram
PLS-PWB1
DPFM
PLS-PWB2
DCSPD2
DCSPD1
DSW_DSK
DLUD1
DPED1
DLUD2
DPED2
DPFD1
DTRC
DPUC1
DLUM1
DLUM2
DPUC2
DPFD2
DESK CONTROL
PWB
PWB
1
2
3
4
5
DCSS14
DCSS13
DCSS12
DCSS11
GND
DCSI1
4
5
5
1
2
2
6
3
DCSS14
DCSS12
DCSS13
DCSS13
GND
DCSS11
DCSS11
DCSI1
CN-J
CN-I
CN-H
CN-G
CN-E
CN-D
1
DLUM1
2
GND
/DPFM-CLK
DPFM-T
/DPFM-EN
GND
+24V
DPFM-T
/DPFM-EN
GND
+24V
DPFM-T
/DTRC
+24V
+24V_CL
/DPFM-CLK
/DPFM-EN
4
3
2
1
3
2
1
3
7
4
9
5
6
6
8
GND
1
11
8
4
3
2
GND
GND
7
9
5
+5V
DLUM1
GND
6
1
DLUM2
2
DPED2
3
+5V
DLUD2
3
2
2
GND
+5V
GND
3
2
+5V
DCSPD2
2
1
1
GND
+5V
DPFD2
1
GND
1
GND
1
2
2
+24V_CL
+24V_CL
10
DLUM2
DCSPD1
1
GND
2
+5V
3
+5V
2
GND
3
2
2
PHNR-3-H
DLUD1
DPFD1
2
1
GND
GND
+5V
DPED1
1
3
+5V
1
3
2
1
4
3
PHNR-12-H
4
2
1
3
6
8
5
7
6
5
5
8
7
7
10
11
11
9
12
12
11
11
9
10
BU12P-TR-P-H
7
5
1
6
3
6
8
5
7
8
BU09P-TR-P-H
2
4
PHNR-09-H
3
4
1
2
9
2
BU02P-TR-P-H
1
PHNR-02-H
2
1
2
BU02P-TR-P-H
PHNR-02-H
2
1
1
1
06KR-6H-P
2
1
1
6
5
4
5
4
7
3
+5V
DPED1
DPED1
+5V
GND
GND
DLUD1
GND
GND
+5V
+5V
GND
GND
GND
+5V
GND
DLUD2
+5V
+5V
DPED2
GND
DCSPD2
+5V
DCSPD2
+5V
GND
DPWD22
DPWD21
+5V
2
1
12
8
10
6
5
9
11
4
7
3
02CK-6H-P
02CK-6H-P
05CK-6H-P
02CK-6H-P
02CK-6H-P
03CK-6H-P
1
3
2
B9B-PH-K-S
B7B-PH-K-S
B12B-PH-K-S
B4B-PH-K-S
B3B-PH-K-S
B11B-PH-K-S
09CK-6H-P
9
PHNR-3-H
PHNR-3-H
1
2
+5V
GND
DSW_DSK
3
PHNR-3-H
PHNR-3-H
PHNR-3-H
PHNR-3-H
/DPUC1
/DPUC2
DCSPD1
DPFD1
DSW_DSK
DPFD2
2
BU02P-TR-P-H
1
PHNR-02-H
2
1
02CK-6H-P
12CK-6H-P
CN-B
4
3
2
1
3
2
1
6
5
5
B6B-PH-K-S
DCSS24
DCSS23
DCSS22
DCSS21
GND
DCSI2
4
5
5
1
2
2
6
3
DCSS24
DCSS22
DCSS23
DCSS23
GND
DCSS21
DCSS21
DCSI2
N.C.
06KR-6H-P
CN-C
4
3
2
1
3
2
1
6
7
5
B7B-PH-K-S
MX-DE22 OPERATIONAL DESCRIPTIONS 4 – 2
2. Paper empty detection
The paper empty detector (DPED, PPED2) checks whether there is paper in the tray when the tray is lifted and stopped at a position where it
can feed paper, as well as during paper feed operation.
can feed paper, as well as during paper feed operation.
3. Paper size detection
The size of paper contained in each tray is detected based on the
status of each of desk rear edge detectors (switches) 1 to 4 as well
as on the destination-specific settings.
status of each of desk rear edge detectors (switches) 1 to 4 as well
as on the destination-specific settings.
A/B sizes
✕: OFF
Inch-based sizes
✕: OFF
4. Paper level detection
The paper feeder detects the amount of paper remaining in the tray as one of four levels (100%, 67%, 33.3%, and zero), and displays the level
it has detected.
it has detected.
The paper feeder determines the remaining paper level based on how many times the paper level detector turns ON during the time between
the start of the lift-up of the paper feed tray and the activation (turning ON) of the upper limit detector.
the start of the lift-up of the paper feed tray and the activation (turning ON) of the upper limit detector.
State transition chart: How the paper level detector state changes according to the amount of paper actually remaining during tray
lift-up
lift-up
DCSS12
DCSS22
DCSS22
DCSS11
DCSS21
DCSS21
DCSS13
DCSS23
DCSS23
DCSS14
DCSS24
DCSS24
Rear edge detection switches
1
2
3
4
A3
✕
✕
A4
✕
A4R
✕
B4
✕
B5
✕
✕
B5R
✕
✕
✕
8.5 x 13
✕
✕
Rear edge detection switches
1
2
3
4
11 x 17
✕
✕
8.5 x 11
✕
8.5 x 14
✕
7.25 x 10.5R
✕
✕
✕
8.5 x 11R
✕
✕
Paper empty detector detects
when there is no paper remaining.
when there is no paper remaining.
1/3 range
Sensor: logical Low
Sensor: logical Low
2/3 range
Sensor: logical High
Sensor: logical High
3/3 range
Sensor: logical Low
Sensor: logical Low
When there is no paper
Paper level 1/3 position
Paper level 2/3 position
Paper level 3/3 position
Rotary panel
Paper empty detector
(DPED)
(DPED)
Actuator for detecting the
amount of remaining paper
amount of remaining paper
Paper level detector
(DCSPD)
(DCSPD)
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