MX-RB18. Service Manual - Sharp Copying Equipment Service Manual (repair manual). Page 7

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MX-RB18  OPERATIONAL DESCRIPTIONS  4 - 1
[4]  OPERATIONAL DESCRIPTIONS
1.  Electrical and mechanism relation diagram
Signal name
Name
Function/Operation
DCFAN100
Upper cooling fan
Cools the upper area of the paper transport section.
DCFAN101
Lower cooling fan
Cools the lower area of the paper transport section.
DCFAN103
Transport motor cooling fan
Cools the paper transport motor.
DCM100
Paper transport motor
Drives the decurler roller.
DCS100
Paper pass sensor
Detects transport of paper.
DCSW100
Front cover open/close detection switch
Detects open/close of the front cover.
No.
Name
Function/Operation
1
Transport roller 1 (Idle)
Apply a pressure to paper and the transport roller, providing a transport power to the 
transport roller.
2
Transport roller 1 (Drive)
Transports paper to the upper decurler roller.
3
Upper decurler roller
Sponge roller which corrects upward curl of paper.
4
Upper decurler shaft roller
Metal roller which corrects upward curl of paper.
5
Upper backup roller
Roller which prevents warp of the upper decurler shaft roller.
6
Lower decurler roller
Sponge roller which corrects downward curl of paper.
7
Lower decurler shaft roller
Metal roller which corrects downward curl of paper.
8
Lower backup roller
Roller which prevents warp of the lower decurler shaft roller.
9
Transport roller 2 (Idle)
Apply a pressure to paper and the transport roller, providing a transport power to the 
transport roller.
10
Transport roller 2 (Drive)
Transports paper sent from the lower decurler roller.
5V
DEC_TRANS_PASS_SEN
GND
DEC_TOP_FAN_LOCK
GND
DEC_TOP_FAN_ON/OFF
DEC_BTM_FAN_LOCK
GND
DEC_BTM_FAN_ON/OFF
DEC_MOT_FAN_LOCK
GND
DEC_MOT_FAN_ON/OFF
DEC_TRANCE_MOT_*B
24V
DEC_TRANCE_MOT_B
DEC_TRANCE_MOT_*A
24V
DEC_TRANCE_MOT_A
24V_IN
24V_OUT
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
4
5
6
1
2
3
2
1
1
2
3
3
2
1
12
11
10
9
8
7
3
2
1
7
6
5
3
2
1
1
3
J1 CT6
5V
DEC_TRANS_PASS_SEN
GND
J3 CT12
DEC_TOP_FAN_LOCK
GND
DEC_TOP_FAN_ON/OFF
DEC_BTM_FAN_LOCK
GND
DEC_BTM_FAN_ON/OFF
DEC_MOT_FAN_LOCK
GND
DEC_MOT_FAN_ON/OFF
J5 XH7
DEC_TRANCE_MOT_*A
24V
DEC_TRANCE_MOT_B
DEC_TRANCE_MOT_*B
24V
DEC_TRANCE_MOT_A
J6 VH
24V_IN
24V_OUT
CONTROL PWB
1
DCS100
DCM100
DCFAN100
DCFAN103
DCFAN101
DCSW100
9
7
8
3
2
5
4
10
6
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