MX-4100N, MX-4101N, MX-5000N, MX-5001N (serv.man12). Service Manual-Section 4-External View And Internal Structure - Sharp Copying Equipment Service Manual (repair manual). Page 4

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MX-4101N  EXTERNAL VIEW AND INTERNAL STRUCTURE  4 – 4
D. DSPF
(1) Internal structure
(2) Sensors, switches
No.
Name
Function/ Operation
1
Pickup roller
Picks up a document and feeds it to the paper feed roller.
2
Paper feed roller
Performs the paper feed operation of documents.
3
Separation roller
Separate a document to prevent against double-feed.
4
No. 1 resist roller (Drive)
Performs resist of document transport.
5
No. 1 resist roller (Idle)
Applied a pressure to paper and the resist roller, and provides transport power of the resist roller to paper.
6
Transport roller 1 (Drive)
Transports paper from No. 1 resist roller to No. 2 resist roller.
7
Transport roller 1 (Idle)
Applied a pressure to paper and the transport roller, and provides the transport power of the transport roller to paper.
8
No. 2 resist roller (Drive)
Make synchronization between the lead edge of a document and the scan start position.
9
No. 2 resist roller (Idle)
Applies a pressure to paper and the resist roller, and provides transport power of the resist roller to paper.
10
Transport roller 2 (Drive)
Transports paper from the platen roller to the transport roller 3.
11
Transport roller 2 (Idle)
Applies a pressure to paper and the transport roller and provides transport power of the transport roller to paper.
12
Transport roller 3 (Drive)
Transports paper from the transport roller 2 to the paper exit roller.
13
Transport roller 3 (Idle)
Applies a pressure to paper and the transport roller and provides transport power of the transport roller to paper.
14
Paper exit roller (Drive)
Discharges paper.
15
Paper exit roller (Idle)
Applies a pressure to paper and the paper exit roller and provides transport power of the paper exit roller to paper.
Signal name
Name
Function/Operation
Type
SPPD2
DSPF paper pass sensor 2
Detects pass of the paper.
Transmission type
SPPD1
DSPF paper pass sensor 1
Detects pass of the paper.
Transmission type
SCOV
DSPF upper door open/close sensor
Detects open/close of the upper door.
Transmission type
SPRDMD
DSPF document random sensor
Detects the paper size in random paper feed.
Transmission type
STUD
DSPF paper feed tray upper limit sensor
Detects the upper limit of the paper feed tray.
Transmission type
SPED1
DSPF document upper limit sensor
Detects the upper limit of the DSPF document.
Transmission type
SPWS
DSPF document width sensor
Detects the document width of the paper feed tray upper.
Volume resistor
SPLS1
DSPF document length detection short sensor
Detects the document length of the paper feed tray upper.
Transmission type
SPLS2
DSPF document length detection long sensor
Detects the document length of the paper feed tray upper.
Transmission type
SPPD3
DSPF paper pass sensor 3
Detects pass of the paper.
Transmission type
SPPD4
DSPF paper pass sensor 4
Detects pass of the paper.
Transmission type
SOCD
DSPF open/close sensor
Detects open/close of the DSPF unit.
Transmission type
SLCOV
DSPF lower door open/close sensor
Detects open/close of the lower door.
Micro switch
SPPD5
DSPF paper pass sensor 5
Detects pass of the paper.
Transmission type
SPOD
DSPF paper exit sensor
Detects paper exit of the document.
Transmission type
SPED2
DSPF document empty sensor
Detects document empty in the paper feed tray.
Transmission type
STLD
DSPF paper feed tray lower limit sensor
Detects the lower limit of the paper feed tray.
Transmission type
3
9
1
2
5
7
4
6
10
12
14
8
11
13
15
SPPD2
SPPD2
SPPD1
SPPD1
SCOV
SCOV
SPRDMD
SPRDMD STUD
STUD
SPPD3
SPPD3
SPPD4
SPPD4
SOCD
SOCD
SLCOV
SLCOV
SPPD5
SPPD5
SPOD
SPOD
SPED2
SPED2
STLD
STLD
SPED1
SPED1
SPWS
SPWS
SPLS1
SPLS1
SPLS2
SPLS2
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