Sharp MX-4100N Service Manual page 26

D. DSPF
(1) Internal structure
7 6
8 9
No. Name
1 Pickup roller
2 Paper feed roller
3 Separation roller
4 No. 1 resist roller (Drive)
5 No. 1 resist roller (Idle)
6 Transport roller 1 (Drive)
7 Transport roller 1 (Idle)
8 No. 2 resist roller (Drive)
9 No. 2 resist roller (Idle)
10 Transport roller 2 (Drive)
11 Transport roller 2 (Idle)
12 Transport roller 3 (Drive)
13 Transport roller 3 (Idle)
14 Paper exit roller (Drive)
15 Paper exit roller (Idle)
(2) Sensors, switches
SPPD2 SPPD2
SPPD3 SPPD3
SPPD4 SPPD4
Signal name
SPPD2 DSPF paper pass sensor 2
SPPD1 DSPF paper pass sensor 1
SCOV DSPF upper door open/close sensor
SPRDMD DSPF document random sensor
STUD DSPF paper feed tray upper limit sensor
SPED1 DSPF document upper limit sensor
SPWS DSPF document width sensor
SPLS1 DSPF document length detection short sensor
SPLS2 DSPF document length detection long sensor
SPPD3 DSPF paper pass sensor 3
SPPD4 DSPF paper pass sensor 4
SOCD DSPF open/close sensor
SLCOV DSPF lower door open/close sensor
SPPD5 DSPF paper pass sensor 5
SPOD DSPF paper exit sensor
SPED2 DSPF document empty sensor
STLD DSPF paper feed tray lower limit sensor
5 4 3 2
10 11 12
Picks up a document and feeds it to the paper feed roller.
Performs the paper feed operation of documents.
Separate a document to prevent against double-feed.
Performs resist of document transport.
Applied a pressure to paper and the resist roller, and provides transport power of the resist roller to paper.
Transports paper from No. 1 resist roller to No. 2 resist roller.
Applied a pressure to paper and the transport roller, and provides the transport power of the transport roller to paper.
Make synchronization between the lead edge of a document and the scan start position.
Applies a pressure to paper and the resist roller, and provides transport power of the resist roller to paper.
Transports paper from the platen roller to the transport roller 3.
Applies a pressure to paper and the transport roller and provides transport power of the transport roller to paper.
Transports paper from the transport roller 2 to the paper exit roller.
Applies a pressure to paper and the transport roller and provides transport power of the transport roller to paper.
Discharges paper.
Applies a pressure to paper and the paper exit roller and provides transport power of the paper exit roller to paper.
SCOV SCOV
SPPD1 SPPD1
SPRDMD STUD SPRDMD
SPOD SPOD
SOCD SOCD
SPPD5 SPPD5
SLCOV SLCOV
Name
MX-5001N EXTERNAL VIEW AND INTERNAL STRUCTURE 4 – 4
1
13 14 15
Function/ Operation
SPED1 SPED1
STUD
STLD STLD
SPWS SPWS
SPED2 SPED2
Function/Operation
Detects pass of the paper.
Detects pass of the paper.
Detects open/close of the upper door.
Detects the paper size in random paper feed.
Detects the upper limit of the paper feed tray.
Detects the upper limit of the DSPF document.
Detects the document width of the paper feed tray upper.
Detects the document length of the paper feed tray upper.
Detects the document length of the paper feed tray upper.
Detects pass of the paper.
Detects pass of the paper.
Detects open/close of the DSPF unit.
Detects open/close of the lower door.
Detects pass of the paper.
Detects paper exit of the document.
Detects document empty in the paper feed tray.
Detects the lower limit of the paper feed tray.
SPLS2 SPLS2
SPLS1 SPLS1
Transmission type
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Volume resistor
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Micro switch
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Type