Document Scanning - Sharp MX-2314N Service Manual

Signal name
SCOV RSPF cover open/close detector
SOCD RSPF open/close sensor
SPFM RSPF transport motor
SPPD2 Document transport sensor 2
SPPD3 Document transport sensor 3
SPPD4 Document transport sensor 4
SPRS Paper exit roller pressure control solenoid
(RSPF)
SRRC Registration roller clutch (RSPF)
STMPS Stamp solenoid
No. Name
1 Transport auxiliary roller (RSPF)
2 Registration roller (Drive) (RSPF)
3 Registration roller (Idle) (RSPF)
4 Transport roller 3 (Idle) (RSPF)
5 Transport roller 3 (Drive) (RSPF)
6 Transport roller 2 (Idle) (RSPF)
7 Transport roller 2 (Drive) (RSPF)
8 Paper exit roller (Idle) (RSPF)
9 Paper exit roller (Drive) (RSPF)
10 Document reverse gate
11 RSPF driver PWB
B. Operational descriptions
(1) Document size detection
Size detection on the document tray
The document width is detected with the RSPF document width
sensor (SPWS), and the document length is detected with the
RSPF document length sensors (SPLS1, SPLS2). The document
size is judged from the document width and the document length
according to the table below. When documents of different sizes
are mixed and set on the document tray, the largest document size
is detected.
Document size
AB series A5
B5
11" x 8.5"
A4
B5R
A4R
8.5" x 13"
B4
A3
11" x 17"
8.5" x 14"
8.5" x 13.4"
8.5" x 13.5"
Inch series 8.5" x 5.5"
11" x 8.5"
A4
11" x 8.5"R
8.5" x 13"
8.5" x 14"
A3
11" x 17"
8.5" x 13.4"
Name
Detects open/close of the RSPF cover.
Detects open/close of the RSPF unit.
Transports a document.
Detects paper pass.
Detects paper pass.
Detects paper exit and switchback.
Controls ON/OFF of the transport power of the paper exit roller. (Releases the paper exit roller
pressure when reversing paper.)
Controls the registration roller. (Controls the timing of document transport.)
Drives the finish stamp.
Reduces friction between a document and the paper guide to transport the document smoothly to the
registration roller.
Transports a document to the transport roller 2. / Controls the transport timing of the document and adjusts the
document scanning timing.
Apply a pressure to a document and the registration roller to provide the transport power of the transport roller to
the document.
Apply a pressure to a document and the transport roller to provide the transport power of the transport roller to
the document.
Transports a document transported from the document scanning section to the paper exit roller.
Apply a pressure to a document and the transport roller to provide the transport power of the transport roller to
the document.
Transports a document transported from the registration roller to the document scanning section.
Apply a pressure to a document and the paper exit roller to provide the transport power of the paper exit roller to
the document.
Discharges a document. Switchbacks the document and transports it to the registration roller when scanning the
back surface.
Reverses a document when scanning images on the back surface.
Drives the motor, the solenoid, and the clutch in the RSPF section.
Document length sensor
SPLS1 SPLS2
OFF OFF
OFF OFF
OFF OFF
OFF OFF
ON OFF
ON OFF
ON ON
ON ON
ON ON
ON ON
ON ON
ON ON
ON ON
OFF OFF
OFF OFF
OFF OFF
ON OFF
ON ON
ON ON
ON ON
ON ON
ON ON
MX-3114N OPERATIONAL DESCRIPTIONS 13 – 54
Function/Operation
Function/Operation
RSPF unit

(2) Document scanning

The document scanning mode is available in 400dpi and 600dpi.
Resolution
400dpi
600dpi
SPWS
SPLS1
SPLS2
Document transport speed
259mm/sec
173mm/sec