MX-5001N DSPF SECTION C – 4
2. Operational descriptions
A. Document size detection
Size detection on the document tray
The document size is detected by the DSPF document width sen-
sor (SPWS), and the document length is detected by the DSPF
document length sensors (SPLS1, SPLS2). The document size is
judged from the document width and the document length as
shown in the table below.
When, however, documents of different sizes are mixed and set on
the document tray, the largest size is detected.
DSPF unit
B. Timing chart
To increase the document replacement speed, pre-feed of the second and the later documents is performed for documents of A4/Letter or
smaller sizes. Therefore, a clutch is provided for each transport roller to perform individual control.
Document size
Document length sensor
SPLS1 SPLS2
AB series A5 OFF OFF
B5 OFF OFF
11" x 8.5" OFF OFF
A4 OFF OFF
B5R ON OFF
A4R ON OFF
8.5" x 13" ON ON
B4 ON ON
A3 ON ON
11" x 17" ON ON
Inch series 8.5" x 5.5" OFF OFF
11" x 8.5" OFF OFF
A4 OFF OFF
11" x 8.5"R ON OFF
8.5" x 13" ON ON
8.5" x 14" ON ON
A3 ON ON
11" x 17" ON ON
SPFC
DSPF paper feed clutch
SPFC
DSPF paper feed clutch
SPFM
DSPF transport motor
SPPD4
DSPF paper pass sensor 4
STRC
DSPF transport roller clutch
SRRC
DSPFNo.2 resist roller clutch
SPOD
DSPF paper exit sensor
SPOM
DSPF paper exit motor
SPPD5
DSPF paper pass sensor 5
SPRDMD
DSPF random sensor 1
SPPD1
DSPF paper pass sensor 1
SPPD2
DSPF paper pass sensor 2
SPPD3
DSPF paper pass sensor 3
STRRC
DSPFNo.1 resist roller clutch
39.3mm
37.6mm
12.3mm
11.8mm
Transport speed 314mm/s Letter single-surface transport
Copy key ON
Timer from ON
Timer from ON
SPFFAN
DSPF cooling fan motor
SPUM
DSPF paper feed motor
OC scanner scanning
Built-in scanner scanning
ON simultaneouslywith print start of each motor
OFF at 500ms after SPCD OFF of the last paper
ON simultaneouslywith SPPD2_ON
OFF at 69.4ms after SPPD2_OFF
ON at 12.3mm - 10ms (29ms) after SPPD3 ON
(SIM adjustment)
OFF at 11.8mm (38ms) after SPPD3 OFF
Scanning start at 37.6mm (120ms)from
SPPD4 ON(SIM adjustment)
Scanning start at 39.3mm (125ms)from
SPPD5 ON(SIM adjustment)
Reduces the speed simultaneouslywith SPOD OFF,
reduces the speed up to 1855PPS in 15.7mm
Drives for 15mm and returns to 3709PPS in 15.7mm.
(Common to each paper size)
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