Sharp MX-RB15 (serv.man11) Service Manual ▷ View online
3-19
CHAPTER 3 SADDLE STITCH UNIT BASIC OPERATION
3.
B4 Paper Path (3 sheets)
Entry of First sheet
Entry of Second sheet
Entry of Third sheet
Top edge
FFS2
FFS3
OFF
OFF
FSPJD1
FSPJD2
FSPJD3
Finisher Saddle Paper
JAM Detector 2
Finisher Saddle Paper
JAM Detector 1
Finisher Saddle Paper
JAM Detector 3
Passage of paper
Non-passage of paper
Non-passage of paper
FSPJD1
FSPJD2
FSPJD3
FSPJD1
FSPJD2
FSPJD3
Figure 3-304
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CHAPTER 3 SADDLE STITCH UNIT BASIC OPERATION
4.
A4-R/LT-R Paper Path (3 sheets)
Entry of First sheet
Entry of Second sheet
Entry of Third sheet
Top edge
FFS2
FFS3
OFF
OFF
FSPJD1
FSPJD2
FSPJD3
Finisher Saddle Paper
JAM Detector 2
Finisher Saddle Paper
JAM Detector 1
Finisher Saddle Paper
JAM Detector 3
Passage of paper
Non-passage of paper
Non-passage of paper
FSPJD1
FSPJD2
FSPJD3
FSPJD1
FSPJD2
FSPJD3
Figure 3-305
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CHAPTER 3 SADDLE STITCH UNIT BASIC OPERATION
C.
Controlling the Movement of Sheets
When the leading edge of a sheet has moved past the inlet flapper, the intermediate feed roller
and the crescent roller start to move the sheet forward.
The intermediate feed roller is normally not in contact with the path bed. When the leading
edge of a sheet reaches the intermediate feed roller contact section, the Finisher Paper Transport
Solenoid (FPTS) causes the roller to come into contact with the path bed so as to move the sheet.
The contact is broken as soon as the leading edge of the sheet reaches the paper positioning plate.
This series of operations is executed each time a sheet arrives.
Solenoid (FPTS) causes the roller to come into contact with the path bed so as to move the sheet.
The contact is broken as soon as the leading edge of the sheet reaches the paper positioning plate.
This series of operations is executed each time a sheet arrives.
When the leading edge of the first sheet reaches the paper positioning plate, the Finisher Saddle
Paper Alignment Tray Paper Detector (FSATPD) turns ON. The arrival of the second and subse-
quent sheets will not be checked since the first sheet will still be over the sensor.
quent sheets will not be checked since the first sheet will still be over the sensor.
The crescent roller keeps rotating while sheets are being output, butting the leading edge of
each sheet against the paper positioning plate, and ultimately, keeping the leading edge of the stack
in order.
in order.
The Finisher Saddle Paper Alignment Motor (FSPAM) drives the alignment plates for each
sheet so as to put both left and right edges of the sheet in order.
1) The solenoid turns ON while paper is being moved so that the feed plate comes into contact.
FPTS
Finisher Paper
Transport Solenoid
ON
Finisher Paper
Transport Motor4
Intermediate feed roller
FPTM4
Figure 3-306
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CHAPTER 3 SADDLE STITCH UNIT BASIC OPERATION
2) The solenoid turn OFF when the paper butts against the paper positioning plate. The Finisher
Paper Transport Motor4 continues to rotate.
FPTS
OFF
FPTM4
Figure 3-307
3) The solenoid turns ON when the next sheet arrives, and the feed plate comes into contact.
FPTS
ON
FPTM4
Figure 3-308
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