Sharp MX-RB15 (serv.man11) Service Manual ▷ View online
2-44
CHAPTER 2 FINISHER UNIT BASIC OPERATION
4) The Finisher Lower Tray Lift Motor rotates, and the tray moves to suit the height of the stack.
The appropriate height in relation to the existing stack is checked by the height sensor (PS1).
Finisher Lower
Tray Lift Motor
Height sensor (PS1)
FTLM2
Figure 2-244
Claw
Finisher Shutter
Close Switch
(FSCSW)
Close Switch
(FSCSW)
Finisher Shutter
Open Sensor
(FSOS)
Open Sensor
(FSOS)
Shutter
Claw
One-way cam
Finisher Paper Transport Motor3
FPTM3
Figure 2-245
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CHAPTER 2 FINISHER UNIT BASIC OPERATION
Sequence Operations (shutter drive)
Move from Upper tray to Lower tray
Finisher Paper Transport
Motor3 (FPTM3)
Motor3 (FPTM3)
Shutter
closed
closed
Tray moved
Shutter
opened
opened
Finisher Upper Tray Lift
Motor (FTLM1)
Motor (FTLM1)
Finisher Lower Tray Lift
Motor (FTLM2)
Motor (FTLM2)
Finisher Shutter Close
Switch (FSCSW)
Switch (FSCSW)
Finisher Shutter Open
Sensor (FSOS)
Sensor (FSOS)
Height sensor (PS1)
Correct height detected
Motor CW rotation
Motor CCW rotation
Figure 2-246
2-46
CHAPTER 2 FINISHER UNIT BASIC OPERATION
J.
Buffer Path Operation
1.
Outline
This machine is provided with a buffer paper path for continuously receiving paper from the
host machine during stapling and job offset operation on the stapling tray. A maximum of three
copies (three originals or more in the staple mode) are wrapped around the buffer roller. During this
time, job offset and stapling are performed on the stapling tray.
copies (three originals or more in the staple mode) are wrapped around the buffer roller. During this
time, job offset and stapling are performed on the stapling tray.
The following shows operation on the buffer paper path.
1) When the first sheet arrives, the Finisher Buffer Solenoid 1 (FBS1) remains off. The first sheet
enters the buffer path.
OFF
FBS1
First sheet
Finisher Buffer Solenoid 1
Figure 2-247
2) When the leading edge of the sheet has moved past the Finisher Buffer paper enter detector
(FBPED), the Finisher Buffer Solenoid 2 (FBS2) turns on so as to cause the sheet to wrap
around the buffer roller.
around the buffer roller.
ON
FBS2
Finisher Buffer
Solenoid 2
Solenoid 2
Finisher Buffer
paper enter
detector (FBPED)
paper enter
detector (FBPED)
Figure 2-248
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CHAPTER 2 FINISHER UNIT BASIC OPERATION
3) When the leading edge of the sheet has moved past the Finisher Buffer paper pass detector
(FBPPD), the buffer roller stops and waits for the second sheet.
First sheet
Second sheet
Finisher Buffer paper pass
detector (FBPPD)
detector (FBPPD)
Figure 2-249
4) When the second sheet arrives and its leading edge reaches the Finisher paper enter detector
(FPED), the buffer roller starts to operate once again.
Second sheet
Finisher paper
enter detector
(FPED)
enter detector
(FPED)
First sheet
Figure 2-250
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