DOWNLOAD Sharp AR-F12 (serv.man6) Service Manual ↓ Size: 9.34 MB | Pages: 127 in PDF or view online for FREE

Model
AR-F12 (serv.man6)
Pages
127
Size
9.34 MB
Type
PDF
Document
Service Manual
Brand
Device
Copying Equipment / Inserter unit (option) basic operation
File
ar-f12-sm6.pdf
Date
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Sharp AR-F12 (serv.man6) Service Manual ▷ View online

3-17
CHAPTER 3   SADDLE STITCH UNIT BASIC OPERATION
B.
Controlling the Inlet Flappers
1.
Outline
The two flappers mounted at the paper inlet are operated to configure the feed path according to
the size of paper. The flappers are used to enable the following:
1. To detect the passage of the trailing edge of the paper being moved by an appropriate sensor.
2. To prevent the following sheet from butting against the top of the existing stack,
Table 3-301 shows the relationship between sensors and paper sizes.
Sensor
A3/LD
B4
A4-R/LT-R
No.1 paper sensor (PI18S)
Used
Used
Used
No.2 paper sensor (PI19S)
Not used
Used
Used
No.3 paper sensor (PI20S)
Not used
Not used
Used
Table 3-301
Each flapper is driven by its own solenoid.
Table 3-302 shows the relationship between solenoids and paper sizes.
Solenoid
A3/LD
B4
A4-R/LT-R
No.1 paper deflecting
OFF
ON
ON
solenoid (SL1S)
No.2 paper deflecting
OFF
OFF
ON
solenoid (SL2S)
Table 3-302
3-18
CHAPTER 3   SADDLE STITCH UNIT BASIC OPERATION
2.
A3/LD Paper Path (3 sheets)
SL1S
SL2S
OFF
OFF
No.1 paper sensor
PI18S
PI19S
PI20S
No.2 paper sensor
No.3 paper sensor
No.1 paper deflecting
solenoid
No.2 paper deflecting
solenoid
Passage of paper
Non-passage of paper
Non-passage of paper
Entry of First sheet
PI18S
PI19S
PI20S
Top edge
Entry of Second sheet
PI18S
PI19S
PI20S
Entry of Third sheet
Figure 3-303
3-19
CHAPTER 3   SADDLE STITCH UNIT BASIC OPERATION
3.
B4 Paper Path (3 sheets)
SL1S
SL2S
ON
OFF
No.1 paper sensor
PI18S
PI19S
PI20S
No.2 paper sensor
No.3 paper sensor
Passage of paper
Passage of paper
Non-passage of paper
Entry of First sheet
PI18S
PI19S
PI20S
Entry of Second sheet
PI18S
PI19S
PI20S
Entry of Third sheet
Top edge
Figure 3-304
3-20
CHAPTER 3   SADDLE STITCH UNIT BASIC OPERATION
4.
A4-R/LT-R Paper Path (3 sheets)
SL1S
SL2S
ON
ON
No.1 paper sensor
PI18S
PI19S
PI20S
No.2 paper sensor
No.3 paper sensor
Passage of paper
Passage of paper
Passage of paper
Entry of First sheet
PI18S
PI19S
PI20S
Entry of Second sheet
PI18S
PI19S
PI20S
Entry of Third sheet
Top edge
Figure 3-305
Page of 127
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