DOWNLOAD Sharp AR-F12 (serv.man4) Service Manual ↓ Size: 557.91 KB | Pages: 44 in PDF or view online for FREE

Model
AR-F12 (serv.man4)
Pages
44
Size
557.91 KB
Type
PDF
Document
Service Manual
Brand
Device
Copying Equipment / Saddle stitch unit basic operation
File
ar-f12-sm4.pdf
Date
PREV: Sharp AR-F12 (serv.man3) Service Manual

Sharp AR-F12 (serv.man4) Service Manual ▷ View online

3-16
CHAPTER 3   SADDLE STITCH UNIT BASIC OPERATION
Saddle stitcher controller PCB (2/2)
Saddle stitcher controller PCB (1/2)
PI19S
PI18S
PI20S
PI15S
PI14S
Paper
pushing
plate
top
position
detection
signal
LUNGET
OP
Paper
pushing
plate
home
position
detection
signal
LUNGEHP
No.3
paper
detection
signal
3RDPA
No.2
paper
detection
signal
2NDPA
No.1
paper
detection
signal
1STPA
PI21S
Paper
positioning
plate
home
position
detection
signal
PAPPOS
Paper
positioning
plate
paper
detection
signal
PPOSPAR
Tray
paper
detection
signal
TR
YP
AR
Guide
plate
home
position
detection
signal
GIDHP
Crescent
roller
position
detection
signal
FDRLHP
Delivery
detection
signal
DEIV
Paper
folding
home
position
detection
signal
PAFLDHP
Vertical
path
paper
detection
signal
VPJM
Figure 3-302
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
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