↓
Step 25:
Paper feed motor (DFM) OFF
(Resist roller stops.)
↓
Step 26:
Transport motor (DTM) OFF
(Transport belt, paper exit roller stop)
Original stop
↓
*
B
Step 27:
Paper feed solenoid (DFSOL) OFF
(The weight plate and the stopper move up.)
↓
*
B: If there is no original on the tray, move
up the stopper and the weight plate.
Step 28:
Copier mirror base scanning is started.
↓
*
E
DSS
LOW (No original on the tray)
→
After
completion of mirror base scanning, go to
step 48.
↓
HIGH (There are some originals on the tray.)
↓
(Preliminary
paper feed)
↓
Step 29:
Paper feed motor (DFM) forward rotation
(Paper feed roller, semi-circular roller rotation)
The original feed is started.
↓
Step 30:
The original feed sensor (DFD) senses the
original lead edge. (DFD output HIGH)
↓
Step 31:
The original is stopped by the resist roller.
Paper feed motor (DFD) OFF
↓
Step 32:
Paper feed motor (DFM) reverse rotation
(Resist roller rotation)
The original lead edge is taken up by the
resist roller.
↓
Step 33:
The original width sensor (DWS) senses the
original.
(Output HIGH)
↓
Step 34:
The original timing sensor (DTD) senses the
original lead edge. (DTD output HIGH)
↓
Step 35:
Paper feed motor (DFM) OFF
(The original is stopped with its lead edge
taken up by the resist roller.)
↓
Step 36:
Copier mirror base scanning is stopped.
↓
(Paper exit)
↓
Step 37:
Transport motor (DTM) forward rotation
(Transport belt, paper exit roller rotation)
The original discharge is started.
↓
*
D
Step 38:
The previous original discharge
↓
Step 39:
Paper feed motor (DFM) reverse rotation
(Resist roller rotation)
The original is sent to the transport section.
↓
Step 40:
Paper exit sensor (DES) senses the original
rear edge. (DES output HIGH)
↓
Step 41:
Original width sensor (DWS) output HIGH
↓
Step
42:
Original timing sensor (DTD) senses the
original rear edge. (DTD output LOW)
↓
Step 43:
Paper feed motor (DFM) OFF
(Resist roller stop)
↓
Step
44:
Paper exit sensor (DES) senses the
discharged original rear edge. (DES output
LOW)
↓
*
D
Step 45:
Transport motor (DTM) OFF
(Transport belt, paper exit roller stop)
Original stop
↓
Step 46:
Paper feed solenoid (DFSOL) OFF
(The weight plate and the stopper move up.)
↓
*
B: When there is no original on the tray,
move up the stopper and the weight
plate.)
Step 47:
Copier mirror base scanning is started.
*
E
↓
DSS
HIGH (There are some originals on the tray.)
→
Go to step 29 (Preliminary paper feed).
↓
LOW (No original on the tray)
Step 48:
Transport motor (DTM) forward rotation
(Transport belt, paper exit roller rotation)
↓
*
D
Step 49:
Previous original discharge
↓
Step
50:
Paper exit sensor (DES) senses the
discharged original lead edge. (DES output
HIGH)
↓
Step 51:
Transport motor (DTM) rpm down
↓
Step
52:
Paper exit sensor (DES) senses the
discharged original rear edge. (DES output
LOW)
↓
Step 53:
Original discharge
↓
Step 54:
Transport motor (DTM) OFF
(Transport belt, paper exit roller stop)
↓
END
Note:
*
A: This operation is performed when there is an original on
the original table in advance. If there is no original on
the original table, this operation is not performed.
*
B: This operation is performed when there is no original on
the original table.
*
C: When the is an original on the original tray, the original
set sensor (DSD) output becomes LOW.
*
D: When the previous original remains in the paper exit
section, it is discharged.
– 8 –
Содержание SF-A18
Страница 42: ...CONTROL PWB SF A18 41 LED PWB SENSOR PWB ...
Страница 46: ...CONTROL PWB SF A57 LED PWB SENSOR PWB 45 ...
