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* C Step 24:
Paper feed solenoid (DFSOL) OFF
(The weight plate and the stopper move up.)
* C: If there is no document on the
document tray, move up the stopper
and the weight plate.
↓
Step 25:
Document width sensor (DWS) output HIGH
↓
Step 26:
Document timing sensor (DTD) senses the
rear edge of the document.
(DTD output LOW)
Paper feed motor (DFM) OFF (Resist roller
stop)
Reverse solenoid (DRSOL) ON (The flapper
move up.)
↓
Step 27:
Reverse sensor (RDD) senses the lead edge
of the document. (RDD output HIGH)
↓
Step 28:
The lead edge of the document is moved
counterclockwise by the flapper.
↓
Step 29:
Transport motor (DTM) OFF
(Transport belt stop)
↓
Step 30:
Reverse motor (RDM) OFF
(Reverse roller, paper exit roller stop)
↓
Step 31:
Transport motor (DTM) OFF
(Transport belt rotation)
↓
Step 32:
Reverse motor (DRM) forward rotation
(Reverse roller, paper exit roller rotation)
The document is transported to the paper
feed section.
↓
Step 33:
Paper exit sensor (RDD) senses the rear
edge of the reverse document.
(RDD output LOW)
↓
Step 34:
Reverse motor (DRM) OFF
(Reverse roller, paper exit roller stop)
↓
Step 35:
Transport motor (DTM) OFF
(Transport belt stop)
Document stop
↓
Step 36:
Reverse solenoid (DRSOL) OFF
(The flapper moves down.)
↓
Step 37:
Copier mirror base scanning is started.
↓
* D
LOW (There is no document on the tray.) →
DSS output
After completion of mirror base scanning, go
to step 64. (Reverse rotation)
HIGH (There is an document on the tray)
↓
↓
(Preliminary
paper feed)
↓
Step 38:
Paper feed motor (DFM) forward rotation
(Paper
rotation)
The document feed is started.
↓
Step 39:
Document feed sensor (DFD) senses the
lead edge of the document.
(DFD output HIGH)
↓
Step 40:
Paper feed motor (DFM) OFF
The document is stopped by the resist roller.
↓
Step 41:
Paper feed motor (DFM) forward rotation
(Resist roller rotation)
The lead edge of the document is taken up
by the resist roller.
↓
Step 42:
Document width sensor (DWS) senses the
document width. (Output LOW)
↓
Step 43:
Document timing sensor (DTD) senses the
lead edge of the document. (DTD output
HIGH)
↓
Step 44:
Paper feed motor (DFM) OFF
(The document is stopped with its lead edge
taken up by the resist roller.)
↓
Step 45:
Copier mirror base scanning stop
↓
(Reverse
rotation)
↓
Step 46:
Reverse solenoid (DRSOL) ON
(The flapper moves up.)
↓
Step 47:
Transport motor (DTM) forward rotation
(Transport motor rotation)
Reverse motor (DRM) forward rotation
(Rreverse roller, paper exit roller rotation)
↓
Step 48:
Reverse sensor (RDD) senses the lead edge
of the document.
(RDD output HIGH)
↓
Step 49:
The lead edge of the document is moved
counterclockwise by the flapper.
↓
Step 50:
Transport motor (DTM) OFF
(Transport belt stop)
↓
Step 51:
Reverse motor (DRM) OFF
(Reverse roller, paper exit roller stop)
↓
Step 52:
Transport motor (DRM) reverse rotation
(Transport belt rotation)
↓
7 – 2
feed
roller,
semi-circular
roller
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