Detailed Section Descriptions; Scanner; Mechanisms; Document Detection - Ricoh FAX4700L Service Manual

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December 21st, 1995

2. DETAILED SECTION DESCRIPTIONS

2.1. SCANNER

2.1.1. Mechanisms

1. Document Detection

[B]
The machine detects when a document is placed in the ADF and the docu-
ment's width by monitoring the document sensor [A], the B4 width sensor [B],
and the A3 width sensor [C].
These sensors detect document width as shown in the table below.
Document
Size
A4/
Letter
B4
A3/
Double Letter
The fold-down extension [D] helps to support longer documents.
[A]
H515D002.wmf
Document
B4-width
Sensor
Sensor
On
Off
On
On
On
On
DETAILED SECTION DESCRIPTIONS
[C]
[D]
A3-width
Sensor
Off
Off
On
2-1
H516D500.wmf
Actual Document Width
Range
Less than 235 mm
(Less than 9.25")
235 mm to 268 mm
(9.25" to 10.55")
More than 268 mm
(More than 10.55")
SCANNER

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