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Chapter 4
1. Moves to the start position
after black shading/white shading.
2. Original scan
3. Moves to the standby position
4.2.3 Basic Sequence after Depression of Start Key (ADF Mode, One Sheet of Original)
iR1020J / iR1024J / iR1020 / iR1024 / iR1024A / iR1024N / iR1024F / iR1024i / iR1024iF
Reader motor
(M401)
LED
CS HP sensor
(SR401)
4.3 Various Control
4.3.1 Enlargement/Reduction
4.3.1.1 Magnification Change in Vertical Scan Direction
iR1020J / iR1024J / iR1020 / iR1024 / iR1024A / iR1024N / iR1024F / iR1024i / iR1024iF
In the Book mode or when the ADF is used
In the vertical scan direction, the image is read at 100%. Magnification is changed by processing data on the image processor PCB.
4.3.1.2 Magnification Change in Horizontal Scan Direction
iR1020J / iR1024J / iR1020 / iR1024 / iR1024A / iR1024N / iR1024F / iR1024i / iR1024iF
In the horizontal scan direction, magnification is changed as follows depending on the selected magnification rate:
1) When magnification is reduced to 50-99%
Data is processed on the image processor PCB with the original scan speed held at 118 mm/sec.
2) When magnification is increased to 100-200%
The original scan speed (in the Book mode)/original feed speed (when the ADF is used) is changed within the range of 118 mm/sec to 59 mm/sec depending on the
selected magnification rate. Data is not processed on the image processor PCB.
4-4
CS HP
sensor
Original glass reading
start position
HP
Black shading/White shading
Start key
ON
STBY
SCRW
Shading
Stream reading
position
position
Stream reading
start position
1. Black shading/
White shading/
Original scan
Shading
Leading edge
position
of original
F-4-5
SCFW
Shading
Trailing edge
position
of original
F-4-6
CS HP
sensor
Original glass
reading start
position
HP
F-4-7
Trailing edge
of original
STBY
: Forward movement
: Backward movement
Shading
position
0013-1092
0013-1093
0013-1094
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