CHAPTER 3 IMAGE READING/PROCESSING SYSTEM
COPYRIGHT
©
2002 CANON INC. 2000 CANON iR1600/iR2000 REV.1 JAN. 2002
3-6
3.3 Detecting the Size of Originals
The machine uses combinations of states of original size sensors to detect the size of an
original with reference to the following table:
• Unchanged : The machine reads the output levels of the sensors at intervals of 0.125
sec after the copyboard cover open/closed sensor goes ON, and there is
no change in the output level (detecting an original).
• Changed : The machine reads the output levels of the sensors at intervals of 0.125
sec after the copyboard cover open/closed sensor goes ON, and there is
change in the output level (not detecting an original).
T03-303-01
A3
A4
A4R
B5R
None
B4
B5
A/B-Configuration
Unchanged Unchanged
Unchanged Unchanged
Unchanged
Unchanged
Unchanged Unchanged
Unchanged Unchanged Unchanged
Unchanged Unchanged
Changed
Changed
Changed
Changed Changed
Changed
ChangedChanged
ChangedChanged Changed
ChangedChangedChanged Changed
PS114 PS115 PS116 PS117
Original size sensor
Original
size
Original size sensor
None
11"X17"
LTR-R
LGL
LTR
Original
size
Unchanged
Unchanged
Unchanged
Unchanged
Unchanged
Unchanged
Unchanged
Changed
Changed
Changed
Changed
Changed
Changed
Changed Changed
PS115 PS116 PS117
Inch-configuration
Original
size
Original size sensor
A3
A4
A4R
None
Unchanged
Unchanged
Changed
Changed
Unchanged
Changed
Changed
Unchanged
PS115 PS116
A-configuration