Construction; Specifications, Controls, And Functions <Ir7105/7095 - Canon imageRUNNER 7095 Service Manual

5.1 Construction

5.1.1 Specifications, Controls, and Functions <iR7105/7095>
The specifications, controls, and functions of the machine's original exposure system are as follows:
Item
Scanning lamp
Original scanning
Original reading
resolution
Halftone
Scanning position
detection
lens
Magnification
Scanner drive control No. 1/2 mirror base: control by pulse motor
Scanning lamp
control
Original size
detection
T-5-1
xenon lamp
book mode: by moving the scanner
ADF mode (one-side reading): by stream reading (2 fixed points of small-size
reading and large-size reading)
ADF mode (double-sided reading): by moving the scanner (Fixed reading)
600 x 600 dpi (main scanning x sub scanning)
256 gradations
by scanner HP sensor
single-focal point, fixed type
[1] in platen mode, Fixed reading: 25% to 400%
main scanning direction: image processing by controller block
sub scanning direction: scanning speed variation (No. 1 mirror base; 100% or
higher)
in combination with image processing by reader block (50% or higher and
lower than 100%)
in combination with image processing in reader block and controller block
(lower than 50%)
[2] ADF mode: 25% to 200%
main scanning direction: image processing in controller block
sub scanning direction: original movement speed variation (89% or higher)
in combination with image processing by reader block (50% or higher and
lower than 89%)
in combination with image processing in reader block and controller block
(lower than 50%)
[1]activation control by pulse motor
[2]error detection control
[1]book mode
sub scanning direction: by reflection type sensor
main scanning direction: by CCD
[2] ADF mode
main scanning direction: by slide guide in ADF
sub scanning direction: by photosensor in ADF
Description
Chapter 5
0010-7881
5-1