Canon iR7086, Service Manual

Page: 187 / 735

Chapter 5
5-1
5.1 Construction
5.1.1 Specifications, Controls, and Functions
0010-7881
iR7105 / iR7095
The specifications, controls, and functions of the machine's original exposure system are as follows:
T-5-1
Item Description
Scanning lamp xenon lamp
Original scanning 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)
Original reading resolution 600 x 600 dpi (main scanning x sub scanning)
Halftone 256 gradations
Scanning position detection by scanner HP sensor
lens single-focal point, fixed type
Magnification [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%)
Scanner drive control No. 1/2 mirror base: control by pulse motor
Scanning lamp control [1]activation control by pulse motor
[2]error detection control