Construction; Specifications, Control Mechanisms, And Functions - Canon imageRUNNER 2270 Service Manual

5.1 Construction

5.1.1 Specifications, Control Mechanisms, and Functions

The major specifications, control mechanisms, and functions of the machine's original
exposure system are as follows:
Item
Original exposure
Original scan
Read resolution
Gradation
Scanning speed (in
ADF mode)
Carriage position
detection
Magnification
Description
by LED array, indirect (LED + photoconducting body)
in book mode: scan by moving contact image sensor (CIS)
in ADF mode: by original stream reading with contact image sensor
(CIS) fixed in position
600 (main scanning) x 600 (sub scanning) dpi
256
45 ipm (single-sided, A4/LTR)
by contact image sensor (CIS), HP sensor (PS503)
25% to 400%
Main Scanning
Direction
Sub Scanning
Direction
in book mode:
T-5-1
by main controller PCB (image processing)
by changing carriage travel speed; by
processing images on reader controller PCB;
by processing images on main controller
PCB*1
Chapter 5
0006-5712
5-1