Canon IR2200, IR3300, IR2800 manual F02-404-02, T02-404-02 14 R

CHAPTER 2 ORIGINAL EXPOSURE SYSTEM

25˚

[4]The copyboard cover is closed. When the copyboard cover is brought down to 25°, the Copyboard cover sensor detects the “closed” state, and original size detection starts.

For main scanning direction, the xenon lamp is turned on, and the CCD checks for reflected light (4 points).

For sub scanning direction, the original sensor starts detection.

[5]The copyboard cover is fully closed. The changes in the output level of each sensor are monitored until the copyboard cover is fully closed. The absence of a change is identified as indicating the ab- sence of paper, and the size of the original is identified based on the combination of changes in level at five points (T02-404- 02).

[6]The scanner remains in wait (for a press on the Start key).

The No. 1 mirror base moves to home posi- tion, and the scanner waits for a press on the Start key (wait state).

F02-404-02

AB-Configuration						Inch-Configuration
Originals Point of CCD detection					Original	Originals Point of CCD detection			Original
size	1	2	3	4	sensor	size	1	2	sensor
A3						11"* 17"
B4						LGL
A4R						LTRR
A4						LTR
B5						None
B5R
None						: Changes		: Does not changes

T02-404-02

2-14 R COPYRIGHT © 2001 CANON INC. CANON iR2200/iR2800/iR3300 REV.0 MAR. 2001