Others; Controlling The Detection Of Original Sizes; Iv. Others - Canon NP6330 Service Manual

IV. OTHERS

A. Controlling the Detection of Original Sizes
1. Outline
The copier is provided with auto paper selection, auto ratio selection, and image
composition functions, all requiring identification of the size of originals.
As many as four original sensors for AB configuration and three original sensors for
inch configuration are mounted under the copyboard glass; when the copyboard cover
is closed, the presence/absence of an original over respective sensors is detected,
identifying the size of the original as being A3, A4, B4, or B5 for AB configuration and as
being 11" x 17 " (LDR), LGL, or LTR for inch configuration (default sizes).
Each original sensor consists of a LED and a phototransistor: the light from the LED
is detected by the photosensor, whose output is sent to the DC controller.
The size of original from the DF (accessory) is detected by the DF, and the data is
sent to the machine, which uses the data for auto paper selection, ratio selection, and
image composition while the DF is in use.
COPYRIGHT © 1997 CANON INC.
Download Service Manual And Resetter Printer at http://printer1.blogspot.com
CANON NP6330 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 3 EXPOSURE SYSTEM
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