Basic Sequence Of Operations - Canon NP6251 Service Manual

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CHAPTER 3 EXPOSURE SYSTEM

3. Basic Sequence of Operations

The distance over which the scanner moves is determined by the microprocessor

based on the copy size, reproduction ratio, and copying mode.

The microprocessor computes the dimensions of the original when determining the

distance over which the scanner moves forward.

Ratio key ON

Scanner motor (M3)

Scanner home

position sensor (PS1)

Scanner original

leading edge 1

sensor (PS3)

Scanner motor drive

signal (M3ON)

Scanner forward

signal (SCFW)

Scanner stop signal

Scanning lamp (LA1)

Lens drive motor

Blanking exposure

Copy Start key ON

*1 Moves the lens according to the selected reproduction ratio and copy size.

*2 The degree of braking may be adjusted in service mode (*3*).

Figure 3-302

CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)

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