Chapter 4 Image Processing System; Outline - Canon ImageRunner 600 Service Manual

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Table 4-101 shows the major functions of the image processing system.

Shading correction

Binary processing

Number of CCD lines: 1

Number of pixels: 7500

Size of a CCD pixel: 7 × 7 µm

[1] Priority on speed by ABC processing

[2] Priority on image quality by pre-scanning

[1] Shading adjustment in service mode

[2] Shading correction executed for each copy

[1] Text/photo mode, text mode by random error diffusion (R-ED) method

[2] Print photo mode by screen dither processing

[1] Page Memory (DRAM)

18 MB (equivalent of 4 A4 originals; not compressed)

[2] Image server (hard disk)

2 GB (equivalent of 1,920 A4 originals; compressed)

[1] Original orientation detection

[2] Black pixel count

Table 4-101 Major Functions

CANON imageRUNNER 600 REV.1 JAN. 2000 PRINTED IN U.S.A.

CHAPTER 4 IMAGE PROCESSING SYSTEM

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