Chapter 4 Image Processing System; Outline - Canon GP605 Service Manual

I . OUTLINE
Table 4-101 shows the major functions of the image processing system.
Item
CCD
AE
Shading correction
Binary processing
Memory size
Others
COPYRIGHT © 1999 CANON INC.
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 GP605/605V REV.0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)

CHAPTER 4 IMAGE PROCESSING SYSTEM

Description
4-1