Canon GP405, Service Manual

Page: 105 / 682

COPYRIGHT © 1999 CANON INC. CANON 405/335 REV.0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
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CHAPTER 4 IMAGE FORMATION SYSTEM
F. Image Memory
The machine is equipped with an image memory, and image data is stored in it (memory
copying) except when making one copy of one original (direct copying). The image memory
consists of a page storage area, in which compressed image data is stored on a page-by-page basis,
and a work area, in which images read by the scanner is stored temporarily for rotation or
compressed data (after processing) is stored temporarily.
Figure 4-313
Page memory for printing
(non-compression)
Image memory
for copier
Image memory
for printer
Image memory
for fax
Memory for reading
(non-compression)
Memory for header/footer
Image memory (32 MB standard)
Image memory (for expansion)
Work area Image storage area
Shared memory
32MB
Shared memory
Shared memory
32MB
Image memory (for expansion)