Color Communication Specification - Canon MultiPASS C755 Service Manual

Time required for transmission protocol
Protocol
Mode
G3 standard
V.8/V.34
*1 Time from when other facsimile is connected to the line until image transmission begins.
*2 Post-message (between pages): Time from after one document has been sent until
transmission of the next document starts if several pages are transmitted.
*3 Post-message (after last pages): Time from after image transmission is completed until
line is switched from facsimile to telephone.
Minimum transmission time
Transmission output level
Receive input level
Modem IC

2.3 Color Communication Specification

ITU-T recommendation
Scanning Document size
Printing paper size
Resolution
Picture element
Coding
Color space
Illuminant Data
Sub sample
MultiPASS C755 Chapter 1: General Description
Pre-message Post-message
Protocol * 1 Protocol *
(between pages)
approx.18 sec. approx.4 sec.
approx.8 sec. approx.2 sec.
10 msec (G3), 0 msec (G3, ECM)
From 0 to -15 dBm
From -3 to -43 dBm
FM336
ITU-T T.30 ANNEX E (JPEG Color Fax)
A4
A4
200 200 dpi
8 bit
JPEG
CIELAB
CIE Standard Illuminant D50
4:1:1 (=Lab)
1-3
Post-message *
2
(after pages)
approx.4 sec.
approx.2 sec.
T.4 ANNEX E (JPEG Header)
T.42 (Color space for Color Fax)
T.81 (JPEG)
3