During Copying/Printing (Normal Speed); During Copying/Printing (2/3 Speed, 1/3 Speed) - Canon iR C6800 Series Service Manual

Chapter 7

7.3.2 During Copying/Printing (normal speed)

Full color, Plain paper, A4, 1 Copy/Print
<Characteristics>
While an image is being formed on the intermediate transfer belt, the machine keeps the ITB cleaning blade and the
secondary outside roller away from the belt.
Start key
ON
PSTBY PINTR
ITB HP signal
Drum/ITB motor
(M2)
Primary charging
bias
Grid bias
Developing
rotary motor (M5)
Black developing
bias
Color developing
bias
Pre-transfer charging
bias
Primary transfer ATVC
Primary transfer bias
Secondary transfer
Secondary transfer ATVC
bias
Secondary transfer
outside roller shift
motor (M20)
ITB cleaner shift ITB cleaning
motor (M21)
F-7-5
While making mono copies/prints, the machine keeps the ITB cleaning blade and the secondary toner outside roller
in contact with the intermediate transfer belt at all times.

7.3.3 During Copying/Printing (2/3 speed, 1/3 speed)

Full color, Heavy paper or OHP, A4, 1 Copy/Print
<Characteristics>
The machine uses 2/3 speed when it makes full color prints or uses heavy paper (105 to 163 g). This sequence is
basically the same as normal speed sequence, the difference being that the machine reduces the process speed after
primary transfer to 2/3, thus increasing fixing on heavy paper.
The machine uses 1/3 speed when it makes full color prints and uses heavy paper (163 g or more) or transparency.
This sequence is also identical to normal speed sequence, the difference being that the machine reduces the process
speed to 1/3 speed after primary transfer.
The machine uses 2/3 speed and 1/3 speed for full color mode, not for mono color mode.
7-10
PRINT
Bk
M Y C
LSTR PSTBY
Secondary transfer
outside roller cleaning
ITB cleaning
0005-5911
0005-5913