Canon iR2030, Service Manual

Page: 188 / 418

Chapter 6
6-4
- During printing
To prevent fogging of the drum, the developing DC bias is held higher than usual except during image formation.
To prevent the toner remaining on the photosensitive drum from sticking to the transfer charging roller, the transfer roller bias which is lower than that applied
during printing the is applied at the prescribed timing.
F-6-4
[1] Between sheets
- At the end of printing
To prevent fogging of the drum, the developing DC bias is held higher than usual except during image formation.
To prevent the toner remaining on the photosensitive drum from sticking to the transfer charging roller, the transfer roller bias which is lower than that applied
during printing the is applied at the prescribed timing.
F-6-5
[1] Time until post-rotation
PRINT [1]
PRINT
STBY INTR
Print command
is received
Main motor
(M204)
Scanner motor
(M203)
Primary charging
AC bias
Primary charging
DC bias
Developing
AC bias
Developing
DC bias
Transfer bias
Fixing film bias
Static eliminator
bias
Cleaning bias
[1]
PRINT LSTR STBY
Main motor
(M204)
Scanner motor
(M203)
Primary charging
AC bias
Primary charging
DC bias
Developing
AC bias
Developing
DC bias
Transfer bias
Fixing film bias
Static eliminator
bias