Fixing Block - Canon LBP2900 series Service Manual

Chapter 2

2.4.1.6 Fixing Block

The toner image moved to print paper in the transfer block is merely held to the print paper by the work of static charges, and can easily be disturbed by
contact with a hand, for example.
In this block, the print paper and the toner image are subjected to pressure and heat so that the toner will be fused with the fibers of the paper to form a
permanent image.
step 8:Å@fixing
The machine uses an on-demand method of fixing, which is characterized by a low thermal capacity. The fact also has enabled the machine to warm up
quickly; moreover, the heater need not be supplied with power during standby. A short wait time and power consumption are two characteristics of an on-
demand fixing method.
The machine keeps the potential of the fixing film lower than that of the pressure roller, which makes the negatively charged toner on print paper more
repellent and not tending to stick to the fixing film.
2-10
F-2-12
Pressure roller
Paper
Pressure roller
F-2-13
Photosensitive
drum
Fixing film
Toner
Fixing film
Fixing heater
Toner
Paper
0008-0107