Canon LASER SHOT LBP-1210, Service Manual

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As the toner image transferred onto the paper in the transfer block is adhered only by electro-
static attraction, even a light touch will smear the image.
The toner particles are fused to the paper to make a permanent image by applying pressure
and heat to the paper and toner.
Step 6: Fixing
Figure 2-5-12
As the toner particles transferred onto the paper are held to the paper by the positive charge
applied to the back of the paper, they may be dispersed at fixing.
This printer applies the negative DC voltage to the fixing film via the pressure roller shaft
(pressure roller shaft is a mere continuity path). The negative charge is applied to the paper sur-
face by the fixing film. This improves the adhesion force of the toner particles to the paper and
prevents dispersion of the toner particles.
This printer utilizes an on-demand method which uses fixing film with small heat capacity.
This method has fast temperature rising time and it is not necessary to supply power to the fix-
ing heater during standby mode. Wait time of less than 8 seconds and energy conservation are
made possible by this method.
Fixing film is cylindrical film of polyamide. Its surface is coated with fluorine to prevent off-
set.
CHAPTER 2
2 - 41
Fixing film Fixing heater
Paper
Toner
Pressure roller
Fixing film
Toner
Paper
Pressure roller