Color Development - Ricoh M5 Service Manual

2.

Color Development

Bias Brush
– Color Toner –
The major difference between color development and black ferrite development is that color toner
contains no ferrite material.
electricity rather than magnetic attraction.
– Color Development –
The toner supply roller is made of foam rubber.
development roller. Since these two rollers rotate in opposite directions, the friction between them
charges the toner positively.
become negative, which is the primary triboelectric charge of the development roller. At this point,
the level of static electricity is still insufficient to fully develop the latent image with the color
toner. For this reason a special color toner development roller is necessary (See the following page.)
Color toner adheres to the development roller because of static
It carries colored toner from the toner tank to the
This makes the "floating electrodes" on the development roller
3 - 3 3
25, 1985
May,
Toner Cartridge
Toner Mixing Plate