CHAPTER 1 GENERAL DESCRIPTION
COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
1-25
F. Development (step 4)
Figure 1-608
As shown in Figure 1-608, the developing assembly consists of a developing
cylinder made of a fixed magnet and a cylinder that rotates around it and a magnetic
blade.
The copier’s developer is a single-component developer made of magnetic resins.
The developer has insulating characteristics and becomes charged to a positive
potential by friction against the rotating cylinder.
Figure 1-609
A concentrated magnetic field exista at all times from the magnet to the tip of the
blade, attracting the developer.
Once inside the concentrated magnetic field, its strong bond to the blade will keep
it virtually immobile, causing it to deposit in an even layer on the cylinder.
Both AC bias and DC bias (negative component) are simultaneously applied to the
developing cylinder and the blade (developing bias), and the negative component of the
developing bias is larger than the positive component.
Developing
cylinder
Toner
Blade
Cylinder
Magnet
Magnet
Blade
Concentrated
magnetic field
Magnet
Toner
Содержание NP6330
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