Development (Step 4) - Canon NP6330 Service Manual

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F. Development (step 4)

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

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.

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.

Figure 1-608

Concentrated

magnetic field

Figure 1-609

CANON NP6330 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)

CHAPTER 1 GENERAL DESCRIPTION

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