Transfer Block; Step 4: Image Transfer; Step 5: Separation From The Drum; Figure 1-17 Image Transfer - HP LaserJet Enterprise 700 M712 series Handbuch Zur Fehlerbehebung

Transfer block

During the two steps that comprise this block, a toner image on the photosensitive drum transfers to the
paper.

Step 4: image transfer

The toner on the photosensitive drum is transferred to the paper. The transfer bias is applied to the
transfer roller to charge the paper positive. The negatively charged toner on the drum surface transfers
onto the paper.
Figure 1-17
Transfer roller

Step 5: separation from the drum

The elasticity of the paper and the curvature of the photosensitive drum cause the paper to separate
from the photosensitive drum. The static charge eliminator bias is applied to the static charge
eliminator. The static charge eliminator reduces back side static discharge of the paper after the
transfer process for stable paper-feed and print-quality.
Figure 1-18
Static charge eliminator
26 Chapter 1 Theory of operation
Image transfer
Photosensitive
drum
Transfer bias
Separation from the drum
Photosensitive
drum
Transfer roller
Static charge
eliminator bias
Paper
Paper
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