HP Color LaserJet CP1210 Series; Color LaserJet CP1510 Series - Page 101

Transfer stage
Step 4: primary transfer
The toner image on the photosensitive drum is transferred to the ITB. The DC positive bias is applied
to the primary transfer pad. The negatively charged toner transfers to the ITB from the drum surface.
Figure 5-13 Primary transfer
ITB
Primary transfer pad
Photosensitive
drum
DC bias
Step 5: secondary transfer
The toner image on the ITB is transferred to the print media. The DC positive bias is applied to the
secondary transfer roller. As the media passes between the secondary transfer roller and the ITB, the
toner image is transferred to the media.
Figure 5-14 Secondary transfer
ITB
Secondary transfer roller
Media
ITB drive roller
DC bias
ENWW Image-formation system 83