HP color laserjet 2550 series Manuales De Servicio
Step 8: fusing
The dc negative bias applied to the fusing film strengthens the holding force of the toner on
the print media and prevents the toner from scattering.
the print media and prevents the toner from scattering.
Figure 4-23.
Step 7: fusing
Step 9: roller charging (auxiliary transfer belt cleaning roller)
During secondary transfer, not all of the toner on the transfer belt is transferred to the print
media. Toner that remains on the belt is called "residual toner."
media. Toner that remains on the belt is called "residual toner."
The auxiliary transfer belt cleaning roller, to which a dc positive bias is applied, imparts a
positive charge to the residual toner, strengthening its hold on the transfer belt. This
prevents toner from falling off of the transfer belt and scattering in the printer.
positive charge to the residual toner, strengthening its hold on the transfer belt. This
prevents toner from falling off of the transfer belt and scattering in the printer.
Figure 4-24.
Step 8: roller charging (auxiliary transfer belt cleaning roller)
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Chapter 4 Theory of operation
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