HP color laserjet 2550 series Servicehandbuch
Step 10: roller charging (transfer-belt cleaning roller)
The transfer-belt cleaning roller, to which a dc positive bias is applied, imparts a positive
charge to the residual toner on the transfer belt. This positive charge is stronger than the
positive charge applied in step 8, so the earlier charge now behaves like a negative charge.
charge to the residual toner on the transfer belt. This positive charge is stronger than the
positive charge applied in step 8, so the earlier charge now behaves like a negative charge.
Figure 4-25.
Step 9: roller charging (transfer belt cleaning roller)
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Image-formation system
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