Hewlett-Packard Color LaserJet 1500 Service Manual
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Brand: HP
Category: All in One Printer , PDA , Printer
Type: Service manual for HP 1500
Pages: 312 (14.61 Mb)
88 Theory of operation Q2488-90901
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.
Figure 38. Step 9: roller charging (transfer belt cleaning roller)