Appeal No. 96-1380
Application 08/219,189
Figure 4 shows the invention applied to a printing
apparatus that employs an intermediate transfer belt 16 which
receives successive single-color toner images from the
photoconductive member 10 by the action of corona generator 24
at transfer station 22, thereby producing a multicolor toner
image for transfer in one pass to the sheet 20 by the action
of corona generator 36 (Spec. at 11, line 10 to p. 13, line
30).
Withdrawal of the blade 28 causes the collected residual
material to move with belt 16 to transfer station 22, where it
transferred to the photoconductive member 10 (by reversal of
the bias on the corona generator 24) for removal by the
cleaning station (not shown) for the photoconductive member.
Figure 5 shows the invention applied to printing
apparatus that employs an electrostatic transfer belt 14 to
hold the sheet 20 against the photoconductive member 10 as the
toner image is transferred from photoconductive member 10 to
the sheet (Spec. at 14, lines 9-14). When blade 28, shown in
the "doctor" mode, is disengaged from the belt, the residual
material is carried thereby to the photoconductive member 10,
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Last modified: November 3, 2007