Canon NP-2020, Руководство по обслуживанию

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D C
Figure 2-10
During operation, the toner attracted to
the drum by the work of the surface potential of the
drum as well as the developing bias (at time of
positive component),
and it
turns the electrostatic
latent image to a visible image. The toner
by the surface potential ofthe drum and the
developing bias (at time of negative component).
A DC bias affects copydensity; a larger
approaching OV, the density but, at the
time, tends to cause fogging.
7 Step 5 Transfer
c o r o n a
4
Figure 2-11
In this step, a negative corona applied to the
of the paper so as to attract the positively
charged toner to the paper.
2 - 4
8. Step Separation
Figure 2-12
In this step, the paper separated from the drum
making use of the rigidity of the paper. Thin
paper, with rigidity, however, tends to remain
with the drum; to prevent a condition,
the static eliminator charged to a positive potential
to facilitate separation by weakening the static
attraction between the drum and paper.
9. Step7 Fixing
,
,
Figure 2-13
In this step, the paper carrying a transfer image
moves between two heated rollers, and the transfer
image fixed to the paper.
To prevent jams and toner offset, the upper roller
remains with the oil application roller
impregnated with oil.
6 C A N O N I N C .
C A N O N RN.0 MAY IN JAPAN [IMPRIME