Image forming device having developing material case and a...

Details Image forming device having developing material case and a... Image forming device having developing material case and a...

2008-09-22

2011-12-20

Gray, David (Department: 2852)

Electrophotography

Image formation

Development

C399S295000

Reexamination Certificate

active

08081909

ABSTRACT:
There is provided an image forming device, comprising: an image holding unit configured to hold an image formed by developing material; a developing material case configured to accommodate the developing material and to have a supplying opening facing the image holding unit; a carrying unit having a plurality of carrying electrodes, the carrying unit being configured to carry the developing material accommodated in the developing material case toward the image holding unit by generating a traveling electric field through the plurality of carrying electrodes; a vibrator that vibrates the carrying unit; and a controller that controls the vibrator to change a frequency of vibration.

REFERENCES:
patent: 4418643 (1983-12-01), Barto et al.
patent: 4527884 (1985-07-01), Nusser
patent: 4558941 (1985-12-01), Nosaki et al.
patent: 6215974 (2001-04-01), Katoh et al.
patent: 2003/0175052 (2003-09-01), Adachi et al.
patent: 2006/0210320 (2006-09-01), Nakagawa et al.
patent: 61-73167 (1986-04-01), None

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