Electrophotographic recorder controller

Details Electrophotographic recorder controller Electrophotographic recorder controller

1984-06-18

1987-06-02

Prescott, A. C.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

355 3R, 355 3CH, 355 14CH, 355 14FU, 355 3SH, 430124, 118666, 118641, 219216, G03G 1500

Patent

active

046698604

ABSTRACT:
A method and apparatus for improving the quality of recordings from electrophotographic recording apparatuses by calculating the surface charge remaining on the recording medium adjacent the development electrode and adjusting the voltage of the development electrode to match the remaining surface charge; controlling the corona charger to operate at two levels, a first level for charging the surface of the recording medium and a second lower level at which neither light nor ions are emitted; controlling the fuser lamp in response to changes in ambient temperature, line voltage, and the rate of recording medium advancement to obtain optimum toner fusion without damage to the recording medium; deactivating the toner pump and air knife blower if the recording medium has not moved for a predetermined period of time, and further including a development electrode design for maintaining a uniform layer of toner adjacent the recording medium.

REFERENCES:
patent: 4075455 (1978-02-01), Kitamura et al.
patent: 4104692 (1978-08-01), Sudo et al.
patent: 4162847 (1979-07-01), Brandon
patent: 4301359 (1981-11-01), Ito et al.
patent: 4303334 (1981-12-01), Haupt et al.
patent: 4367037 (1983-01-01), Nishikawa
patent: 4538902 (1985-09-01), Inuzuka et al.

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