Flash fusing apparatus for reducing occurrence of spots on recor

Details Flash fusing apparatus for reducing occurrence of spots on recor Flash fusing apparatus for reducing occurrence of spots on recor

1987-09-29

1989-04-11

Moses, R. L.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

355 3FU, 219216, G03G 1520

Patent

active

048210528

ABSTRACT:
A flash lamp apparatus for reducing occurrence of spots on a recording paper wherein an overlapping portion formed between two adjacent fusing areas of the recording paper receives a first flash and a second flash from a flash lamp so as to heat and fuse a toner on the recording paper. The overlapping portion is controlled so as to reduce occurrence of spots on the recording paper by reducing an area of the overlapping portion on a recording paper. Such reduction in the overlapping portion may be obtained by controlling a frequency of the flash or controlling a feeding velocity of the recording paper. Alternatively, the fusing energy of the overlapping portion may be reduced by changing alternately the radiating energy.

REFERENCES:
patent: 3445626 (1969-05-01), Michaels
patent: 4386840 (1983-06-01), Garthwaite et al.
patent: 4434353 (1984-02-01), Marsh et al.

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