Printers with simplex and duplex cut sheet fusing

Details Printers with simplex and duplex cut sheet fusing Printers with simplex and duplex cut sheet fusing

1989-02-27

1990-05-22

Moses, R. L.

Photocopying

Contact printing

Light boxes

355319, 355 23, 219216, G03G 1520

Patent

active

049281470

ABSTRACT:
Image defining toner is transferred to cut sheets and fused at one of two fuser stations. One station is positioned to fuse the image on one side when duplex copying or printing is selected. The other fuser station performs fusing when simplex copying is selected but fuses the second side copy for duplexing. When flash lamps are employed for the fuser station, the lamps are composed of multiple bays with a single power source coupled to each bay in sequence so that the power source size need only accommodate the power level demand of one bay. The time between trigger pulses is extended by commencing fusing with an intermediate bay followed by the initial bay and then the final bay as the image area requiring fusing passes along its path in proximity to the faces of the flash lamp bays.

REFERENCES:
patent: 4067649 (1978-01-01), Hubbard et al.
patent: 4272181 (1981-06-01), Treseder
patent: 4386840 (1983-06-01), Garthwaite et al.
patent: 4434353 (1984-02-01), Marsh et al.
patent: 4488801 (1984-12-01), Gibson
patent: 4496142 (1985-01-01), Iwasaki
patent: 4526459 (1985-07-01), Bresnick
patent: 4541705 (1985-09-01), Knechtel
patent: 4768057 (1988-08-01), Kumada et al.
IBM Technical Disclosure Bulletin by D. M. Janssen et al. Entitled "Electrophotographic Printer with Duplex Capability", vol. 24, No. 1B, 6/81, pp. 810-811.

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