Apparatus and method for forming a toner image

Details Apparatus and method for forming a toner image Apparatus and method for forming a toner image

1999-06-24

2000-11-21

Chen, Sophia S.

Electrophotography

Control of electrophotography process

Control of fixing

399 69, G03G 1520

Patent

active

061514632

ABSTRACT:
It is an object of this invention to provide a copying machine which can suppress an increase in total power consumption of the overall machine. In executing a plural image formation mode in which a plurality of read images are continuously transferred onto an intermediate transfer medium (405) as an image carrier and transferred onto printing media, when a read original toner image formed on a photosensitive member (402) is transferred first onto the intermediate transfer medium (405), a toner image formed on the intermediate transfer medium (405) is then transferred onto a printing medium, and the images are fixed on the printing media by using a fixing roller (407) incorporating two heaters, energization of the two heaters is alternately inhibited at least in the interval between the instant at which one image is transferred onto the intermediate transfer medium (405) and the instant at which a next image is read and transferred, thereby performing control to inhibit the two heaters from simultaneously generating heat.

REFERENCES:
patent: 5315350 (1994-05-01), Hirobe et al.
patent: 6008829 (1999-12-01), Wakaymiya et al.

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