Image forming device having laminating function

Details Image forming device having laminating function Image forming device having laminating function

1997-06-16

1999-03-02

Moses, Richard

Electrophotography

Machine operation

Job mode

399407, G03G 2100

Patent

active

058783032

ABSTRACT:
A laser printer includes a photosensitive drum on which a toner image corresponding to an electrostatic latent image is formed, and a transfer roller in confronting relation to the photosensitive roller for transferring the toner image to a sheet passing between the drum and the transfer roller. The printer also includes a fixing portion at which the toner image on the sheet is fixed. A control unit is connected to the transfer roller for controlling a transfer bias to be applied thereto. A panel switch is provided to select one of a printing mode and a lamination mode. If lamination mode is selected, the fixing portion heat-seals a pair of lamination sheet members. In the lamination mode, no bias voltage is applied to the transfer roller when the lamination sheet members are passing between the photosensitive drum and the transfer roller for preventing residual toner on the drum and the roller from being transferred onto the lamination sheet members.

REFERENCES:
Patent Abstracts of Japan, Section P, No. 669, vol. 12, No. 58, p. 26, Feb. 20, 1988 and JP-A-62201471, Sep. 5, 1987.
Patent Abstracts of Japan, Section P, Sect No. 631, vol. 11, No. 334, p. 128, Oct. 31, 1987 and JP-A-62116979, May 28, 1987.
Patent Abstracts of Japan, Section P, Sect. No. 630, vol. 11, No. 331, p. 50, Oct. 29, 1987 and JP-A-62113182, May 25, 1987.

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