Image forming apparatus

Details Image forming apparatus Image forming apparatus

1999-02-10

1999-10-19

Brase, Sandra

Electrophotography

Control of electrophotography process

Responsive to copy media characteristic

399306, 399309, G03G 1500

Patent

active

059702770

ABSTRACT:
The present invention relates to an image forming apparatus which forms images on both surfaces of a sheet-shaped medium using the electrophotographic method. There is described a double-sided image forming apparatus, which includes a first and a second image bearing elements to bear toner images, a first and a second transfer units for transferring the toner images to the sheet-shaped medium from the first and the second image bearing elements, a fixing unit for fixing the toner images transferred to the sheet-shaped medium, a discharger to discharge electric charges residing on the sheet-shaped medium, a detector to detect thickness and/or stiffness data of the sheet-shaped medium, and a controller to control a first image forming mode which enables to form images on both surfaces of the sheet-shaped medium, and to control a second image forming mode which enables to form an image on only a single surface of the sheet-shaped medium.

REFERENCES:
patent: 4427285 (1984-01-01), Stange
patent: 4688925 (1987-08-01), Randall
patent: 4941021 (1990-07-01), Uchida et al.
patent: 4958187 (1990-09-01), Tsuchiya et al.
patent: 5585908 (1996-12-01), Rakov et al.
patent: 5655176 (1997-08-01), Inoue et al.
patent: 5826143 (1998-10-01), Haneda et al.
patent: 5848323 (1998-12-01), Umeda et al.

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