Image forming apparatus capable of forming at least one...

Details Image forming apparatus capable of forming at least one... Image forming apparatus capable of forming at least one...

2008-05-06

2008-05-06

Gray, David M. (Department: 2852)

Electrophotography

Control of electrophotography process

Responsive to copy media characteristic

C399S080000, C399S082000

Reexamination Certificate

active

11080826

ABSTRACT:
At forming an image only on one side of a sheet, an image forming unit is controlled by a control unit to form a back-side pattern image on the back side of the sheet. At forming images on both sides of sheets, when a blank side where no image is formed exists, similarly, the back-side pattern image is formed on the blank side. In single-sided printing, a back-side pattern image is formed on the back side of the sheet. In double-sided printing, a predetermined image is formed on a blank page and thus no blank page occurs. It is therefore possible to prevent the back side of a sheet on which an important document is printed from being used for other purpose, and consequently security is enhanced.

REFERENCES:
patent: 5194945 (1993-03-01), Kadowaki et al.
patent: 5999766 (1999-12-01), Hisatomi et al.
patent: 6782217 (2004-08-01), Ando
patent: 6785488 (2004-08-01), Katsuyama
patent: 2003/0016959 (2003-01-01), Fujikura et al.
patent: 2003/0053117 (2003-03-01), Payne et al.
patent: 01-129652 (1989-05-01), None
patent: 04-183064 (1992-06-01), None
patent: 08-167993 (1996-06-01), None
patent: 10-271318 (1998-10-01), None
patent: 2000-307857 (2000-11-01), None
Machine Translation and Abstract of JP08167993.

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