The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 07, 2008

Filed:

Dec. 02, 2004
Applicants:

Masanori Seto, Iwatsuki, JP;

Yoshiaki Haginoya, Iwatsuki, JP;

Inventors:

Masanori Seto, Iwatsuki, JP;

Yoshiaki Haginoya, Iwatsuki, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/00 (2006.01); G03G 15/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

When a process cartridge is installed in a laser printer main body, a projecting rod, which is provided at a toner tank and which projects from a side surface of a housing of the cartridge, enters into a U-shaped positioning portion such that the cartridge is positioned. The projecting rod pushes a lever of a switch downward and turns the switch on. Operation of the printer becomes possible, and power is supplied to a light scanning device. Even if the cartridge, in which the toner tank is not installed, is installed in a laser printer, because the projecting rod does not project out, the process cartridge is not positioned, and the switch remains off. The printer does not operate and power is not supplied to the light scanning device.


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