Image forming device with automatic power cutoff

Details Image forming device with automatic power cutoff Image forming device with automatic power cutoff

2004-12-02

2008-10-07

Ngo, Hoang (Department: 2852)

Electrophotography

Diagnostics

Component present or mounted

C399S027000

Reexamination Certificate

active

07433608

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.

REFERENCES:
patent: 5909603 (1999-06-01), Suzuki et al.
patent: 6714224 (2004-03-01), Yamanaka et al.
patent: 2001/0051051 (2001-12-01), Matsumoto
patent: 2004/0008997 (2004-01-01), Yoshimoto
patent: 2004/0120723 (2004-06-01), Ito
patent: 4-190253 (1992-07-01), None
patent: 05-323714 (1993-07-01), None
patent: 5-323714 (1993-12-01), None

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