Laser scanner protecting mechanism

Details Laser scanner protecting mechanism Laser scanner protecting mechanism

1991-07-08

1992-10-20

Miller, Jr., George H.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

346160, G01D 942, G01D 1514

Patent

active

051574160

ABSTRACT:
A laser scanner protecting mechanism is provided for the laser scanning unit of a laser printer having an upper body and a lower body which divide, the sheet transport path defining a boundary therebetween. The printer permits the upper body to be pivoted away from the lower body to expose inner workings of the printer and to provide access to a process cartridge that is removably mounted into the upper body. The laser scanner unit, mounted in the upper body above the process cartridge, is protected from exposure to dust and solid materials in the air or the inadvertent contact of an operator's hand through an exposure opening by a cover adapted to be moved between a first position for covering the exposure opening of the laser scanner unit when the process cartridge is removed and a second position retracted from the first position when the process cartridge is mounted.

REFERENCES:
patent: 4947208 (1990-08-01), Komatsu et al.
patent: 4955693 (1990-09-01), Bobba
patent: 5083158 (1992-01-01), Kashima et al.
patent: 5095335 (1992-03-01), Watanabe

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