Laser printer capable of cooling heat generating parts as well as reducing noise
Patent 5771055 Issued on June 23, 1998. Estimated Expiration Date: 
March 28, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
March 28, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesTotally enclosed air cooled electrical machines Unitary, modular, demountable optical system for laser diode/printing copying apparatus Optical scanner having laser diode as light source Electric motor assembly with muffler bank Patent #: 5453647 InventorsApplicationNo. 625020 filed on 03/28/1996US Classes:347/134, Optical elements interposed between record receiver and beam generator347/260Having deflectorExaminersPrimary: Le, N.Assistant: Anderson, L. Attorney, Agent or FirmForeign Patent References
International ClassesB41J 002/385G03G 013/04 Foreign Application Priority Data1995-03-28 JPAbstractA novel laser printer is disclosed, in which heat generating parts are positively cooled while reducing the noise generated by a blowing mechanism. A rotor of the motor for rotating a scanning mirror of a scanning device is surrounded by a cover. An air flow inlet port and an air flow outlet port are formed on the sides of the cover. The space in the proximity of the air flow inlet port and the air flow outlet port is divided by an air flow separation member. One longitudinal end of the air flow separation member is close to the rotor and the other longitudinal end and the lateral ends thereof are connected to the cover. The air flow separation member partially divides the rotating air flow generated around the rotor in the proximity of the air flow outlet port, and generates the discharge air flow, which in turn is discharged out of the cover. A suction air flow is introduced from the air flow inlet port to the interior of the cover which is now negative in pressure, in the form of the rotating air flow.Field of SearchHaving deflectorPolygon Having mounting or supporting means Having mounting or supporting means Including deflector Housing or mounting Housing or mounting Optical elements interposed between record receiver and beam generator Forced air circulation Electical type devices (e.g., transformers, motors, etc.) Partial enclosure or shroud Sound absorbing ventilating duct or curb (e.g., a/c, heat, air flow type) With fan to assist fluid flow Stacked plates or shells form interplate passages | |
