Invention Grant
- Patent Title: Systems and methods for alignment of laser printers
- Patent Title (中): 激光打印机对准的系统和方法
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Application No.: US13035790Application Date: 2011-02-25
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Publication No.: US08289358B2Publication Date: 2012-10-16
- Inventor: Michael Joseph Schaffstein
- Applicant: Michael Joseph Schaffstein
- Applicant Address: US CA Newport Beach
- Assignee: Conexant Systems, Inc.
- Current Assignee: Conexant Systems, Inc.
- Current Assignee Address: US CA Newport Beach
- Agency: Stoel Rives LLP
- Agent John R. Thompson
- Main IPC: B41J2/435
- IPC: B41J2/435 ; B41J2/47

Abstract:
Laser printers are plagued with an assortment of alignment issues. In color laser printers the issues are exacerbated. Variations in distance from the mirror to the drum can lines in different color planes to vary in size. Variations in angles in the facets of the mirror can cause alignment issues between lines. Even lack of synchronization between the dot clock and start of line indication can cause misalignment between rows. In addition, a cosine distortion occurs due to the non-constant linear velocity of the laser scan of a single line. A very high speed master clock can drive the laser scanning unit. By using a very high speed clock, the control circuitry has the resolution to compensate for many of these distortion types, by appropriately counting clock cycles and indicating such to the laser modulator.
Public/Granted literature
- US20110149010A1 SYSTEMS AND METHODS FOR ALIGNMENT OF LASER PRINTERS Public/Granted day:2011-06-23
Information query
IPC分类: