Back to results
US 2003/0197959 A1Published application
Mounting of pre-scan optics for a laser scanning device
AssigneeLexmark International, Inc.
InventorChristopher Gregory Chee
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeLexmark International, Inc.
InventorChristopher Gregory Chee
Estimating the term…
A pre-scan optics assembly for a laser scanning device. A housing includes reference surfaces against which a pre-scan lens is directly referenced, to restrain the lens against rotation about the optical axis and the scan axis of the device. A lens carrier is attached to the housing and has an abutment surface to restrain the lens against rotation about the process axis of the device. A spring clip secures position of all components in the desired locations. The optical system aperture is formed directly in a wall of the lens carrier.
A pre-scan optics assembly for a laser scanning device, comprising:
A method for assembling a pre-scan optics assembly in a laser scanning device, said method comprising steps of:
A lens carrier for a pre-scan optics assembly in a laser scanning device having a housing for receiving said lens carrier, said lens carrier comprising:
A pre-scan optics assembly for a laser scanning device having an optical axis, a scan axis and a process axis, said pre-scan optics assembly comprising:
Dependencies are inferred from the claim text.
From the US filing history. Foreign family members aren’t listed.
Backward citations are indexed for grants only.
Drawings are temporarily unavailable. Open the PDF at USPTO
For lenses: lens and mount having complementary engagement means, e.g. screw/thread
Optical elements, systems or apparatus
Term end not estimated
1. Field of the Invention
The present invention relates to optical systems of laser scanning devices, such as laser printers, and, more particularly, to the pre-scan optics assemblies in such devices.
2. Description of the Related Art
The above-mentioned and other features and advantages of this invention, and the manner of attaining them, will become more apparent and the invention will be better understood by reference to the following description of an embodiment of the invention taken in conjunction with the accompanying drawings, wherein:
FIG. 1 is a perspective view of a pre-scan optics system in accordance with the present invention;
FIG. 2 is an exploded, perspective view of the pre-scan optics system shown in FIG. 1; and
Corresponding reference characters indicate corresponding parts throughout the several views. The exemplification set out herein illustrates one preferred embodiment of the invention, in one form, and such exemplification is not to be construed as limiting the scope of the invention in any manner.
Referring now to the drawings, and particularly to FIG. 1, there is shown a pre-scan optical assembly 10 in accordance with the present invention. Optical assembly 10 is suitable for a laser scanning device, such as a laser printer or the like.
Pre-scan optical assembly 10 is part of a pre-scan subsystem including a housing 12 which is an integral body mountable in the particular laser scanning device in which pre-scan optical assembly 10 will be used. Housing 12 may be a plastic cast body and includes tabs 14 and other fixtures or formations not relevant to the present invention, which will not be described in further detail herein.