Scanner page alignment tools
AssigneeXerox Corporation
InventorLee Coy Moore
Life of this patent
Estimating the term…
Abstract
This is a system to provide real time ways of aligning a paper original with a skewed image so that a right imaged reproduction is produced on subsequent copies. Alignment members used in the method of this invention are at least two members of: (A) flood lamps positioned above and below a platen, (B) alignment marks on the platen, and (C) a video camera.
Claims14
A method of aligning an image placed in an exposure station of an electrostatic copy system, said method comprising:
- providing a platen glass in said exposure station, placing face down on said platen an original paper or document to be transferred to and reproduced on a receiving surface of said electrostatic copy system,
- using at least two alignment members selected from the group consisting of lights or flood lamps above and below said platen, alignment marks on said platen and a video camera,
- illuminating said platen, both from below and above said platen sufficient to show a back lit image, and
- providing said back lit image to be viewed by an operator through a back of said paper, and
- realigning said back lit image so that it is in proper image alignment squared with said paper.
A method of providing an aligning image in an exposure station of an electrostatic copy system, said method comprising:
- providing a platen glass in said exposure station, placing face down on said platen an original paper or document to be transferred to and reproduced on a receiving surface of said electrostatic copy system,
- placing an alignment member in said exposure station, said alignment member comprising at least two members selected from the group consisting of alignment marks on said platen glass, flood lamps above and below said platen and a video camera,
- scanning and illuminating said platen, both from below and above said platen sufficient to show a back lit image,
- providing said back lit image to be viewed by an operator through a back of said paper, and providing said at least two alignment members that are configured to align an image on said original document to obtain an image thereon squared with said paper.
An electrostatic copy method comprising:
- providing a platen glass in an image exposure station of an electrostatic copier apparatus,
- providing in said image exposure station substrate alignment members, said substrate alignment members comprising a video camera, flood lamps and substrate alignment marks on said platen glass,
- providing said flood lamps, one positioned above said platen glass and one positioned below said platen glass,
- placing an imaged substrate face down on said platen glass, and during scanning of said platen glass and said imaged substrate, illuminating said platen glass and said imaged substrate from both above and below said platen glass, and
- using at least two of said substrate alignment members to align said imaged substrate to provide thereby an image thereon squared with said paper.
Dependencies are inferred from the claim text.