Document reader module
First Claim
Patent Images
1. A document reader comprising:
- a frame member having a first section having a first planar surface thereon and also having a second section having a second planar surface thereon, said first and second sections being in spaced parallel relationship to each other and said first and second planar surfaces being in spaced parallel relationship with each other;
said frame member also having a guide surface which is upstanding from said frame member and perpendicular to said first planar surface;
transporting means for moving documents on their lower edges along a line which is parallel to said first planar surface and also for moving said documents in a plane which is parallel to said guide surface;
a read head;
support means for supporting said read head for movement in a direction which is perpendicular to said first planar surface and parallel to said guide surface; and
adjusting means for adjustably fixing said read head at a predetermined distance from said first planar surface;
said adjusting means including an indicator which is coupled to said read head to move therewith;
said read head when moved to align said indicator with a line of data on a said document positioned on said second planar surface being effective to position said read head at said predetermined reading distance from said first planar surface.
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Abstract
A document reader module which provides precise alignment for the document being read and the associated reader, like an optical reader. An integrated frame member provides accurate control surfaces for the precise alignment mentioned. An elevator mechanism mounted on the frame member provides an apparatus for adjusting the read head relative to the line of data on the documents being read. A special pinch roller construction, which can be locked in a retracted position, facilitates the removal of jammed documents from the associated document track.
166 Citations
22 Claims
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1. A document reader comprising:
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a frame member having a first section having a first planar surface thereon and also having a second section having a second planar surface thereon, said first and second sections being in spaced parallel relationship to each other and said first and second planar surfaces being in spaced parallel relationship with each other;
said frame member also having a guide surface which is upstanding from said frame member and perpendicular to said first planar surface;transporting means for moving documents on their lower edges along a line which is parallel to said first planar surface and also for moving said documents in a plane which is parallel to said guide surface; a read head; support means for supporting said read head for movement in a direction which is perpendicular to said first planar surface and parallel to said guide surface; and adjusting means for adjustably fixing said read head at a predetermined distance from said first planar surface; said adjusting means including an indicator which is coupled to said read head to move therewith;
said read head when moved to align said indicator with a line of data on a said document positioned on said second planar surface being effective to position said read head at said predetermined reading distance from said first planar surface. - View Dependent Claims (7, 8, 9, 10, 20)
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2. A document reader comprising:
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a frame member having first and second planar surfaces fixed in spaced parallel relationship with each other and a guide surface which is upstanding from said frame member and perpendicular to said first planar surface; transporting means for moving documents on their lower edges along a line which is parallel to said first planar surface and also for moving said documents in a plane which is parallel to said guide surface; a read head; support means for supporting said read head for movement in a direction which is perpendicular to said first planar surface and parallel to said guide surface; and adjusting means for adjustably fixing said read head at a predetermined distance from said first planar surface; said adjusting means including an indicator which is coupled to said read head to move therewith, said indicator when aligned with characters to be read on said document being effective to thereby position said read head said predetermined distance form said first planar surface to enable said characters on said document to be read when said document is moved on its lower edge along said line. said adjusting means including a stationary distance scale and an associated pointer which is coupled to said read head to move therewith to enable said read head to be re-positioned at said predetermined distance from said first planar surface. - View Dependent Claims (3, 4, 5, 6)
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11. A document reader module comprising:
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support means for supporting said reader module including a frame member having first and second planar surfaces fixed in spaced parallel relationship with each other and a guide surface which is upstanding from said frame member and perpendicular to said first planar surface; a read station having said guide surface located thereat; transporting means for moving documents to be read to said read station; said transporting means including a document track having first and second track bottom areas located on opposed sides of said guide surface with said first and second track bottom areas being located on an aligning line which is parallel to said first planar surface;
said transporting means moving said documents on their lower long edges along said aligning line and also moving said documents in a plane which is parallel to said guide surface;a read head located at said read station; support means for supporting said read head for movement in a direction which is perpendicular to said first planar surface and parallel to said guide surface; and adjusting means for adjustably fixing said read head at a predetermined reading distance form said aligning line which is parallel to said first planar surface; said adjusting means including an indicator which is coupled to said read head to move therewith;
said read head when moved to align said indicator with a line of data on a said document positioned on said second planar surface being effective to position said read head at said predetermined reading distance from said aligning line. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 21, 22)
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Specification