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US 9,013,761 B2Granted
Scanner with a scan sensor having a width smaller than the platen
AssigneeHewlett-Packard Development Company, L.P.
InventorJang Wei Chao
Life of this patent
Estimating the term…
Abstract
A scanner is disclosed. The scanner has a scan sensor with a width smaller than the width of the platen. The scanner scans a first pass of the platen with the scan sensor in a first position on one side of the platen. The scanner then moves the scan sensor to the other side of the platen and does a second pass.
Claims12
A scanner, comprising:
- a platen having a first width and a length;
- a scan sensor having a second width smaller than the first width, the scan sensor mounted in a carriage and movable perpendicular to the length from a first position on one side of the carriage to a second position on another side of the carriage, the carriage moveable along the length of the platen by a drive system;
- a controller coupled to the drive system and the scan sensor, the controller to scan a first pass along the length of the platen using the scan sensor in the first position, the controller starting the first pass at a first logical start location and ending the first pass at a first logical end location;
- the controller to scan a second pass along the length of the platen using the scan sensor in the second position, the controller starting the second pass at a second logical start location before the first logical start location and ending the second pass at a second logical end location after the first logical end location.
1 more element
A method of scanning, comprising:
- scanning a first pass on one side of a platen with a scan sensor having a width smaller than a width of the platen, wherein the scan is along a length of the platen;
- moving the scan sensor to a second side of the platen opposite the first side;
- scanning a second pass on the second side of the platen, wherein a scan length of the second side is longer than a scan length of the first side and the scan length of the second side overlaps each end of the scan length of the first side.
Dependencies are inferred from the claim text.