Incremental printing of symbolic information – Ink jet – Controller
Reexamination Certificate
2006-08-01
2006-08-01
Gray, David M. (Department: 2861)
Incremental printing of symbolic information
Ink jet
Controller
C347S016000
Reexamination Certificate
active
07083251
ABSTRACT:
A method of compensating a sheet feeding error in an ink-jet printer includes printing a test pattern on the sheet; scanning the printed test pattern using the image sensor and measuring a distance W1between a starting point X1sand an ending point X1eof the test pattern; driving the feeding roller and moving the sheet to a set distance Hmso that the set distance Hmis shorter than a length of the test pattern in a sheet feeding direction; scanning the test pattern using the image sensor and measuring a distance W2between a starting point X2sand an ending point X2eof the test pattern; calculating a distance H, along which the sheet is actually fed, from a difference between the distances W2and W1; calculating a feeding error E of the sheet from a difference between the feeding distance H and the set distance Hm; and compensating for the sheet feeding error E at the set distance Hm.
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European Search Report; Dated: Jun. 23, 2004.
Kang Kyung-pyo
Kim Hyoung-il
Gray David M.
Lebron Jannelle M.
Samsung Electronics Co,. Ltd.
Staas & Halsey , LLP
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