发明名称 |
Inkjet printhead calibration |
摘要 |
In various methods, image registration variations among test patterns are used to calibrate misalignment among one or more printheads, paper advance distance, different portions of an inkjet printhead, or bidirectional printhead alignment. A set of test patterns are printed. Each pattern includes a reference portion and a varying portion. The varying portion is changed from pattern to pattern in a manner for testing a parameter being calibrated. An optical sensor scans each test pattern. The parameter setting for the lest pattern having the highest reflectance (i.e., most blank space) is selected as the calibrated parameter value.
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申请公布号 |
US6076915(A) |
申请公布日期 |
2000.06.20 |
申请号 |
US19980128455 |
申请日期 |
1998.08.03 |
申请人 |
HEWLETT-PACKARD COMPANY |
发明人 |
GAST, PAUL DAVID;HICKMAN, MARK S;DONOVAN, DAVID H.;GROS, XAVIER;MIQUEL, ANTONI GIL |
分类号 |
B41J2/01;B41J2/21;B41J29/393;B41J29/46;(IPC1-7):B41J29/393 |
主分类号 |
B41J2/01 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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