发明名称 |
PRINTING AND PHOTOCOPYING DEVICE AND METHOD WHEREBY ONE TONER MARK IS SCANNED AT AT LEAST TWO POINTS OF MEASUREMENT |
摘要 |
<p>The invention relates to an electrographic printing or photocopying device and method. A toner mark (10) is provided on a photoconductive drum and printed with toner using a developing station. The toner mark (10) is scanned by a sensor at two points of measurement (a1,a2). The amount of toner in a developing mixture consisting of two components depends upon the difference (DELTAU) or the quotient of the amount of the signals of the sensor at both points of measurement. A device which is also disclosed enables the exact length of the toner mark (10) to be determined.</p> |
申请公布号 |
EP1047980(B1) |
申请公布日期 |
2002.04.10 |
申请号 |
EP19990904782 |
申请日期 |
1999.01.15 |
申请人 |
OCE PRINTING SYSTEMS GMBH |
发明人 |
KNOTT, JOSEPH;SCHWARZKOPF, ANDRE;BREMMER, PETER |
分类号 |
G01N21/47;G03G15/00;G03G15/01;G03G15/08;(IPC1-7):G03G15/08 |
主分类号 |
G01N21/47 |
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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