发明名称 |
IMAGE FORMING APPARATUS, METHOD OF DETECTING PATTERN POSITION, AND IMAGE FORMING SYSTEM |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of accurately determining the position of a test pattern from a waveform of reflected light even when an ink color of the test pattern is different. <P>SOLUTION: An image forming apparatus includes: a reading means 30 to irradiate a recording medium with light to receive reflected light; a pattern data storage means 618 to store pattern data for forming a test pattern; a test pattern formation means 617 to form a test pattern by reading the pattern data; an intensity data storage means 525 to store intensity data of reflected data received from a scanning position of the light by a light reception means while the light moves on the test pattern; and a position detection means 616 to apply line position determination calculation to the intensity data included in a lower limit from a predetermined upper limit to detect the position of a line; wherein the test pattern formation means forms a test pattern where minimum values of the reflected light reflected by a plurality of lines constituting the test pattern are each set at a comparable level, and at least one color line out of the plurality of lines is formed with a pattern of first and second droplets having colors different from each other. <P>COPYRIGHT: (C)2013,JPO&INPIT |
申请公布号 |
JP2013111956(A) |
申请公布日期 |
2013.06.10 |
申请号 |
JP20110262964 |
申请日期 |
2011.11.30 |
申请人 |
RICOH CO LTD |
发明人 |
OKADA TATSUHIKO;YORIMOTO MAMORU;HORIKAWA DAISAKU;MORIWAKI MAKOTO |
分类号 |
B41J2/01;B41J29/46 |
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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