Positional deviation correction pattern, method of forming positional deviation correction pattern, and image forming apparatus

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United States of America Patent

PATENT NO 9817350
SERIAL NO

14968085

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Importance

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Abstract

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A positional deviation correction pattern includes a first and second pattern image portions adjacent in a sub-scanning direction at the same position in a main-scanning direction, with the same width in the main-scanning direction. Each image portion includes a first side extending in the sub-scanning direction, a second side continuing from one end of the first side and extending in a direction intersecting the sub-scanning direction, and a third side continuing from the other end and extending in a direction intersecting both the sub-scanning direction and the second side. The second sides have the same inclination angle to a virtual line parallel to the main-scanning direction. The third sides have the same inclination angle to the virtual line. A length of one image portion in the sub-scanning direction gradually increases from one end to the other end in the main-scanning direction, a length of the other image portion gradually decreases.

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Patent Owner(s)

Patent OwnerAddress
RICOH COMPANY LIMITED3-6 NAKAMAGOME 1-CHOME OHTA-KU TOKYO 143-8555

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Endoh, Shuuichi Saitama, JP 9 94
Komuro, Ichiro Tokyo, JP 15 242
Mizawa, Junichi Kanagawa, JP 3 2
Mukai, Masato Kanagawa, JP 10 111
Ohmine, Toru Kanagawa, JP 4 11
Sato, Kenji Kanagawa, JP 538 4969
Yoshikawa, Yasuko Kanagawa, JP 2 2

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