Method and device for checking nozzle of inkjet printer

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United States of America Patent

PATENT NO 9662889
APP PUB NO 20160271957A1
SERIAL NO

14915928

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Abstract

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A method and device for checking nozzles in an inkjet printer is disclosed. The checking method comprises: obtaining an electronically scanned image which is a printed paper image printed by the inkjet printer according to a checking image, correspondence relationships between pixel point positions and numbers of nozzles in the inkjet printer being preset in the checking image (step 11); analyzing the scanned image to obtain pixel point positions free of ink in the scanned image (step 12); and according to the pixel point positions free of ink, obtaining and outputting the corresponding nozzle numbers (step 13). This invention may realize automatic checking of blocked nozzles, improve the convenience of checking, and reduce the error rate of checking.

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Patent Owner(s)

Patent OwnerAddress
PEKING UNIVERSITY100871 NO 5 THE SUMMER PALACE ROAD BEIJING HAIDIAN DISTRICT BEIJING CITY BEIJING CITY 100871
PEKING UNIVERSITY FOUNDER GROUP CO LTD100871 8TH FLOOR FOUNDER BUILDING 298 CHENGFU ROAD HAIDIAN DISTRICT BEIJING MUNICIPAL DISTRICT BEIJING CITY 100871
BEIJING FOUNDER ELECTRONICS CO LTDFOUNDER BUILDING NO 9 SHANGDIWU STREET HAIDIAN DISTRICT BEIJING 100085
FOUNDER INFORMATION INDUSTRY HOLDINGS CO LTD6TH FLOOR ZHONGGUANCUN FOUNDER BUILDING NO 298 CHENGFU ROAD HAIDIAN DISTRICT BEIJING 100871

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Liu, Zhihong Beijing, CN 116 505
Zhang, Yongtai Beijing, CN 2 1

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