| 发明名称 |
METHOD AND DEVICE FOR CHECKING NOZZLE OF INKJET PRINTER |
| 摘要 |
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. |
| 申请公布号 |
US2016271957(A1) |
申请公布日期 |
2016.09.22 |
| 申请号 |
US201314915928 |
申请日期 |
2013.11.08 |
| 申请人 |
PEKING UNIVERSITY FOUNDER GROUP CO., LTD. ;PEKING UNVERSITY ;FOUNDER INFORMATION INDUSTRY HOLDINGS CO., LTD. ;BEIJING FOUNDER ELECTRONICS CO., LTD. |
发明人 |
ZHANG Yongtai;LIU Zhihong |
| 分类号 |
B41J2/165 |
主分类号 |
B41J2/165 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for checking nozzles in an inkjet printer, characterized in comprising:
obtaining an electronically scanned image which is obtained from a printed paper image that has been printed on the inkjet printer according to a checking image, the checking image being a predetermined checking image having correspondence relationships between pixel point positions and numbers of nozzles in the inkjet printer; analyzing the scanned image to obtain pixel point positions free of ink in the scanned image; and according to the pixel point positions free of ink, obtaining and outputting the corresponding nozzle numbers. |
| 地址 |
Beijing CN |
