Title:
IMPACT ABNORMALITY DETECTION DEVICE
Document Type and Number:
Japanese Patent JP2023135281
Kind Code:
A
Abstract:
To provide an impact abnormality detection device which prevents erroneous detection of an impact position abnormality due to an installation positional deviation of ink jet heads.SOLUTION: An impact abnormality detection device comprises: a test image data acquisition unit 61 which acquires test image data by reading a test pattern obtained by discharging ink from a line head in which a plurality of ink jet heads having a plurality of nozzles for discharging ink arrayed are arranged in the longitudinal direction of the ink jet head; a distance measurement unit 62 which measures a distance between two nozzles straddling a joint of the adjacent ink jet heads in the line head on the basis of the test image data; and an abnormality detection unit 63 which detects an impact position abnormality on the basis of the measured distance between the two nozzles and a theoretical value of the distance between the two nozzles considering the installation positional deviation between the adjacent ink jet heads.SELECTED DRAWING: Figure 3
Inventors:
KAWASHIMA MASAHIRO
Application Number:
JP2022040416A
Publication Date:
September 28, 2023
Filing Date:
March 15, 2022
Export Citation:
Assignee:
RISO KAGAKU CORP
International Classes:
B41J2/01
Attorney, Agent or Firm:
Ryuichi Yasuda