Patent ID: 11919296
Assignee: SEIKO EPSON CORPORATION
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A printing apparatus comprising:
a head including a plurality of nozzles configured to discharge liquid to a medium;
an abnormal nozzle detection unit configured to detect an abnormal nozzle having a discharging defect among the plurality of nozzles;
a contact detection unit configured to detect contact between the head and the medium;
an ejection unit configured to perform an ejection operation of ejecting the liquid from the plurality of nozzles; and
a control unit, wherein
the control unit executes the ejection operation when the abnormal nozzle is detected and the contact between the head and the medium is detected,
the control unit executes complementary printing of complementing the abnormal nozzle when the abnormal nozzle is detected and the contact between the head and the medium is not detected, and
the contact detection unit is provided upstream or downstream of the head along a conveyance direction in which the medium is conveyed.