The present application is based on, and claims priority from JP Application Serial Number 2019-014960, filed Jan. 31, 2019, the disclosure of which is hereby incorporated by reference herein in its entirety.

BACKGROUND

1. Technical Field

The present disclosure relates to a recording device and a recording method.

2. Related Art

While a large number of nozzles are provided in a recording head included in an ink jet printer, the nozzle may become clogged due to an increase in viscosity of ink or inclusion of air bubbles. When the nozzle become clogged, the printer does not actually eject ink, or does not eject a required amount of ink, even though the printer controls the ejection of the ink from the nozzle, and a defective recording point of a dot or a “missing dot” occurs in a recording result on a recording medium. The missing dot is problematic when obtaining good recording quality, so an inspection of the missing dot is required.

As the related art, a liquid ejecting device having a test pattern forming unit with which a test pattern is formed of a liquid ejected by a plurality of ejecting nozzles of a liquid ejecting head is disclosed (see JP-A-2005-35102).

When detecting a missing dot from test pattern recording results, the printer determined that continuation of recording is unsuitable and that processing to prevent reduction in recording quality due to clogging of the nozzle is required. Here, the “processing to prevent reduction in recording quality” refers to, for example, replacement of a recording head, cleaning of the recording head, and the like. However, in a case of a printer having a plurality of nozzle rows that eject ink of an identical color, even when some nozzles are clogged, there is a case that recording can be continued without problems. As such, although the printer can actually continue recording, there was a possibility that the printer determined from test pattern recording results that continuation of the recording was unsuitable.

What is needed is a mechanism to provide a test pattern that is suitable to prevent the determination from being made that continuation of recording is unsuitable when the recording can be actually continued.

SUMMARY

A recording device includes a recording head in which a plurality of nozzle rows are arranged in a predetermined direction that include a first nozzle row including a plurality of nozzles for ejecting ink having a predetermined color, and a second nozzle row including a plurality of nozzles for ejecting ink having an identical color to the predetermined color, and a control unit configured to control ejection of ink by the nozzle, wherein the control unit, when a test pattern for an inspection of a missing dot due to an ejecting defect of the nozzle is recorded on a recording medium, records a dot pattern, that is an individual element that forms the test pattern, so that ink ejected from a nozzle of the first nozzle row, and ink ejected from a nozzle of the second nozzle row overlap.

