Seiko Epson Corporation

Yuichi Yoneyama

Akito Sato

Yuko Yamamoto

Atsushi Natsuno

Tomoaki Kimura

A printing apparatus including: a first nozzle group including a first and third nozzles which ejects a first liquid; and a second nozzle group including a second nozzle which ejects a second liquid, in which, when an ejection state of the liquid ejected from the one nozzle which belongs to the first nozzle group is abnormal, complementation is performed using complementation modes of a first complementation mode that increases the amount of a liquid to be ejected from the first nozzle instead of allowing the one nozzle to eject the liquid, a second complementation mode that increases the amount of the liquid to be ejected from the second nozzle instead of allowing the one nozzle to eject the liquid, and a third complementation mode that increases the amount of the liquid to be ejected from the third nozzle instead of allowing the liquid to be ejected from the one nozzle.

Printing apparatus, method of controlling printing apparatus, and control program of printing apparatus

A liquid ejecting apparatus including: a first nozzle group including first nozzles which eject a liquid with a first color absorbing light having a predetermined wavelength, a second nozzle group including second nozzles which eject a liquid with a second color absorbing light having a predetermined wavelength, and Q (Q is a natural number satisfying '2&#x2266;Q') nozzle groups including nozzles which eject a liquid other than the liquid having the first color and the liquid having the second color; the first nozzle group is provided in a first area, the second nozzle group is provided in a second area, and the Q nozzle groups are not provided between the first area and the second area but provided on the upstream side or the downstream side of the first area and the second area.

Liquid ejecting apparatus, method of controlling liquid ejecting apparatus, and program for controlling liquid ejecting apparatus

A apparatus including a head unit that includes first nozzles which eject a first liquid, second nozzles which eject a second liquid, third nozzles which eject a third liquid; and a control unit that controls driving of the head unit, in which, when an amount of the first liquid to be ejected from the first nozzles in order to form an image on the medium is a first ejection amount and an ejection state of the liquid ejected from the first nozzles is abnormal, the control unit increases the amount of the second liquid ejected from the second nozzles by a second ejection amount which is smaller than the first ejection amount and increases the amount of the third liquid ejected from the third nozzles by a third ejection amount which is smaller than the first ejection amount instead of allowing the first nozzles to eject the first liquid.

Using detectors, skewed conveyance of sheet media such as checks can be detected accurately regardless of whether part of the conveyed medium is folded over. The biased feed detection unitof a check processing deviceaccording to at least one embodiment of the invention determines the lengths Land Lof the conveyed check(STand ST) and the thickness of a folded part of the check(ST) at different positions perpendicular to the transportation direction based on the output of a paper thickness detectorand a length detectordisposed to the check transportation path. The folded length Lis then subtracted from the difference &#x394;L of the detected lengths to acquire a corrected difference &#x394;L(ST). If the corrected difference &#x394;Lis less than or equal to a threshold value D, the medium is determined to be conveyed normally (ST). If the corrected difference &#x394;Lexceeds the threshold value D, the medium is determined to be skewed (ST). Skewed conveyance of the checkcan thus be accurately determined.

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Nagano, Japan

Yuichi Yoneyama