US 9,738,092 B2 · Image recording apparatus and recording head driving method

Abstract

An image recording apparatus includes: a plurality of recording heads driven on a basis of drive waveform data; a data storage that retains parameter sets corresponding to the respective recording heads; a simultaneously driven nozzle count detector that detects, for each of the recording heads, a simultaneously driven nozzle count that represents a count of nozzles to be driven at an identical drive timing based on image data to be recorded on a recording medium; a correction parameter selector that selects, for each of the recording heads, a correction parameter corresponding to the detected simultaneously driven nozzle count from among a plurality of correction parameters included in the parameter set corresponding to the recording head; and a drive waveform data generator that corrects reference waveform data using the correction parameter selected for each of the recording heads and generates the drive waveform data for each of the recording heads.

Claims17

Dependent claims

An image recording apparatus comprising:

a plurality of recording heads configured to be driven based on drive waveform data, each of the recording heads having unique ejection characteristics respectively;
a data storage configured to retain parameter sets corresponding to the unique ejection characteristics of the respective recording heads;
a simultaneously driven nozzle count detector configured to detect, for each of the recording heads, a simultaneously driven nozzle count that represents a quantity of nozzles to be driven at an identical drive timing based on image data to be recorded on a recording medium;
a correction parameter selector configured to select, for each of the recording heads, a correction parameter from among a plurality of correction parameters included in each of the parameter sets based on the detected simultaneously driven nozzle count;
and
a drive waveform data generator configured to generate the drive waveform data for each of the recording heads by correcting reference waveform data using the correction parameter selected for each of the recording heads.

3 more elements

A method performed in an image recording apparatus, the image recording apparatus including a plurality of recording heads configured to be driven based on drive waveform data, each of the recording heads having unique ejection characteristics respectively;

and a data storage configured to retain parameter sets corresponding to the unique ejection characteristics of the respective recording heads, the method comprising:
detecting, for each of the recording heads, a simultaneously driven nozzle count that represents a quantity of nozzles to be driven at an identical drive timing based on image data to be recorded on a recording medium;
selecting, for each of the recording heads, a correction parameter from among a plurality of correction parameters included in each of the parameter set based on the detected simultaneously driven nozzle count;
and
correcting reference waveform data using the correction parameter selected for each of the recording heads to generate the drive waveform data for each of the recording heads.

2 more elements

Dependencies are inferred from the claim text.

Image recording apparatus and recording head driving method

Life of this patent

Image recording apparatus and recording head driving method

Life of this patent

Abstract

Claims17