JP2011037037A5

JP2011037037A5 -

Info

Publication number: JP2011037037A5
Application number: JP2009183893A
Authority: JP
Filing date: 2009-08-06
Publication date: 2012-09-20

Description

すなわち、記録ヘッドを構成する複数の記録素子を分けて得られる複数のセクションにおいて、各セクションを構成する記録素子毎に異なる駆動タイミングを制御可能な画像記録装置であって、入力画像の特徴情報として、該入力画像が網点画像であるか否かを示す情報を取得する取得手段と、前記特徴情報に基づいて、前記記録素子毎の駆動タイミングを設定する設定手段と、前記記録素子毎の駆動タイミングに基づき、前記複数の記録素子のそれぞれを駆動する駆動手段と、を有し、前記設定手段は、前記特徴情報が網点画像である旨を示す場合に、前記セクション内の記録素子数と、前記複数の記録素子の配列方向における前記入力画像の網点周期とが整数倍の関係となり、かつ前記記録ヘッドにおける前記セクションの境界位置を該記録ヘッドが網点の単位マトリクス分移動する毎に変更するように、前記記録素子毎の駆動タイミングを設定することを特徴とする。 Ie upon a plurality of sections obtained by dividing a plurality of printing elements constituting a printing head, a controllable image recording apparatus different drive timing for each recording element constituting each section, features of the input image As information, an acquisition means for acquiring whether the input image is a halftone image, a setting means for setting a drive timing for each recording element based on the feature information, and for each recording element Driving means for driving each of the plurality of recording elements based on the drive timing of the recording element, and the setting means indicates that the characteristic information is a halftone image, and the recording element in the section the the number, the plurality of dot period of the input image in the arrangement direction of the recording element becomes an integral multiple of, and a boundary position of said section in said recording head Recording head to change every time the mobile unit matrix component of the halftone dot, and sets the driving timing of each of the recording elements.

Claims

Oite into sections obtained by dividing a plurality of printing elements constituting a printing head, a controllable image recording apparatus different drive timing for each recording element constituting each section,
Acquisition means for acquiring information indicating whether or not the input image is a halftone image as feature information of the input image;
Setting means for setting drive timing for each recording element based on the feature information;
Driving means for driving each of the plurality of recording elements based on the driving timing for each recording element;
When the setting means indicates that the feature information is a halftone image, the number of recording elements in the section and the halftone dot period of the input image in the arrangement direction of the plurality of recording elements are integer multiples. The drive timing for each recording element is set such that the boundary position of the section in the recording head changes each time the recording head moves by a unit matrix of halftone dots. apparatus.

The acquisition means acquires, as the feature information, information indicating at least one of the number of gradations, periodicity, halftone period, and halftone angle of the input image,
The setting means, when the feature information indicates that the input image is binary, has periodicity, and has dot period and dot angle information, the number of printing elements in the section And a halftone dot period of the input image in the arrangement direction of the plurality of recording elements , and every time the recording head moves by a unit matrix of halftone dots in the boundary position of the section in the recording head. The image recording apparatus according to claim 1, wherein the drive timing for each of the recording elements is set so as to be changed to:

When the characteristic information indicates that the input image is binary and periodic but has no information about halftone dot period and halftone dot angle, the drive timing for each recording element is determined. The image recording apparatus according to claim 1, wherein the frequency characteristic is set so that a low frequency component is smaller than a high frequency component.

The image recording apparatus according to claim 1, wherein the acquisition unit acquires the feature information from information attached to the input image.

4. The image recording apparatus according to claim 1, wherein the acquisition unit acquires the feature information from information input by a user. 5.

The image recording apparatus according to claim 1, wherein the acquisition unit acquires the feature information based on a result of analyzing the input image.

The said setting means changes the boundary position of the said section in the said recording head according to a pass order, when performing the multipass recording by the said recording head. The one of the Claims 1 thru | or 6 characterized by the above-mentioned. Image recording device.

An image recording apparatus capable of controlling drive timing for each of a plurality of recording elements constituting a recording head,
Acquisition means for acquiring, as the feature information of the input image, information indicating whether the input image is a halftone dot image;
Setting means for setting drive timing for each recording element based on the feature information;
Driving means for driving each of the plurality of recording elements based on the driving timing for each recording element;
When the setting means indicates that the feature information is a halftone dot image, the dot discharge timing relative relationship is the same for all of the halftone unit matrices in the input image. An image recording apparatus, wherein a drive timing for each recording element is set.

An image recording apparatus capable of time-division driving that sequentially drives each of a plurality of blocks to which a plurality of recording elements constituting a recording head belong,
Acquisition means for acquiring information indicating whether or not the input image is a halftone image as feature information of the input image;
Setting means for setting drive timing for each recording element based on the feature information;
Driving means for driving each of the plurality of recording elements based on the driving timing for each recording element;
The setting means configures the unit matrix and a block to be driven first in the recording head each time the recording head moves by a unit matrix of halftone dots when the feature information indicates a halftone image. The drive timing for each recording element is set so that the row at the same position among the plurality of rows matches.
An image recording apparatus.

Oite into sections obtained by dividing a plurality of printing elements constituting a printing head, a control method of the controllable image recording apparatus different drive timing for each recording element constituting each section,
An acquisition step of acquiring information indicating whether or not the input image is a halftone image as the feature information of the input image;
A setting step for setting a driving timing for each recording element based on the feature information;
A driving step of driving each of the plurality of recording elements based on a driving timing for each of the recording elements,
In the setting step, when the feature information indicates a halftone image, the number of recording elements in the section and the halftone period of the input image in the arrangement direction of the plurality of recording elements are an integral multiple. And the drive timing for each recording element is set so that the boundary position of the section in the recording head is changed every time the recording head moves by a unit matrix of halftone dots. Control method of recording apparatus.

A control method of an image recording apparatus capable of controlling drive timing for each of a plurality of recording elements constituting a recording head,
An acquisition step of acquiring information indicating whether or not the input image is a halftone image as the feature information of the input image;
A setting step for setting a driving timing for each recording element based on the feature information;
A driving step of driving each of the plurality of recording elements based on a driving timing for each of the recording elements,
In the setting step, when the feature information indicates that the image is a halftone image, the recording element is configured so that the relative relationship of the dot ejection timing is the same for all of the unit matrix of the halftone dot in the input image. Set the drive timing for each
A control method for an image recording apparatus.

A method for controlling an image recording apparatus capable of time-division driving that sequentially drives each of a plurality of blocks to which each of a plurality of recording elements constituting a recording head belongs,
An acquisition step of acquiring information indicating whether or not the input image is a halftone image as the feature information of the input image;
A setting step for setting a driving timing for each recording element based on the feature information;
A driving step of driving each of the plurality of recording elements based on a driving timing for each of the recording elements,
In the setting step, when the characteristic information indicates a halftone dot image, each time the recording head moves by a unit matrix of halftone dots, a block to be driven first in the recording head and the unit matrix are configured. The drive timing for each recording element is set so that the row at the same position among the plurality of rows matches.
A control method for an image recording apparatus.

A computer program for causing a computer to function as each unit of the image recording apparatus according to any one of claims 1 to 9 when executed by the computer.