JP2000135784A5

JP2000135784A5 -

Info

Publication number: JP2000135784A5
Application number: JP1999235936A
Authority: JP
Filing date: 1999-08-23
Publication date: 2005-04-21
Anticipated expiration: 2019-08-23

Claims

A first recording head having a plurality of recording elements;
A second recording head having a plurality of recording elements for recording the same color as the first recording head;
A recording method for recording on a recording medium using
A first recording step by scanning the first recording head;
A second recording step by causing the first recording head to scan in a direction opposite to the first recording step;
A third recording step by scanning the second recording head;
A fourth recording step by causing the second recording head to scan in a direction opposite to the third recording step;
A conveying step of conveying the recording medium between the first and second, third and fourth recording steps;
Have
A recording method comprising: forming an image of a predetermined area in a band formed by one scan by all the recording elements of the first or second recording head through the first to fourth recording steps. .

A first recording head having a plurality of recording elements;
A second recording head having a plurality of recording elements for recording the same color as the first recording head;
A recording method for recording on a recording medium by reciprocating scanning the first and second recording heads using
Of all the image data to be recorded on the recording medium, the image data to be recorded in a predetermined area in a band formed by one scan by all the recording elements of the first or second recording head A distribution step of distributing the first data for recording with one recording head and the second data for recording with the second recording head;
Third data for forward recording of the first recording head and fourth data for backward recording are extracted from the first data, and fifth data for forward recording of the second recording head is extracted from the second data. An extraction step of extracting sixth data for return path recording;
A recording method characterized by comprising:

The recording method according to claim 2, further comprising a transporting step of transporting the recording medium between each scan of the first and second recording heads.

The recording method according to claim 1 or 3, wherein the conveyance amount in the conveyance step is half of the recording width of the band.

4. The recording method according to claim 1, wherein the second recording head is located downstream of the first recording head in a transport direction of the recording medium.

If the distance between the first recording head and the second recording head is D and the recording width of the band is H, there is a relationship of D = (2n + 1) × H / 2 (n is an integer). 6. The recording method according to claim 5, wherein

The recording method according to claim 1, wherein the second recording head is located downstream of the first recording head in the scanning direction of the first recording head.

The recording method according to claim 1, wherein the recording element includes an ejection port that ejects ink.

The recording method according to claim 2, wherein the distribution step distributes the image data alternately as the first data and the second data.

3. The recording method according to claim 2, wherein the extraction step extracts the third, fourth, fifth, and sixth data from the first and second data based on a predetermined mask pattern, respectively. .

Recording apparatus for recording on a recording medium by reciprocating scanning a first recording head having a plurality of recording elements and a second recording head having a plurality of recording elements for recording the same color as the first recording head Because
Distribution means for distributing all image data to be recorded on the recording medium into first data for recording by the first recording head and second data for recording by the second recording head;
Third data for forward recording of the first recording head and fourth data for backward recording are extracted from the first data, and fifth data for forward recording of the second recording head is extracted from the second data. Extraction means for extracting sixth data for return trip recording;
Have
An image of a predetermined area in a band formed by one scan by all the printing elements of the first or second printing head is used to store the third data, the fourth data, the fifth data, and the sixth data. 4. A recording apparatus for performing four-pass recording formed by recording.

A conveying unit that conveys the recording medium between the scans of the first and second recording heads;
The recording apparatus according to claim 11 , wherein a conveyance amount in the conveyance unit is half of a recording width of the band.

12. The distribution unit according to claim 11 , wherein when all image data is divided into recording data and non-recording data, the recording data is equally distributed to the first data and the second data. Or the recording apparatus of 12 .

The extraction means includes
A first mask that predetermines an area allocated to third data and an area allocated to fourth data in the first data;
A second mask that predetermines an area allocated to the fifth data and an area allocated to the sixth data in the second data;
14. The recording apparatus according to claim 11 , wherein the data is extracted by using the method.

The extraction means includes
When extracting the third data from the first data, based on the first mask, convert the image data of the area allocated to the fourth data into non-recorded data,
When extracting the fourth data from the first data, based on the first mask, the image data of the area allocated to the third data is converted into non-recorded data,
When extracting the fifth data from the second data, based on the second mask, the image data of the area allocated to the sixth data is converted into non-recorded data,
15. The method according to claim 14 , wherein when extracting the sixth data from the second data, the image data of the area allocated to the fifth data is converted into non-recorded data based on the second mask. The recording device described.

The extraction means includes
When extracting the third data from the first data, based on the first mask, without reading the image data of the area allocated to the fourth data,
When extracting the fourth data from the first data, based on the first mask, does not read the image data of the area allocated to the third data,
When extracting the fifth data from the second data, based on the second mask, without reading the image data of the area allocated to the sixth data,
15. The recording according to claim 14 , wherein when extracting the sixth data from the second data, image data of an area allocated to the fifth data is not read based on the second mask. apparatus.

Each of the first and second recording heads has a plurality of recording elements;
Time-division driving means for simultaneously driving every 2 n printing elements among the plurality of printing elements,
Continuing from the driving of the first recording element group, it is counted from any one of the first recording element groups ((2 n power) / 2 + 1) + (2 n power) × i th position. The recording apparatus according to claim 11 , further comprising time-division driving means for driving the second recording element group. However, n and i are integers, and n ≧ 0.

Two-pass printing can be performed in which the first data is recorded by unidirectional scanning of the first recording head, and the second data is recorded by unidirectional scanning of the second recording head;
18. The recording apparatus according to claim 11, further comprising selection means for selecting a 2-pass mode for performing the 2-pass recording or a 4-pass mode for performing the 4-pass recording.

Scanning control means for switching the scanning speed of the recording head according to the mode selected by the selection means;
A conveyance control means for controlling the conveyance of the recording medium according to the mode selected by the selection means;
Image processing means for switching the processing speed / transfer time of the image data in accordance with the mode selected by the selection means;
Divided drive control means for switching the divided drive control of the recording head according to the mode selected by the selection means;
The recording apparatus according to claim 18 , further comprising:

A first recording head having a plurality of recording elements;
A second recording head having a plurality of recording elements for recording the same color as the first recording head;
A storage medium storing a control program for a recording apparatus that records on a recording medium by reciprocatingly scanning the first and second recording heads,
The control program is stored in the recording device.
Of all the image data to be recorded on the recording medium, the image data to be recorded in a predetermined area in a band formed by one scan by all the recording elements of the first or second recording head A distribution step of distributing the first data for recording with one recording head and the second data for recording with the second recording head;
Third data for forward recording of the first recording head and fourth data for backward recording are extracted from the first data, and fifth data for forward recording of the second recording head is extracted from the second data. An extraction step of extracting sixth data for return path recording;
The computer-readable storage medium characterized by performing this.