Ink jet recording apparatus

Claim 2

A recording apparatus according to Claim 1, wherein said recording apparatus is provided with ink recording means for energizing electrothermal transducers in accordance with recording signals to generate film boiling in ink by thermal energy generated by said electrothermal transducers to eject ink for performing recording.

Claim 3

A recording apparatus according to Claim 2, wherein said ink recording means contains ink used for recording.

Claim 4

A recording apparatus comprising the following: a conveying mechanism for conveying a recording medium; a carriage for carrying a recording head for performing recording by ejecting ink from a plurality of discharging ports onto said recording medium in the direction intersecting the conveying direction of said recording medium; and a control mechanism for setting plural discharging ports for a plurality of discharging groups to select the conveying amount of the recording medium in accordance with the discharging groups to be used for recording.

Claim 5

A recording apparatus according to Claim 4, wherein said recording head performs recording by energizing electrothermal transducers in accordance with recording signals to eject ink for recording by utilizing film boiling generated in the ink by thermal energy generated by said electrothermal transducers.

Claim 6

A recording apparatus according to Claim 4, wherein said ink recording head contains ink used for recording.

Claim 7

An ink jet recording apparatus comprising the following: a conveying mechanism for conveying a recording medium; a carriage for carrying an ink jet recording head having a plurality of discharging ports arranged substantially in parallel with the conveying direction of said recording medium in the direction intersecting the conveying direction of said recording medium; and a control mechanism for setting plural discharging ports for a plurality of discharging groups to select the conveying amount of the recording medium in accordance with the discharging groups to be used for recording.

Claim 8

An ink jet recording apparatus according to Claim 7, wherein said ink jet recording head performs recording by energizing electrothermal transducers in accordance with recording signals to eject ink for recording by utilizing film boiling generated in the ink by thermal energy generated by said electrothermal transducers.

Claim 9

An ink jet recording apparatus according to Claim 7, wherein said ink jet recording head contains ink used for recording.

Claim 10

An ink jet recording apparatus comprising the following: a conveying mechanism for conveying a recording medium; a carriage for carrying an ink jet recording head, having a plurality of discharging ports arranged substantially in parallel with the conveying direction of said recording medium, in the direction intersecting the conveying direction of said recording medium; and a control mechanism arranged with plural discharging ports for a plurality of discharging groups to select the conveying amount for a recording medium in accordance with the discharging groups to be used for recording, there being present as mixture in said control mechanism the line on which the recording is performed using the discharging port located furthest on the downstream side in the conveying direction of said recording medium in response to the recording signal of the recording signals in one scanning, which is located furthest on the downstream side of the said recording medium, and the line on which the recording is performed using the discharging port located furthest on the upstream side in the conveying direction of the said recording medium in response to the recording signal of the recording signals in one scanning, which is located furthest on the upstream side of said recording medium.

Claim 11

An ink jet recording apparatus according to Claim 10, wherein said ink jet recording head performs recording by energizing electrothermal transducers in accordance with recordings signals to eject ink for recording by utilizing film boiling generated in the ink by thermal energy generated by said electrothermal transducers.

Claim 12

An ink jet recording apparatus according to Claim 11, wherein said ink jet recording head contains ink used for recording.

Claim 13

A recording method for performing recording by ejecting ink from a plurality of discharging ports onto a recording medium conveying in a given direction, comprising the following process of: setting plural discharging ports for a plurality of discharging groups to select the conveying amount of the recording medium in accordance with the discharging groups to be used for recording.

Claim 14

A recording method for performing recording by ejecting ink from a plurality of discharging ports onto a recording medium being conveyed in a given direction, which comprises the following process of: arranging plural discharging ports for a plurality of discharging groups; giving the positional interval between the discharging port group N a on the downstream side in the conveying direction of the recording medium and the discharging port group N b on the upstream side in the conveying direction of the recording medium as L n , and the line pitch as L p ; setting the conveying amount of the said recording medium at L p - L n when the discharging port group to be used for recording is switched over from the said discharging port group N a to the said discharging port group N b ; and setting the conveying amount of the said recording medium at L p + L n when the discharging port group to be used for recording is switched over from the said discharging port group N b to the said discharging port group N a .