JP2006192891A5 - - Google Patents

Claims (8)

A first nozzle array in which nozzles for ejecting first ink droplets are arranged along a predetermined direction, and a nozzle for ejecting a second ink droplet in a larger amount than the first ink droplets The recording medium ejects ink droplets from the recording means while scanning a recording means having at least second nozzle arrays arranged along a predetermined direction in a direction intersecting the predetermined direction. In an ink jet recording apparatus that performs recording in band units on the top,
Based on the number of the first ink droplets ejected in a single band, said to at least a portion of the discharge predetermined position of the first ink droplet definitive raster located at the end of the band first an ink jet recording apparatus characterized by the nozzles of the second nozzle array comprises control means Ru is discharging the second ink drop. A first nozzle array in which nozzles for ejecting first ink droplets are arranged along a predetermined direction, and a nozzle for ejecting a second ink droplet in a larger amount than the first ink droplets The recording medium ejects ink droplets from the recording means while scanning a recording means having at least second nozzle arrays arranged along a predetermined direction in a direction intersecting the predetermined direction. In an ink jet recording apparatus that performs recording in band units on the top,
Based on the number of the first ink droplets ejected to a single band, at least a part of the planned ejection position of the first ink droplet ejected to the raster located at the end of the single band and control means for controlling whether to discharge the second ink droplets from the nozzles of the second nozzle array with respect to,
An ink jet recording apparatus comprising: A first nozzle array in which nozzles for ejecting first ink droplets are arranged along a predetermined direction, and a nozzle for ejecting a second ink droplet in a larger amount than the first ink droplets The recording medium ejects ink droplets from the recording means while scanning a recording means having at least second nozzle arrays arranged along a predetermined direction in a direction intersecting the predetermined direction. In an ink jet recording apparatus that performs recording in band units on the top,
Determining means for determining whether the number of the first ink droplets ejected to a single band exceeds a threshold;
If the number of the first ink droplet is determined to exceed the threshold, at least a portion of the discharge predetermined position of the first ink droplet definitive raster located at the end of the single band On the other hand, control means for discharging the second ink droplets from the nozzles of the second nozzle row ;
An ink jet recording apparatus comprising: Raster located at the end is an ink jet recording apparatus according to any one of claims 1 to 3, characterized in that the endmost raster positioned at the outermost end of the band. Raster to any one of claims 1 to 3, characterized in that a raster that is located in the vicinity of the endmost raster and endmost raster located in the outmost portion of the band located at the end The ink jet recording apparatus described.   When the control means causes the second ink droplet to be ejected to at least a part of a first ink droplet ejection scheduled position in the raster located at the end portion, the second ink droplet is ejected. The ink jet recording apparatus according to claim 1, wherein the first ink droplet is not ejected to the intended ejection position.   The inkjet recording apparatus according to claim 1, wherein at least a part of the scheduled ejection positions is all of the scheduled ejection positions. The control means, instead of ejecting the first ink droplets, to the number of positions corresponding to a predetermined ratio of the number of planned ejection positions of the first ink droplets in the endmost raster, For a number of positions corresponding to a ratio lower than the predetermined ratio of the number of planned ejection positions of the first ink drops in a raster located in the vicinity of the endmost raster. 6. The ink jet recording apparatus according to claim 5, wherein the second ink droplets are ejected instead of ejecting the first ink droplets.