Dot recording with plural nozzle groups

Details Dot recording with plural nozzle groups Dot recording with plural nozzle groups

1999-02-12

2000-12-12

Nguyen, Thinh

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 41, 347 12, 347 9, 347 16, B41J 2145, B41J 215, B41J 2938

Patent

active

061588415

ABSTRACT:
A plurality of nozzles in use are classified into M nozzle groups, each nozzle group including Neff nozzles, where Neff is an integer of not less than 2 and M is an integer of not less than 2. A plurality of dot positions on each raster line are also classified into M different types of dot positions. The Neff nozzles included in each nozzle group execute dot recording at one identical type of dot positions, whereas the different nozzle groups respective execute dot recording at different types of dot positions. A variety of methods are applicable for the nozzle classification. One available method classifies the plurality of nozzles into the M nozzle groups that are sequentially aligned in a sub-scanning direction to be separated from each other. In another available method, the plurality of nozzles are sequentially allocated to the M element groups one by one along the sub-scanning direction

REFERENCES:
patent: 4198642 (1980-04-01), Gamblin
patent: 4967203 (1990-10-01), Doan et al.

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