Inkjet printer and printing system thereof and method of compensating for deteriorated nozzle
AssigneeSamsung Electronics Co., Ltd.
InventorSeung-Don Lee
Life of this patent
Estimating the term…
Abstract
An inkjet printer, a system thereof and a method of compensating for deteriorated nozzles. The inkjet printer has an input unit to select a printing workload share for nozzle groups with respect to an image writing unit area, each nozzle group including a plurality of nozzles; and a control unit to control the print head according to the printing workload share selected by the input unit, thereby causing the image data to be printed onto the recording medium. Since the printing workload share for the defective nozzles is reduced, print quality deterioration can be prevented without having to replace a print head.
Claims26
An inkjet printer to print image data on an image writing unit area of a recording medium, the inkjet printer comprising:
- a print head having a plurality of nozzles arrayed in nozzle groups to jet ink therethrough;
- an input unit to select a printing workload share for each of the nozzle groups with respect to the image writing unit area, the nozzle groups each comprising a number of the plurality of the nozzles;
- and
- a control unit to control the print head according to the printing workload share selected by the input unit, thereby causing the image data to be printed onto the recording medium.
An inkjet printer to print image data on an image writing unit area of a recording medium, the inkjet printer comprising:
- a print head having a plurality of nozzles arrayed in nozzle groups to jet ink therethrough;
- an input unit comprising a printing workload share adjusting mode key to inquire about a presence of a defective one of the nozzles in the nozzle groups and to adjust a printing workload share for the nozzle groups according to a checking result in the image writing unit area;
- a nozzle state analyzing unit to analyze the defective one of the nozzles;
- and
- a control unit to control the nozzle state analyzing unit to analyze the presence of the defective nozzle when the printing workload share adjusting mode key is selected,
- the control unit to adjust the printing workload share of the nozzle groups so that one of the nozzle groups having a greater number of the defective nozzles has a lower printing workload share than another one of the nozzle groups in regard to the image writing unit area,
- the control unit to control the print head according to the adjusted printing workload share when the image data is printed on the recording medium.
An inkjet printing system comprising:
- a print head having a plurality of nozzles arranged in nozzle groups to jet ink therethrough;
- an inkjet printer that prints image data onto a recording medium by controlling the print head;
- and
- a computer connected to the inkjet printer, the computer comprising a printer driver to provide a menu to variably select a printing workload share for each of the nozzle groups, and to transmit the information about the selected printing workload share of the nozzle groups to the inkjet printer such that the print head is driven according to the selected printing workload share.
A method of compensating for deteriorated nozzles of an inkjet printer, comprising:
- inquiring about a presence of defectiveness in a plurality of nozzles that jet an ink therethrough, the nozzles arranged in nozzle groups;
- determining a printing workload share for each of the nozzle groups according to the inquiring;
- and
- printing image data onto a recording medium while controlling each of the nozzle groups according to the determined printing workload share.
A method of compensating for deteriorated nozzles of an inkjet printer, comprising:
- determining a presence of a printing workload share adjusting mode;
- printing a test pattern onto a recording medium when the printing workload share adjusting mode is determined;
- adjusting a printing workload share of each of a plurality of nozzle groups with respect to an image writing unit area when a serial number of a defective nozzle of the nozzle groups is input based upon the test pattern, such that one of the nozzle groups having the defective nozzle corresponding to the input serial number has a lower printing workload share than other ones of the nozzle groups;
- and
- printing image data onto the recording medium while controlling the nozzle groups according to the adjusted printing workload share.
An apparatus to print data on a recording medium, the apparatus comprising:
- a head having a plurality of nozzles arrayed in nozzle groups to print the data, a printing workload share for each of the nozzle groups being based on a number of deteriorated nozzles in the nozzle groups.
An apparatus to print data on a recording medium, the apparatus comprising:
- a print head having a plurality of nozzles arrayed in nozzle groups to print the data;
- a first determination unit to determine a deteriorated status of the nozzles;
- and
- a second determination unit to determine a printing workload share for each of the nozzle groups based on the status determined by the first determination unit.
A method of printing data on a recording medium, the method comprising:
- ejecting ink through a plurality of nozzles arrayed in nozzle groups;
- determining a deteriorated status of the nozzles;
- and
- determining a printing workload share for each of the nozzle groups based on the determining of the deteriorated status.
Dependencies are inferred from the claim text.