Method of driving print head and image forming apparatus employing the same
AssigneeSamsung Electronics Co., Ltd.
InventorJin-tae Chung
Life of this patent
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Abstract
A method of driving a print head and an image forming apparatus employing the same are provided, wherein recording elements of the print head are divided into n groups and are driven to print an image on a medium, wherein recording elements from the respective n groups, that is, one recording element from each of the n groups, are simultaneously driven and a driving order of the recording elements is arranged such that printing positions of the recording elements in each group form a plurality of oblique lines as a medium is fed. Accordingly, the plurality of recording elements, which are divided into a plurality of phases, are non-sequentially driven and therefore, the power consumption due to the driving of the recording elements and degradation of print quality can be reduced.
Claims15
A method of driving recording elements of a print head for printing an image on a medium, comprising the steps of:
- dividing the recording elements into n groups;
- and
- substantially simultaneously driving one recording element from each of the n groups in a non-sequential order, wherein a pulse width of each driven element is controlled by a single strobe, such that printing positions of the recording elements in each group form a plurality of oblique lines on a medium.
A computer readable recording medium having embodied thereon a computer program for driving recording elements of a print head for printing an image on a medium, the computer readable recording medium comprising:
- a first set of instructions for dividing the recording elements into n groups;
- and
- a second set of instructions for substantially simultaneously driving one recording element from each of the n groups in a non-sequential order, wherein a pulse width of each driven element is controlled by a single strobe, such that printing positions of the recording elements in each group form a plurality of oblique lines on a medium.
An image forming apparatus for printing an image using a print head including a plurality of recording elements, the image forming apparatus comprising:
- a data inputting unit for receiving image data to be printed;
- a controlling unit for generating and outputting a control signal for driving the recording elements according to the received image data;
- and
- a print head comprising a plurality of recording elements divided into n groups for printing an image on a medium by driving the recording elements in response to the control signal,
- wherein the controlling unit is configured to generate the control signal for substantially simultaneously driving one recording element from each of the n groups in a non-sequential order, and a pulse width of each driven element is controlled by a single strobe, such that printing positions of the recording elements driven in each group form a plurality of oblique lines on the medium.
Dependencies are inferred from the claim text.