Image forming apparatus and method of generating output signal thereof
AssigneeSamsung Electronics Co., Ltd.
InventorSang-youn SHIN
Life of this patent
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Abstract
An image forming apparatus includes a clock generation unit to generate a plurality of unit pulse signals having frequencies which are multiples of a reference clock signal when print data having a higher resolution than a reference resolution is inputted to the image forming apparatus; and an output signal generation unit to divide the print data into plural units by applying the plurality of unit pulse signals to the print data, to detect successive pixels neighboring each other at a boundary between two of the respective units of print data, and to generate an output signal so that the successive pixels detected at the boundary form one dot.
Claims21
An image forming apparatus comprising:
- a clock generation unit to generate a plurality of unit pulse signals having frequencies which are multiples of a reference clock signal when print data having a higher resolution than a reference resolution is inputted to the image forming apparatus;
- and
- an output signal generation unit to divide the print data into plural units by applying the plurality of unit pulse signals to the print data, to detect successive pixels neighboring each other at a boundary between two of the respective units of print data, and to generate an output signal so that the successive pixels detected at the boundary form one dot.
A method of generating an output signal, comprising:
- generating a plurality of unit pulse signals having frequencies which are multiples of a reference clock signal when print data having a higher resolution than a reference resolution is inputted;
- dividing the print data into plural units by applying the plurality of unit pulse signals to the print data;
- detecting successive pixels neighboring each other at a boundary between two of the respective units of print data;
- and
- generating an output signal so that the successive pixels detected at the boundary form one dot.
An image forming apparatus comprising:
- an image controller to generate an output signal by applying a masking signal to print data having a higher resolution than a reference resolution when the print data is inputted to the image forming apparatus;
- and
- an engine unit to print successive pixels neighboring each other at a boundary between respective units of the print data, in accordance with the generated output signal, as one dot.
An image forming apparatus comprising:
- an output signal generation unit to detect successive pixels neighboring each other at a boundary between two respective units of print data, and to generate a masking signal covering an area which would be empty space between two dots which would be formed according to the two pixels, so that the successive pixels detected at the boundary form one dot,
- wherein each unit of print data has more than one pixel per period of a reference clock signal used to divide the input print data into the print units.
An image forming method, comprising:
- detecting successive pixels neighboring each other at a boundary between two respective units of print data;
- and
- generating a masking signal covering an area which would be empty space between two dots which would be formed according to the two pixels, so that the successive pixels detected at the boundary form one dot,
- wherein each unit of print data has more than one pixel per period of a reference clock signal used to divide the input print data into the print units.
An image forming apparatus comprising:
- a clock generation unit to generate a plurality of unit pulse signals to detect successive pixels neighboring each other at a boundary between two units of print data inputted to the image forming apparatus;
- and
- an output signal generation unit to apply a masking signal to the input print data to remove a brightness deviation between dots corresponding to the input print data, wherein the masking signal is based on a detection result of the plurality of unit pulse signals.
Dependencies are inferred from the claim text.