Light emitting control device and method thereof for light emitting diode print head
First Claim
1. A light emitting control device for a light emitting diode print head comprising:
- a control unit;
a pulse-mask unit, controlled by the control unit, outputting n clock signals in sequence to the light emitting diode print head, n being a positive integer;
a strobe unit, controlled by the control unit, outputting a strobe signal to the light emitting diode print head to switch on the light emitting diode print head; and
a data output unit, controlled by the control unit, outputting a print data signal to the light emitting diode print head;
wherein when the pulse-mask unit outputs a k-th clock signal of the n clock signals, the pulse-mask unit delays the k-th clock signal for a predetermined time, and the data output unit pauses outputting the print data signal, after the predetermined time, the pulse-mask unit and the data output unit continues to output the rest of the clock signals and the print data signal, k is a positive integer smaller than or equal to n.
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Abstract
A light emitting control device for a light emitting diode print head includes a control unit, a pulse-mask unit, a strobe unit and a data output unit. The pulse-mask unit outputs n clock signals in sequence to a light emitting diode print head. The strobe unit outputs a strobe signal to the light emitting diode print head, so as to switch on the light emitting diode print head. The data output unit outputs a print data signal to the light emitting diode print head. When the pulse-mask unit outputs a k-th clock signal of the n clock signals, the pulse-mask unit delays the k-th clock signal for a predetermined time, and the data output unit pauses outputting the print data signal. After the predetermined time, the pulse-mask unit and the data output unit continue to output the rest of the clock signals and the print data signal.
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Citations
10 Claims
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1. A light emitting control device for a light emitting diode print head comprising:
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a control unit; a pulse-mask unit, controlled by the control unit, outputting n clock signals in sequence to the light emitting diode print head, n being a positive integer; a strobe unit, controlled by the control unit, outputting a strobe signal to the light emitting diode print head to switch on the light emitting diode print head; and a data output unit, controlled by the control unit, outputting a print data signal to the light emitting diode print head; wherein when the pulse-mask unit outputs a k-th clock signal of the n clock signals, the pulse-mask unit delays the k-th clock signal for a predetermined time, and the data output unit pauses outputting the print data signal, after the predetermined time, the pulse-mask unit and the data output unit continues to output the rest of the clock signals and the print data signal, k is a positive integer smaller than or equal to n. - View Dependent Claims (2, 3, 4, 5)
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6. A light emitting control method for a light emitting diode print head comprising steps of:
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outputting n clock signals in sequence to the light emitting diode print head, n being a positive integer; outputting a strobe signal to the light emitting diode print head to switch on the light emitting diode print head; outputting a print data signal to the light emitting diode print head; delaying a k-th clock signal of the n clock signals for a predetermined time, and pausing outputting the print data signal, k being a positive integer smaller than or equal to n; and after the predetermined time, continuing to output the rest of the clock signals and the print data signal. - View Dependent Claims (7, 8, 9, 10)
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Specification