KR900000797A - LED printhead light output correction method and device - Google Patents

LED printhead light output correction method and device Download PDF

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Publication number
KR900000797A
KR900000797A KR1019880007119A KR880007119A KR900000797A KR 900000797 A KR900000797 A KR 900000797A KR 1019880007119 A KR1019880007119 A KR 1019880007119A KR 880007119 A KR880007119 A KR 880007119A KR 900000797 A KR900000797 A KR 900000797A
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South Korea
Prior art keywords
unit
correction data
light
section
led printhead
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KR1019880007119A
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Korean (ko)
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KR910001316B1 (en
Inventor
양창진
정승식
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강진구
삼성반도체통신 주식회사
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Priority to KR1019880007119A priority Critical patent/KR910001316B1/en
Publication of KR900000797A publication Critical patent/KR900000797A/en
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Publication of KR910001316B1 publication Critical patent/KR910001316B1/en

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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00Arrangements for image or video recognition or understanding
    • G06V10/88Image or video recognition using optical means, e.g. reference filters, holographic masks, frequency domain filters or spatial domain filters
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K15/00Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
    • G06K15/02Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers
    • G06K15/12Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Optics & Photonics (AREA)
  • General Engineering & Computer Science (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
  • Led Devices (AREA)

Abstract

내용 없음.No content.

Description

LED프린터헤드 광출력 보정방법 및 장치LED printhead light output correction method and device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 일반적인 LED프린터헤드의 구동회로도.1 is a driving circuit diagram of a general LED printer head.

제3도는 본 발명 LED프린터헤드 광출력 보정장치의 블럭도.Figure 3 is a block diagram of the LED printhead optical output correction device of the present invention.

제7도는 본 발명 LED프린터헤드 광출력 보정장치의 동작과정을 나타낸 플로우챠트.7 is a flowchart showing the operation of the LED printhead optical output correction device of the present invention.

Claims (3)

수십개의 발광다이오드(LED)를 갖는 칩을 수십개 어레이로 구성된 LED프린터헤드부(2)의 발광량을 보정하는 LED프린터헤드 광출력 보정방법에 있어서, 상기 LED프린터헤드(2)로부터 발광되는 광량을 광검출부(3)로 검출하고 이 검출된 광량신호를 증폭부(4)로서 증폭한 수단과 이 증폭된 광량신호를 비교 및 보정데이타 발생부(5)로서 비교 및 보정하여 중앙제어부(8)의 쓰기제어신호와 클럭부(11)의 클럭신호에 의하여 카운터부(7)의 번지지정에 따라 메모리부(6)에 보정데이타를 기억시키는 수단과 이어서 중앙제어부(8)의 읽기제어신호에 의하여 상기 메모리부(6)에 저장된 보정데이타를 롬기록부(10)에 전송하도록 한 수단으로 이루어진 것을 특징으로 하는 LED프린터헤드 광출력보정방법.In the LED printhead light output correction method of correcting the light emission amount of the LED printhead unit 2 having dozens of light emitting diodes (LEDs) composed of dozens of arrays, the amount of light emitted from the LED printhead 2 is lighted. Means for detecting the detected light quantity signal by the detecting section 3 and amplifying the detected light quantity signal as the amplifying section 4 and comparing and correcting the amplified light quantity signal as the comparison and correction data generating section 5 to write the central control section 8. Means for storing the correction data in the memory section 6 according to the addressing of the counter section 7 by the control signal and the clock signal of the clock section 11, and then by the read control signal of the central control section 8; LED printhead optical output calibration method, characterized in that the means made for transmitting the correction data stored in the section (6) to the ROM recording section (10). 수십개의 발광다이오드(LED)를 갖는 칩을 수십개 어레이로 국성된 LED프린터헤드부(2)의 발광량을 보정하는 LED프린터헤드 광출력 보정장치에 있어서, 스위치부(1)와 상기 LED프린터헤드부(2)의 발광량을 검출하는 광검출부(3)와,광검출부(3)로부터 검출된 광량신호를 증폭하는 증폭부(4)와, 상기 증폭부(4)에서 증폭된 광량을 3단계로 비교하여 2비트 발광보정데이타를 발생시키는 비교 및 보정데이타 발생부(5)와 클럭부(11)로부터 클럭신호를 받아 계수한 후 보정데이타를 저장하는 메모리부(6)에 번지지정을 하는 카운터부(7)와, 상기 메모리부(6)에 읽기 쓰기 명령을 제어하여 큰값의 보정데이타를 기억하는 롬기억부(10)에 전송하는 중앙제어부(8)로 구성하여서 된 것을 특징으로 하는 LED프린터헤드 광출력 보정장치.In the LED printhead light output correcting apparatus for correcting the amount of light emitted from the LED printhead unit 2 in which dozens of light emitting diodes (LEDs) are localized into dozens of arrays, the switch unit 1 and the LED printer head unit ( Comparing the light detection unit 3 for detecting the light emission amount of 2), the amplification unit 4 for amplifying the light amount signal detected by the light detection unit 3, and the light amount amplified by the amplification unit 4 in three stages. A counter unit 7 for addressing and assigning the clock signal from the comparison and correction data generating unit 5 and the clock unit 11 for generating 2-bit emission correction data, and then addressing the memory unit 6 storing the correction data. And a central control unit 8 which controls a read / write command to the memory unit 6 and transmits the correction data of the large value to the ROM memory unit 10 storing the large value correction data. Compensator. 제2항에 있어서, 상기 비교 및 보정데이타 발생부(5)는 저항 (R1-R4) 비교기 (COMPl), (COMP2), (COMP3), 선수위 인코더(Encoder)와, 인버터(INV1), (INV2)로 구성하여 보정데이타를 발생시키도록한 것을특징으로 하는 LED 프린터헤드 광출력 보정장치.The comparison and correction data generating unit (5) of claim 2 includes: resistors (R1-R4) comparators (COMPl), (COMP2), (COMP3), head encoder (Encoder), inverter (INV1), ( An LED printhead optical output correction device characterized by comprising INV2) to generate correction data. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019880007119A 1988-06-14 1988-06-14 Method and apparatusfor compensating emitting output of led printer head KR910001316B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019880007119A KR910001316B1 (en) 1988-06-14 1988-06-14 Method and apparatusfor compensating emitting output of led printer head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019880007119A KR910001316B1 (en) 1988-06-14 1988-06-14 Method and apparatusfor compensating emitting output of led printer head

Publications (2)

Publication Number Publication Date
KR900000797A true KR900000797A (en) 1990-01-31
KR910001316B1 KR910001316B1 (en) 1991-03-02

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KR1019880007119A KR910001316B1 (en) 1988-06-14 1988-06-14 Method and apparatusfor compensating emitting output of led printer head

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KR910001316B1 (en) 1991-03-02

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