KR910013001A - Printing start signal setting and video data clock pulse generator circuit of laser beam printer - Google Patents

Printing start signal setting and video data clock pulse generator circuit of laser beam printer Download PDF

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Publication number
KR910013001A
KR910013001A KR1019890019632A KR890019632A KR910013001A KR 910013001 A KR910013001 A KR 910013001A KR 1019890019632 A KR1019890019632 A KR 1019890019632A KR 890019632 A KR890019632 A KR 890019632A KR 910013001 A KR910013001 A KR 910013001A
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KR
South Korea
Prior art keywords
clock pulse
start signal
video data
laser beam
beam printer
Prior art date
Application number
KR1019890019632A
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Korean (ko)
Other versions
KR920004360B1 (en
Inventor
서정태
Original Assignee
정용문
삼성전자 주식회사
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Priority to KR1019890019632A priority Critical patent/KR920004360B1/en
Publication of KR910013001A publication Critical patent/KR910013001A/en
Application granted granted Critical
Publication of KR920004360B1 publication Critical patent/KR920004360B1/en

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    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Fax Reproducing Arrangements (AREA)
  • Laser Beam Printer (AREA)

Abstract

내용 없음.No content.

Description

레이저 빔 프린터의 프린팅 출발신호 설정 및 비디오 데이타 클럭 펄스 발생회로Printing start signal setting and video data clock pulse generator circuit of laser beam printer

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제2도는 본 발명에 따른 일실시예의 구체회로도.2 is a detailed circuit diagram of one embodiment according to the present invention.

제3도는 제2도의 각 부분의 동작파형도.3 is an operating waveform diagram of each part of FIG.

Claims (3)

레이저 빔 프린터의 프린팅 출발신호 설정 및 비디오 데이타 클럭 펄스 발생회로에 있어서, 프린팅 준비가 완료되었을 때 프린팅 데이타 요청신호를 출력하며 프린팅 데이타를 입력하여 프린팅을 수행하는 레이저 빔 프린터 엔진부(10)와, 레이저 빔 프린터를 전반적으로 제어하며 프린팅할 데이타가 도면에 도시되지 않은 램에 모두입력되어 있는 상태에서 DMA(Direct Memory Access)가 동작상태임을 알리는 DMA인에이블 신호를 출력하는 CPU부(20)와, 소정의 클럭펄스를 발생하는 클럭퍽스 발생부(30)와, 상기 레이저 빔 프린터 엔진부(10)의 프린팅 데이타 요청신호와 상기 CPU부(20)의 DMA인에이블신호를 입력하여 상기 클럭펄스 발생부(30)의 소정의 클럭펄스에 의해 프린팅 출발 신호를 출력하는 프린팅 출발 신호 발생부(40)와, 상기 프린팅 출발 신호 발생부(40)의 프린팅 출발 신호에 의해 상기 클럭펄스 발생부(30)에서 출력되는 소정의 클럭펄스를 소정의 단계로 분주하여 비디오 데이타 클럭펄스를 출력하는 비디오 데이타 클럭펄스 발생부(50)와, 상기 프린팅 출발 신호 발생부(40)의 프린팅 출발 신호에 의해 프린팅할 데이타를 상기 비디오 데이타 클럭발생부(50)의 비디오 데이타 클럭펄스에 맞춰 상기 레이저 빔 프린터 엔진부(10)에 출력하는 데이타 래치부(60)로 구성됨을 특징으로 하는 레이저 빔 프린터의 프린팅 출발신호 설정 및 비디오 데이타 클럭펄스 발생회로.A laser beam printer engine unit (10) for setting a printing start signal of a laser beam printer and a video data clock pulse generation circuit, outputting a printing data request signal and inputting printing data when printing is completed, and performing printing; A CPU unit 20 which overall controls the laser beam printer and outputs a DMA enable signal informing that the DMA (Direct Memory Access) is in operation while all data to be printed is input to RAM not shown in the drawing; The clock pulse generator by inputting a clock perks generator 30 for generating a predetermined clock pulse, a printing data request signal of the laser beam printer engine unit 10, and a DMA enable signal of the CPU unit 20; A printing start signal generator 40 for outputting a printing start signal by a predetermined clock pulse of (30), and the printing start signal generator 40 A video data clock pulse generator 50 for outputting a video data clock pulse by dividing a predetermined clock pulse output from the clock pulse generator 30 in a predetermined step by a lining start signal, and generating the printing start signal The data latch unit 60 outputs data to be printed by the printing start signal of the unit 40 to the laser beam printer engine unit 10 in accordance with the video data clock pulse of the video data clock generator 50. A printing start signal setting and video data clock pulse generation circuit of a laser beam printer characterized by the above-mentioned. 제1항에 있어서, 프린팅 출발 신호 발생부(40)가 D플립플롭(42)과 낸드게이트(G1)와 저항(R1)으로 구성됨을 특징으로 하는 레이저 빔 프린터의 프린팅 출발신호 설정 및 비디오 데이타 클럭펄스 발생회로.2. The printing start signal setting and video data clock of a laser beam printer according to claim 1, wherein the printing start signal generator 40 comprises a D flip-flop 42, a NAND gate G1, and a resistor R1. Pulse generator circuit. 제1항에 있어서, 비디오 데이타 클럭펄스 발생부(50)가 소정 비트의 2진 카운터(52)와 저항(R1)으로 구성됨을 특징으로 하는 레이저 빔 프린터의 프린팅 출발신호 설정 및 비디오 데이타 클럭 펄스 발생회로.2. The printing start signal setting and the video data clock pulse generation of a laser beam printer according to claim 1, wherein the video data clock pulse generator 50 comprises a binary counter 52 of a predetermined bit and a resistor R1. Circuit. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890019632A 1989-12-27 1989-12-27 Printing start signal setting and video data clock pulse generating circuit for laser beam printer KR920004360B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019890019632A KR920004360B1 (en) 1989-12-27 1989-12-27 Printing start signal setting and video data clock pulse generating circuit for laser beam printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019890019632A KR920004360B1 (en) 1989-12-27 1989-12-27 Printing start signal setting and video data clock pulse generating circuit for laser beam printer

Publications (2)

Publication Number Publication Date
KR910013001A true KR910013001A (en) 1991-08-08
KR920004360B1 KR920004360B1 (en) 1992-06-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890019632A KR920004360B1 (en) 1989-12-27 1989-12-27 Printing start signal setting and video data clock pulse generating circuit for laser beam printer

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KR (1) KR920004360B1 (en)

Also Published As

Publication number Publication date
KR920004360B1 (en) 1992-06-04

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