KR910009041A - Facsimile Thermal Recording Head Speed Control Circuit - Google Patents

Facsimile Thermal Recording Head Speed Control Circuit Download PDF

Info

Publication number
KR910009041A
KR910009041A KR1019890014318A KR890014318A KR910009041A KR 910009041 A KR910009041 A KR 910009041A KR 1019890014318 A KR1019890014318 A KR 1019890014318A KR 890014318 A KR890014318 A KR 890014318A KR 910009041 A KR910009041 A KR 910009041A
Authority
KR
South Korea
Prior art keywords
recording head
thermal recording
head speed
control circuit
speed control
Prior art date
Application number
KR1019890014318A
Other languages
Korean (ko)
Other versions
KR920008898B1 (en
Inventor
이형수
Original Assignee
이헌조
주식회사 금성사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 이헌조, 주식회사 금성사 filed Critical 이헌조
Priority to KR1019890014318A priority Critical patent/KR920008898B1/en
Publication of KR910009041A publication Critical patent/KR910009041A/en
Application granted granted Critical
Publication of KR920008898B1 publication Critical patent/KR920008898B1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/024—Details of scanning heads ; Means for illuminating the original

Abstract

내용 없음No content

Description

팩시밀리의 감열기록헤드 속도조절회로Facsimile Thermal Recording Head Speed Control Circuit

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

제1도는 본 발명의 회로도.1 is a circuit diagram of the present invention.

제2도는 본 발명의 시스템클럭과 흑화소 데이타에 의해 카운트되는 타이밍도.2 is a timing diagram counted by the system clock and black pixel data of the present invention.

제3도는 본 발명의 플로우 챠트도.3 is a flowchart of the present invention.

Claims (1)

시프트레지스터(9)와 래치회로(10), 앤드게이트(A1-An) 및 발열저항(R1-Rn)으로 구성된 팩시밀리의 감열기록헤드에 있어서 라인 메모리에 의해 화상데이타가 측적된 램(5)은 멀티플렉서(4)를 통해 감열기록헤드(6)의 시프트레지스터(9)와 일단 입력에 클럭이 인가되는 낸드게이트(3)의 입력에 연결하고 낸드게이트(3)의 출력은 현흑화소량을 카운트하는 바이너리 카운트(2)와 프로그램 가능한 입출력칩(7)을 통해 기준 초기치 흑화소가 설정된 부중앙처리장치(1)에 연결하여 바이너리 카운트(2)의 현흑화소량이 기준초기치 흡흑화소량보다 작으면 부중앙처리장치(1)는 앤드게이트(A1-An)에 인가되는 스트로브신호(S1-S8)를 동시에 쇼트(Short)시켜 프린트 속도를 높이는 것을 특징으로 한 팩시밀의 감열기록 헤드 속도조절회로.RAM having image data measured by line memory in a facsimile thermal recording head composed of a shift register 9, a latch circuit 10, an AND gate A 1 -A n , and a heating resistor R 1 -R n . (5) is connected to the input of the shift register 9 of the thermal recording head 6 and the NAND gate 3 to which the clock is applied to the input through the multiplexer 4, and the output of the NAND gate 3 is blackened. A binary count (2) for counting a small amount and a programmable I / O chip (7) are connected to the central processing unit (1) in which the reference initial value black pixel is set, so that the current black pixel amount of the binary count (2) is the reference initial value When smaller, the sub-central processing unit 1 shortens the strobe signals S 1 -S 8 applied to the AND gates A 1 -A n simultaneously to increase the printing speed. Record head speed regulating circuit. ※참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is to be disclosed based on the initial application.
KR1019890014318A 1989-10-05 1989-10-05 Circuit for controlling head speed of fax KR920008898B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019890014318A KR920008898B1 (en) 1989-10-05 1989-10-05 Circuit for controlling head speed of fax

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019890014318A KR920008898B1 (en) 1989-10-05 1989-10-05 Circuit for controlling head speed of fax

Publications (2)

Publication Number Publication Date
KR910009041A true KR910009041A (en) 1991-05-31
KR920008898B1 KR920008898B1 (en) 1992-10-10

Family

ID=19290460

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890014318A KR920008898B1 (en) 1989-10-05 1989-10-05 Circuit for controlling head speed of fax

Country Status (1)

Country Link
KR (1) KR920008898B1 (en)

Also Published As

Publication number Publication date
KR920008898B1 (en) 1992-10-10

Similar Documents

Publication Publication Date Title
JPS56137978A (en) Thermal recording device
KR830007000A (en) Waveform shaping circuit of digital signal processing device
DE69228522T2 (en) Read / write memory with test mode data comparison
KR910009041A (en) Facsimile Thermal Recording Head Speed Control Circuit
JPS56110386A (en) Copying device
JPS55134442A (en) Data transfer unit
CA1078969A (en) Method and apparatus for transfer of asynchronously altering data words
KR850007713A (en) Semiconductor memory
SU1679480A1 (en) Data output device
JPS56137977A (en) Thermal recording device
SU858025A1 (en) Device for reading-out information from punched tape
KR960015170A (en) Data Crosstalk Prevention Circuit of Image Memory
SU474000A1 (en) Mass storage device
JPS5739438A (en) Input controlling system
JPS5742265A (en) Print pulse width control system for heat sensing recorder
SU1088114A1 (en) Programmable code-to-time interval converter
SU1030796A1 (en) Number sorting device
SU410558A1 (en)
JPS56114472A (en) Rationalizing device for recording signal of partial reading and recording device
SU1516785A1 (en) Method and apparatus for determining position of zone with uneven illumination
SU432549A1 (en)
SU1241222A1 (en) Information input device
KR970025144A (en) Memory interface method and circuit of variable length decoder
SU1305771A1 (en) Buffer memory driver
JPS56156981A (en) Bubble memory device

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 19971229

Year of fee payment: 7

LAPS Lapse due to unpaid annual fee