KR930004855B1 - Temperature control method of heater - Google Patents

Temperature control method of heater Download PDF

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KR930004855B1
KR930004855B1 KR1019870014738A KR870014738A KR930004855B1 KR 930004855 B1 KR930004855 B1 KR 930004855B1 KR 1019870014738 A KR1019870014738 A KR 1019870014738A KR 870014738 A KR870014738 A KR 870014738A KR 930004855 B1 KR930004855 B1 KR 930004855B1
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Prior art keywords
heater
reference temperature
microprocessor
printing
signal
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KR1019870014738A
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Korean (ko)
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KR890010653A (en
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윤용섭
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주식회사 금성사
최근선
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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Temperature (AREA)
  • Fixing For Electrophotography (AREA)

Abstract

The method controls the reference heat generation temperature for a heater to minimize power consumption in standby mode. It includes a microprocessor (1) for setting a certain reference temperature (T1) as the standby reference temperature (Ts) of a heater when a printer is in standby mode, performing print process after setting the reference temperatures (Ts) of the heater when the printing signal (PRINT) of negative level is inputted to the drive input terminal (IN) of the microprocessor (1), and returning to its initial state when the printing signal (PRINT) of positive level is inputted.

Description

히터의 발열 기준온도설정 제어방법How to control the heat generation reference temperature of the heater

제1도는 본 발명의 방법에 의한 회로도.1 is a circuit diagram according to the method of the present invention.

제2도는 제1도의 입출력 파형도.2 is an input / output waveform diagram of FIG.

제3도는 본 발명의 방법에 의한 마이크로 프로세서의 신호 흐름도.3 is a signal flow diagram of a microprocessor according to the method of the present invention.

제4a도는 정착로울러의 온도특성을 보인 그래프이고, b도는 본 발명에 의한 일정온도설정 관계를 보인 그래프.Figure 4a is a graph showing the temperature characteristics of the fixing roller, b is a graph showing the relationship between the constant temperature setting according to the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 마이크로 프로세서 TH : 더미스터1: microprocessor TH: dummy

본 발명은 전자복사기의 정착기 또는 레이저 프린터 등에 설치된 히터의 발열일정기준온도를 조절하여 대기상태에서의 전력소모를 최소로 줄일 수 있게한 히터의 발열기준온도 설정 제어방법에 관한 것이다.The present invention relates to a control method for setting a heating reference temperature of a heater that can reduce the power consumption in the standby state to a minimum by adjusting the heating constant reference temperature of the heater installed in the fuser or laser printer of the electronic copying machine.

종래에는 히터의 발열기준온도가 한가지로 설정되어 마이크로프로세서가 전원의 인가를 제어하여 히터가 일정온도를 발열하게만 제어하였으므로 이는 정착로울러의 온도가 기준온도(TS)보다 낮으면 히터에 전류를 흘려 기준온도(TS)에 이르게 되어 그 기준온도(Ts)에 의해 제어되므로 대기시간중에 전력소모가 많은 결함이 있엇다.Conventionally, the heating based on the temperature of the heater is set in one microprocessor hayeoteumeuro only control to control the application of power to the heater heating the constant temperature, which, if the temperature of the fixing roller is lower than the reference temperature (T S) current to the heater flowing the reference temperature (T S) is reached the reference temperature (T s) since the power-hungry iteotda defects during the waiting time controlled by the.

본 발명은 이와같은 종래의 결함을 감안하여, 히터의 발열일정기준온도를 조절하여 대기상태에서의 전력소모를 최소로 줄일수 있게 창안한 것으로 이를 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.The present invention has been made in view of the conventional defects, by adjusting the heating constant temperature reference temperature of the heater to minimize the power consumption in the standby state to be described in detail by the accompanying drawings as follows.

제1도에 도시한 바와같이 마이크로 프로세서(1)의 아날로그 신호입력단자(AN)에는 히터의 발열온도를 검출하는 더미스터(TH) 및 저항(R1)을 접속하고, 구동신호입력단자

Figure kpo00001
에는 컴퓨터로 부터 프린팅신호
Figure kpo00002
가 인가되게 구성한 것이다.As shown in FIG. 1, the analog signal input terminal AN of the microprocessor 1 is connected with a dummyster TH and a resistor R 1 for detecting the heating temperature of the heater, and the driving signal input terminal.
Figure kpo00001
There is a printing signal from the computer
Figure kpo00002
Is configured to be applied.

이와같이 구성된 본 발명의 작용효과를 상세히 설명하면 다음과 같다.If described in detail the effects of the present invention configured as described above.

전원단자(Vcc)에 전원이 인가되는 상태에서 마이크로 프로세서(1)의 구동신호입력단자

Figure kpo00003
에 컴퓨터로 부터 제2도의 (a)에 도시한 바와같이 프린팅신호
Figure kpo00004
인 저전위신호가 입력되면, 마이크로 프로세서(1)는 그에따른 프린터의 스캐너를 회전시키기 위한 제2도의 (b)에 도시한 바와같이 스캐너신호
Figure kpo00005
를 출력하여 스캐너가 정상상태에 도달될 경우에는 스캐너는 제2도의 (c)에 도시한 바와같이 동기신호(SCANSYNC)를 마이크로 프로세서(1)에 출력하고, 이에따라 마이크로 프로세서(1)는 제2도의 (d)에 도시한 바와같이 급지장치 구동신호
Figure kpo00006
를 출력하여 용지가 정착기에 이송되기까지는 일정시간(t)이 경과한 후 즉, 프린터가 프린팅을 시작하게 용지가 장착기에 이송되기까지의 일정시간(t)은 제2도의 (e)에 도시한 바와같이 스캐너 가속도시간(t1)과 용지이송시간(t2)을 합한시간이 된다.The drive signal input terminal of the microprocessor 1 in a state where power is applied to the power terminal Vcc.
Figure kpo00003
Printing signal from the computer as shown in Fig. 2 (a)
Figure kpo00004
When the low potential signal is input, the microprocessor 1 causes the scanner signal as shown in FIG. 2B to rotate the scanner of the printer accordingly.
Figure kpo00005
When the scanner reaches the normal state by outputting the output signal, the scanner outputs the synchronizing signal SCANSYNC to the microprocessor 1 as shown in (c) of FIG. 2, whereby the microprocessor 1 Paper feeder drive signal as shown in (d)
Figure kpo00006
After the predetermined time (t) has elapsed until the paper is transported to the fuser, that is, the time (t) until the paper is transferred to the mounter for the printer to start printing is shown in FIG. As described above, this is the sum of the scanner acceleration time t 1 and the paper feed time t 2 .

그리고, 마이크로 프로세서(1)는 제3도에 도시한 바와같이 전원루틴을 수행하면서 프린터가 대기상에 있는지를 판별하여 대기상태일 경우에는 제4a도에 도시한 바와같이 히터의 기준온도(TS)를 제4b도에 도시한 바와같이 일정기준온도(T1)로 설정한후 다시 대기상태인지를 판별하고, 대기상태가 아닐경우 즉, 컴퓨터로부터 프린팅신호

Figure kpo00007
인 저전위신호가 마이크로 프로세서(1)의 구동신호입력단자
Figure kpo00008
에 입력되었을 경우에는 제4b도에 도시한 바와같이 히터의 기준온도(TS)를 일정기준온도(T2)로 설정한후 그에 따른 상기에서 설명한 바와같이 프린팅을 시작하여 컴퓨터로부터 프린팅구동 정지신호인 고전위의 프린팅신호
Figure kpo00009
가 구동신호 입력단자
Figure kpo00010
에 입력될때까지 프린팅을 수행하고, 구동정지신호인 고전위의 프린팅신호
Figure kpo00011
가 입력되었을 경우에는 다시 초기상태로 원상복귀하여 상기와 같이 반복 수행한다.Then, the microprocessor 1 determines whether the printer is on the standby while performing the power routine as shown in FIG. 3, and in the standby state, the reference temperature T S of the heater as shown in FIG. 4A. ) Is set to a constant reference temperature (T 1 ) as shown in FIG. 4B, and it is again determined whether it is in a standby state.
Figure kpo00007
The low potential signal is the driving signal input terminal of the microprocessor 1
Figure kpo00008
In the case of inputting to the control panel, as shown in FIG. 4B, the reference temperature T S of the heater is set to the constant reference temperature T 2 , and then printing is started as described above. Printing signal of high potential
Figure kpo00009
Drive signal input terminal
Figure kpo00010
Printing is performed until it is input to the high potential printing signal, which is the driving stop signal.
Figure kpo00011
If is inputted, return to the original state again and repeat as above.

즉, 현재의 로우엔드 레이저 프린터의 경우에 상기 지연시간(t)이 약 8-10초가 되므로 8-10초동안 정착 로울러의 온도는 히터를 500(W)로 가정했을 경우 35℃정도의 온도상을 기대할 수 있게된다. 따라서 기준온도(TS)를 185℃로 가정했을 경우 본 발명에 의한 프린팅시 일정기준온도(T2)는 185℃가 되며, 대기상태시 일정기준온도(T1)는 150℃로 설정할 수 있다.That is, in the case of the current low-end laser printer, the delay time t becomes about 8-10 seconds, so the temperature of the fixing roller for 8-10 seconds is about 35 ° C when the heater is 500 (W). You can expect. Therefore, when the reference temperature T S is assumed to be 185 ° C., the constant reference temperature T 2 becomes 185 ° C. during printing according to the present invention, and the constant reference temperature T 1 may be set to 150 ° C. in the standby state. .

이상에서 설명한 바와같이 본 발명은 컴퓨터로부터 마이크로 프로세서에 프린팅신호의 입력에 따라 즉, 대기상태인지를 판별하여 그에따른 히터의 일정기준온도를 설정함으로써 레이저프린터가 대기상태에서의 전력소모를 최소로 줄일 수 있게됨은 물론 히터의 사용수명을 연장하게 되는 효과가 있다.As described above, according to the present invention, the laser printer reduces power consumption in the standby state by setting the constant reference temperature of the heater according to the input of the printing signal from the computer to the microprocessor, that is, the standby state. Being able to of course have the effect of extending the service life of the heater.

Claims (1)

전원이 온된 상태에서 마이크로 프로세서(1)는 프린터가 대기상태인지를 판별하여 대기상태일 경우에는 히터의 기준온도(TS)를 일정기준온도(T1)로 설정한 후 다시 프린터의 대기상태 여부를 판별하고, 대기 상태가 아닐경우 즉, 마이크로 프로세서(1)의 구동신호 입력단자
Figure kpo00012
에 저전위의 프린팅신호
Figure kpo00013
가 입력되어 프린팅이 시작되었을 경우에는 히터의 기준온도(TS)를 일정기준온도(T2)로 설정하여 컴퓨터로 부터 프린팅 구동제어신호인 고전위의 프린팅신호
Figure kpo00014
가 구동신호 입력단자
Figure kpo00015
에 입력될때까지 프린팅을 실행한후 고전위의 프린팅신호
Figure kpo00016
가 입력되었을 경우에 초기상태로 원상복귀하는 과정으로 이루어짐을 특징으로 하는 발열기준온도 설정제어방법.When the power is turned on, the microprocessor 1 determines whether the printer is in a standby state. In the standby state, the microprocessor 1 sets the reference temperature T S of the heater to a predetermined reference temperature T 1 and then checks whether the printer is in the standby state again. If not in the standby state, that is, the drive signal input terminal of the microprocessor 1
Figure kpo00012
Low potential printing signal at
Figure kpo00013
Is input and printing starts, set the heater's reference temperature (T S ) to a constant reference temperature (T 2 ) and print the high-potential printing signal, which is the printing drive control signal from the computer.
Figure kpo00014
Drive signal input terminal
Figure kpo00015
Printing operation of high potential after executing printing until input to
Figure kpo00016
The control method for heat generation reference temperature setting, characterized in that the process of returning to the original state when the input.
KR1019870014738A 1987-12-22 1987-12-22 Temperature control method of heater KR930004855B1 (en)

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Application Number Priority Date Filing Date Title
KR1019870014738A KR930004855B1 (en) 1987-12-22 1987-12-22 Temperature control method of heater

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KR930004855B1 true KR930004855B1 (en) 1993-06-09

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