EP0264190A1 - Verfahren zur Einstellung und Anzeige der Bilddichte in einem Bilderzeugungsgerät - Google Patents
Verfahren zur Einstellung und Anzeige der Bilddichte in einem Bilderzeugungsgerät Download PDFInfo
- Publication number
- EP0264190A1 EP0264190A1 EP87308061A EP87308061A EP0264190A1 EP 0264190 A1 EP0264190 A1 EP 0264190A1 EP 87308061 A EP87308061 A EP 87308061A EP 87308061 A EP87308061 A EP 87308061A EP 0264190 A1 EP0264190 A1 EP 0264190A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- image density
- state
- indicators
- indicator
- setting
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
- G03G15/5016—User-machine interface; Display panels; Control console
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
- G03G15/043—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for controlling illumination or exposure
Definitions
- This invention relates to a method for setting and visually indicating the image density of image forming apparatus, such as electrophotographic copying machines and facsimile terminal equipment, according to the density of an original.
- JP-A-11364/1982 discloses an exposure setting device, that is, an image density setting device, comprising means for changing the exposure amount to a desired amount in steps and then setting the desired amount and means for visually indicating the amount in steps in accordance with the set content of the setting means.
- the present invention has the object of providing a method for setting and indicating image density which makes it possible to change the image density finely and indicate a changed image density without using a large number of indicators.
- Fig. 1 shows an operation panel 100 of apparatus such as copying machine in which a method of the present invention is performed.
- Indicated at 101 is a copy number indicator
- indicated at 102 is a ten-key array for setting the number of copy
- indicated at 103 is a start button
- indicated at 104 and 105 are setting keys for changing the exposure in steps in accordance with the density of original.
- the numeral 104 indicates an UP key and the numeral 105 a DOWN key.
- Indicated at L is an indicating device including a row of a plurality of indicators(seven indicators in the case of the present embodiment) which are lighted to visually indicate an image density changed by the setting keys 104, 105.
- a light emitting diode (LED) is used for the indicator.
- the indicating device L visually indicates the image density in the following way.
- the first indicator 1 positioned at the left end is lighted when the image density is reduced so as to correspond to the lightest original.
- the seventh indicator 7 positioned at the right end is lighted when the image density is increased so as to correspond to the darkest original.
- the second through sixth indicators are lighted corresponding to an image density changed in steps by the setting keys 104, 105.
- the fourth indicator 4 positioned at the intermediate portion indicates a standard image density.
- Fig. 2 shows the first method embodying the present invention which sets and indicates the image density in the case of increasing and decreasing from an image density to the next image density.
- the fourth indicator 4 is lighted, in other word, the lighted indicator 4 is colored black, an image density is set, for example, an image density of "4".
- the fourth indicator 4 is switched on and off as shown in Fig. 2(b). Radial lines around the indicator 4 represents the indicator being held in the ON-and-OFF state. The ON-and-OFF state indicates that the image density is set at "4.5".
- Fig. 2 shows the first method embodying the present invention which sets and indicates the image density in the case of increasing and decreasing from an image density to the next image density.
- the fourth indicator is changed from the ON-and-OFF state to the OFF state and the fifth indicator 5 next to the fourth indicator 4 is lighted. That is, an image density of "5" is set.
- an intermediate image density is set and indicated by switching on and off the indicator.
- Fig. 3 shows the second embodiment in which the fifth indicator 5 is switched on and off to indicate an image density of "4.5" as shown in Fig. 3(b).
- the image density is indicated by the method of Fig. 2 when increasing the image density and by the method of Fig. 3 when decreasing the image density, or in reverse to the above. More specifically, an image density of "4.5" is indicated by the ON-and-OFF state of the fourth indicator 4 in the case of increasing the image density and by the ON-and-OFF state of the fifth indicator 5 in the case of decreasing the density.
- the ON-and-OFF state of the indicator gives two interpretations in the above embodiments. More specifically, the ON-and-OFF state of the fourth indicator 4 can be interpreted in two way, that is, an image density of "3.5" and an image density of "4.5". Also, the ON-and-OFF state of the fifth indicator 5 can be interpreted as an image density of "4.5” or an image density of "5.5”. Therefore, it is desirable to define which of two intermediate image densities the ON-and-OFF state of the indicator indicates according to copying machines and notify the definition. In the first embodiment of Fig. 2, the ON-and-OFF state of the indicator indicates an image density added "0.5" to an image density of the indicator coming on and off. The second embodiment of Fig.
- Fig. 4 shows the third method embodying the present invention which sets and indicates the image density.
- the intermediate state is provided in which the indicators next to each other are lighted at the same time.
- An intermediate image density is set in the state that the two indicators are lighted at the same time. More specifically, a state of Fig. 4(a) in which the fourth indicator 4 is lighted is changed to a state of Fig. 4(b) in which the fourth and fifth indicators 4 and 5 are lighted at the same time by pushing the UP key 104 one time, and then changed to a state of Fig. 4(c) in which the fifth indicator 5 is lighted by pushing the UP key 104 one more time. In the intermediate state in which the fourth and fifth indicators are lighted at the same time, an image density of "4.5" is set. It will be apparent that instead of the simultaneous lighting of two indicators, it is appropriate to switch on and off two indicators next to each other at the same time.
- Fig. 6 shows a variation of the embodiments of Figs 4 and 5.
- the state of Fig. 6(b) is provided in which one indicator, for example the indicator 4, is lighted and the next indicator 5 is switched on and off and an image density of "4.25" is set.
- the state of Fig. 6(d) is provided in which the indicator 4 is switched on and off and the indicator 5 is lighted and an image density of "4.75" is set. Accordingly, it is possible to change the image density by "0.25".
- the body of a copying machine is provided with a selection switch for changing from a mode in which intermediate states are provided as mentioned above to a mode in which no intermediate states are provided as conventional method and vice versa.
- Fig. 7 shows the construction of a control circuit for carrying out the method of the present invention.
- Signals from the UP key 104 and the DOWN key 105 are sent to a microcomputer 106 constituting a control unit for controlling the whole of a copying machine.
- a command of the microcomputer 106 is sent to an exposure voltage control circuit 107 in which then render an exposure lamp 108 work at a set image density.
- the indicating device L is operated by the microcomputer 106 as mentioned above.
- Fig. 8 is a flowchart of procedure in accordance with which the microcomputer 106 executes the image density indication of Figs. 2 and 3.
- Fig. 9 is a flowchart of procedure in accordance with which the microcomputer 106 executes the image density indication of Figs. 4 and 5.
- an image density setting routine is started.
- the fourth indicator 4 is lightee which corresponds to an image density of "4".
- step S3 it is checked whether there is an input signal from the UP key 104 or the DOWN key 105. If YES, the procedure proceeds to step S4 at which it is checked whether the indicating device is in the light state. If YES, in other words, when the indicating device is in the state of Fig.
- step S5 an indicator (LED) corresponding to an input signal of the keys is switched on and off.
- step S6 it is checked whether there is an input signal from the keys. If YES, the procedure returns to step S4. If NO, the procedure returns to the main routine. If the answer of step S4 is NO, in other words, when the indicating device is in such switching on and off state as shown in Fig. 2(b) or Fig.
- step S8 the procedure proceeds to step S8 at which an indicator (LED) corresponding to the key input signal is lighted. Consequently, when the key input is done by the UP key 104, the indicating device comes to the state of Fig. 2(c) or Fig. 3(c).
- step S6 the answer of step S6 is kept at YES. Accordingly, the procedure alternately proceeds to step S5 and step S8, so that indicators are put into the lighting state and ON-and-OFF state alternately and successively.
- step S3 the answer of step S3 is kept at YES, the procedure proceeds to step S4 and then alternately to step S5 and step S8, so that the indicating device operates in the same way as mentioned above.
- step S4 ⁇ it is checked whether only one indicator is lighted. If YES, in other words, if the indication device is in the state of Fig. 4(a) or Fig. 5(a), the procedure proceeds to step S5 ⁇ at which two indicators (LED) corresponding to the key input signal is lighted or switched on and off. Consequently, when the key input is done up by the UP key 104, the indicating device comes to the state of Fig. 4(b) or Fig. 5(b).
- step S8 ⁇ at which one indicator (LED) corresponding to the key input signal is lighted. Consequently, the indicating device comes to the state of Fig. 4(c) or in Fig 5(c). The lighting position of the indicating device is changed according to the input signal of the image density setting keys in such a way as mentioned above.
- the present invention which sets and indicates a set image density in steps by lighting a particular indicator of a plurality of indicators and further sets and indicates an intermediate image density in steps by switching on and off an indicator, or lighting or switching on and off two indicators next to each other at the same time, makes it possible to set and indicate the image density by an increased number of stages without increasing the number of indicator, consequently assuring setting and indicating of an image density more suitable to the density of original at a reduced cost.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61216247A JPS6370840A (ja) | 1986-09-12 | 1986-09-12 | 露光量の設定および表示方法 |
JP216247/86 | 1986-09-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0264190A1 true EP0264190A1 (de) | 1988-04-20 |
EP0264190B1 EP0264190B1 (de) | 1992-12-02 |
Family
ID=16685577
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19870308061 Expired - Lifetime EP0264190B1 (de) | 1986-09-12 | 1987-09-11 | Verfahren zur Einstellung und Anzeige der Bilddichte in einem Bilderzeugungsgerät |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0264190B1 (de) |
JP (1) | JPS6370840A (de) |
DE (1) | DE3782914T2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2345174A (en) * | 1998-12-22 | 2000-06-28 | Canon Kk | Graphic user interface |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3123452A1 (de) * | 1980-06-13 | 1982-02-25 | Minolta Camera K.K., Osaka | Mechanische anordnung fuer eine betaetigungsvorrichtung |
DE3334361A1 (de) * | 1982-09-24 | 1984-03-29 | Canon K.K., Tokyo | Kopiergeraet |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62159136A (ja) * | 1985-12-29 | 1987-07-15 | Toshiba Corp | 電子複写装置 |
-
1986
- 1986-09-12 JP JP61216247A patent/JPS6370840A/ja active Pending
-
1987
- 1987-09-11 DE DE19873782914 patent/DE3782914T2/de not_active Expired - Fee Related
- 1987-09-11 EP EP19870308061 patent/EP0264190B1/de not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3123452A1 (de) * | 1980-06-13 | 1982-02-25 | Minolta Camera K.K., Osaka | Mechanische anordnung fuer eine betaetigungsvorrichtung |
DE3334361A1 (de) * | 1982-09-24 | 1984-03-29 | Canon K.K., Tokyo | Kopiergeraet |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN, vol. 6, no. 75 (P-114)[953], 12th May 1982; & JP - A - 57 11364 (TOKYO SHIBAURA DENKI) 21-01-1982 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2345174A (en) * | 1998-12-22 | 2000-06-28 | Canon Kk | Graphic user interface |
GB2345176A (en) * | 1998-12-22 | 2000-06-28 | Canon Kk | Graphic user interface |
GB2345176B (en) * | 1998-12-22 | 2003-07-16 | Canon Kk | Graphic user interface |
Also Published As
Publication number | Publication date |
---|---|
EP0264190B1 (de) | 1992-12-02 |
DE3782914D1 (de) | 1993-01-14 |
DE3782914T2 (de) | 1993-06-09 |
JPS6370840A (ja) | 1988-03-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0192984B1 (de) | Auswahlvorrichtung in einem elektronischen Musikinstrument | |
US4394087A (en) | Mechanical arrangement for controlling electrophotographic apparatus | |
KR100203745B1 (ko) | 에이디씨-키 패드 장치 및 그의 제어방법 | |
US5218353A (en) | Display device for a recording device capable of displaying a plurality of operating states or conditions in effect | |
US4402246A (en) | Tone quality presetting apparatus in electronic musical instrument | |
EP0301459B1 (de) | Bilderzeugungsgerät | |
EP0631202B1 (de) | Bildqualitätsabstimmungsverfahren und Bilderzeugungsgerät | |
EP0264190A1 (de) | Verfahren zur Einstellung und Anzeige der Bilddichte in einem Bilderzeugungsgerät | |
US4406235A (en) | Electronic sewing machine | |
GB2143054A (en) | Electronic time switch | |
US5673372A (en) | Printing color display device for a printer | |
JPS6059716B2 (ja) | 照明負荷制御装置 | |
US5838324A (en) | Information processing apparatus for displaying a plurality of modes of operation thereof | |
JP7248815B2 (ja) | 溶接装置の操作パネル、この種のパネルを備えた溶接装置、この種の溶接装置の溶接パラメータを構成するための方法 | |
JPS55149955A (en) | Paper size indicator of copier | |
KR970004580B1 (ko) | 버튼식 프로그램 타이머 | |
JPS60162371A (ja) | 機能選択装置 | |
JPS5710153A (en) | Automatic diagnosing device of copying machine | |
JPH08163456A (ja) | テレビジョン受像機 | |
KR920003347B1 (ko) | 팩시밀리의 기능설정장치 및 방법 | |
JPH0635282A (ja) | 複写機の操作部表示方法 | |
JPH0134871Y2 (de) | ||
JPH0622068A (ja) | デジタル複写機 | |
JPS62204248A (ja) | 複写機の露光量調整装置 | |
JPH04233591A (ja) | 表示装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB IT NL |
|
17P | Request for examination filed |
Effective date: 19880609 |
|
17Q | First examination report despatched |
Effective date: 19910425 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB IT NL |
|
REF | Corresponds to: |
Ref document number: 3782914 Country of ref document: DE Date of ref document: 19930114 |
|
ITF | It: translation for a ep patent filed |
Owner name: MODIANO & ASSOCIATI S.R.L. |
|
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19970902 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19970909 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19970919 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 19970929 Year of fee payment: 11 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19980911 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990401 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 19980911 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990531 |
|
NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 19990401 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990701 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20050911 |