CN1099623C - Fixing device for electronic photoing copying-press - Google Patents
Fixing device for electronic photoing copying-press Download PDFInfo
- Publication number
- CN1099623C CN1099623C CN97104646A CN97104646A CN1099623C CN 1099623 C CN1099623 C CN 1099623C CN 97104646 A CN97104646 A CN 97104646A CN 97104646 A CN97104646 A CN 97104646A CN 1099623 C CN1099623 C CN 1099623C
- Authority
- CN
- China
- Prior art keywords
- slide
- photographic fixing
- roller
- fixing device
- image
- 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.)
- Expired - Fee Related
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
- G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
- G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
- G03G15/2014—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
- G03G15/2064—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat combined with pressure
-
- 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
- G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
-
- 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
- G03G15/65—Apparatus which relate to the handling of copy material
- G03G15/6588—Apparatus which relate to the handling of copy material characterised by the copy material, e.g. postcards, large copies, multi-layered materials, coloured sheet material
- G03G15/6591—Apparatus which relate to the handling of copy material characterised by the copy material, e.g. postcards, large copies, multi-layered materials, coloured sheet material characterised by the recording material, e.g. plastic material, OHP, ceramics, tiles, textiles
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
- G03G2215/00443—Copy medium
- G03G2215/00493—Plastic
- G03G2215/00497—Overhead Transparency, i.e. OHP
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/20—Details of the fixing device or porcess
- G03G2215/207—Type of toner image to be fixed
- G03G2215/2074—Type of toner image to be fixed colour
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Textile Engineering (AREA)
- Fixing For Electrophotography (AREA)
- Paper Feeding For Electrophotography (AREA)
- Combination Of More Than One Step In Electrophotography (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
Abstract
A kind of fixing device of electrophotographic printing, which transfers electrostatic latent image developed carbon powder to output medium of pringting image and performs heating fixing. When an image output medium is an overhead projector transparent sheet, the overhead projector transparent sheet is continuously held between a fixing roller and a fixing backup roller in the fixing unit and a plurality of heating and fixing process are repeated on to the overhead projector transparent sheet by repeatedly rotating both rollers in normal and reverse directions. The invention permits esay control of electrophotographic process, presents a stable image quality, and has a low-cost.
Description
After the present invention relates in copy text output units such as printer and copy device, be transferred on the recording medium from image-carrier (holding body), the carbon dust picture is carried out the fixing device of heat fixer to carbon dust on recording medium as load.
Fig. 7 is the cut-open view of the conditional electronic photorepeater shown in the open 1992-7564 communique of Japanese patent of invention for example.This electrophotographic copier is made of following each treating apparatus.Promptly, make the photosensitive surface uniform charged charged processing, by photoreceptor is carried out rayed make electrically charged partly eliminate static and form with the exposure-processed of the corresponding sub-image of image information, in sub-image additional as the carbon dust of developer form the carbon dust picture development treatment, carbon dust is looked like to be transferred to the transfer process on the recording medium (to call " paper used for recording " in the following text), the cleaning of removing remaining carbon dust on the photoreceptor, and the photographic fixing of carbon dust picture photographic fixing on paper used for recording of transfer printing is handled.
In Fig. 7, columnar photoreceptor 1 rotation is installed on the not shown framework freely.Charged device 2 makes photoreceptor 1 surperficial uniform charged, carries out charged processing.Exposing beam 3 shines photoreceptor 1 by the light irradiation device of optical system, with the electrically charged static of partly eliminating of photoreceptor 1.Promptly carry out exposure-processed.Then, developer 4 adds carbon dust to form the carbon dust picture on the sub-image on the photoreceptor 1.That is, carry out development treatment.Developer 4 has the carbon dust of Huang (Y), dark red (M), blue or green (C), black (BK) 4 kinds of colors.
Belt like ringwise image-carrier 6 and photoreceptor 1 adjacent setting.Image-carrier 6 rotates synchronously with photoreceptor 1.And each monochromatic carbon dust that develops generates colored carbon dust picture by the first transfer printing device 7 and overlapping on photoreceptor 1.Below image-carrier 6, be provided with the second transfer printing device 8.The second transfer printing device 8 looks like the colored carbon powder on the image-carrier 6 to be transferred on the paper used for recording P that is sent here by paper feeder by electrostatic interaction.That is, carry out transfer process by the first transfer printing device 7 and the second transfer printing device 8.
Around photoreceptor 1, be provided with clearer 5 between image-carrier 6 and the charged device 2.Clearer 5 is removed the cleaning of remaining carbon dust on the photoreceptor 1.
The right-hand fuser 9 that is provided with of the second transfer printing device 8 in the drawings.Paper used for recording P transports to fuser 9 from the second transfer printing device 8 by moving belt 10.Fuser 9 makes the carbon dust picture that is transferred on paper used for recording P heat fused and make it photographic fixing on paper used for recording P.That is, carrying out photographic fixing handles.Below moving belt 10, pass through the second transfer printing device 8 many times in order to make paper used for recording P, be equipped with and transport path 11 again.And be provided with in the exit of fuser 9 paper used for recording P sent back to and transport path 11 again or its separation vessel of sending as the image of finishing.
On above-mentioned electrophotographic copier, except can common paper (opaque) goes up printing image, also using the slide printing image of overhead type projector (OHP) usefulness.When making the carbon dust picture on slide, during photographic fixing,, must make the fusing fully on slide of colored carbon powder picture, and it is had an even surface, to guarantee light transmission in order to improve the repeatability of form and aspect.And as carbon dust is melted fully to guarantee the method for light transmission, generally be to make the fixing time in the photographic fixing processing relatively be longer than common paper.Therefore, above-mentionedly transport path 11 again and repeatedly obtain time that carbon dust is melted fully by it is returned by fuser 9.
Except above-mentioned example, the electrophotographic copier that also has is by the transparent this point of paper used for recording P is detected, and slows down fixation rate automatically, makes it be slower than the fixation rate of common paper, prolongs fixing time with this, improves the molten state of carbon dust.
Yet traditional electrophotographic copier is transporting paper used for recording once more to carry out the occasion of repeatedly photographic fixing to fuser, and what must be provided with that length and paper used for recording size lead to fuser accordingly transports path 11 again.That is, transporting path 11 again must have the paper used for recording rear end and enter length on the path till the fuser once more to the paper used for recording front end fully after fuser discharge to finish.Thereby, need length corresponding with the paper used for recording size transport the path.Cause copying machine body bulky, cost an arm and a leg.
In addition, slowing down the occasion that fixation rate carries out photographic fixing,, must make the travelling speed even variation of whole paper used for recording in order to prevent the flexible carbon dust picture confusion (image deterioration) that causes of paper used for recording at carriage direction.
Thereby, when slowing down fixation rate, must when slowing down photographic fixing roller rotational speed, slow down the belt rotational speed of image-carrier 6.That is, colored carbon powder in the pattern of the pattern of photographic fixing on the common paper and photographic fixing on slide, the control that whole electrofax is handled is very complicated.Particularly just carrying out after the mode switch, be difficult to obtain the optimized electronic photograph treatment conditions (physical parameter) that adapt with each image taking speed, therefore, can destroy the stability of picture quality.
In addition, general commercially available OHP has all thickness with slide, and the required fixing conditions of the best transparency of various slide acquisition has nothing in common with each other.So on thicker slide, during photographic fixing, carry out 3 to 4 times more than photographic fixing action repeatedly, and all will transport path 11 at every turn by long paper used for recording, can stay scar on the slide surface, cause deterioration in image quality.
The present invention is just in order to address the above problem, purpose be to provide a kind of image etc. that can obtain on the slide must have the image of light transmission, control that electrofax is handled easily, can prevent from when the photographic fixing roller reverse, to contact with image carrier by the remaining carbon dust pollution on the image because of slide, and prevent the fixing device of the electrophotographic copier that printing speed is slack-off.
To achieve these goals, technical scheme 1 of the present invention is a kind of fixing device of electrophotographic copier, it is the fixing device that after the carbon dust behind the latent electrostatic image developing is looked like to be transferred to the printing output medium, makes the electrophotographic copier of its heat fixer, have when above-mentioned printing output medium be the back and forth movement device that overhead type projector (OHP) makes during with slide the photographic fixing roller of above-mentioned fixing device just change and reverse and carry out the heating for multiple times photographic fixing, be characterized in, had with transfer printing the paper used for recording guide portion of the above-mentioned printing output medium of carbon dust, and had from being located at above-mentioned paper used for recording guide portion midway to the fixing device guiding, the paper used for recording that the opening that when the photographic fixing roller reverses the rear end of above-mentioned printing output medium is imported extends to form is dodged and is waited for the path.
Technical scheme 3 of the present invention is in the fixing device of the electrophotographic copier of scheme 1, and having can be according to the kind of slide and only change the structure of above-mentioned photographic fixing roller speed when above-mentioned photographic fixing roller reversing.
Simple declaration to accompanying drawing
Fig. 1 represents the cage structure of wanting of electrophotographic copier of the present invention.
Fig. 2 illustrates the action of the invention process form 1.
Fig. 3 is the chart that concerns an example between the speed of the slide thickness of expression example 2 when reversing with the heating roller.
Fig. 4 represents the summary of the fixing device part of the invention process form 3.
Fig. 5 illustrates the action of the invention process form 3.
Fig. 6 represents the summary of the fixing device part of the invention process form 4.
Fig. 7 is the cut-open view of conditional electronic photorepeater.
Below in conjunction with description of drawings example of the present invention.
Example 1
Fig. 1 represents the cage structure of wanting of electrophotographic copier of the present invention.1～7 is identical with the structural member that illustrates in above-mentioned conventional example among the figure.
In the inboard of image-carrier 6, CD-ROM drive motor 6b is installed.CD-ROM drive motor 6b passes through driven roller 6a and transmitting torque, makes image-carrier 6 circulations.Transfer printing supporting roller 6c struts image-carrier 6, also is an electrode of aftermentioned transfer device simultaneously.
Clamping paper used for recording P between transfer printing roller 13 and the image-carrier 6, and and transfer printing supporting roller 6c between can connect can from.In case transfer printing roller 13 moves to transfer printing supporting roller 6c direction, promptly with image-carrier 6 contact history paper P.Connecing of transfer printing roller 13 from controlled 15 control of action.Additional DC voltage between transfer printing roller 13 and transfer printing supporting roller 6c.Because the electric field action of this DC voltage, the carbon dust on the image-carrier 6 looks like to be transferred on the paper used for recording P.That is, roller 13 constitutes second transfer device.
The left of transfer printing roller 13 is provided with fixing device 14 in the drawings.Fixing device 14 by interior establish well heater 14a and the heating roller 14b that plays a role as the photographic fixing roller, with the photographic fixing supporting roller 14c of heating roller 14b butt, and the CD-ROM drive motor 14d that heating roller 14b is driven constitute.Controlled 15 control of CD-ROM drive motor 14d makes heating roller 14b rotation.The positive and negative rotation of 15 pairs of control parts heating roller 14b, rotational speed, and number of revolutions (rotational time) control.
In the both sides of fixing device 14 foreign side, respectively be provided with 2 auxiliary rollers 16,17. Auxiliary roller 16,17 is synchronous, equidirectional with heating roller 14b, rotate with same circumference speed. Auxiliary roller 16,17 and paper used for recording P can connect can from.Between transfer printing roller 13 and fixing device 14, be provided with paper used for recording P from the paper used for recording guide portion 18 of transfer printing roller 13 to fixing device 14 guiding.
Near the both sides of fixing device 14, be provided with sensor 19,20.The front-end and back-end of 19,20 couples of paper used for recording P of sensor or slide Q described later are detected.
On the electrophotographic copier of above-mentioned structure, when photographic fixing on common paper, be never illustrated paper used for recording box is transported and the paper used for recording P that comes by between transfer printing roller 13 and the transfer printing supporting roller 6c, and making transfer printing roller 13 and transfer printing supporting roller 6c butt, the power by electric field is transferred to the carbon dust on the image-carrier 6 on the paper used for recording P.
Transfer printing the paper used for recording P of carbon dust pass through in limit heating edge between heating roller 14b and the photographic fixing supporting roller 14c by paper used for recording guide portion 18 back, in this course, carbon dust melts and photographic fixing on paper used for recording P.At this moment auxiliary roller 17 breaks away from paper used for recording P, and the carbon dust of photographic fixing can not confused by auxiliary roller 17.Through such process, the electrofax printing processing on common paper finishes.
And,, must make carbon dust fusing fully on slide in order to improve the repeatability of form and aspect in the occasion of using OHP with slide Q.And, can cause photographic fixing underheat if use the photographic fixing processing time identical with above-mentioned common paper.Therefore in the present invention, be from other sensor or controlled condition configuration part this information of photographic fixing on slide to be imported control part 15 in advance.In case and sensor 20 detects the rear end by the slide of fixing device 14, just makes heating roller 14b reversing, makes slide once more by fixing device 14 inside, and it is heated once again.Finish when sensor 19 detects the 2nd heat fixer, promptly make heating roller 14b do reversing (just changeing) once more, proceed heat fixer.
Below with Fig. 2 its state is described.
(a) with transfer printing roller 13 carbon dust on the image-carrier 6 is transferred on the slide Q.The front end of slide Q is transported to fixing device 14, and the just commentaries on classics by heating roller 14b is with the carbon dust heat fused.Auxiliary roller 17 is positioned at the position that breaks away from slide Q.
(b) in case sensor 20 detects the rear end of slide Q, the rotation of heating roller 14b stops and reversing.
(c) owing to heat the reversing of roller 14b, carbon dust is heated fusing, in case sensor 19 detects the front end of slide Q, the reversing of heating roller 14b stops.At this moment, auxiliary roller 17 contacts with slide Q, and transfer printing roller 13 leaves image-carrier 6.
(d) then, the rotation of heating roller 14b turns back to normal rotation.Carbon dust on the slide Q repeatedly pressurizeed and heating for multiple times in transported to row's paper one side.The carbon dust that is transferred on the slide Q fully melts, and obtains the necessary transparency.And slide Q is discharged from fixing device 14, and the photographic fixing processing finishes.
(e) for the OHP slide of variety classes, thickness etc., can increase photographic fixing and come and go number of times, carbon dust is melted fully.
Example 2
Because OHP has multiple thickness etc. with slide, so adopt the integral multiple of a kind of heat time heating time described in the above-mentioned example 1 may not necessarily realize best carbon dust fusing photographic fixing.Form heating sometimes, even can cause the slide distortion.For this reason, though can change the rotational speed of heating roller 14b according to the kind of slide, described with regard to the problem of conventional art as the front, the speed change of transfer printing roller can cause the image confusion, so be difficult to realize.Therefore, the present invention just when 14 reversings of heating roller the kind according to slide Q speed is become the rotational speed that adapts to most with this kind, so both can realize the photographic fixing of fusing fully of carbon dust, can prevent that again slide Q is out of shape.An example that concerns between speed when Fig. 3 represents slide thickness and the reversing of heating roller.
Example 3
Fig. 4 represents the fixing device part summary of the invention process form 3.6,13,14,18～20 is all identical with illustrated structural member in the above-mentioned example 1 among the figure.It is not necessarily synchronous with the peripheral speed of heating roller 14b to discharge roller 21. Sensor 19,20 is respectively L1, L2 apart from the distance of the butt position of heating roller 14b and photographic fixing supporting roller 14b.This is for the influence to sensor 19,20 of the heat that reduces heating roller 14b, heats simultaneously in the roller 14b and will adorn well heater 14a, also needs certain diameter.
The action of example 3 is described below in conjunction with Fig. 5.Fig. 5 (a) is illustrated in the state that front end that slide Q goes up transfer printing carbon dust and slide Q has entered fixing device.Fig. 5 (b) expression slide Q transport from this state upper left side to figure and the rear end of slide Q by sensor 19 detected states.Because sensor 19 is known apart from the distance L 1 of the butt position of heating roller 14b and photographic fixing supporting roller 14c, and know the rotational speed of heating roller 14b, so after sensor 19 detects the rear end of slide Q, slide Q only is transported at the appointed time, heating roller 14b stops, and heats roller 14b reversing then.That is, under the state of heating roller 14b and the inadequate clamping slide of photographic fixing supporting roller 14c Q rear end, heating roller 14b reversing.Fig. 5 (c) represents that promptly heating roller 14b reversing back sensor 20 detects the state of slide Q front end.From this state, with above-mentioned same, in heating roller 14b and the inadequate clamping slide of photographic fixing supporting roller 14c Q front end, the reversing of heating roller 14b stops, and just switching to changes.
Like this, slide Q in clamping all the time between heating roller 14b and photographic fixing supporting roller 14c, and makes slide Q make back and forth movement, thus the auxiliary roller 16,17 in the above-mentioned example 1 need be set, but the structure of simplification device helps equipment miniaturization.
Example 4
Fig. 6 represents the summary of the fixing device part of the invention process form 4.6,13,14,18～21 is identical with the structural member described in the above-mentioned example 3 among the figure.Be provided with paper used for recording midway at the opening 18a place that paper used for recording guide portion 18 forms continuously and dodge wait path 22.
Below its action of explanation.By transfer printing roller 13 from image-carrier 6 transfer printings the slide Q of carbon dust, its front end is sent to fixing device 14.Fig. 6 (a) represents this state.At this moment, opening 18a has end difference.Can skip opening 18a for the front end of slide Q.And in case from the reversing photographic fixing that photographic fixing begins to become heating roller 14b that is rotated in the forward of heating roller 14b, the rear end that is reversed the slide Q that transports i.e. end difference by opening 18a enters paper used for recording and dodges and wait for path 22.
Like this, dodge wait path 22 owing to make the rear end of slide Q enter paper used for recording when heating roller 14b reversing, image-carrier 6 can not touched in the rear end of slide Q, can prevent the remaining carbon dust pollution image on the image-carrier 6.Do not wait for path 22 if there is paper used for recording to dodge, when the fixing time on slide Q is long, even will be on image-carrier 6 carbon dust of next image be developed, also the rear end because of slide Q can contact and destroy developed image with image-carrier 6, could begin the development of next image and must wait for that photographic fixing finishes, thereby can make printing speed slack-off.And dodge and wait for path 22 by entering paper used for recording, can not be subjected to the influence that photographic fixing handles and on image-carrier 6, carry out the development treatment of next image.
In sum, technical scheme 1 of the present invention is that OHP is when using slide at the printing output medium, just changeing and reverse and carry out the heating for multiple times photographic fixing by the photographic fixing roller that makes fixing device, carbon dust is fully melted, can obtain the light transmission preferable image on slide at OHP.
Technical scheme 3 of the present invention can only change the speed of photographic fixing roller according to the kind of slide when the photographic fixing roller reverse, so can not take place OHP is heated with crossing of slide during photographic fixing, can prevent the OHP thermal deformation of slide.
Technical scheme 5 of the present invention has when the photographic fixing roller reverses the OHP of importing to be dodged with the paper used for recording of slide rear end and waits for the path, so OHP can not contact with image-carrier with the rear end of slide, can prevent by the remaining carbon dust pollution on the image-carrier.
Claims (4)
1. the fixing device of an electrophotographic copier is the fixing device that makes the electrophotographic copier of its heat fixer after the carbon dust behind the latent electrostatic image developing is looked like to be transferred to the printing output medium,
Have when described printing output medium be the back and forth movement device that overhead type projector (OHP) makes during with slide the photographic fixing roller of described fixing device just change and reverse and carry out the heating for multiple times photographic fixing,
It is characterized in that having had with transfer printing the paper used for recording guide portion of the described printing output medium of carbon dust to the fixing device guiding,
And have from be located at described paper used for recording guide portion midway, the paper used for recording that extends to form of the opening that when the photographic fixing roller reverses the rear end of described printing output medium imported dodges and waits for the path.
2. the fixing device of electrophotographic copier according to claim 1 is characterized in that, has to change the structure that photographic fixing comes and goes action frequency according to the kind of slide.
3. the fixing device of electrophotographic copier according to claim 1 is characterized in that, having can be according to the kind of slide and only change the structure of the speed of described photographic fixing roller when described photographic fixing roller reversing.
4. according to the fixing device of each described electrophotographic copier in the claim 1 to 3, it is characterized in that, a plurality of sensors that have the front and back that are located at the photographic fixing roller, OHP was detected with having or not of slide,
The sensor is to OHP detecting from having to stateless with slide, do not remove that at above-mentioned photographic fixing roller OHP is made the rotation of above-mentioned photographic fixing roller and transports the OHP slide in the stipulated time with the slide clamping, change the sense of rotation of above-mentioned photographic fixing roller then.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP243112/1996 | 1996-09-13 | ||
| JP243112/96 | 1996-09-13 | ||
| JP8243112A JPH1091033A (en) | 1996-09-13 | 1996-09-13 | Fixing device for electrophotographic printer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1177126A CN1177126A (en) | 1998-03-25 |
| CN1099623C true CN1099623C (en) | 2003-01-22 |
Family
ID=17098983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97104646A Expired - Fee Related CN1099623C (en) | 1996-09-13 | 1997-05-23 | Fixing device for electronic photoing copying-press |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0829776A1 (en) |
| JP (1) | JPH1091033A (en) |
| KR (1) | KR19980024077A (en) |
| CN (1) | CN1099623C (en) |
| TW (1) | TW334527B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100480887C (en) * | 2003-07-11 | 2009-04-22 | 株式会社东芝 | Method and apparatus for forming image |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5581302B2 (en) * | 2011-12-16 | 2014-08-27 | 京セラドキュメントソリューションズ株式会社 | Image forming apparatus |
| US9527316B2 (en) * | 2015-02-25 | 2016-12-27 | Seiko Epson Corporation | Printing apparatus |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02109064A (en) * | 1988-10-18 | 1990-04-20 | Konica Corp | Color image forming device |
| JPH02114275A (en) * | 1988-10-25 | 1990-04-26 | Konica Corp | Color image forming device |
| US5138392A (en) * | 1990-04-25 | 1992-08-11 | Minolta Camera Kabushiki Kaisha | Image forming apparatus with a fixing device capable of fixing a transparent member |
| JP3104240B2 (en) * | 1990-04-25 | 2000-10-30 | ミノルタ株式会社 | Electrophotographic equipment |
| JPH04313784A (en) * | 1991-02-19 | 1992-11-05 | Ricoh Co Ltd | Electrophotographic device |
| GB9119487D0 (en) * | 1991-09-11 | 1991-10-23 | Xerox Corp | Reprographic apparatus |
| JPH0580672A (en) * | 1991-09-19 | 1993-04-02 | Hitachi Ltd | Fixing device |
| US5325165A (en) * | 1992-03-10 | 1994-06-28 | Sharp Kabushiki Kaisha | Electrophotographic printing machine providing both monochrome and color images |
-
1996
- 1996-09-13 JP JP8243112A patent/JPH1091033A/en active Pending
-
1997
- 1997-05-16 TW TW086106516A patent/TW334527B/en active
- 1997-05-23 CN CN97104646A patent/CN1099623C/en not_active Expired - Fee Related
- 1997-07-02 KR KR1019970030623A patent/KR19980024077A/en not_active Application Discontinuation
- 1997-07-03 EP EP97111165A patent/EP0829776A1/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100480887C (en) * | 2003-07-11 | 2009-04-22 | 株式会社东芝 | Method and apparatus for forming image |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1091033A (en) | 1998-04-10 |
| CN1177126A (en) | 1998-03-25 |
| TW334527B (en) | 1998-06-21 |
| KR19980024077A (en) | 1998-07-06 |
| EP0829776A1 (en) | 1998-03-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1105980A (en) | Apparatus for producing collated copies in page sequential order | |
| US5196893A (en) | Image forming method and apparatus having intermediate transfer member which is movable toward and away from a photoconductor | |
| CN1099623C (en) | Fixing device for electronic photoing copying-press | |
| JPS61152463A (en) | Electronic photography serial printer | |
| EP0651298A2 (en) | Image forming apparatus and oil cleaning member | |
| EP0464804B1 (en) | Electrophotographic process and apparatus | |
| JPH05265271A (en) | Color image forming device capable of switching driving speed | |
| CN1113276C (en) | Color image forming apparatus and method of electrophotographic type | |
| US4928136A (en) | Image forming apparatus | |
| JP2836377B2 (en) | Transfer material transfer control device | |
| JP3584570B2 (en) | Color image forming equipment | |
| JPH07261478A (en) | Image forming device | |
| JPH047516B2 (en) | ||
| JPH04102866A (en) | Image forming device | |
| JP3250913B2 (en) | Image forming device | |
| US5049936A (en) | Electrophotographic copier/duplicator having dual imaging apparatus | |
| JPH1097144A (en) | Image forming device and method for image forming | |
| JPH06271130A (en) | Image forming device | |
| JPH02148058A (en) | Transfer drum driving mechanism | |
| JPH09281833A (en) | Image forming device | |
| JPH07181774A (en) | Development control system | |
| JP2002062744A (en) | Image forming apparatus | |
| JPH07199680A (en) | Image forming device | |
| JPH03263065A (en) | Electrostatic charging device | |
| JP2000147853A (en) | Color image forming device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |