EP1156390A2 - Elektrostatische Bildentwicklungsvorrichtung - Google Patents
Elektrostatische Bildentwicklungsvorrichtung Download PDFInfo
- Publication number
- EP1156390A2 EP1156390A2 EP01110191A EP01110191A EP1156390A2 EP 1156390 A2 EP1156390 A2 EP 1156390A2 EP 01110191 A EP01110191 A EP 01110191A EP 01110191 A EP01110191 A EP 01110191A EP 1156390 A2 EP1156390 A2 EP 1156390A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- toner
- toner unit
- magnetic
- unit
- drum
- 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
- 239000002245 particle Substances 0.000 claims abstract description 28
- 239000000203 mixture Substances 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 description 3
- 241000237858 Gastropoda Species 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
- G03G15/75—Details relating to xerographic drum, band or plate, e.g. replacing, testing
- G03G15/751—Details relating to xerographic drum, band or plate, e.g. replacing, testing relating to drum
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G13/00—Electrographic processes using a charge pattern
- G03G13/06—Developing
- G03G13/08—Developing using a solid developer, e.g. powder developer
- G03G13/09—Developing using a solid developer, e.g. powder developer using magnetic brush
-
- 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
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/09—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
- G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
- G03G2221/1606—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for the photosensitive element
Definitions
- the present invention relates to an apparatus for electrostatic image development and in particular a device in which a magnetic brush with a photoconductor drum cooperates.
- Development devices and methods using a magnetic brush to place toner on the photoconductor have been known for years.
- Development devices and methods using a magnetic brush which has hard magnetic carrier particles are in US 4,473,029 and US 4,546,060.
- the devices disclosed in these patents feature a rotating housing that is made with a mixture of hard magnetic Carrier particles and toner coated, a rotating magnetic core with a variety of magnetic poles, which are arranged within the housing, and a thin, flat, photoconductive film.
- the rotating magnetic core brings the hard magnetic Carrier particles on the surface of the case, resulting in increased movement and increased Contact of the toner with the photoconductive film ensures.
- the two-component dry developer composition disclosed in US 4,546,060 includes charged toner particles and magnetic carrier particles opposite charge comprising (a) a magnetic material which has hard magnetic properties, such as that of a coercivity of at least 30 mT are marked and (b) an induced magnetic moment of at least 200 mC / kg if they are in a field of 100 mT Gauss.
- a magnetic application element related which has a rotatable magnetic core and an outer includes non-magnetizable housing for developing electrostatic images.
- Photoconductor drums are state of the art, but are not yet included Magnetic brushes that have hard magnetic carrier particles have been used.
- the reason that photoconductors have not been used is largely because they are are much stronger than film photoconductors and the increasing thickness of the magnetic brush Surface of the drum. Conversely, a decreasing thickness of the Magnetic brush cause insufficient contact with the photoconductor and thus too lead to poor image development.
- the invention is accordingly based on the object of an improved device to create an electrostatic image.
- an apparatus for developing a electrostatic image a photoconductor drum and a magnetic brush holding the photoconductor touched and has a mixture of toner and hard magnetic carrier particles.
- a toner unit comprises one Support rail, a slide rail that lies in the support rail, the slide rail so is adapted to receive the toner unit, a pair of dowel pins, the Slide rail positioned the toner unit in relation to the dowel pins and one Actuator that aligns the toner unit with the dowel pins.
- FIG. 1 is a toner unit according to the invention 10, which comprises a photoconductor drum 12 and a magnetic brush 14, which a mixture of toner and hard magnetic carrier particles in contact with the outer Surface of the photoconductor drum 12 brings.
- the magnetic brush 14 comprises a housing 16, preferably made of non-magnetizable material and a core 18 which is rotating Has a variety of magnetic poles.
- the photoconductor drum 12 rotates in the Direction indicated by arrow 20, the sleeve 16 rotates in the direction indicated by arrow 22, and core 18 rotates in the direction indicated by arrow 24.
- the toner unit 10 and the photoconductor drum 12 are attached to the frame 28, each as needed for a special copier or printer application Printer is designed.
- the toner unit 10 comprises a sleeve 16, a collecting basin 30, four screws 32, which are rotatably mounted in the catch basin 30, one Transport roller 34, which is arranged above the screws 32 next to the sleeve 16, and a Filling unit 36, which has a fixed perforated tube 38 and a filling brush 40 within tube 38 which rotates in the direction indicated by arrow 42.
- the padding unit 36 directs toner into the toner / carrier particle mixture according to the Information from a toner concentration monitor 44 to determine the weight ratio of Toners and carrier particles, e.g. Maintain 1/10. Some of these parts can ever be added or removed after the specific application.
- the additional Mixing through the four-screw system improves mixing and uniformity Toner distribution across the entire image width.
- the toner concentration gradients are preferably minimized and represent only a few percent.
- the mixture of hard magnetic carrier particles and toner covers the Snails 32 to a level that is approximately the level of the bottom of the Transport roller 34 corresponds.
- the screws 32 include a variety of angled paddles 46 which are attached to the shafts 48.
- the mixers mix them Carrier particles and the toners to create friction charge and homogeneity and around a generally equal level of toner / carrier particle mixture in the To create catch basin 30.
- the transport roller 34 rotates in the direction of the arrow 50 indicated direction and lifts the mixture from the collecting basin 30 to the sleeve 16.
- FIG. 2 shows an enlarged view of the gap area from FIG. 1, which shows where the toner / carrier particle mixture 52 surrounding the sleeve 16, the photoconductor drum touched.
- the flow of the toner / carrier particle mixture 52 has a thickness T and touches the drum 12 over a length L.
- the flow shown in Fig. 2 is very high desirable.
- FIG. 3 shows an undesired flow of the toner / carrier particle mixture 52, thereby creating a back pressure area 54. It is believed that a Backflow area 54 arises when the flow of the toner / carrier particle mixture 52 increases is the amount that flows through the gap between the sleeve 16 and the roller 12 can. The backflow area can interfere with image development on the drum 12 cause and also damage the surface of the drum 12. The backwater area 54 is not passive because the rotating core 18 tends to reduce the mass of material in the To back pressure area 54 with active force in the gap.
- Fig. 1 it can be seen how the register position of the housing 16 to the drum 12 is controlled by a pair of dowel pins 56 on each side of the drum 12 are attached.
- the drum 12 includes a shaft 58 which is in a pair of bearings 60 is attached, which in turn are attached to the frame 28.
- the toner unit 10 includes a pair of registration fittings 62 on each end into which the pins 56 fit.
- the toner unit 10 is in register fixed with the pins 56, whereby they during the operation of the drum 12 and Magnetic brush 14 is immobilized.
- Registration fitting 62 is largely hidden behind the toner unit 10. A better reproduction can be found in FIG. 12.
- the centers of rotation lie of the core 18 and the sleeve 16 not one above the other, but the Centers of rotation of the core 18 in relation to the center of rotation of the sleeve 16 towards the drum 12 (eccentric), forming an area 64 in which the Inner surface of the sleeve 16 is closest to the outer surface of the core 18 (slightly below the point at which drum 14 and sleeve 16 are closest.
- Dosing element 66 is arranged opposite the area 64, in which the sleeve 16 on farthest from the core 18. The dosing element 66 doses a predetermined one Thickness of the toner / carrier particle mixture on the sleeve 16.
- an imaginary line runs from the area 64 to the dosing element 66 horizontally, and the two elements lie at a 180 ° angle to each other (one element at 9 o'clock and the other at 3 o'clock Position).
- the rotating magnetic core 18 can lose eddy current in the photoconductor drum 12 cause.
- a combination of a relatively fine magnetic pole frequency e.g. a 14-pole Arrangement with about 4 cm [1.6 inch] diameter
- relatively thin wall of 4 to 8 mm for the photoconductor drum 12 reduces the eddy current losses that arise.
- a relatively hard aluminum (T3 or T6) Drum wall the conductivity of the wall and thus the eddy current losses.
- the dosing element 66 is on both Winged ends 67 which the flow of the toner / carrier particle mixture in the Reduce near the ends of the photoconductor drum 12.
- the river this way too reduce, prevents damage to the ends of the development zone due to the edge effects that locally increase the flow. Further Reductions in the formation of backwater areas at the ends of the development zone are achieved by small permanent magnets on the dosing elements 66 on the Position of the wing 67 can be arranged.
- a DC bias is applied to the sleeve 16 to apply an electric field generate that brings the toner onto the surface of the photoconductor drum 12.
- a AC bias can also be used to control the rate of development and thus also to improve the level and consistency of the image quality.
- Full area development systems will create an electrical bias between the Base layer of the photoconductor and the sleeve of the developer unit applied. Becomes a High frequency or high voltage (e.g. 1000 to 2000 Hertz and 500 to 1500 volts effective voltage) signal is added to the constant bias, the Development rate increased significantly.
- the carrier arrangement 100 is a carrier arrangement 100 according to an embodiment of the Invention shown, which is used together with the toner unit 10 (Figs. 1 and 10) can be used to precisely register the toner unit with the photoconductor drum 12 (Fig. 1 and 10).
- the carrier arrangement 100 compensates for displacements of the Photoconductor drum 12 out.
- the carrier unit comprises a support rail 102 and a slide rail 104 formed by the three rods 106, 108 and 110 is held and led.
- the support rail is fixed with a structure, e.g. the Frame 28 of Fig. 1 connected.
- the Slide rail 104 two horizontally elongated holes 132 that the outer Pick up rods 106 and 110 and a slightly oversized hole 134.
- the middle pole 108 restricts the movement of the slide rail 104 in the longitudinal direction while it allows the slide rail to move laterally along the rod 108.
- the two outside lying bars 106 and 110 serve to maintain the flatness of the Slide rail 104.
- the slide rail 104 is attached to the side plate 116.
- a Eccentric shaft 112 is driven by an electric servomotor 114, is between two parts of the side plate 116 attached and provides the device for positioning the Slide rail 104 ready in relation to the photoconductor drum 12.
- the electric one Actuator 114 is fixedly attached to the same support structure as the support rail 102
- Eccentric shaft 112 comprises an eccentric bearing 113.
- a load arm 122 is also on the Side plate 116 attached and is about a vertical axis Lift arm pivot point 124 pivoted.
- the position of the eccentric shaft 112 is determined by the Use of two solid-state microswitches 126 and one eccentric positioning coupling 118 controlled.
- the eccentric shaft 112 will move from a parked position to an employed position rotated, it presses against a determined eccentric locking plate 120, which on the Side plate 116 is attached.
- the movement pushes the slide rail 104 into its position Position (see FIG. 6), as indicated by arrow 142. While the slide rail 104 in their is brought into position, hits the load arm 122, which on the side plate 116th is attached to the toner unit 10 (Figs. 1 and 10) and is deflected, one Spring force is created, the toner unit 10 in register with the dowel pins 56th aligns (Fig. 1 and 10).
- the determined eccentric locking plate 120 causes one Force so that the eccentric shaft 112 is not rotated away when the device is in the position.
- 6 to 9 is a positive vertical lifting force by using reached two angled pressure blocks 128, which are attached to the load arm 122 and a mating angled wedge 130 attached to the toner unit 10 (see FIG. 1 and 10) is attached.
- the pressure blocks 128 fit through a pair of windows that are in the Side plate 116 are provided.
- an angled pressure block 136 is at Bottom of the toner unit 10 attached and a mating pressure plate 138 is on Frame of the machine, e.g. the frame 28 of FIG. 1 attached.
- the angled one Pressure block 136 and the corresponding pressure block 138 create an additional one vertical lifting force.
- the net force is directed up and down on the drum 12, as indicated by arrow 140 in FIG. 1. As shown in Figs.
- the Registration fittings 62 attached to each end of the toner unit 10 preferably pointed notches 63, and the dowel pins 56 are in the notches 63 recorded when the toner unit is moved in the direction of arrow 140.
- the Force that holds the toner unit 10 in position may exceed approximately 450 N and lie in a particular embodiment at approximately 700 N.
- the slide rail 104 includes a track 105 in which the toner unit 10 while in the Apparatus is inserted, lies and is guided until all electrical and mechanical Interfaces are connected.
- the slide rail 104 and the track 105 serve the To place the toner unit 10 in relation to the pins 56 exactly, so that when the Eccentric shaft 12 is activated, the dowel pins 56 are received in the notches 63.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Dry Development In Electrophotography (AREA)
- Magnetic Brush Developing In Electrophotography (AREA)
- Ink Jet (AREA)
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
Abstract
Description
- Fig. 1
- eine Seitenansicht einer erfindungsgemäßen Entwicklervorrichtung einschließlich einer Querschnittsansicht einer erfindungsgemäßen Tonereinheit,
- Fig. 2
- eine vergrößerte Ansicht einer erfindungsgemäßen Entwicklungszone,
- Fig. 3
- eine vergrößerte Ansicht einer Entwicklungszone mit einem Rückstaubereich,
- Fig. 4
- eine auseinandergezogene perspektivische Ansicht der Tonereinheit aus Fig. 1,
- Fig. 5
- eine auseinandergezogene perspektivische Ansicht der Tonereinheit aus Fig. 1 von deren entgegengesetztem Ende aus gesehen,
- Fig. 6
- eine Seitenansicht der erfindungsgemäßen Tonereinheitträgeranordnung,
- Fig. 7
- eine perspektivische Ansicht der Trägeranordnung aus Fig. 6,
- Fig. 8
- eine Ansicht einer seitlichen Draufsicht auf eine Gleitschiene, die in der Trägeranordnung aus Fig. 6 angeordnet ist,
- Fig. 9
- eine perspektivische Ansicht der Trägeranordnung aus Fig. 6 von dem entgegengesetzten Ende, zu dem in Fig. 7 dargestellten Ende,
- Fig. 10
- eine Seitenansicht der Trägeranordnung aus Fig. 6 mit der Tonereinheit aus Fig. 1 registerhaltig mit einer Fotoleitertrommel ausgerichtet,
- Fig. 11
- eine vergrößerte Ansicht eines Passlaufreifens und eines Passstiftes in einem nicht-registerhaltigen Zustand, und
- Fig. 12
- eine vergrößerte Ansicht eines Passlaufreifens und eines Passstiftes in einem registerhaltigen Zustand.
- 10
- Tonereinheit
- 12
- Fotoleitertrommel
- 14
- Magnetbürste
- 16
- Hülse
- 18
- Kern
- 20
- Pfeil
- 22
- Pfeil
- 24
- Pfeil
- 28
- Rahmen
- 30
- Auffangbecken
- 32
- Schnecken
- 34
- Transportwalze
- 36
- Auffülleinheit
- 38
- perforierte Röhre
- 40
- Auffüllbürste
- 42
- Pfeil
- 44
- Tonerkonzentrationsmonitor
- 46
- abgewinkelte Paddel
- 48
- Welle
- 50
- Pfeil
- 52
- Toner-/Trägerpartikelmischung
- 54
- Rückstaubereich
- 56
- Passstifte
- 58
- Welle
- 60
- Lagerpaar
- 62
- Registrierungsbeschlag
- 63
- Spitzkerbe
- 64
- Bereich
- 66
- Dosierelement
- 67
- Flügel
- 100
- Trägeranordnung
- 102
- Stützschiene
- 104
- Gleitschiene
- 105
- Spur
- 106, 108, 110
- Stangen
- 112
- Exzenterwelle
- 113
- Exzenterlager
- 114
- Stellmotor
- 116
- Seitenplatte
- 118
- Exzenterpositionierkupplung
- 120
- Exzentersicherungsplatte
- 122
- Lastarm
- 124
- Lastarmschwenkpunkt
- 126
- Festkörpermikroschalter
- 128
- Andrückblock
- 130
- abgewinkelter Keil
- 132
- langgestreckte Löcher
- 134
- übergroße Löcher
- 136
- Andrückkonsole
- 138
- Andrückplatte
- 140
- Pfeil
- 142
- Pfeil
Claims (2)
- Vorrichtung zum Entwickeln eines elektrostatischen Bildes (10) mit einer Fotoleitertrommel (12) und einer Magnetbürste (14) in Kontakt mit der Fotoleitertrommel,
dadurch gekennzeichnet, dass
die Magnetbürste (14) eine Mischung (52) aus Toner und hartmagnetischen Trägerpartikeln auf die Fotoleitertrommel (12) aufbringt - Träger für eine Tonereinheit (10) mit
einer Stützschiene (102);
einer Gleitschiene (104), die in der Stützschiene (102) liegt, wobei die Gleitschiene (104) so angepasst ist, dass sie die Tonereinheit (10) aufnimmt; ein Paar Passstifte (56), wobei die Gleitschiene (104) die Tonereinheit (10) im Verhältnis zu den Passstiften (56) positioniert; und
ein Stellglied (114), das die Tonereinheit (10) in Registerhaltigkeit mit den Passstiften (56) bringt.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US20488100P | 2000-05-17 | 2000-05-17 | |
US204881P | 2000-05-17 | ||
US09/574,425 US6263177B1 (en) | 2000-05-19 | 2000-05-19 | Document printer/copier with decoupleable drum-support member |
US574425 | 2000-05-19 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1156390A2 true EP1156390A2 (de) | 2001-11-21 |
EP1156390A3 EP1156390A3 (de) | 2004-09-08 |
EP1156390B1 EP1156390B1 (de) | 2007-09-26 |
Family
ID=26899868
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01110191A Expired - Lifetime EP1156390B1 (de) | 2000-05-17 | 2001-05-08 | Elektrostatische Bildentwicklungsvorrichtung |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1156390B1 (de) |
DE (3) | DE10122237A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7546070B2 (en) | 2004-07-26 | 2009-06-09 | Oce Printing Systems Gmbh | Arrangement and method for inking an applicator element of an electrophotographic printer or copier |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5538593A (en) * | 1978-09-13 | 1980-03-18 | Minolta Camera Co Ltd | Positioning device in electrophotographic copier |
JPS5764763A (en) * | 1980-10-08 | 1982-04-20 | Minolta Camera Co Ltd | Developer supporting device |
JPS6076771A (ja) * | 1983-10-04 | 1985-05-01 | Canon Inc | 画像形成装置 |
JPS60177371A (ja) * | 1984-02-24 | 1985-09-11 | Konishiroku Photo Ind Co Ltd | 複写装置等における現像装置の逃避装置 |
US4546060A (en) * | 1982-11-08 | 1985-10-08 | Eastman Kodak Company | Two-component, dry electrographic developer compositions containing hard magnetic carrier particles and method for using the same |
JPS61201273A (ja) * | 1985-03-04 | 1986-09-05 | Canon Inc | 画像形成装置 |
JPH0619321A (ja) * | 1992-06-29 | 1994-01-28 | Canon Inc | 現像装置 |
US5484680A (en) * | 1990-02-28 | 1996-01-16 | Hitachi Metals, Ltd. | Magnetic brush developing method |
JPH1091002A (ja) * | 1996-09-13 | 1998-04-10 | Nec Niigata Ltd | 現像装置 |
US6041203A (en) * | 1999-02-26 | 2000-03-21 | Brother Kogyo Kabushiki Kaisha | Process unit, photosensitive member cartridge, developer cartridge, and image forming apparatus |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1582150A (en) * | 1976-08-18 | 1980-12-31 | Ricoh Kk | Electrophotographic copying machines |
DE2949164A1 (de) * | 1978-12-08 | 1980-06-26 | Canon Kk | Einrichtung zum befestigen und loesen eines gitterartigen, photoempfindlichen mediums |
JPS5713473A (en) * | 1980-06-30 | 1982-01-23 | Fuji Xerox Co Ltd | Drawing device for photosensitive drum |
US4385827A (en) * | 1981-04-15 | 1983-05-31 | Xerox Corporation | High speed duplicator with finishing function |
JPS58181058A (ja) * | 1982-04-19 | 1983-10-22 | Mita Ind Co Ltd | 静電複写機 |
US4952989A (en) * | 1985-04-16 | 1990-08-28 | Sharp Kabushiki Kaisha | Photoreceptor attachment device for an electrophotographic copying machine |
JPH03225371A (ja) * | 1990-01-31 | 1991-10-04 | Tokyo Electric Co Ltd | 電子写真装置 |
JP3298728B2 (ja) * | 1993-11-12 | 2002-07-08 | 株式会社リコー | 画像形成装置 |
JPH08142307A (ja) * | 1994-11-16 | 1996-06-04 | Riso Kagaku Corp | 輪転式印刷機のインキ容器保持装置 |
JP3495250B2 (ja) * | 1998-03-19 | 2004-02-09 | 富士ゼロックス株式会社 | 電子写真装置 |
-
2001
- 2001-05-08 DE DE2001122237 patent/DE10122237A1/de not_active Withdrawn
- 2001-05-08 DE DE50113051T patent/DE50113051D1/de not_active Expired - Lifetime
- 2001-05-08 EP EP01110191A patent/EP1156390B1/de not_active Expired - Lifetime
- 2001-05-09 DE DE2001122411 patent/DE10122411B4/de not_active Expired - Fee Related
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5538593A (en) * | 1978-09-13 | 1980-03-18 | Minolta Camera Co Ltd | Positioning device in electrophotographic copier |
JPS5764763A (en) * | 1980-10-08 | 1982-04-20 | Minolta Camera Co Ltd | Developer supporting device |
US4546060A (en) * | 1982-11-08 | 1985-10-08 | Eastman Kodak Company | Two-component, dry electrographic developer compositions containing hard magnetic carrier particles and method for using the same |
JPS6076771A (ja) * | 1983-10-04 | 1985-05-01 | Canon Inc | 画像形成装置 |
JPS60177371A (ja) * | 1984-02-24 | 1985-09-11 | Konishiroku Photo Ind Co Ltd | 複写装置等における現像装置の逃避装置 |
JPS61201273A (ja) * | 1985-03-04 | 1986-09-05 | Canon Inc | 画像形成装置 |
US5484680A (en) * | 1990-02-28 | 1996-01-16 | Hitachi Metals, Ltd. | Magnetic brush developing method |
JPH0619321A (ja) * | 1992-06-29 | 1994-01-28 | Canon Inc | 現像装置 |
JPH1091002A (ja) * | 1996-09-13 | 1998-04-10 | Nec Niigata Ltd | 現像装置 |
US6041203A (en) * | 1999-02-26 | 2000-03-21 | Brother Kogyo Kabushiki Kaisha | Process unit, photosensitive member cartridge, developer cartridge, and image forming apparatus |
Non-Patent Citations (7)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 004, no. 070 (P-012), 23. Mai 1980 (1980-05-23) -& JP 55 038593 A (MINOLTA CAMERA CO LTD), 18. März 1980 (1980-03-18) * |
PATENT ABSTRACTS OF JAPAN vol. 006, no. 145 (P-132), 4. August 1982 (1982-08-04) -& JP 57 064763 A (MINOLTA CAMERA CO LTD), 20. April 1982 (1982-04-20) * |
PATENT ABSTRACTS OF JAPAN vol. 009, no. 217 (P-385), 4. September 1985 (1985-09-04) -& JP 60 076771 A (CANON KK), 1. Mai 1985 (1985-05-01) * |
PATENT ABSTRACTS OF JAPAN vol. 010, no. 026 (P-425), 31. Januar 1986 (1986-01-31) -& JP 60 177371 A (KONISHIROKU SHASHIN KOGYO KK), 11. September 1985 (1985-09-11) * |
PATENT ABSTRACTS OF JAPAN vol. 011, no. 032 (P-541), 30. Januar 1987 (1987-01-30) -& JP 61 201273 A (CANON INC), 5. September 1986 (1986-09-05) * |
PATENT ABSTRACTS OF JAPAN vol. 018, no. 228 (P-1730), 25. April 1994 (1994-04-25) -& JP 06 019321 A (CANON INC), 28. Januar 1994 (1994-01-28) * |
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 09, 31. Juli 1998 (1998-07-31) -& JP 10 091002 A (NEC NIIGATA LTD), 10. April 1998 (1998-04-10) * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7546070B2 (en) | 2004-07-26 | 2009-06-09 | Oce Printing Systems Gmbh | Arrangement and method for inking an applicator element of an electrophotographic printer or copier |
Also Published As
Publication number | Publication date |
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EP1156390A3 (de) | 2004-09-08 |
EP1156390B1 (de) | 2007-09-26 |
DE50113051D1 (de) | 2007-11-08 |
DE10122237A1 (de) | 2001-12-20 |
DE10122411B4 (de) | 2010-07-22 |
DE10122411A1 (de) | 2002-01-03 |
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