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1. 发明专利

JP2002341652A IMAGE FORMING DEVICE AND TONER CARTRIDGE USED THEREIN 失效
公开(公告)号：JP2002341652A
公开(公告)日：2002-11-29
申请号：JP2001146743
申请日：2001-05-16
申请人： SHARP KK
发明人： ISHIGURO YASUYUKI , YOSHIDA WATARU , OGOSHI TOSHIHIDE , NISHINO TOSHIO , INOUE ATSUSHI , KIMURA TAKAHIKO
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide an image forming device having simple structure that a toner cartridge is easily exchanged and a developing roller is made to press- contact with a photoreceptor by uniform pressing force, and the toner cartridge used therein. SOLUTION: This image forming device is provided with an elastic member 7 whose one end 7a is fixed in a housing 10a and whose other end 7b faces to the inside of the frame body 6 of a developing device 1. When the toner cartridge 3 is attached to the frame body 6 of the device 1, the other end 7b of the member 7 abuts on the upper surface 3a of the cartridge 3, whereby the member 7 is compressed so that reaction force is generated in the member 7. The device 1 is rotated clockwise centering a supporting part 8 by the reaction force so as to make the developing roller 2 press-contact with the photoreceptor 4.

2. 发明专利

JP2002169368A TONER REPLENISHING DEVICE 失效
公开(公告)号：JP2002169368A
公开(公告)日：2002-06-14
申请号：JP2000366470
申请日：2000-12-01
申请人： SHARP KK
发明人： KIMURA TAKAHIKO , ISHIGURO YASUYUKI , KUBOTA HIROSHI , INOUE ATSUSHI , OGOSHI TOSHIHIDE , NISHINO TOSHIO
IPC分类号： G03G15/08 , F16C13/00
摘要： PROBLEM TO BE SOLVED: To eliminate adhesion of toner or soiling due to the toner by controlling the toner residual in a toner tank from the outside of the toner tank. SOLUTION: The rotary shaft 26 of a stirring body 25 for stirring the toner in the toner tank 20 is extended to the outside of the toner tank 20, and a flywheel 28 is attached to one end of the shaft 26. A driving body 31 is driven and rotated facing to the flywheel 28 in such way that it is engaged with a pin 29 projectingly provided on the flywheel 28 so as to rotate the stirring body 25. When the stirring member 27 of the stirring body 25 passes through an upper dead point, the pin 29 is separated from the driving body 31 and the stirring body 25 is rotated toward a lower dead point by gravity. When the stirring member 27 comes into contact with the toner remaining in the toner tank 20, its rotation is stopped. Since the flywheel 28 is rotated and stopped interlocking with the movement of the stirring body 25, the toner amount in the toner tank 20 is discriminated by the movement of the flywheel 28 detected by a photosensor 42.

3. 发明专利

JP2001209248A DEVELOPING DEVICE 失效
公开(公告)号：JP2001209248A
公开(公告)日：2001-08-03
申请号：JP2000020325
申请日：2000-01-28
申请人： SHARP KK
发明人： INOUE ATSUSHI , YAMANAKA TAKAYUKI , KIDO EIICHI , YOSHIDA HIROAKI , SAKAI MASAHIRO , MASUDA JITSUO
IPC分类号： G03G15/06 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To stably regulate the thickness of a toner layer over a long term while preventing a filming caused by the sticking of toner. SOLUTION: One end of an elastic doctor blade 16 is attached to a freely rotatable polygonal pillar supporting body 15, and an other end thereof is protruded toward the upstream side in a rotating direction. The protruded end of the blade 16 abuts on a developing roller 5 so as to regulate the thickness of the layer of toner 3 carried by the roller 5. When the time decided in accordance with the service term of one blade 16 comes, a new blade 16 abuts on the roller 5 by rotationally moving the supporting body 15.

4. 发明专利

JP2001034040A CONTACT ELECTRIFYING DEVICE, PROCESSING CARTRIDGE AND IMAGE FORMING DEVICE PROVIDED WITH IT 失效
公开(公告)号：JP2001034040A
公开(公告)日：2001-02-09
申请号：JP20680499
申请日：1999-07-21
申请人： SHARP KK
发明人： INOUE ATSUSHI , ISHII HIROSHI
IPC分类号： G03G15/02
摘要： PROBLEM TO BE SOLVED: To provide a contact electrifying device of high reliability where electrifying noise is surely prevented by applying a vibration restraining condition with a wide range of use that is derived by an efficient method. SOLUTION: In this device, an electrifying roll 1 that is constituted from conductive core metal 1a, a conductive elastic layer 1b and a coating layer 1c is rotated while in contact with a photoreceptor drum 3 that is constituted from a conductive substrate 3a and a photoreceptor 3b. Furthermore, bias voltage where AC voltage is superposed on DC voltage is applied between the core metal 1a and the substrate 3a by a power source 2. At this time, since a vibration system with a natural frequency fm that is vibrated due to electrostatic attracting force is constituted by the electrifying roll 1 and the photoreceptor 3, resonance of the vibration system and a comparatively large vibration taking into account viscous dampening resistance can be restrained by calculating the natural frequency fm from each parameter of the vibration system, expressing a frequency of the superposed AC voltage or a value that is twice that frequency as fac and setting it within a range of fac =1.5 fm.

5. 发明专利

JPH11288170A DEVELOPING DEVICE 失效
公开(公告)号：JPH11288170A
公开(公告)日：1999-10-19
申请号：JP34207398
申请日：1998-12-01
申请人： SHARP KK
发明人： TAKATANI TOSHIHIKO , AZUMA NOBUYUKI , YAMADA MASANORI , INOUE ATSUSHI , YASUDA TAKAHARU , YAMANAKA TAKAYUKI , IWAMATSU TADASHI , MATSUYAMA KAZUHIRO , TATSUMI HIROSHI , ADACHI KATSUMI , NISHIO YUKITO
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To surely remove the charge on the toner remaining on a developing roller after developing and to surely recover the toner. SOLUTION: One component toner 7 supplied to the developing roller 3 by a toner supply roller 8 is formed to have a specified thickness which is comparatively small by an electrifying plate 10, and charged by friction to have specified charge amount. Next, the toner adheres along an electrostatic latent image on a photoreceptor drum 2, and the electrostatic latent image is developed at a developing area 5 where the roller 3 is brought into contact with the drum 2. A charge on a toner layer 15 on the roller 3 obtained after developing is discharged by a discharging sheet body 12. The toner 7 obtained after the developing is recovered to a toner hopper 6 by the roller 8. In the rotating shaft direction of the roller 3; the width Wt of the layer 15 and the width Wc of the discharging sheet body 12 on the roller 3 are set to Wc>=Wt, so that the charge on the layer 15 on the developing roller can be surely discharged.

6. 发明专利

JPH11219032A DEVELOPING DEVICE 失效
公开(公告)号：JPH11219032A
公开(公告)日：1999-08-10
申请号：JP2198698
申请日：1998-02-03
申请人： SHARP KK
发明人： AZUMA NOBUYUKI , IWAMATSU TADASHI , TATSUMI HIROSHI , INOUE ATSUSHI , YAMADA MASANORI , YAMANAKA TAKAYUKI
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To weaken the abetting force of a developing roller and a thin-plate elastic body serving, as a discharge member, on each other, to sufficiently obtain an area where the developing roller and the discharge member contact each other, and to carry toner having no development history to a developing area on the developing roller. SOLUTION: In order to make the discharge member 400 abut on the developer carrier 100 so as not to peel residual developer on the developer carrier 100 mechanically, a pressing elastic member 420 is disposed in the area where the developer carrier 100 and the discharge member 400 are in contact with each other. The discharge member 400 is provided with a bias power source 410 for setting a bias in the direction of the exertion of force with which the residual developer on the developer carrier 100 is electrically pulled away from the developer carrier 100. Here, after the electrically-sticking force of the residual developer on the developer carrier 100 is weakened, a developer supply member 200 removes the residual developer on the developer carrier near the area of the contact/separation of the developer carrier 100 and developer supply member or in the area of the contact. Thereafter, near the area of the close contact of the developer carrier 100 and developer supply member 200 or in the area where the contact starts, the developer supply member 200 applies fresh developer in a developing container to the developer carrier 100.

7. 发明专利

JPH11202619A DEVELOPING DEVICE 失效
公开(公告)号：JPH11202619A
公开(公告)日：1999-07-30
申请号：JP894298
申请日：1998-01-20
申请人： SHARP KK
发明人： YAMADA MASANORI , YASUDA TAKAHARU , TAKATANI TOSHIHIKO , INOUE ATSUSHI , AZUMA NOBUYUKI , IWAMATSU TADASHI , MATSUYAMA KAZUHIRO , YAMANAKA TAKAYUKI
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To form a thin and uniform developer layer on a developer carrier. SOLUTION: A rotatable photoreceptor drum 27 and a rotatable developing roller 26 are oppositely arranged by being brought into contact with each other or being near to each other. A plate-like doctor 28 is brought in to press-contact with the roller 26. A toner 23 carried on the roller 26 is electrified to a prescribed polarity by the doctor 28, regulated to be a thin and uniform layer thickness and transported to a developing area. When the toner 23 is stuck to an electrostatic latent image carried by the drum 27, the image is developed. By setting the flatness on the press-contact surface 28a of the doctor 28 to the roller 26 in the height direction of the doctor 28 to be within 10 μm, specially within 5 μm, the thin and uniform toner layer can be formed on the roller 26 and the image without irregularity can be formed. The doctor 28 is made of metal such as stainless steel whose the rigidity is high, brass or an aluminum alloy excellent in property to be shaved or metal having magnetism.

8. 发明专利

JPH096200A IMAGE FORMING DEVICE 失效
公开(公告)号：JPH096200A
公开(公告)日：1997-01-10
申请号：JP15622795
申请日：1995-06-22
申请人： SHARP KK
发明人： MITSUOKA TETSUNORI , KAMIMURA TASUKE , INOUE ATSUSHI
IPC分类号： G03G21/00 , G03G21/10
摘要： PURPOSE: To provide an image forming device provided with cleaning means capable of efficiently removing toner in a noncontact manner and maintaining stable cleanability and capable of constituting a toner recycling mechanism, so as to facilitate the recycling of recovered toner. CONSTITUTION: In the image forming device which executes an image forming process for executing a series of image forming processes by an electrophotographic system, a power supply means 3 applies a cleaning voltage prescribed in the direct potential of the surface potential of an image information forming body 10 and a DC bias voltage as the cleaning voltage applied to a recovering body 2 and an alternating potential, to the gap (d) of a cleaning region. Moreover, when the cleaning means is provided with a first cleaning means removing the toner and a second cleaning means removing depositions except the toner, the power supply means applies the cleaning voltage prescribed in the direct and alternating potentials.

9. 发明专利

JPH02197822A PRODUCTION OF ORGANIC COMPOUND THIN-FILM 失效
公开(公告)号：JPH02197822A
公开(公告)日：1990-08-06
申请号：JP641289
申请日：1989-01-13
申请人： SHARP KK
发明人： INOUE ATSUSHI , ISHINO MARIKO , TANIGUCHI HIROSHI , AKAGI YOSHIRO , NAKAJIMA YOSHIHARU
IPC分类号： G02F1/1337 , C30B29/54 , G02F1/35 , G02F1/355 , G02F1/361
摘要： PURPOSE:To allow the control of the orientation and arrangement of the molecules sticking to the 1st layer on a substrate and to obtain the org. compd. thin-film having a desired crystal bearing or high molecular orientation by selecting the kind, crystal bearing and molecular orientation of the substrate with respect to the org. compd. thin-film to be formed. CONSTITUTION:The substrate formed with the layer of the org. compd. exhibiting the affinity to allow impartation of orientability in a prescribed direction to the org. compd. thin-film to be formed or having the resemblance in crystal grating size on at least the surface is used as the substrate. The crystalline or orientable org. compd. thin-film is formed on this substrate. More specifically, the substrate is produced by growing a copper phthalaocyanine thin-film on an Si plate body by a vacuum vapor deposition method and this substrate is mounted to a substrate holder 2, then a crucible 5 in which 2- methyl-4-nitroaniline (MNA) is housed is heated in a vacuum to sublimate the MNA to form the MNA thin-film by vapor deposition on the above-mentioned substrate 1. The crystal orientation of the resulted MNA thin-film can be controlled by changing the substrate temp. at this time.

10. 发明专利

JPH01290070A ELECTRONIC EQUIPMENT FOR INFORMATION PROCESSING 失效
公开(公告)号：JPH01290070A
公开(公告)日：1989-11-21
申请号：JP12016488
申请日：1988-05-17
申请人： SHARP KK
发明人： NAKAO HIROSHI , SHIBATA YUKIHIRO , INOUE ATSUSHI , NISHIDA HIROSHI , KAWAMURA TAKUJI , NAKAMURA KEIJI , TSUBOUCHI KOICHI , SHIRAKI TATSUYA , IJUIN MASATO , TSUNODA KIYOSHI
IPC分类号： G06F15/02 , G04G11/00 , G06Q10/00 , G06Q10/06 , G06Q10/10 , G06Q50/00
摘要： PURPOSE:To erase the undesired schedule data all at once by preparing an area designating means which designates the area of the schedule data shown by an output from a cursor start/end point memory means and an erasing means which erases the schedule data stored in the designated area. CONSTITUTION:A cursor start point memory means 5 stores the cursor start point position when an instruction is received from a key input means 1. A cursor end point memory means 6 stores the cursor end point position with an instruction received from the means 1. An area designating means 7 designates the area of the schedule data shown on a display means 2 based on the outputs received from both means 5 and 6. Then an erasing means 8 erases the schedule data stored in an area designated by the instruction given from the means 1. In such a constitution, the designated areas are erased all at once by shifting the cursor via the means 1 and designating the head and end areas of each schedule item to be erased for transmission of an erasing instruction.

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