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1. 发明专利

JP2003248371A DEVELOPING DEVICE, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：JP2003248371A
公开(公告)日：2003-09-05
申请号：JP2002050635
申请日：2002-02-27
申请人： CANON KK
发明人： SHOJI TAKEO , SAKURAI KAZUE , SATO HIROSHI
IPC分类号： G03G21/18 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To accurately and exactly detect developer amount in constitution where a developing roller is disposed so that it can move to contact with/ separate from a photoreceptor drum. SOLUTION: The developing roller 10 feeding developer supplied from a developer storage container 14 to the photoreceptor drum 7, a developing blade 11 regulating a developer layer adhering to the surface of the roller 10, and an electrode 31 arranged to be opposed to the roller 10 are disposed in a moving frame body 12 so that their relative positions may be always the same. The frame body 12 can move in a developing frame body 13 coupled with the container 14 and is arranged to be energized by a spring so as to press the roller 10 capable of moving to contact with/separate from the drum 7. By measuring electrostatic capacity between the roller 10 and the electrode 31 generated in the case of applying developing bias voltage to the roller 10 by a developer amount detection part 42, the developer amount in a space between the roller 10 and the electrode 31 which is always fixed is detected. COPYRIGHT: (C)2003,JPO

2. 发明专利

JP2003223078A IMAGE FORMING DEVICE AND PROCESS CARTRIDGE 审中-公开
公开(公告)号：JP2003223078A
公开(公告)日：2003-08-08
申请号：JP2002021240
申请日：2002-01-30
申请人： CANON KK
发明人： OBA HIROYUKI , SATO HIROSHI , YOSHIDA MASAHIRO , SHIMIZU YASUSHI , KATO JUNICHI
IPC分类号： G03G15/02 , G03G15/08 , G03G21/00
摘要： PROBLEM TO BE SOLVED: To accelerate the separation of toner t and conductive powder m in a transfer residual developer, which remain on an image carrier 1 after a transfer process, to facilitate the formation of a negative toner image in an electrification process and the recovery of toner in a development process, to increase the conductive powder m held on a contact electrifying member 2, thereby maintaining stable electrification performance, in a cleanerless image- forming device of a transfer system and a process cartridge attachable/ detachable to/from the image forming device, which use, as an electrifying means for the image carrier 1, the contact electrifying means 2 using the conductive powder m and which supply the conductive powder m to the contact electrifying means 2 from a developing means 3 via the surface of the image carrier 1 by incorporating the conductive powder m in developer 4-a for a developing means 3. SOLUTION: A conductive elastic body 7 which comes into contact with the image carrier 1 after a toner image was transferred by a transfer means 5 and on the upstream side from the electrifying means 2 in the direction of the movement of the image carrier is included. And a voltage is applied to the conductive elastic body 7. COPYRIGHT: (C)2003,JPO

3. 发明专利

JP2003207999A IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：JP2003207999A
公开(公告)日：2003-07-25
申请号：JP2002008703
申请日：2002-01-17
申请人： CANON KK
发明人： SATO HIROSHI , SHIMIZU YASUSHI , OBA HIROYUKI , YOSHIDA MASAHIRO , KATO JUNICHI
IPC分类号： G03G15/02 , G03G9/08 , G03G9/083 , G03G15/06 , G03G15/08 , G03G21/14
摘要： PROBLEM TO BE SOLVED: To construct a cleaner-less system having stable electrifying property even to equipment whose processing speed is about 200 mm/s without causing the rise of production cost in an image forming apparatus such as an electrophotographic copying machine or an electrophotographic printer in which the electrifying means for an image carrier is a contact injection electrifying means using conductive particles and which adopts the cleaner-less system. SOLUTION: By recovering and discharging the excessively supplied conductive particles 40 to a transfer member 4 while maintaining electrification uniformity by functional separation type sequence such as the discharge of toner from an electrifying member 2, the supply of the particles 40 from a developing means 3 and the recovery of the particles 40 by the transfer member 4, the member 2 can carry the proper amount of particles 40 so as to improve a light shielding white spot caused by the accumulation of the excessive amount of particles 40. COPYRIGHT: (C)2003,JPO

4. 发明专利

JP2003116224A PHOTOVOLTAIC GENERATION SYSTEM, POWER CONVERTER THEREOF, AND CONTROL METHOD THEREFOR 审中-公开
公开(公告)号：JP2003116224A
公开(公告)日：2003-04-18
申请号：JP2001311949
申请日：2001-10-09
申请人： CANON KK
发明人： SATO HIROSHI
IPC分类号： H02J3/46
摘要： PROBLEM TO BE SOLVED: To prevent an output voltage to a load from being affected by the voltage of a system power source. SOLUTION: This power converter 30 has different connection paths between the three of a solar battery array 1, a system power source 4 and the load 6. The power converter 30 is operated to convert DC power outputted by the solar battery array 1 into AC power, outputs it to the load 6, and links extra AC power to the system power source 4 in a manner of a tidal reverse current when the power consumption of the load 6 is lower than power supplied from the solar battery array 1, and converts the DC power outputted by the solar battery array 1 into AC voltage, output it to the load compensating for the insufficient AC power with the system power source 4 when the power consumption of the load 6 exceeds the power supplied from the solar battery array 1. The connection path 32 to the load 6 and the connection path 33 to the system power source 4 in the power converter 30 are not electrically connected directly to each other.

5. 发明专利

JP2002214828A IMAGE FORMING APPARATUS 失效
公开(公告)号：JP2002214828A
公开(公告)日：2002-07-31
申请号：JP2001011223
申请日：2001-01-19
申请人： CANON KK
发明人： SATO HIROSHI , YOSHIDA MASAHIRO , OBA HIROYUKI , SHIMIZU YASUSHI , KATO JUNICHI
IPC分类号： G03G9/08 , G03G9/083 , G03G15/08 , G03G15/09
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus that prevents image defects, which are caused by abrasion of photoreceptor, transfer failures, etc. SOLUTION: In the image forming apparatus provided with an image carrier, an electrifying means, an electrostatic latent image forming means, a developing means having a toner carrier and a toner layer thickness regulating member, and a transfer means, the magnetic toner contains magnetic toner particles having at least a binding resin and a magnetic substance. (1) A circular degree of magnetic toner is equal to or higher than 0.970 and equal to or lower than 0.995, (2) saturation magnetization of the magnetic toner under 79.6 kA/m (1,000 oersteds) is equal to or greater than 10 Am2/kg (emu/g) and equal to or less than 50 Am2/kg, (3) a surface roughness Ra (μm) of the toner carrier is in the range of 0.2 to 3.5, and (4) an abutting pressure (N/m) of the toner layer thickness regulating member with respect to the toner carrier is in the range of 14.7 to 68.6.

6. 发明专利

JP2002162885A CLEANING BLADE, CLEANING DEVICE, PROCESS CARTRIDGE AND IMAGE FORMING DEVICE 审中-公开
公开(公告)号：JP2002162885A
公开(公告)日：2002-06-07
申请号：JP2001273799
申请日：2001-09-10
申请人： CANON KK
发明人： SATO HIROSHI
IPC分类号： G03G21/10 , C10M103/02 , C10M103/06 , C10M107/32 , C10M107/38 , C10M107/44 , C10M107/50 , C10N10/04 , C10N10/12 , C10N20/06 , C10N40/06 , C10N50/08
摘要： PROBLEM TO BE SOLVED: To provide a cleaning blade which carries out good cleaning without the occurrence of a peeling of the cleaning blade even in long-term use, a cleaning device, an image forming device and a process cartridge. SOLUTION: The image forming device having an electrostatic latent image carrying member, an electrostatic charging means for uniformly electrostatically charging the surface of the electrostatic latent image carrying member, a developing means for developing the electrostatic latent image formed on the electrostatic latent image carrying member to a sensible image, a transfer means for transferring the developer image formed on the electrostatic latent image carrying member to a transfer material and the cleaning means for cleaning the surface of the electrostatic latent image carrying member by making the cleaning blade having the elastic blade abut on the surface of the electrostatic latent image carrying member and a cleaning means for cleaning the surface of the electrostatic latent image carrying member in which the cleaning blade has a section to abut on the surface of the electrostatic latent image carrying member and has at least resin films on the surfaces at both ends on the outer side of the developing area in its longitudinal direction, the cleaning device, the image forming device and the process cartridge.

7. 发明专利

JP2002090520A METHOD FOR PRODUCING COLOR FILTER, APPARATUS THEREFOR, COLOR FILTER, METHOD FOR LEVELING SURFACE OF COLORED PART IN COLOR FILTER, METHOD FOR PRODUCING DISPLAY, METHOD FOR PRODUCING DEVICE WITH THE DISPLAY, METHOD FOR PRODUCING PANEL FOR DISPLAY, APPARATUS THEREFOR, PANEL FOR DISPLAY, METHOD FOR FIXING AMOUNT OF INK AND UNIT THEREFOR 失效
公开(公告)号：JP2002090520A
公开(公告)日：2002-03-27
申请号：JP2000233660
申请日：2000-08-01
申请人： CANON KK
发明人： FUJIIKE HIROSHI , SATO HIROSHI , KASHIWAZAKI AKIO , NISHI AKIO , IWATA KENITSU
IPC分类号： B41J2/01 , G02B5/20 , G02F1/1335 , G09F9/30 , H01L51/50 , H05B33/10 , H05B33/12 , H05B33/14 , H05B33/22
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a color filter in which coloring parts are satisfactorily protected, the amount of a protective material used is reduced and the thickness of a liquid crystal layer can be kept uniform. SOLUTION: The method for producing a color filter has: a step for previously preparing information on a third amount of ink obtained by carrying out a step for measuring the mean value of the heights of colored parts formed by filling a first amount of ink into first recesses and the mean value of the heights of colored parts formed by filling a second amount of ink into second recesses, a step for forming data which express the relationship between the mean value of the heights of the colored parts and the amount of ink from the measured two mean values and the two amounts of inks corresponding to the mean values and a step for fixing the third amount of ink to be filled so that the mean value of the heights of the colored parts is adjusted to a prescribed range on the basis of the data; and a step for filling the third amount of ink into recesses 3 to form coloring parts in the recesses. The height in the prescribed range is 20-80% of the height from the bottom of each partition wall to the top.

8. 发明专利

JP2002072684A DEVELOPING DEVICE, IMAGE FORMING DEVICE AND PROCESS CARTRIDGE 失效
公开(公告)号：JP2002072684A
公开(公告)日：2002-03-12
申请号：JP2000255476
申请日：2000-08-25
申请人： CANON KK
发明人： KATO JUNICHI , YOSHIDA MASAHIRO , SATO HIROSHI , OBA HIROYUKI , SHIMIZU YASUSHI
IPC分类号： G03G9/083 , G03G15/08 , G03G15/09
摘要： PROBLEM TO BE SOLVED: To provide a developing device capable of yielding high transfer efficiency, remarkably restraining the shaving of an image carrier and faulty transfer such as void in transfer, avoiding an image defect such as fogging or the like even in the case of long-term use, preventing the lowering of image density at the beginning of the use, and always obtaining stable high-quality and high-density image in an image forming device using one-component magnetic developer, and to provide the image forming device and a process cartridge. SOLUTION: In this developing device 3, the one-component magnetic developer (toner) T which has at least binding resin and magnetic substance and whose average circularity is >=0.970 is used, and space to store the toner T is divided into a developing container part 3e and a developer storing part 3f through a wall 3k, and then the device 3 is equipped with a developer supply blade 3j supplying the toner T to the container part 3e in the storing part 3f. The developing device 3 and the image forming device on which the developing device 3 is mounted are constituted.

9. 发明专利

JP2002072682A DEVELOPING DEVICE, PROCESS CARTRIDGE AND IMAGE FORMING DEVICE 失效
公开(公告)号：JP2002072682A
公开(公告)日：2002-03-12
申请号：JP2000253056
申请日：2000-08-23
申请人： CANON KK
发明人： YOSHIDA MASAHIRO , KATO JUNICHI , SATO HIROSHI , OBA HIROYUKI , SHIMIZU YASUSHI
IPC分类号： G03G15/02 , G03G9/08 , G03G9/083 , G03G9/087 , G03G15/08 , G03G15/09
摘要： PROBLEM TO BE SOLVED: To provide a developing device, a process cartridge and an image forming device excellent in reliability and capable of preventing faulty electrification when developer amount is small. SOLUTION: The developing device 11 is provided with a partition member 13 and has structure that developer T flowing as shown by f3 mostly gets on the flow shown by f1 again and is taken onto a developing sleeve 3a again, and the rate of toner joining with the flow shown by f1 from space 201 becomes small. Namely, the developer T in space 200 is preferentially consumed, and the decrease of the rate of electrification accelerating particles 41 in the developer T in the space 201 is restrained, so that the necessary amount of the particles 41 served for development is secured even when the developer T in a developer container 71 is consumed and decreased, and the particles 41 are stably supplied to the end. Thus, insufficient electrification associated with the decrease of the amount of the developer T in the developing device 11 is prevented.

10. 发明专利

JP2002062733A IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE 失效
公开(公告)号：JP2002062733A
公开(公告)日：2002-02-28
申请号：JP2000246491
申请日：2000-08-15
申请人： CANON KK
发明人： KATO JUNICHI , SHIMIZU YASUSHI , SATO HIROSHI , OBA HIROYUKI , YOSHIDA MASAHIRO
IPC分类号： G03G9/083 , G03G5/147 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus, properly forming an image by continuing the stable supply of conductive fine powder to a photosensitive body over a long term, when applying a direct injection electrifying system to a cleaner-less type image forming device, and to provide a process cartridge equipped with an image forming function. SOLUTION: In a developing device 4, incorporated in the image forming device 100, a toner in a 1st developer storage part 4f is preferentially consumed, and the toner is supplied to the storing part 4f from a 2nd developer storing part 4g in small amounts, when the toner in the storing part 4f becomes low. Since the toner is supplied from the storing part 4g later, even if the conductive fine powder (m) in the storing part 4f is reduced, the powder (m) is prevented from becoming very low. Therefore, the powder (m) is supplied stably to the photosensitive body over a long term, and charging is stabilized.

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