公开(公告)号：JP2003149841A

公开(公告)日：2003-05-21

申请号：JP2002020492

申请日：2002-01-29

Applicant: CANON KK

Inventor： HASHIZUME JUNICHIRO ,  OKAMURA TATSUJI ,  EBARA TOSHIYUKI ,  HOSOI KAZUTO ,  KAWADA MASAYA ,  KARAKI TETSUYA ,  KAWAMURA KUNIMASA ,  OWAKI HIRONORI

IPC: G03G5/08 ,  G03G5/082 ,  G03G5/147 ,  H01L21/311

Abstract: PROBLEM TO BE SOLVED: To provide a photoreceptor for electrophotography equipped with a surface protective layer in addition to a photoconductor layer, restraining the welt adhesion of toner and the formation of an image defect, and exhibiting higher relaiblity over a long term, and its efficient manufacturing method and an electrophotographic device using it. SOLUTION: After depositing a layer consisting of at least a non-single-crystal material as the photoconductor layer 102 on cylindrical base substance 101, processing to temporarily expose the surface of the deposited film to air pressure is performed. Then a layer consisting of at least a non-single-crystal material is deposited as the surface protective layer 103 on the surface of which such processing has been performed. Thus, the photoreceptor for electrophotography having a laminated structure, its manufacturing method and the electrophotographic apparatus using the photoreceptor as a light receiving member are provided.

公开(公告)号：JP2002317268A

公开(公告)日：2002-10-31

申请号：JP2001118526

申请日：2001-04-17

Applicant: CANON KK

Inventor： OTSUKA TAKASHI ,  UEDA SHIGENORI ,  KAWAMURA KUNIMASA

IPC: C23C16/44 ,  H01L21/205

Abstract: PROBLEM TO BE SOLVED: To provide a low cost deposition film forming method having high safety and excellent productivity by removing a by-product stuck on an insulating member and inspecting the damage of the insulating member efficiently. SOLUTION: The deposition film forming method for forming the deposition film on a base body by a method of decomposing a gaseous starting material with discharge power by arranging the base body in a reaction vessel capable of being evacuated and introducing the gaseous starting material and the discharge power into the reaction vessel, has a process for detaching the insulating member constituting a part of the reaction vessel after finishing the deposition film forming process and removing the by-product stuck to the insulating member and a non-destructive inspection process for inspecting the presence/absence of the damage of the insulating member after the by-product removing process.

公开(公告)号：JP2002049171A

公开(公告)日：2002-02-15

申请号：JP2001147978

申请日：2001-05-17

Applicant: CANON KK

Inventor： OWAKI HIRONORI ,  KAWADA MASAYA ,  EBARA TOSHIYUKI ,  KARAKI TETSUYA ,  KAWAMURA KUNIMASA

IPC: G03G21/00 ,  G03G5/08 ,  G03G15/04

Abstract: PROBLEM TO BE SOLVED: To provide an Si photoreceptor and a device for image formation which prevent deposition of toner during cleaning and which realize good image formation. SOLUTION: The photoreceptor has a photoconductive layer 102 containing a-Si formed on a conductive substrate 101 having

公开(公告)号：JP2001343774A

公开(公告)日：2001-12-14

申请号：JP2000162686

申请日：2000-05-31

Applicant: CANON KK

Inventor： KARAKI TETSUYA ,  EBARA TOSHIYUKI ,  KAWADA MASAYA ,  OWAKI HIRONORI ,  KAWAMURA KUNIMASA

IPC: G03G5/08

Abstract: PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor essentially comprising amorphous silicon, in which photodegraded potential depends on the wavelength exposed previously. SOLUTION: A part of an electrophotographic light-accepting member essentially comprising amorphous silicon is subjected to photodegradation by light, including at least 600 nm and higher and 700 nm, and lower wavelength range, and the dark potential is measured in the processes of provisory exposure, electrification and potential measurement for obtaining a potential V1 in the photodegraded part, the potential V2 in a part which not photodegraded, and ΔV3=V1-V2 defined as the degraded potential. In the light-accepting member, the degraded potential ΔV3 depends on the wavelength of previous exposure and ΔV3 changes from positive to negative, with increase in the previous exposure wavelength.

公开(公告)号：JP2001343772A

公开(公告)日：2001-12-14

申请号：JP2000162688

申请日：2000-05-31

Applicant: CANON KK

Inventor： KAWAMURA KUNIMASA ,  EBARA TOSHIYUKI ,  KAWADA MASAYA ,  KARAKI TETSUYA ,  OWAKI HIRONORI

IPC: G03G5/08

Abstract: PROBLEM TO BE SOLVED: To provide an a-Si photoreceptor and an image forming device, in which deposition of a toner during cleaning is prevented and satisfactory image formation is performed, and particularly by using the histogram of the microscopic roughness of the a-Si film as new parameters. SOLUTION: An a-Si film is formed on a conductive substrate, having smaller than 9 nm for surface roughness Ra, preferably smaller than 6 nm in area of 10 μm×10 μm, so that the film is controlled to have 70 to 400 nm full width at half maximum(F.W.H.M), in the frequency distribution of the roughness height based on the deepest point of the roughness on the surface in an area of 10 μm×10 μm, and more preferably to 90 to 360 nm. As a result, the deposition of a toner which conventionally prevented this by roughening the substrate can be prevented easily and stably.

公开(公告)号：JP2001343771A

公开(公告)日：2001-12-14

申请号：JP2000162687

申请日：2000-05-31

Applicant: CANON KK

Inventor： EBARA TOSHIYUKI ,  KAWADA MASAYA ,  KARAKI TETSUYA ,  OWAKI HIRONORI ,  KAWAMURA KUNIMASA

IPC: G03G5/08 ,  G03G5/10

Abstract: PROBLEM TO BE SOLVED: To carry out satisfactory image formation by using an electrophotographic photoreceptor, containing amorphous silicon in a photoconductive layer 102 for an electrophotographic device. SOLUTION: A macroscopic rugged pattern having about several μm in size and a microscopic rugged pattern, having about several nm to about several tens of nm in size are formed on the surface of the photoreceptor. In the electrophotographic photoreceptor, the microscopic rugged pattern is rather controlled to a proper form rather than the macroscopic rugged pattern, and more particularly, the microscopic rugged pattern is formed in such a manner that the full width at half maximum of the frequency distribution of the height, based on the deepest point of the microscopic rugged pattern ranges from 5 to 100 nm in a 10 μm×10 μm surface area, so that proper image formation can be conducted.

公开(公告)号：JP2003201565A

公开(公告)日：2003-07-18

申请号：JP2002001312

申请日：2002-01-08

Applicant: CANON KK

Inventor： ABE YUKIHIRO ,  NIINO HIROAKI ,  KAWAMURA KUNIMASA

IPC: G03G5/08 ,  C23C16/44 ,  H01L21/205

Abstract: PROBLEM TO BE SOLVED: To provide a film deposition apparatus in which the stability of the production system is improved and the rate of operation of the apparatus is enhanced by improving the durability of a vacuum seal of a rotary shaft to rotatably support a holder to hold a substrate. SOLUTION: In an evacuating reaction vessel 101, a holder 106 with a substrate 105 installed therein is connected to a rotating device 114 outside the reaction vessel 101, and rotatably supported by a rotary shaft 107 extended penetrating a bottom part of the reaction vessel 101. A space 108 of the width capable of preventing any passage of plasma is formed around the rotary shaft 107 between a bottom side of the holder 106 and the reaction vessel 101. A second gas feed port 110 to feed vent gas fed to return the pressure in the reaction vessel 101 into the atmospheric pressure is communicated at the space 108, or at the position on the rotary shaft 107 side. COPYRIGHT: (C)2003,JPO

公开(公告)号：JP2003193242A

公开(公告)日：2003-07-09

申请号：JP2001396997

申请日：2001-12-27

Applicant: CANON KK

Inventor： NIINO HIROAKI ,  KAWAMURA KUNIMASA ,  ABE YUKIHIRO

IPC: G03G5/08 ,  C23C16/509 ,  H01L21/205

Abstract: PROBLEM TO BE SOLVED: To deposit a film of uniform thickness and quality at a high speed by uniformly performing plasma treatment of the base material of a large area at a high processing speed by using plasma generated by high frequency power. SOLUTION: A plasma treatment apparatus comprises a reaction vessel with at least a part thereof comprising a conductive member 1110, a plurality of high frequency electrodes 1118 installed outside the reaction vessel, a high frequency branching member 1119 which branches and applies the high frequency power to each of the plurality of high frequency electrodes 1118, and an electromagnetic wave shielding member 1131 to shield the electromagnetic wave of the high frequency. The plasma treatment apparatus satisfies two kinds of inequalities of 0.05≤d2/R≤0.15 and 0.3≤d2/(d1+d2)≤0.7, where d1 is the space between the high. frequency branching member 1119 and an upper shield member 1132, d2 is the space between the high frequency branching member 1119 and the conductive member 1110, and R is the diameter of the high frequency branching member 1119. COPYRIGHT: (C)2003,JPO

公开(公告)号：JP2003156879A

公开(公告)日：2003-05-30

申请号：JP2001355917

申请日：2001-11-21

Applicant: CANON KK

Inventor： FUJIKAWA HIROYUKI ,  FUJIMOTO MASAMI ,  KOBORI NAOKUNI ,  KAWAMURA KUNIMASA

IPC: G03G9/087 ,  G03G5/08

Abstract: PROBLEM TO BE SOLVED: To provide a toner having good transfer efficiency, excellent in dot reproducibility and giving good resolution line expression and to provide an image forming method. SOLUTION: The toner contains as a binder resin component at least one or more vinyl resins selected from the group comprising (a) vinyl resins having a carboxyl group and vinyl resins having an epoxy group, (b) vinyl resins having a carboxyl group and an epoxy group and (c) vinyl resins in which a carboxyl group and an epoxy group have reacted with each other and the toner has 0.1-50 mgKOH/g acid value of a tetrahydrofuran (THF)-soluble component. In the image forming method, the toner and a photoreceptor having at least a photoconductive layer comprising amorphous silicon and a surface protecting layer stacked in order on an electrically conductive substrate are used. The photoreceptor has an average gradient Δa of 0.12-1.0 within the range of 10 μm×10 μm on the electrically conductive substrate.

公开(公告)号：JP2003156873A

公开(公告)日：2003-05-30

申请号：JP2001355913

申请日：2001-11-21

Applicant: CANON KK

Inventor： TAYA MASAAKI ,  FUJIMOTO MASAMI ,  KOBORI NAOKUNI ,  FUJIKAWA HIROYUKI ,  KAWAMURA KUNIMASA

IPC: G03G9/083 ,  G03G5/08 ,  G03G15/00

Abstract: PROBLEM TO BE SOLVED: To provide developer, an image forming method and an image forming device capable of stably forming a half-tone image of high sharpness and good gradation and an image having the inconspicuous edge of the image part at any time over a long period, and also, capable of still more prolonging the life of an a-Si photoreceptor. SOLUTION: The developer is provided with toner particles containing at least binding resin and 10 to 200 mass pts. magnetic iron oxide with reference to 100 pts. mass binding resin, and the magnetic iron oxide contained in the particle of =45 number % and