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公开(公告)号：JPH10186760A
公开(公告)日：1998-07-14
申请号：JP34215096
申请日：1996-12-20
Applicant: CANON KK
Inventor： OTAKA HISASHI , YAMAMOTO YASUYOSHI
Abstract: PROBLEM TO BE SOLVED: To provide an image forming device in which the position of a sheet can be easily confirmed in the removing work of a jammed sheet. SOLUTION: A carrying passage part 100 is constituted so as to be drawable from a casing 102. The carrying passage part 100 has a display window 8 for performing a display for instructing the presence of a sheet. When a sheet is jammed in the carrying passage part 100, a display mark 1a is indicated in the display window 8. The display to the display window 8 is continued even after the carrying passage part 100 is drawn from the casing 102 and also in the state where the power supply to the carrying passage part 100 is interrupted. This can be executed, for example, by mechanically constituting the display mechanism or providing a battery backup.
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公开(公告)号：JP2000168994A
公开(公告)日：2000-06-20
申请号：JP34325698
申请日：1998-12-02
Applicant: CANON KK
Inventor： OTAKA HISASHI
Abstract: PROBLEM TO BE SOLVED: To prevent slackness of a sheet material just before introduction from a lower guide member to a transferring position by introducing the sheet material, carried out from a register roller pair, forcibly pressed against the lower guide member. SOLUTION: A nip line L1 of a register roller pair 1 is set by the register roller pair 1 in the direction further from a photosensitive drum 109 than a line L2 connecting a nip and a point of tangency of the photosensitive drum 109. The angle between the lines L1 and L2 is larger than 0 so as to take effect, and smaller than 10 so as not to reduce conveying force. A sheet material P conveyed from the register roller pair 1 is guided by a guide member 2 composed of upper and lower guide members 2a and 2b. The sheet material P travels along the protrusive lower guide member 2a, having a plurality of bent parts, of the guide member 2. Thus, when the sheet material P enters the photosensitive drum 109 and is sucked, no slackness occurs between the lower guided member 2a and the sheet material P at a section C.
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公开(公告)号：JP2000137373A
公开(公告)日：2000-05-16
申请号：JP32455398
申请日：1998-10-29
Applicant: CANON KK
Inventor： OTAKA HISASHI , YAMAMOTO YASUYOSHI
IPC: G03G15/08
Abstract: PROBLEM TO BE SOLVED: To reduce the working time and to prevent a toner leakage by smoothly executing toner replenishment to a device main body with a simple constitution. SOLUTION: At the toner replenishing container having an aperture part 1a to replenish toner and a shutter member 3 opening and closing the aperture part 1a, a pipe member 4 having aperture holes 4a and 4b at both ends is provided at the inside of the toner replenishing container. Air flows to an upper space by passing through the pipe member 4 when the shutter part 3 is opened, so that the discharging property of the toner is enhanced.
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公开(公告)号：JP2002006704A
公开(公告)日：2002-01-11
申请号：JP2000192570
申请日：2000-06-27
Applicant: CANON KK
Inventor： OTAKA HISASHI
IPC: G03G21/10
Abstract: PROBLEM TO BE SOLVED: To provide a waste toner carrying device which detects abnormality of a waste toner pipe and the filled state of a waste toner recovery vessel with a high reliability and a simple constitution. SOLUTION: A carrying screw (rotating carrying member) 2 for toner carrying is provided in a waste toner pipe 1, and this carrying screw 2 is rotated by driving means (a driving gear 5, a driving input gear 6, etc.), to carry waste toner remaining on a photoreceptor drum (image carrier) to a waste toner recovery vessel 9. In this waste toner carrying device, a one-way bearing (rotation direction control member) 3 to control the rotation direction of the carrying screw 2 to a single direction is provided.
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Patent Agency Ranking
公开(公告)号：JP2000143103A
公开(公告)日：2000-05-23
申请号：JP32561498
申请日：1998-11-16
Applicant: CANON KK
Inventor： OTAKA HISASHI , YAMAMOTO YASUYOSHI
Abstract: PROBLEM TO BE SOLVED: To provide an image forming device for shortening a time needed for forming images on both the surfaces of a sheet. SOLUTION: Plural inversion parts 5 and 6 are branchedly provided on a recarrying path 112 for carrying sheets P1 and P2 formed of an image on one side surface again to an image forming part, and also the sheets P1 and P2 are carried in order at given intervals to the path 112 to introduce the sheets P1 and P2 to inversion parts 5 and 6, respectively. After that, the sheets P1 and P2 introduced into the inversion parts 5 and 6 are inverted and also carried again to the forming part in order of the carried sheets with sheet intervals smaller than the given intervals.
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公开(公告)号：JPH11257442A
公开(公告)日：1999-09-21
申请号：JP6591098
申请日：1998-03-16
Applicant: CANON KK
Inventor： OTAKA HISASHI
Abstract: PROBLEM TO BE SOLVED: To transmit a rotation force with high efficiency by effecting coincidence of the axes of a drive rotation force transmission body and a driven rotation force transmission body with each other. SOLUTION: A rotation force transmission mechanism 10 comprises a drive rotation force transmission body 23 to be rotatably loosely fitted in a first frame 13 to transmit the rotation force of a drive source; a driven rotation force transmission body 35 to be rotatably mounted on a second frame 14 movable to the first frame 14 and opposite to the drive rotation force transmission body; a rotation force transmission means 38 to have a drive member 30 arranged at the drive rotation force transmission body and a driven member 35 having a driven rotation force transmission body and engage and disengage the drive member and the driven member with and from each other, and transmit the rotation force of a drive rotation force transmission body to the driven rotation force transmission body during engagement of the members with each other; and a means 40 to effect coincidence of the axes of the drive and driven rotation transmission bodies with each other. The drive rotation force transmission body is moved by an axis matching means and have an axis coinciding with that of the driven rotation force transmission body.
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公开(公告)号：JP2006323154A
公开(公告)日：2006-11-30
申请号：JP2005146528
申请日：2005-05-19
Applicant: CANON KK
Inventor： TAKEMATSU KOJI , SHIROGATA JIRO , OTAKA HISASHI , KOSHIDA KOHEI , MANABE KENICHI , MIYAZAWA HIDEAKI , OZASA HIDEAKI , YAMANAKA YUJI
Abstract: PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of performing printing with high image quality by preventing abnormality such as the shift of an image transferred to sheet material by adjusting so that the sheet material being conveyed may not cause deviation in feed amount at both ends in a sheet width direction. SOLUTION: A guide member comprising secondary transfer feeding guides 1 and 2 guiding the sheet material S being recording paper is provided in a section between resist rollers 7 and 8 arranged on the upstream side of the conveying path of the sheet material S and secondary transfer rollers 4 and 5 arranged on the downstream side thereof. One secondary transfer feeding guide 1 has a sheet straightening plate 20 (movable part) adjusting the front and rear of the sheet by moving an abutting part so that the leading edge of the sheet material S may be parallel with the sheet width direction orthogonal to a conveying direction, and a part of the plate becomes a reforming part 21 and abuts on the sheet material S being conveyed. The sheet material S is adjusted so that a difference between both right and left ends, that is, a difference between the front and the rear may not be caused on the leading edge, and an image carried on the image carrier of an image forming part is transferred to an intermediate transfer belt 3, and image shift is restrained when the transferred image is collectively transferred to the sheet material S. COPYRIGHT: (C)2007,JPO&INPIT
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公开(公告)号：JP2000168967A
公开(公告)日：2000-06-20
申请号：JP34758598
申请日：1998-12-07
Applicant: CANON KK
Inventor： OTAKA HISASHI , IWATA HYOE
IPC: B65H1/26
Abstract: PROBLEM TO BE SOLVED: To not require positioning of a front panel with a body provided therewith every time a lateral registration is adjusted by providing a reference body positioned into a predetermined position and a main body equipped with a positioning body positioning the main body in regard to the reference body. SOLUTION: A cassette tray 101 is positioned in regard to a copying machine body 302 by loosening screws 107 and 109, attaching a sheet cassette 100 to the copying machine body 302, and engaging a cassette positioning pin 104 to a cassette positioning hook 105. A screwdriver is inserted from a hole part 102b of a cassette front cover 102 and an adjusting screw 110 is turned clockwise. The cassette positioning pin 104 threadedly engaged to the adjusting screw 110 is engaged to the cassette positioning hook 105 and positioned in a predetermined position in regard to the copying machine body 302. Therefore, a cassette front cover adjusting part 114 and the cassette front cover 102 does not move, and a front face 102a of the cassette front cover 102 and a front face of the copying machine body 302 are maintained flush with each other.
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公开(公告)号：JPH09280288A
公开(公告)日：1997-10-28
申请号：JP9078196
申请日：1996-04-12
Applicant: CANON KK
Inventor： MIZUNUMA NOBORU , NOJIMA KOJI , MAMIYA TOSHIHARU , SATA JUNICHI , OTAKA HISASHI , CHIKU KAZUYOSHI
Abstract: PROBLEM TO BE SOLVED: To provide an external force absorbing means capable of preventing overturning or large movement of a business machine and detachment of a unit even if the external force such as the excessive impact or vibration when an earthquake occurs, and capable of securing the functions of an inner parts and the unit by mitigating the acceleration to be applied to the inside of the device, and an installation structure of the business machine using the external force absorbing means. SOLUTION: One end of a wire (a loosening/tensioning means) 6 of an external force absorbing means is fixed to a fixing member (a fixing means) 4 through a locking member (a locking means) 7, the wire 6 is passed through a fixed bracket 8 of a business machine body 1, abutted on a caster 3, and extended so as to surround the periphery of a lower part of the business machine body 1 from the outer side, the outer end part of the wire 6 is locked to a floor surface or a wall surface through the locking means to constitute an installation structure of a business machine. When an earthquake, or the excessive impact or vibration is generated, the wire 6 is expanded under the excessive external force, and the excessive external force can be effectively absorbed by the elongation of the wire 6.
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