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51. 发明专利

DE69030121T2 未知
公开(公告)号：DE69030121T2
公开(公告)日：1997-07-31
申请号：DE69030121
申请日：1990-11-21
申请人： MITA INDUSTRIAL CO LTD
发明人： KAJITA HIROSHI , KONDOH AKIHIRO , SUGIURA MAKOTO , NISHIOKA NOBUHIRO , FUKANO MASAHIKO , GOTOH EIJI , TANAKA SATOSHI , MATSUO TAKESHI
IPC分类号： B65H16/10 , G03G15/00
摘要： An image forming apparatus has a main body (10) to which is attached a device (12) for cutting paper from a roll and discharging the cut paper through an outlet. The roll paper cutting device is adapted to drive transport rollers (95,103,108) with predetermined timing based on the time when the paper travel is detected while all the transport rollers rotate idly in a standby state for paper feeding. The cutting device forwards the leading end of the paper to feed means (22) disposed in said main body in the paper path to the image forming station for the further transport of the paper onwards to be achieved by the transport means within the main body.

52. 发明专利

DE69401466T2 未知
公开(公告)号：DE69401466T2
公开(公告)日：1997-07-24
申请号：DE69401466
申请日：1994-06-28
申请人： MITA INDUSTRIAL CO LTD
发明人： KAWAHARA AKIHIKO
IPC分类号： G03G5/047 , G03G5/06 , G03G5/087
摘要： A photosensitive material for electrophotography having an electrically conducting substrate and a photosensitive layer containing a charge-generating agent and a charge-transporting agent which comprises (i) a P-type charge-generating pigment and (ii) either an N-type charge-generating pigment or an N-type inorganic semiconductor or photoconductor, wherein at least part of the charge-generating agent is dispersed in the form of aggregates in the photosensitive layer.

53. 发明专利

DE69215933T2 未知
公开(公告)号：DE69215933T2
公开(公告)日：1997-07-10
申请号：DE69215933
申请日：1992-03-11
申请人： MITA INDUSTRIAL CO LTD
发明人： KOBAYASHI MASAHIKO , AKASHI MASAKATSU , HIROBE JUNICHI , SUGAYA TSUTOMU , TANAKA YOSHIHISA , KUSUDA TOSHIAKI , MAKIE IKUO , AIKAWA YUKIHIRO , ISHII SATOSHI , OHATA YOSUKE
IPC分类号： G03G15/00 , G03G21/16
摘要： An image forming apparatus comprising functional components secured by a resin apparatus body which is in the form of mutual separable an upper casing at least monocock structured and a lower casing.

54. 发明专利

DE69124886T2 未知
公开(公告)号：DE69124886T2
公开(公告)日：1997-07-10
申请号：DE69124886
申请日：1991-09-10
申请人： MITA INDUSTRIAL CO LTD
发明人： YOKOYAMA MASAAKI , KAKUI MIKIO
IPC分类号： G01K11/12 , B41M5/26 , G01J1/02 , G01J1/50 , G01K11/16 , G01N31/22 , G03C1/735 , G03C1/795 , G03F7/075 , B41M5/28
摘要： An optical sensor has a photosensitive portion which has a first layer (12) including oxo metallic phthalocyanine pigment and a second layer (10) consisting of organic polysilane and shows a sensing of light with a change of color. The optical sensor can also be used as a thermal sensor.

55. 发明专利

GB2283458B Fixing temperature control device 未知
公开(公告)号：GB2283458B
公开(公告)日：1997-07-09
申请号：GB9419116
申请日：1994-09-22
申请人： MITA INDUSTRIAL CO LTD
发明人： AIKAWA YUKIHIRO , ISHII SATOSHI , SADAMORI HIROYUKI , SUGAYA TSUTOMU , HIROBE JUNICHI
IPC分类号： G03G15/20
摘要： A fixing temperature control device according to the present invention is applied to a copying machine. A control section has a warm-up control mode and a normal control mode. In the warm-up control mode, energization to a heater is started in response to the start of copying, while being stopped at the time point where a temperature detected by a heat roller temperature detecting sensor reaches a first off temperature. In the normal control mode, on-off control of the energization to the heater is carried out utilizing a predetermined control temperature as a target subsequently to the termination of the warm-up control mode. The predetermined control temperature is corrected by adding a prescribed correction amount to a reference control temperature. It is preferable that the required correction amount includes i) an initial correction amount added in the early stages of processing in the normal control mode, ii) a correction amount at the time of passing paper sheets added when paper sheets pass between a heat roller and a pressure roller in a fixing device, and iii) an environmental correction amount added depending on an environmental temperature.

56. 发明专利

DE69217264T2 未知
公开(公告)号：DE69217264T2
公开(公告)日：1997-07-03
申请号：DE69217264
申请日：1992-03-30
申请人： MITA INDUSTRIAL CO LTD
发明人： HANATANI YASUYUKI , IWASAKI HIROAKI
IPC分类号： C07C211/54 , C07C211/56 , C07C217/80 , C07C217/84 , C07D317/58 , C07D333/08 , G03G5/06 , C07C217/92
摘要： The present invention provides a benzidine derivative of the following general formula (1). General Formula (1): wherein R , R , R , R , R and R are the same as or different from one another, and each is a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an arlyl group, an aralkyl group or a heterocyclic group; the alkyl group, the alkoxy group, the aryl group, the aralkyl group and the heterocyclic group may have respective substituting groups; l, m, n, o, p and q are the same as or different from one another, and each is an integer from 0 to 2. A , A and A are the same as or different from one another, and each is a hydrogen atom or the following group: (wherein R and R are the same as or different from each other, and each is a hydrogen atom, an alkyl group, an alkoxy group, an arlyl group, an aralkyl group or a heterocyclic group; the alkyl group, the alkoxy group, the aryl group, the aralkyl group and the heterocyclic group may have respective substituting groups provided that R and R are not both hydrogen atoms; r is 0 or 1 and provided that A , A and A are not hydrogen atoms simultaneously, and that at least one of A and A is a hydrogen atom. The invention also provides a photosensitive material comprising a conductive substrate having a photosensitive layer thereon which layer comprises a compound of the formula 1 above.

57. 发明专利

DE69030557D1 未知
公开(公告)号：DE69030557D1
公开(公告)日：1997-05-28
申请号：DE69030557
申请日：1990-11-30
申请人： MITA INDUSTRIAL CO LTD
发明人： SHIMOYAMA HIROSHI , TOKUNO TOSHIRO
IPC分类号： G03G9/097 , C08F2/04 , C08F2/08 , C08F2/38 , C08F12/00 , C08F212/14 , C08F220/04 , C08L25/00 , C08L25/18 , G03G9/087

58. 发明专利

DE69030389D1 未知
公开(公告)号：DE69030389D1
公开(公告)日：1997-05-07
申请号：DE69030389
申请日：1990-06-27
申请人： MITA INDUSTRIAL CO LTD
发明人： ODA KENJI , TSUTSUI EIJI , EKI MAKOTO , MAESHIMA MASANOBU
IPC分类号： G03G15/08 , G03G21/18 , G03G15/00
摘要： An image-forming machine comprises a main body (2) and a process unit (8) detachably mounted on the main body. A supporting-guiding means (416) is mounted in the main body (2) for moving between an elevated position and a lowered position and the process unit (8) is comprised of a first unit (102) and a second unit (104) separably combined with each other. The first unit (102) includes a first frame member (105) which can be mounted on and detached from the supporting-guiding means (416) when the supporting-guiding means (416) is at the elevated position, and a developing device (18) mounted on the first frame member (105) movably over a predetermined direction. The second unit (104) includes a second frame (107) separably combined with the first frame member (105) of the first unit (102) and a rotating drum (12) mounted rotatably on the second frame member (107), a photosensitive member being disposed on the surface of the rotating drum (12); when the supporting guiding means (416) is moved to the lowered position from the elevated position, a predetermined site of the developing device (18) is elastically depressed to a predetermined site of the second unit (104), whereby the developing device (18) and the rotating drum (12) are positioned in a predetermined relationship.

59. 发明专利

DE3752043D1 未知
公开(公告)号：DE3752043D1
公开(公告)日：1997-05-07
申请号：DE3752043
申请日：1987-11-23
申请人： MITA INDUSTRIAL CO LTD
发明人： SAKATO SHINGO , TONE EIICHI , FUJISAWA SHUJI , TSUDA TAKESHI , OHATA YOUSUKE , HIRAOKA HIROSHI
IPC分类号： G03G15/08
摘要： A cartridge/cover member combination for mounting to an image developing device of an image forming machine comprises, a cartridge for containing toner and having a toner discharge opening (296), the cartridge being selectively detachably mountable on a main body of the developing device to enable the toner discharge opening (296) to align with a toner inlet opening of the main body whereby toner may be supplied therethrough from the cartridge to the main body. The cartridge has a receiving portion (380) for receiving an engaging member of the main body when the cartridge is mounted on the main body to thereby prevent removal of cartridge. A cover member (304) for selectively blocking the toner discharge opening (296) is selectively removably mountable on the cartridge (88) for releasing the engaging member of the main body from the receiving portion of the cartridge to enable the cartridge to be detached from the main body (6).

60. 发明专利

DE69124867D1 未知
公开(公告)号：DE69124867D1
公开(公告)日：1997-04-10
申请号：DE69124867
申请日：1991-07-24
申请人： MITA INDUSTRIAL CO LTD
发明人： ASADA HIDENORI , ARAKAWA TAKESHI , TUJI NOBUYUKI
IPC分类号： G03G9/087
摘要： The present invention provides an electrophotographic toner containing, as a fixing resin, a styrene-acrylic copolymer in which styrene content, molecular-weight distribution and acid value are specified. The electrophotographic toner of the present invention is improved in heat resistance by raising the glass transition temperature of the fixing resin, while assuring excellent low-temperature fixing properties and resistance to off-set.

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