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1. 发明公开

CN1199183A 防止形成背景图象的方法和器件失效
公开(公告)号：CN1199183A
公开(公告)日：1998-11-18
申请号：CN98108409.5
申请日：1998-05-07
申请人：三星电子株式会社
发明人：金顺男
IPC分类号： G03G13/045
CPC分类号： G03G15/75 , G03G15/065 , G03G2215/021
摘要：一种电子照相成象装置防止形成背景图象。这器件包括带接地板的光敏鼓和用于在装置长时间没使用之后接上电源,或在装置接通电源而几个小时不形成图象的情况下,向接地板提供负电压的电源。所加的负电压的电位低于能使附于显影辊上的色粉转移到所述光敏鼓上的临界电位。此外,只有当光敏鼓上的充电位置旋转到达显影位置时,才把这负电压加到接地板上。

2. 发明公开

CN1139221A 使用中间转印件的图象形成装置失效
公开(公告)号：CN1139221A
公开(公告)日：1997-01-01
申请号：CN96105080.2
申请日：1996-04-22
申请人：佳能株式会社
发明人：广岛康一 , 西村克彦 , 月田辰一 , 小酒达 , 依田宁雄
IPC分类号： G03G5/026 , G03G13/045 , G03G13/16
CPC分类号： G03G15/161 , G03G15/1605 , G03G2215/1652
摘要：一种图象形成装置，使用中间转印件把色调剂图象转印到转印材料上，它包括：图象承载件；色调剂图象形成装置；中间转印件，可沿环路与承载件相接触地运动；偏压施加装置，施加偏压，在中间件的第一转印位置使色调剂图象从承载件转印到中间件上；图象转印装置，在中间件的第二位置把色调剂图象转印到转印材料上；剩余色调剂充电装置，在图象转印后对中间件上剩下的色调剂充电，与正常极性相反，当剩余色调剂通过第一位置时与该位置上的下一图象转印同时被转印回承载件上。

3. 发明公开

CN1175711A 减少采用静电复印显影系统的图象形成设备反转印的装置和方法失效
公开(公告)号：CN1175711A
公开(公告)日：1998-03-11
申请号：CN97117579.9
申请日：1997-08-30
申请人：三星电子株式会社
发明人：安秉善
IPC分类号： G03G5/04 , G03G13/045 , G03G13/23
CPC分类号： G03G15/1695 , G03G2215/1666
摘要：用于减少采用静电复印显影系统的图象形成设备反转印的装置和方法,所述系统当形成下一个图象时会由贴附于感光鼓和黏附于转印辊的未转印的显影材料沾污记录纸张的背面。在上述方法中,贴附有显影材料的感光鼓紧密接触记录纸张的正面,用于将显影材料转印到记录纸张的转印辊紧密接触记录纸张的背面,以便记录纸张的背面能够被充电为显影材料的极性而其正面能够被充电为另一种极性,从而将显影材料转印到记录纸张。

4. 发明授权

CN1134707C 防止形成背景图象的方法和器件失效
公开(公告)号：CN1134707C
公开(公告)日：2004-01-14
申请号：CN98108409.5
申请日：1998-05-07
申请人：三星电子株式会社
发明人：金顺男
IPC分类号： G03G13/045
CPC分类号： G03G15/75 , G03G15/065 , G03G2215/021
摘要：一种电子照相成象装置防止形成背景图象。这器件包括带接地板的光敏鼓和用于在装置长时间没使用之后接上电源，或在装置接通电源而几个小时不形成图象的情况下，向接地板提供负电压的电源。所加的负电压的电位低于能使附于显影辊上的色粉转移到所述光敏鼓上的临界电位。此外，只有当光敏鼓上的充电位置旋转到达显影位置时，才把这负电压加到接地板上。

5. 发明公开

CN1208868A 细粉上电荷量的控制方法和装置以及细粉的喷射方法和装置失效
公开(公告)号：CN1208868A
公开(公告)日：1999-02-24
申请号：CN98119805.8
申请日：1998-08-19
申请人：日清制粉株式会社 , 日清工程株式会社
发明人：村田博 , 大村洋海 , 原文雄
IPC分类号： G03G13/045
CPC分类号： B05B5/047 , B05D1/06
摘要：一种控制细粉上电荷量的方法和控制电荷量的装置,当把细粉以大致的离散颗粒状态提供给输送管并由水含量极小的露点不大于0℃的压缩气流输送离散状的颗粒时,通过控制压缩气体的露点控制细粉上细粉与细粉输送管内壁碰撞时所必然产生的电荷量。利用这种布局,即使在细粉如液晶隔离物等的类型、管路系统如粉输送管和喷嘴等、用作载运介质的气体类型和状态以及如气压等环境条件有变化时,也能够控制细粉上必然产生的电荷量。另外,细粉喷射方法和装置利用二维摆动喷嘴把摩擦电荷量按上述控制的细粉以离散的颗粒状态均匀地喷射到接地的基板表面。利用这种布局,通过控制细粉的电荷量,可以以预定的目标喷射密度稳定地、精确定点且再现性极佳地喷射细粉。

6. 发明专利

JPS62291673A FORMATION OF OUTLINE IMAGE 失效
公开(公告)号：JPS62291673A
公开(公告)日：1987-12-18
申请号：JP13541086
申请日：1986-06-10
申请人： MINOLTA CAMERA KK
发明人： OKA KENJIYU , TOYOKICHI NAOKI , YOKOYAMA TOMOAKI
IPC分类号： G03G15/05 , G03G13/045 , G03G13/22 , G03G13/26
摘要： PURPOSE:To develop the positive image of an outline image by forming a developing process for normally developing an electrostatic latent image formed through a 2nd electrostatic charging process for executing recharging while impressing voltage having the same polarity as that of a 1st charging process by charged toner having the reverse polarity against the 1st charging process. CONSTITUTION:After exposing a negative image to the surface 1 of an electrostatic sensitive body to which the charge of fixed potential is applied by an electrostatic charger 2, a grid 42 is recharged while impressing voltage sufficiently lower than the surface potential of the non-image part of an electrostatic latent image formed by an exposure process 3 and having the same polarity as the charger 2 by a scorotron charger 4 to which DC voltage or alternate voltage having the same polarity as the charger 2 is impressed. The surface potential of the electrostatic latent image part other than the outline part of the image part is dropped down to almost the grid voltage and then the electrostatic latent image formed through the scorotron charger 4 is normally developed by the charged toner having the reverse polarity against the charger 2. Consequently, the charged toner is stuck to the outline part of the electrostatic latent image part with high potential and the outline image is turned to a positive image.

7. 发明专利

JPS6075844A COLOR ELECTROPHOTOGRAPHIC METHOD 失效
公开(公告)号：JPS6075844A
公开(公告)日：1985-04-30
申请号：JP18312983
申请日：1983-10-03
申请人： FUJI XEROX CO LTD
发明人： NAKAYA FUMIO
IPC分类号： G03G13/01 , G03G13/045 , G03G15/00 , G03G15/01 , G03G15/04 , G03G15/043
摘要： PURPOSE:To obtain an image having various densities which are continuously gradational at the same hue by repeating plural times of electrification and exposing and electrifying again uniformly a photosensitive body prior to development. CONSTITUTION:A photosensitive body 1 which is uniformly electrified by the 1st corona electrifier 2 is exposed imagewise by the 1st exposing light source 3 having increased exposure, by which an electrostatic latent image is formed and further the photosensitive surface thereof is uniformly electrified by the 2nd constant current type corona electrifier 4. The uniformly electrified photosensitive surface is exposed with the same image by the 2nd exposing light source 5 in succession to the above-mentioned electrification and is further uniformly electrified by the 3rd constant current type electrifier 6. The image having excellent various densities which are continuously gradational is thus obtd. at the same hue.

8. 发明专利

JPS6053967A MULTIPLE SHEET COPYING METHOD 失效
公开(公告)号：JPS6053967A
公开(公告)日：1985-03-28
申请号：JP16233083
申请日：1983-09-02
申请人： MINOLTA CAMERA KK
发明人： KAWABATA HIDETOSHI
IPC分类号： G03G15/00 , G03G13/045 , G03G13/22
摘要： PURPOSE:To enable use of an optional photosensitive body and continuous copying of good images by repeating the process for forming electrostatic latent images without image exposing at every copying in accordance with the initially formed electrostatic latent image. CONSTITUTION:A photosensitive body 1 formed by laminating a photoconductive layer 1b on a conductive base plate 1a is uniformly electrified in the 1st stage and the body 1 is subjected to image exposing 3 to form an electrostatic latent image thereon in the 2nd stage. When the electrostatic latent image is developed, the toner of a negative polarity is stuck to the image part corresponding to the positive pole charge constituting said part in the 3rd stage. The photosensitive body is electrified in such a way that the toner polarity of the developed image is inverted in the succeeding 4th stage and thereafter light is irradiated from a light irradiating lamp 6 to the body 1 in the 5th stage to form the same electrostatic latent image as the electrostatic latent image obtd. in the 2nd stage. Said image is transferred onto transfer paper 8 in the 6th stage. The copying of the 2nd and succeeding sheets is continuously accomplished by repeating the process from the 3rd to the 6th stage.

9. 发明专利

JPS5997164A ELECTROPHOTOGRAPHIC METHOD 失效
公开(公告)号：JPS5997164A
公开(公告)日：1984-06-04
申请号：JP20831482
申请日：1982-11-27
申请人： OLYMPUS OPTICAL CO
发明人： OKADA TAKAO , TODA AKITOSHI , MIMURA YOSHIYUKI
IPC分类号： G03G15/05 , G03G13/045
摘要： PURPOSE:To obtain a stable electrostatic latent image having high contrast and less fog by subjecting an electrophotographic sensitive body to primary electrostatic corona charging simultaneously with exposing of a light image then to secondary corona charging by using an AC voltage wherein the conduction angle is phase-controlled so as to stress a reversed polarity with respect to the primary charging and subjecting said body to exposing over the entire surface. CONSTITUTION:A photosensitive body produced by forming an Se charge transfer layer and an Se-Te charge generation layer on an Al conductive layer then forming a polyethylene terephthalate film insulation layer on an Al conductive layer is used. Said body is subjected to exposing of a light image simultaneously with DC corona charging of +7kV as primary corona charging. The body is then subjected to corona discharge, as secondary charging, by a corona charger supplied with a waveform of A+=A-=6kV in max. values A+, A- in amplitude, D+/D-=18/10 in conductive angles D+, D- of the half wave on a positive side and the half wave on a negative side and 50Hz frequency, in the dark; in succession, the sensitive body is subjected to exposing over the entire surface. The electrophotographic sensitive body is subjected to the primary corona charging in such a way is subjected to secondary corona charging by using the AC voltage wherein conduction angle of either one of the half wave on the positive side or the half wave on the negative side so as to stress the reversed polarity with respect to the primary charging simultaneously with the exposing of the light image. Said body is then subjected to exposing over the entire surface whereby a stable electrostatic latent image having high contrast and less fog is obtd.

10. 发明专利

JP2020160292A 画像形成装置审中-公开
公开(公告)号：JP2020160292A
公开(公告)日：2020-10-01
申请号：JP2019060014
申请日：2019-03-27
申请人：株式会社沖データ
发明人：曽我仁 , 後藤拓哉
IPC分类号： G03G15/02 , G03G13/045 , G03G15/00
摘要：【課題】像担持体に帯電不良が発生するのを防止し、媒体に強転写汚れが発生するのを防止することができ、画像品位を向上させることができるようにする。【解決手段】像担持体と、帯電装置と、露光処理部Pr5と、現像剤担持体と、転写部材と、媒体情報に基づいて媒体が高抵抗媒体であるか低抵抗媒体であるかを判別する媒体判別部Pr2と、媒体が高抵抗媒体である場合に、高抵抗媒体に応じた電圧を帯電装置に印加する電圧制御部Pr6とを有する。前記露光処理部Pr5は、幅が狭い媒体に対して印刷が行われた後、幅が広い媒体に対して印刷が行われる場合に、前記露光装置によって像担持体の画像領域以外の所定の領域を露光して像担持体の表面電位を所定量低くする。像担持体に帯電不良が発生するのを防止することができる。【選択図】図1

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