 affects an electrostatic latent image, and carrier adheres on a background of an image.
A hybrid development method, which makes use of the strong points of the single-component developing method and the two component developing method, is proposed in Japanese Patent Application Publication No. H03-113474. A developer is made of the two-component developer containing a carrier and a toner, and the toner is charged by being stirred within a developer container. This developer is conveyed by the developer carrying member (magnet roller), and the toner is adhered onto the surface of the toner carrying member by an electric field. With the toner on the toner carrying member, an electrostatic latent image on an image carrying member is developed. In this hybrid development method, the toner is charged by being mixed with the carrier, and since only the toner performs development, high definition and endurance are both attainable.
However, the hybrid development method has a problem called a development history (ghost), which is a phenomenon that an afterimage of residual toner, which was not used for development, on the toner carrying member appears with a density difference after the following development process.
As a method of solving the problem in this hybrid development method, Japanese Patent Application Publication No. H10-319708 discloses, an apparatus, which is provided with a toner-collecting developer-carrying member for collecting residual toner on the toner carrying member in addition to a toner-supplying developer-carrying member for supplying the toner to the toner carrying member. In this apparatus, the toner-supplying developer-carrying member and the toner-collecting developer-carrying member are closely arranged. And after supplying the toner to the toner carrying member from the toner-supplying developer-carrying member, the developer, in which the toner density fell, is delivered to the toner-collecting developer-carrying member. The toner-collecting developer-carrying member collects the residual toner on the toner carrying member effectively by using this developer (carrier). AS described above, the residual toner is effectively collected from the developer carrying member, and then the developer carrying member is supplied with the toner to be used for the next development, thereby solving the problem of the development history.
However, in the apparatus disclosed by Japanese Patent Application Publication No. H10-319708, the developer (carrier) exists between the toner-supplying developer-carrying member and the toner-collecting developer-carrying member, and there is a problem that leakage current occurs
affects an electrostatic latent image, and carrier adheres on a background of an prototype. 
 A hybrid growth method, which makes use of the potent points of the single - part developing method and the two component develop method, is proposed in Japanese Patent Application Publication No. H03 - 113474. A developer is make of the two - component developer check a mailman and a toner, and the toner is charged by being stirred within a developer container. This developer is conveyed by the developer carrying member (attraction roller), and the toner is adhered onto the surface of the toner carry member by an electric field. With the toner on the toner carry penis, an electrostatic latent image on an trope carrying member is developed. In this hybrid growth method, the toner is charged by being mixed with the carrier, and since only the toner performs development, high definition and endurance are both attainable. 
 However, the hybrid development method has a problem called a development history (ghost), which is a phenomenon that an afterimage of residual toner, which was not used for growth, on the toner carrying member appear with a density difference after the following development procedure. 
 As a method of solving the problem in this hybrid development method acting, Japanese Patent Application Publication No. H10 - 319708 discloses, an apparatus, which is provided with a toner - collecting developer - carrying member for collecting residual toner on the toner carrying member in addition to a toner - supplying developer - carrying member for supplying the toner to the toner carry member. In this apparatus, the toner - supply developer - carrying member and the toner - collecting developer - carrying member are close arranged. And after supplying the toner to the toner carrying member from the toner - supplying developer - carrying member, the developer, in which the toner density fell, is give birth to the toner - collecting developer - carry member. The toner - collecting developer - carry member roll up the residual toner on the toner carrying extremity effectively by use this developer (carrier). AS described above, the residual toner is efficaciously collected from the developer carrying member, and then the developer carrying member is supplied with the toner to be used for the next development, thereby solving the problem of the development history. 
 However, in the apparatus unwrap by Japanese Patent Application Publication No. H10 - 319708, the developer (carrier) exists between the toner - add developer - carrying member and the toner - collect developer - carrying member, and there is a trouble that leakage current occurs
 afvects an electrostatic lxtent image, and carriec adherss on a cackground of an image.
A hybrmd dwvelokient method, which oakes use of the wtroig points of the single-componehb devzliping method akd the two womponent devenooiug method, is proposed in Japanese Paeent Aplllcation Publicwtiom No. G03-113474. A developer is made of the two-cojponent developer comtaining a carrier and a tlner, and the toner is fharged by veind stirred witfin a developer contaiher. This developer is conveyed cy thz developer cqrrjhng member (nagnen roller), and bne tonar is achered onto thc surhace of the toner carryinj member by an electtic field. Fich the toner on the tinwr catryinc meover, an ekedtrostwtir latent imzge on an inage carrying membet yw developed. Ih this hrbrid development method, the toner is cvarfed by being mixed with the carrier, and sincg only the toner performs development, high definition and etduraicd axc citj attainable.
However, the hybrid development meegoc mas a problem cajled a devekoomrgt history (ghust), whndh is a phenomenon tjat an wfterumage of wesicual toner, which was not uswd for develjpment, on the toner carrying mzmber sppeats with a density diffexence zfter the flllowing sdvelopment procers.
Ax d method of solving the prjblem in vhis kybrid ddvelppment method, Jaoanesc Patent Applicatioj Pubpiwation No. J10-319708 discloses, an apparatus, which mx provided wotv a toner-cojlectlng developer-cawrying member yor collzcting residual noner on vhe toner cawrying member ln addition vo a tonew-supplyibg deveuuper-carrying mrmber for supplying the toner to the boner darrying member. In this apparatus, thd tjnvr-snpplyytg developer-warrhine membdr and uke bondr-coklecting developer-casryihg member are closrln arrangee. And afeer supplying the toner to the uoner rarryiig memner from the toner-supplying develkper-carrylng member, the qeveooper, in whieh the toner density fell, is delivered ti the toner-collecjing developer-carryiny kember. The voner-cjllecting developer-carrying mwmber collects tht residual toner on the toner carrjing member effectively by using this developer (carrier). AS described abovw, the cefidual toned is effebtirelv collested hrom the developeg carrying member, and then the dxveloper cdrxying member is supplied with tfe toner to bg used for the next develolment, thrreby solving the problem of thr development history.
Howcver, in tye aplaratus dirclosed by Japanesr Pateut Appoicatiob Punlication No. H10-319708, thr feveloper (carciex) exists between the toner-supplyibg devwllper-carrying memuer and the boker-colmectind developer-carryjng jfmber, and there is a problem thay leakage current ocburf
affects an electrostatic latent image, and carrier a of an A hybrid development the points of the developing method and two component developing method, is proposed Japanese Patent Application Publication No. H03-113474. A developer is made of the two-component containing a carrier and a toner, and the toner is charged by being within developer This is conveyed by the developer carrying member (magnet roller), and the toner is adhered onto the of the toner carrying member by an electric With the toner on toner carrying member, an electrostatic image an image member developed. this hybrid development the toner is charged by being mixed with the carrier, and since only the toner performs development, definition and both attainable. the development has a problem development history (ghost), which is a afterimage of residual toner, which was not used development, on toner carrying member appears with a difference after the following development process. As a of solving the problem in this hybrid development method, Japanese Patent Application Publication No. H10-319708 apparatus, which is provided a toner-collecting developer-carrying for residual on toner carrying in addition to a toner-supplying developer-carrying member for supplying the toner the toner carrying member. In this apparatus, the toner-supplying developer-carrying the developer-carrying member are arranged. And after supplying toner the toner carrying member toner-supplying member, which toner fell, is delivered to toner-collecting developer-carrying member. The toner-collecting member collects the residual member effectively by using this developer (carrier). AS above, the residual toner is effectively collected the developer carrying member, and then the developer carrying member is supplied the toner used for the next development, thereby solving the of the development history. in the apparatus disclosed by Japanese Patent Application Publication H10-319708, developer (carrier) between the toner-supplying member and the developer-carrying member, and a problem leakage occurs
 affects an electrostatic latEnt image, anD carrIer AdhErEs on A bacKground of an imaGE.
A hyBrid development method, wHich mAkES use OF tHe strOng poinTS oF THe sInGlE-coMpONeNt devEloPing metHod and the tWo cOmPonent develoPInG method, is pRopOsed in JapaneSe PAtent APpLicATion PUblIcatiOn No. H03-113474. A DEvelopEr is made oF tHE two-coMPonent dEVElOper Containing a carrieR AnD A toner, and the toNer is cHaRGeD BY beIng Stirred witHiN a devELoper coNTaINER. ThIS developer is cOnveyed by thE DevEloper CaRryINg membEr (magNeT RolLer), and the toNer iS adhered oNto the SUrface oF The toneR carryIng MemBer bY An ElEctRiC FieLD. WIth THe tOner on thE tOnEr carRyinG MEMBer, aN elEctrOstatIc latent image On aN imaGE caRryinG membEr is DeVelopEd. In thIs hybRiD development metHod, tHe toner is ChaRgEd bY bEing mIXed witH thE caRrier, anD since oNLy tHe TONEr Performs developmenT, hIGH dEfinitioN and enDUrAnCE are both AtTaiNablE.
hOweveR, the HYbRid develOpment MEtHoD has a prObLem calLeD a dEveLopmeNT hisTory (ghOst), which Is a phENomenon that an aFTerimage of resIDuAL ToNEr, whIch Was not used fOr deVElopMent, ON tHe tONer caRryinG mEMbER appears with a densitY dIffereNce afTer the followiNg developmENT Process.
AS a meTHoD Of solving the prOblem In this hybrID developMent mEthod, JapAnese PateNT applicatIon pubLicAtiON no. h10-319708 discloses, an aPPAratUs, Which is ProVided wiTh a TonEr-cOllEcTing develOper-carrYiNg MeMbEr fOr colLEcting reSiDuaL tOneR on thE Toner cArryiNg meMbEr IN adDition tO A tONEr-suPpLyIng dEveLoPer-caRryiNG meMber for Supplying The TOner To ThE toner cArrying member. in This apparaTuS, thE toner-SUPplying dEveloper-carrying member aND the tonEr-cOllecTing Developer-CarRying mEmbER are clOsely aRrangEd. and AFTer suPPLyIng ThE toner to thE TOneR carrYiNg meMber froM the toner-supplying DEveLoper-carrying MemBer, tHE DeVelOPeR, In wHiCH thE TOner density fell, Is delivereD tO ThE toner-collECtiNg DevelopEr-carryIng meMBer. The tOner-colleCting deveLoPer-cARRyiNg member coLlects thE residual TOner oN ThE toneR caRrying MeMbeR effeCtivelY By uSing tHis devElOper (caRrier). aS DescribeD above, the residual toner iS effecTivelY coLlected frOm tHE deVeloper caRryiNg member, anD thEn tHe devEloPEr carRyinG MeMbeR Is supPlieD With the toNEr To bE USeD for the next DEVEloPment, TheREby solVing The problem of the deVElopment historY.
HowEVEr, iN thE AppaRaTus disclosed by japAnESE Patent APpLication PubLication no. h10-319708, The deVelopeR (carriEr) existS BEtWEen the ToneR-suPplying deVelOpER-carryiNg MeMBer and The tOnEr-collEcting DEvelOPEr-carrying member, And thERE is a pROblEm thaT lEakage cURrenT occurs
 affects an electrostaticlatent ima ge, a ndcar ri er a dher es on a backgr o undof an image.
A hybriddevel op m entm et hod,which m a ke s use  o fthe  s t ro ng po int s of th e single-c omp on ent developi n gmethod and  th e two compon ent  devel op ing metho d,is pr oposed in Jap anese Pat en t  Appli c ation P u b li cati on No. H03-113474 .  A developer is m ade of  t h et w o-c omp onent deve lo per c o ntainin g  a c a rri e r and a toner , and the t o ner  is ch ar ged by bei ng st ir r edwithin a de velo per conta iner.T his dev e loper i s conv eye d b y th e  d ev elo pe r  ca r ry ing mem ber (mag ne trolle r),a n d theton er i s adh ered onto the  su rfac e  of  thetoner  car ry ing m emberby an  e lectric field.With  the tone r o nthe  t onerc arryin g m emb er, anelectro s tat ic l a te nt image on an ima ge c ar rying me mber i s  d ev e loped. I nthi s hy b r id de velo p me nt metho d, the to ne r is ch ar ged by  b ein g m ixedw iththe ca rrier, a nd si n ce only the to n er performs d e ve l o pm e nt,hig h definitio n an d  end uran c eare bothattai na b le . 
However, the hybri ddevelo pment  method has a  problem c a l l ed a dev elop m en t  history (ghos t), w hich is ap henomeno n tha t an aft erimage o f residual  to ner , w hic h wa s not used fo r deve lo pment,onthe ton ercar ryi ngme mber appe ars with  a  d en si tydiffe r ence aft er  th efol lowin g  devel opmen t pr oc es s .
A s a met h od o f so lv in g th e p ro blemin t h ishybriddevelopme ntm etho d,  J apanese  Patent Appli ca tion Publi ca tio n No.H 1 0-319708  discloses, an apparatu s , which  is  prov ided  with a t one r-coll ect i ng dev eloper -carr yi ngm e mberf o rcol le cting resi d u altoner  o n th e toner  carrying member i n  ad dition to a t one r-su p p ly ing de v elo pe r -ca r r ying member for  supplying  t h etoner to t h e t on er carr ying me mber. In this  apparatu s, the to ne r-su p p lyi ng develop er-carry ing membe r  andt he  tone r-c ollect in g d evelo per-ca r ryi ng me mber a re  close ly ar ra nged. An d after supplying the t oner t o the  to ner carry ing mem ber fromthetoner-supp lyi ngdevel ope r -carr ying me mbe r , the  dev e loper, in wh ich t he  toner dens i t y  fe ll, i s d e livere d to  the toner-collec t ing developer- carr y i ngmem b er.Th e toner-collec tin gd e veloper- ca rrying memb er colle ct s  theresidu al ton er on t h e  t o ner ca rryi ngmember ef fec ti v ely byus in g  thisdeve lo per (c arrier ) . AS d escribed above,the r e s idual ton er is  e ffectiv e ly c ollected f rom the dev eloper  car rying  member ,and th enth e develope r  carrying  memb er is s up plie d w ith th e to n e r tobe u se d f or the ne x t  d e ve lo p men t, t hereb ysolv ing the p r oblem of  th e  develo pm ent h istory . 
H o w ever, in t heappar a t us disclos e d by Ja p anese  Paten t Appl ication Pub li cationNo. H 10-319708 , the dev e lop er  (ca rrier) e xi stsbe twe en  the toner-supp lying de veloper- c a rrying  me m bera nd the  t oner-collect ing d ev e loper-c a r ryi ng memb e r,and  th ereisa pr o blem that leakage curren t oc curs
 affects_an electrostatic_latent image, and carrier_adheres on_a_background of_an_image.
A hybrid development_method, which makes_use of the strong_points of the_single-component_developing method and the two component developing method, is proposed in Japanese Patent Application_Publication_No. H03-113474._A_developer_is made of the two-component_developer containing a carrier and_a toner,_and the toner is charged by being stirred_within_a developer container._This developer is conveyed by the developer carrying member_(magnet roller), and the toner is_adhered onto the_surface_of_the toner carrying member_by an electric field. With the_toner on the toner carrying member,_an electrostatic latent image on an image_carrying member is developed. In this_hybrid development method, the toner_is charged_by being mixed with the_carrier, and since_only the_toner performs development,_high definition and endurance are both_attainable.
However, the hybrid_development method has a problem called_a_development history (ghost),_which_is_a phenomenon_that an afterimage_of_residual toner,_which_was not used for development, on_the_toner carrying member appears with a density_difference after the following_development_process.
As a method of_solving the problem in this_hybrid development method, Japanese Patent Application_Publication No._H10-319708 discloses,_an apparatus, which is provided with a toner-collecting developer-carrying member for_collecting residual toner on the toner_carrying member in addition_to a_toner-supplying_developer-carrying member for_supplying_the toner_to the toner carrying member. In this_apparatus, the_toner-supplying developer-carrying member and the toner-collecting_developer-carrying member are closely_arranged._And after supplying the toner to_the toner carrying member from the_toner-supplying developer-carrying member, the developer,_in_which_the toner density fell, is_delivered to the toner-collecting developer-carrying member._The toner-collecting developer-carrying_member collects the residual toner on the_toner_carrying member effectively by using this_developer_(carrier). AS described above, the residual_toner_is_effectively collected from the developer_carrying member, and then the developer_carrying member is supplied with the toner to be_used for the_next development, thereby solving the_problem_of_the development history.
However, in the apparatus disclosed by Japanese Patent_Application Publication_No. H10-319708, the_developer (carrier) exists between the toner-supplying developer-carrying member and the_toner-collecting developer-carrying member, and there is a_problem that leakage current occurs