1 Chimiro chemukati che laser printer
Chimiro chemukati che laser printer ine zvikamu zvina zvikuru, sezvakaratidzwa mumufananidzo 2-13.
Mufananidzo 2-13 Chimiro chemukati che laser printer
(1) Laser Unit: inoburitsa danda relaser rine ruzivo rwemavara kufumura iyo photosensitive chigubhu.
(2) Pepa Kudyisa Chikamu: dzora bepa kuti upinde muprinta panguva yakakodzera uye kubuda muprinta.
(3) Kugadzira Chikwata: Vhivha chikamu chakafumuka chedhiramu yephotosensitive ne toner kuti uite mufananidzo unogona kuoneka neziso rakashama, wouendesa pamusoro pebepa.
(4) Fixing Unit: Iyo toner inovhara pamusoro pepepa inonyungudutswa uye yakanyatsogadziriswa papepa uchishandisa kumanikidza uye kupisa.
2 Kushanda musimboti we laser printer
A laser printer chinhu chinobuda chinosanganisa laser scanning tekinoroji uye yemagetsi imaging tekinoroji.Laser printers ane mabasa akasiyana nekuda kwemhando dzakasiyana, asi kushanda kutevedzana uye musimboti zvakafanana.
Kutora yakajairwa HP laser printers semuenzaniso, kutevedzana kwekushanda kunotevera.
(1) Kana mushandisi anotumira murairo wekudhinda kune anodhinda kuburikidza nekombuta yekushandisa system, iyo graphic ruzivo ruchadhindwa runotanga kushandurwa kuita ruzivo rwebhinari kuburikidza nemutyairi weprinta, uye pakupedzisira inotumirwa kune main control board.
(2) Bhodhi guru rekutonga rinogamuchira uye rinodudzira ruzivo rwebhinari rwakatumirwa nemutyairi, rinogadzirisa kune laser beam, uye rinotonga chikamu chelaser kuti chibudise chiedza maererano neruzivo urwu.Panguva imwecheteyo, pamusoro peiyo photosensitive dhiramu inobhadharwa nemuchina wekuchaja.Ipapo iyo laser beam ine graphic ruzivo inogadzirwa neiyo laser scanning chikamu kufumura iyo photosensitive chigubhu.Mufananidzo we electrostatic latent unoumbwa pamusoro pedhiramu re toner mushure mekuratidzwa.
(3) Mushure mekunge katuriji ye toner yasangana neinosimudzira sisitimu, iyo yakamira mufananidzo inova inooneka mifananidzo.Paunenge uchipfuura nehurongwa hwekufambisa, toner inotamirwa kune pepa pasi pechiito chemagetsi echigadzirwa chekutumira.
(4) Mushure mokunge kuendeswa kwapera, pepa racho rinosangana nemagetsi-kubvisa sawtooth, uye rinobvisa mari papepa pasi.Pakupedzisira, inopinda muhutano hwekugadzirisa hutsika, uye magirafu uye zvinyorwa zvakagadzirwa ne toner zvakabatanidzwa mupepa.
(5) Mushure mokunge ruzivo rwemifananidzo rwakadhindwa, chigadziro chekuchenesa chinobvisa toner isina kuchinjwa, uye inopinda muchikamu chinotevera chekushanda.
Ese ari pamusoro apa maitiro ekushanda anofanirwa kupfuura nematanho manomwe: kuchaja, kuratidza, kusimudzira, kutamisa, kubvisa simba, kugadzirisa, uye kuchenesa.
1>.Charge
Kugadzira iyo photosensitive chigubhu chinotora toner zvinoenderana neruzivo rwemifananidzo, iyo photosensitive dhiramu inofanirwa kutanga yachajwa.
Parizvino pane nzira mbiri dzekuchaja dzemaprinta pamusika, imwe iri corona kuchaja uye imwe iri kuchaja roller kuchaja, ese ane maitiro azvo.
Corona kuchaja inzira isina kunanga yekuchaja iyo inoshandisa iyo conductive substrate yeiyo photosensitive dhiramu se electrode, uye waya yakatetepa kwazvo yesimbi inoiswa padyo nephotosensitive dhiramu seimwe electrode.Paunenge uchikopa kana kudhinda, mhepo yakakwirira kwazvo inoshandiswa kune waya, uye nzvimbo yakapoteredza waya inoumba simba remagetsi rakasimba.Pasi pekuita kwemunda wemagetsi, maion ane polarity yakafanana neye corona wire inoyerera ichienda pamusoro peiyo photosensitive drum.Sezvo iyo photoreceptor iri pamusoro peiyo photosensitive drum ine yakakwirira kuramba murima, iyo charge haizoyerere ichienda, saka iyo yepamusoro kugona kweiyo photosensitive dhiramu icharamba ichikwira.Kana iyo inogoneka ichikwira kune yakanyanya kugamuchirwa inogona, nzira yekuchaja inopera.Kuipa kweiyi nzira yekuchaja ndeyekuti zviri nyore kugadzira radiation uye ozone.
Kuchaja roller kuchaja inzira yekuchaja yekusangana, iyo isingade yakakwira yekuchaja voltage uye ine hushamwari hwakatipoteredza.Naizvozvo, akawanda laser anodhinda anoshandisa kuchaja rollers kubhadharisa.
Ngatitorei kuchaja yekuchaja roller semuenzaniso wekunzwisisa iyo yese yekushanda maitiro eiyo laser printer.
Chekutanga, iyo yakakwira-voltage yedunhu chikamu inogadzira yakakwira voltage, iyo inochaja pamusoro peiyo photosensitive dhiramu ine yunifomu yakaipa magetsi kuburikidza nechaji chikamu.Mushure meiyo photosensitive dhiramu uye yekuchaja roller ichitenderedza synchronously kune imwe kutenderera, iyo yese pamusoro peiyo photosensitive dhiramu inochajirwa neunifomu yakaipa charge, sezvakaratidzwa muFigure 2-14.
Mufananidzo 2-14 Schematic diagram yekuchaja
2>.kusadziviririka
Exposure inoitwa yakatenderedza dhiramu rine photosensitive, iro rinoburitswa nelaser beam.Pamusoro peiyo photosensitive dhiramu ndeye photosensitive layer, iyo photosensitive layer inovhara pamusoro pealuminium alloy conductor, uye iyo aluminium alloy conductor yakadzikwa.
Iyo photosensitive layer ndeye photosensitive material, iyo inoratidzwa nekuve conductive kana yaiswa pachiedza, uye inodzivirira isati yaonekwa.Isati yaonekwa, iyo yunifomu yekuchaja inobhadhariswa nechaji yekuchaja, uye nzvimbo yakavhenekerwa mushure mekuvhenekerwa nelaser inokurumidza kuita conductor uye inoitisa nealuminum alloy conductor, saka kubhadharisa kunoburitswa pasi kuti kugadzire nzvimbo yemavara pa. bepa rokudhinda.Iyo nzvimbo isina kudzikiswa nelaser ichiri kuchengetedza iyo yekutanga kuchaja, ichigadzira nzvimbo isina chinhu pabepa rekudhinda.Sezvo mufananidzo uyu usingaonekwe, unonzi electrostatic latent image.
A synchronous signal sensor inoiswawo mu scanner.Basa reiyi sensor ndere kuona kuti kureba kwekutarisa kunopindirana kuitira kuti laser beam yakavhenekerwa pamusoro peiyo photosensitive dhiramu inogona kuwana yakanyanya kunaka yekufungidzira maitiro.
Rambi relaser rinoburitsa laser danda rine ruzivo rwehunhu, iro rinopenya pane inotenderera yakawanda-yakatarisana inotaridzika prism, uye prism inoratidzira inoratidza laser beam kumusoro kweiyo photosensitive chigubhu kuburikidza neboka relens, nekudaro inotarisa iyo photosensitive chigubhu chakatwasuka.Iyo mota huru inotyaira iyo photosensitive chigubhu kuti irambe ichitenderera kuti ione yakatwasuka scanning yephotosensitive chigubhu nerambi rinoburitsa laser.Nheyo yekuratidzira inoratidzwa muMufananidzo 2-15.
Mufananidzo 2-15 Schematic dhayagiramu yekufumurwa
3>.development
Budiriro inzira yekushandisa musimboti wekuramba murume nemukadzi kukwezva machaji emagetsi kushandura iyo electrostatic latent image isingaonekwe neziso rakashama kuita mifananidzo inooneka.Pane mudziyo wemagineti uri pakati pemagineti roller (inonziwo kugadzira magineti roller, kana kuti magineti roller kwenguva pfupi), uye toner mubhini rehupfu ine magineti zvinhu zvinogona kutorwa nemagnet, saka toner inofanirwa kukwezvwa. nemagineti iri pakati peinokura magineti roller.
Kana iyo dhiramu yephotosensitive ichitenderera ichienda panzvimbo painobatana neinokura magineti roller, chikamu chepamusoro peiyo photosensitive dhiramu isina kuvhenekerwa nelaser ine polarity yakafanana neye toner, uye haitore toner;nepo chikamu chinovhenekerwa nelaser chine polarity yakafanana neye toner Pane kudaro, zvinoenderana nemusimboti wekudzinga-bonde-mumwe-kudzinga uye kukwezva-vasina-pabonde kukwezva, toner inonyudzwa pamusoro peiyo photosensitive dhiramu uko laser inovhenekerwa. , uye ipapo inooneka toner graphics inoumbwa pamusoro, sezvinoratidzwa mumufananidzo 2-16.
Mufananidzo 2-16 Development principle diagram
4>.kutamisa kudhinda
Kana toner ichiendeswa kunharaunda yebepa rekudhinda ine photosensitive drum, pane mudziyo wekuchinjisa kuseri kwebepa kuti uise kuchinjisa kwepamusoro kuseri kwebepa.Nekuti magetsi echishandiso chekufambisa akakwira kupfuura voltage yenzvimbo yekuratidzira yedhiramu ine photosensitive, magirafu, uye zvinyorwa zvinoumbwa ne toner zvinoendeswa kune bepa rekudhinda pasi pekuita kwendima yemagetsi yechishandiso chekuchaja, sezvakaratidzwa. muMufananidzo 2-17.Mifananidzo uye zvinyorwa zvinoonekwa pamusoro pepepa rekudhinda, sezvinoratidzwa mumufananidzo 2-18.
Mufananidzo 2-17 Schematic dhayagiramu yekuchinjisa kudhinda (1)
Mufananidzo 2-18 Schematic dhayagiramu yekuchinjisa kudhinda (2)
5>.Bvisa magetsi
Kana mufananidzo we toner uchiendeswa kune pepa rekudhinda, toner inongovhara pamusoro pepepa, uye chimiro chemufananidzo chinoumbwa ne toner chinoparadzwa nyore nyore panguva yekudhinda mapepa ekufambisa nzira.Kuti ive nechokwadi chekutendeseka kwechifananidzo che toner usati wagadzirisa, mushure mekutamisa, ichapfuura nemuchina wekubvisa static.Basa rayo nderokubvisa polarity, kusagadzirisa zvose zvinopomerwa uye kuita kuti pepa rive rakarerekera kuitira kuti pepa ripinde muchikwata chekugadzirisa zvakanaka uye kuve nechokwadi chekubudiswa kwekudhinda Unhu hwechigadzirwa, hunoratidzwa muMufananidzo 2-19.
Mufananidzo 2-19 Schematic diagram yekubvisa simba
6>.kugadzirisa
Kupisa nekugadzirisa ndiyo nzira yekushandisa kumanikidza uye kupisa kumufananidzo we toner wakashambadzirwa pabepa rekudhinda kuti rinyungudutse toner uye kuinyudza mubepa rekudhinda kuti iite graphic yakasimba pamusoro pepepa.
Chinhu chikuru che toner iresin, iyo inonyungudika ye toner inenge zana°C, uye tembiricha yekudziya roller yekugadzirisa unit inenge 180°C.
Munguva yekudhinda, kana tembiricha ye fuser inosvika tembiricha yakatemerwa ingangoita 180°C apo bepa rinotora toner richipfuura nepamukaha pakati pekupisa roller (inozivikanwawo seyepamusoro roller) uye iyo yekumanikidza rubber roller (inozivikanwawo seyo pressure lower roller, iyo yakaderera roller), iyo fusing process ichapedzwa.Iyo inogadzirwa tembiricha yakanyanya kupisa toner, iyo inonyungudutsa toner papepa, nokudaro ichigadzira chimiro chakasimba uye chinyorwa, sezvakaratidzwa muMufananidzo 2-20.
Mufananidzo 2-20 Principle diagram yekugadzirisa
Nemhaka yokuti pamusoro pehutu hunopisa hunoputirwa nekuputira kusiri nyore kuomerera kune toner, toner haigoni kuomerera pamusoro pemvura inopisa nekuda kwekushisa kwepamusoro.Mushure mekugadzirisa, pepa rekudhinda rinoparadzaniswa kubva kune inopisa roller ne claw yekuparadzanisa uye inotumirwa kunze kweprinta kuburikidza nepepa rekudya.
Maitiro ekuchenesa ndeyekukwenya toner pane photosensitive dhiramu isina kutamiswa kubva pamusoro pebepa kuenda kune tsvina toner bin.
Munguva yekuendesa, mufananidzo we toner pane photosensitive chigubhu haugone kutamiswa zvachose kune bepa.Kana iyo isina kucheneswa, toner inosara pamusoro peiyo photosensitive dhiramu ichaendeswa kune inotevera kudhinda kutenderera, ichiparadza chifananidzo chichangobva kugadzirwa., zvichikanganisa kunaka kwekudhinda.
Maitiro ekuchenesa anoitwa nerubber scraper, iro basa nderekuchenesa dhiramu rine photosensitive pamberi peiyo inotevera kutenderera kwephotosensitive dhiramu kudhinda.Nokuti blade yerabha yekuchenesa scraper haigoni kupfeka uye inoshanduka, blade inoumba kona yakachekwa nechepamusoro pedhiramu rinopisa.Kana iyo photosensitive dhiramu ichitenderera, iyo tona iri pamusoro inokweshwa mumarara ye toner bin ne scraper, sezvakaratidzwa muFigure 2-21.
Mufananidzo 2-21 Schematic diagram yekuchenesa
Nguva yekutumira: Feb-20-2023