Eyona engundoqo iimpawu vuavanyisi neentlobo zabo

Kuthekani ukuba kwakufuneka ukudlulisela umfanekiso nge eziprintiweyo ezingamaphepha e-mail? Mhlawumbi wonke umntu uyazi isixhobo ezifana ngeskena. Ayizi nje ukunceda abantu ukugcina iifoto ubudala, nto leyo eyenza kube nkqu nootatomkhulu bethu, iguqulelwe ifomati-elektroniki olunazo olunye amaxwebhu abalulekileyo ngaphandle kokuba ikhowudi yayo yemvelaphi kwi-PC.

Ngokubanzi, vuavanyisi - into elungileyo, yaye ngoku ofisi ezininzi nje ezinye endaweni yazo. Ukuze ngokufanelekileyo ukumisela umyalelo yeyiphi imodeli oyifunayo, kufuneka uhlole iimpawu eziphambili vuavanyisi.

Yintoni na?

Kulungile ukuba ujonge esayensi kwaye uchaze ngolwimi olulula, hlobo luni device. Vuavanyisi onoxanduva lokwenza inkqubo yokufunda, apho ejoliswe eliphakathi yokurekhoda tyaba (umz, iphepha). Ekugqibeleni, umsebenzisi wamkela uxwebhu yedijithali ukutshintshela ukususela umgama okanye ukugcinwa ngefomathi yekhompyutha. iziphumo ukuskena kwi umfanekiso umfanekiso wekhompyutha yenjongosenzi ngenxa ADC lwangaphandle. Emva koko, lo mfanekiso uthunyelwa computer nge inkqubo I / O.

Imizamo yokuqala

Bambalwa abantu bazi, kodwa iimpawu ezingundoqo vuavanyisi kuyaziwa abaphandi ukususela 1857. Ke enye yezixhobo mihla wenza Abbot of Florence Dzhovanni Kazelli. isixhobo wakhe wasebenza isalamane abangekaphuhli kakhulu kwithekhinoloji yangoku. Emva koko, ukuze ukutshintshela umfanekiselo umgama, kuyimfuneko ukuba wasibeka phezu igubu usebenzisa inki conductive, uze uhlolisise umfanekiso ngenaliti. Loo isixhobo ebizwa pantelegraf.

Kwakwesi-ngenkulungwane nesiqingatha yamachiza German olwenziwa experiment lwabo apho abenzi ngefeksi. Arthur Korn liphuhlise indlela kuba ayisuse yombane. Umgaqo akuzange kube lula: umfanekiso saqhotyoshelwa zonke igubu efanayo, kodwa ngaphaya. Isibane Kwathiwa fixed ukuze kwemali yokukhanya ungahambisa. Wacanda kumfanekiso original waza wathumela photodetector selenium, uze emva koko yayize ngokusebenzisa kwimilo kunye lens.

Le semiconductor fast ngokukhawuleza, lo photodetector ngokukhawuleza eziphuculweyo. Ngaphandle kokuba kamva basungula indlela tablet, lo mgaqo zahlala zilolo hlobo zazilulo.

iimpawu

Phambi kokuba bajongane iintlobo, kufuneka sinikele ingqalelo ngokweemfuno vuavanyisi. Them kukho spectrum, yaye akukho yokuhlela eqhelekileyo. parameter nganye luxhomekeke kwinjongo kwefowuni. Noko ke, kukho impawu ezingundoqo, nekufuneka zikhethwe kunye isithwebuli. Phakathi kwabo, isantya, umbala ubunzulu, ngesisombululo mifanekiso, njl

Ubuhle iinkcukacha

Iinkcukacha Scanner zingafani, kodwa sigqibo yenye main iparameters. Ngamazwi alula: i Umninipropati nguye onoxanduva lwako ubungakanani iinkcukacha zincinane umfanekiso eziya kudluliselwa ngexesha kwemita yovavanyo. Sigqibo kucacisiwe dpi. Eli xabiso ibonisa inani lee-pixel ezibonakalayo nganye imifanekiso intshi. Ngokuqhelekileyo, umenzi lixela intsebenzo zontathu Izisombululo:

• mechanical;
• okubonakalayo;
• zelwe.

Okokuqala kufuneka amisele indawo wenqwelwana kunye CCD-umgca ngexesha intshukumo mfanekiso. Into yokuba isisombululo mechanical kabini kumenzi woqondo isebenzisa nxamnye umsebenzisi engagunyaziswanga. I TX uveza ukuba ixabiso woqondo yi 300h600 dpi. Kodwa ukuba icebo akukho zelwe, izakusebenza ubuncinane 300 dpi.

Isisombululo uthathwa linoxanduva ubukhulu apho zingafumaneka ngokuthi izinga umfanekiso ukuya izihlandlo ezili-16. Enyanisweni, lo parameter mncinane, kwaye phantse abaqhubeki naziphi na iinkcukacha ezongezelelweyo. Kodwa umvelisi wayo ingasetyenziswa ngokuchasene umthengi, esalatha kwibhokisi ka 4800 dpi. Eli nani linokuba kubethelela umntu makangazi. Kodwa nabani na, ukuba ungazazi nje iimpawu vuavanyisi, kodwa wayeza ukuthenga isixhobo kufuneka luthathele ingqalelo ukuba ixabiso elililo woqondo inokuba dpi 300 kuphela.

Le ngxoxo engundoqo - oko resolution optical. Ukuchaza oko, kufuneka babale yoxinaniso izakhi kumgca ekukhanyeni-onovakalelo. Ukuze benze oku, inani iinxalenye wahlukana yi ububanzi bayo. Olu khetho, njengoko kuchaziwe ngaphambili, yeyona kakhulu ekumiseleni imifanekiso iinkcukacha. Ngoko ke, kunqabile ukufumana kwibhokisi kunye nefowuni, njengoko zombini umenzi kunye umthengisi ukuzama ukufihla amanani wokwenene.

Amanani 'Dry "

Njengoko kuchaziwe ngaphambili, akukho lula ukuba ukhethe icebo. Iimpawu yabavavanyi uyabaphazamisa nomthengi ongenamava, ngoko ngaphambi kokuba uthenga siqonde ngcono ukuba isicwangciso nganye. I-bit elandelayo emva kokuba isigqibo kukuthi, ubunzulu okanye umthunzi. Le kwabalinganiswa ibonisa inani ziikhowudi ezifunekayo ukugcina ulwazi umbala pixel nganye. kancinane of yabavavanyi abamnyama nabamhlophe kwinkumbulo. Baye bit omnye. Ezinombala kancinci kakhulu - 8, kunye nombala - 24 ziintanda. Yabavavanyi ngaphezulu ingxenye eninzi isenokuba 36-bit.

ngobunzulu bombala ongaphandle nangaphakathi. Ezi zikhombisi kucacise umenzi. Internal bit Lubonakala analog-to-digital sombane, inceda ukufumanisa inani imibala ukuba "bona" vuavanyisi. Ubunzulu lwangaphandle - inani imibala ukuba icebo uyakwazi ukuba atshintshele PC.

Ukuba ufuna icebo kwi-ofisi okanye ikhaya, efanelekileyo eqhelekileyo bit - 24 bit. Ukuba vuavanyisi kufuneka kwishishini yoshicilelo kunye nemibutho efana, kungcono ukuba ukujonga kwiyunithi ziikhowudi 48.

mninzi optical

Kweli isithwebuli iimpawu musani iphele khona. Kukho loxinano eliphezulu okubonakalayo. Ukuba ngaba uye kungena iinkcukacha kunye neengcaciso yenzululwazi, kukuba nako kwefowuni ukuvavanya imifanekiso ezimnyama: uvakalelo esixhobo, idijithali ngcono kwiindawo ezimnyama mfanekiso.

Kunye nale khetho kukho optical uluhlu loxinano. Oku kungabalelwa kunye logarithm wokugqibela. Yeyona umlinganiselo ubungakanani bokukhanya ngesiganeko kwiphepha leempendulo ukuya mali ziboniswe. Uluhlu avareji ixeshana-24 ubude ilizwi kufuneka ibe 1,8-2,3 D.

speed

Esi sicwangciso kwakhona baye bakhohlwe ukhankanye akasichazeli yatywatyusha. Noko ke, umlinganiselo isixhobosovavanyo lwemifanekiso kuxhomekeke kwizinto ezininzi. ephambili yokuqala ekusonjululweni kunye nobukhulu yokuqala. Izinga asenokubonisa ukuba inani lamaphepha ngomzuzu, okanye nje ixesha apho iphepha elinye phambili. Kukho kwakhona yokukala imigca ngomzuzwana.

Ubungakanani kwindawo scan naye zinokohluka. Isisombululo iqhelekileyo - uyibhala A4. imifuziselo anjalo afumaneka kwiiofisi kunye namakhaya. On naliphi na ishishini Ungasebenzisa A3. Yabavavanyi ngesandla-eyayibanjwe ubungakanani band yi-11 cm.

interface

Ayisoloko iimpawu vuavanyisi zibaluleke ethile. Kolu didi, ungathumela i parameter isixhobo nje interface. Kunokuba ibe iintlobo ezininzi. Oku kuquka interface lwakhe umqambi. Kuye kusetyenziswa ngaphambili imodeli scanner. udumo lwakhe libunile emva ithuba ukuhlaziya yokusebenza kwenkqubo ye-PC. Oku kungenxa yokuba emva kwiintengiso okanye vuavanyisi, ndayihluthwa nokwandisa interface labo phantsi kwenkqubo ezahlukeneyo, kwaye ke ngoko, loo nto liyasebenza.

Le interface ilandelayo ifumene zibuko parallel, ngoku ukuba kufunyanwa iisampuli junior yabavavanyi flatbed. Ezi zixhobo baxomoloza luqhelekile musa ukuma ngaphandle. ngokuqhelekileyo zisetyenziswa ukuvavanya ifoto okanye isibini amaphepha lwesicatshulwa.

PCMCIA interface ingafunyanwa nayo kungafane, kodwa umgangatho SCSI kukuba izixhobo nomgangatho ophezulu kunye nokusebenza. Ngoku nale nojongano ukuvelisa umatshini enamandla ngakumbi nge-30 kunye bit-36.

USB-Aplikheyishini yokwenziwa kwemiYalezo - ukhetho zakutshanje kunye nendlela. Yena ngenkuthalo kucetyiswa ukuba imifuziselo ezininzi, ke, ayikho izixhobo isiphelo ophezulu ngokwaneleyo.

illuminant

Olu khetho kunqabile kuthathelwa ingqalelo xa ukhetha isithwebuli. Kukho iindidi ezintathu yokukhanyisa;

• xenon;
• ezibengezelayo;
• LED.

izibane Xenon zincinane, ukuba elide yaye zahluke ixesha elincinane ezifudumeleyo-up. Ezibengezelayo cheap ngokwaneleyo, kodwa ihlala ixesha elide kakhulu. LED mancinane, liyigqibele amandla kancinane kwaye shushu ngokukhawuleza. Ngokuqhelekileyo lo LED-yabavavanyi zakutshanje zithathwa ezikumgangatho ophezulu.

iyantlukwano

Emva koko weza ngqo vuavanyisi, ukuba uye iguqulwe kwaye ngeendlela ezininzi. Ngoku lesixhobo zihlelwe kwinani parameters. Iintlobo yabavavanyi kunye neempawu zazo ngoku nisuke naba yinto eqhelekileyo, kwaye okwangoku akukho ezintsha zeteknoloji kulo mhlaba anayenza.

Ukuba ndimaphule ezi zixhobo ngokweendidi, kuyimfuneko ukuba siqwalasele ezi mpawu zilandelayo:

• Umfanekiso bokwakha indlela;
• isakhiwo indlela kinematic;
• uhlobo lomfanekiso;
• iimpawu wokuqala;
• Ujongano: hardware ne-software.

iintlobo

Ngoko ke, uyakwazi ukufumana i lomvavanyi zonke iparameters ngasentla. Kungaba:

• tablet;
• ncwadi;
• manual;
• listopryazhnym;
• komhlaba;
• imigqomo;
• ultrasound, njl

Ngokubanzi, iintlobo isithwebuli lukhulu. Siza kuthetha malunga ezingundoqo kwaye ethandwa.

Tablet ngoku ithandwa kakhulu kwaye kulula ukuyisebenzisa. Ngokuqhelekileyo, le hlobo modeli umgangatho ophezulu kakhulu and fast. Efanayo ukubonakala cwecwe, ngoko got igama layo. Ukuvavanya umfanekiso kwiphakati enjalo, kufuneka uvule isiciko kwiphepha njengokwasesipilini lufakwa phantsi ngobuso, uvale isiciko ucofe "ukuqala".

isikeni Hand-egcinwe yi hayi injini. Ngoko ke, ukuba balunqhele umfanekiso, kufuneka ukuyisusa ngokwakho. Eyona ithuba iimodeli ezinjalo - ixabiso labo. Kodwa ke lobubi ezininzi kakhulu: Isisombululo amahlwempu, mgangathweni scan nesantya kade.

Book scanner iyilelwe ukwenza amaxwebhu broshyurnyh. Ukuze ajonge inkcazelo oyifunayo, akukho mfuneko walala phantsi i "ubuso", njengoko kweli cwecwe, kwaye phezulu. Umgangatho kuhle kakhulu.

isikeni Listopryazhny ayikho ukhululekile kakhulu. Ukuqhubekekisa noxwebhu uxwebhu lifakwa noqhoqhoqho Wazolulela ngapha nomphini ngaphakathi. Le isithwebuli isebenza kunye neefomathi ezithile kunye sheets single.

isixhobo yemihlaba isebenza amaphepha, ezithi zonakala lula. Akubikho ukunxibelelana isixhobo, apho kunokwenzeka ukugcina ingqibelelo mbandela.

unit apho igubu kwi amashishini polygraphic kwaye ukuvelisa umfanekiso ezikumgangatho ophezulu. yabavavanyi Slide ukusebenza izilayidi film. yabavavanyi yebhakhowudi sidibana lonke ixesha siye evenkileni kwirejista yemali. isixhobo 3D into entsha-fangled. Kunokuba scan izinto eziyinyani-hlabathi eziguqulelwe kwi ifomu yedijithali kwaye akuguquki umfuziselo-ntathu. Ultrasound Scanner - le ultrasound edumileyo, kusetyenziswa amayeza ukufunda amalungu zangaphakathi.

emine eyodwa

Kukho imveliso mininzi (MFP), idibanisa imodyuli amaphepha Indlela ifeksi, iprinta, isithwebuli. Iimpawu ezahlukeneyo yayo. Ngokubanzi, izixhobo ezinjalo kuba inkjet, laser okanye LED technology yoshicilelo on. Njengayo nayiphi vuavanyisi, i MFP kunokuba umbala okanye ezinombala ofanayo.

Inzuzo ephambili kwisixhobo eso kucingelwa ukuba isithuba ukonga ekhaya okanye kwi-ofisi. Umsebenzisi akuyomfuneko ukuba ukususa iphepha ukusuka kwindawo ethile ukuya kwenye. Kuyinto elula ukuba ukusebenza kunye isixhobo mnye. MFP kwakhona ngexabiso eliphantsi ngokwanelisayo, xa kuthelekiswa imali eyayiza kufuneka ukuze uhlawule yokuthenga isixhobo ngasinye.

Entsha ngo-2016

Xa uqhelene iimpawu vuavanyisi, unako aqale ukukhangela le fowuni. Lo nyaka kwakukho imifuziselo ezininzi ezintsha onokuba nomdla umsebenzisi. Umzekelo, HP ScanJet kugqibeke, luphawu oko kuyamangalisa, zinokubiza engange nje 2000. Kulo mzekelo, uya kufumaneka kwisixhobo kunye nobunzulu umbala we-bit 48 ukukrwaqula, ethandwayo Isidibanisi USB 2.0 kwaye iyahambelana kwiindlela ezisebenzayo. Ngokubanzi, i-HP vuavanyisi, uphawu leyo bekusoloko kwelona nqanaba liphezulu, ziinkokheli lemarike kule ingxenye. Le nkampani kwakhona iye imizekelo ebalaseleyo kwezixhobo mininzi.

Kulo nyaka, wabonakala phezu emarikeni kunye abo bachukunyiswe imisebenzi, kodwa ixabiso. Iinkcukacha Scanner Epson le Ukufezeka V850 Pro ngokwenene phezulu kakhulu. Ngaphandle nje kokuba esi sixhobo tablet uye i adaptha ukuze abatyibilikisi bhanyabhanya kunye ujongano USB 2.0, uphawu olona ukusonjululwa 6400 × 9600 dpi. Kunye nale iinketho ixabiso vuavanyisi i isusela ukusuka engange-80 ukuya kwi-100 lamawaka.

Phakathi sezipho kukho ukhetho mali. Iskena Canon CanoScan 9000F laliphakathi nje. isisombululo sakhe - 9600 × 9600 dpi. Ixabiso yi amawaka 12 engange. Reviews kule modeli ku "abacula." Eyona nto kukuba lezentengiso kwakhona kuzala 'ingoma' yabo, echaza iinketho nanto. Eneneni, endaweni ziikhowudi 48 sifumana 12 kuphela Oko kukuthi, kwisitishi ngasinye 16 endaweni ziikhowudi nje 12. Noko ke, kukho abo wanelisekile isantya yomsebenzi, inkjet nomgangatho izixhobo kwefowuni.

Ngokubanzi, ukukhetha isithwebuli elungileyo, izazinzulu musa akuyomfuneko ukuba, ingakumbi kubasebenzisi zesiqhelo. Ukuze scan amaxwebhu kunye iikopi kwesigqibo ephakamileyo iyafuneka. isantya esiphezulu Ultra nalo ayibalulekanga. Ngoko ke kungcono ukukhetha vuavanyisi ukuba ngenene uza kufuneka kuzo kusebenziso ngokupheleleyo.