Xaiv lub cav ntsuas rau kev ua haujlwm tsis yog qhov yooj yim tshaj plaws thiab cov txheej txheem qub, zoo li ntau tus neeg xav. Qhov tseeb, lub tshuab ntsuas raug xaiv tsis raug yuav sawv tsis ua haujlwm, lossis tawg sai sai, lossis yuav tsis tiv thaiv cov haujlwm uas tau muab rau nws.
Tam sim no muaj tsuas yog peb hom, thiab lawv txawv tsuas yog hauv kev tsim:
- Flatbed scanner. Qhov loj tshaj plaws ntawm cov khoom ntsuas me me no nyob rau hauv lub xub ntiag ntawm lub iav substrate uas qhov khoom yuav raug kuaj tau muab tso rau. Thiab thaum cov txheej txheem scanning pib, tus thawj uas dag muaj tsis tsiv. Hloov chaw, tus nqaj nws tus kheej mus thoob txhua qhov chaw ntawm daim tseem. Cov tshuaj txhuam no yog qhov ntau tshaj plaws, feem ntau lawv yuav tom tsev lossis hauv chaw ua haujlwm.
- Broaching scanners. Cov cuab yeej ntawm cov ntawv ntsuas no tso cai rau koj kom luam theej ntawv ntawm cov ntawv, tab sis cov ntawv xov xwm yuav tsis ua haujlwm, cia nyob ib leeg. Lawv zoo heev rau cov tshuab luam ntawv, qhov twg daim ntawv tso rau ntawm ib sab thiab tawm ntawm sab nraud. Tsuas yog nyob hauv lub tshuab luam ntawv nws xav tau rau kev luam ntawv, tab sis ntawm no yog kev thaij duab.
- Xaub scanner. Lawv lub npe hais lus rau nws tus kheej. Cov tshuaj txhuam no yog siv los thaij thaij duab thiab txuag cov duab hauv computer. Qee cov qauv ntawm cov pob zeb tawg tau twb muaj qhov no.
Tshuab ntsuas scanner yam
- Hu rau Image Sensor, uas txhais tau tias - hu rau lub suab sensor. Qhov tseem ceeb tseem ceeb ntawm hom ntawm lub sensor no yog nws cov qauv yooj yim. Qhov no txo qhov nyhav thiab tuab ntawm lub scanner thiab txo tus nqi scanner. Tab sis kuj muaj qhov tsis zoo. Cov sensor no muaj qhov tob tob hauv daim teb. Ntawd yog, yog tias qhov xub thawj scanned yog wrinkled los yog phau ntawv yog khoov ze rau hauv paus, ces cov duab thaij hauv lub computer yuav yog indistinct.
- Kev Ntaus Nuj Nqes Ntaus yog lub khoom siv txuas nrog them nyiaj. Cov sensor no muaj ntau qhov kev txiav txim siab zoo hauv daim teb thiab cov xim zoo nkauj. Ntawm kab ntsuas hluav taws xob nrog lub ntsuas hluav taws xob zoo li no, koj tuaj yeem luam theej tawm cov ntaub ntawv zoo ib yam thiab cov txiaj ntsig ntawm cov duab tsim tawm yuav zoo. Tab sis, raws li, nws yuav yog ib qho kim thiab loj scanner.
Qhov xav tau ntawm daim ntawv tsis siv neeg pub mis
Ua ntej tshaj plaws, txoj haujlwm no yuav tsim nyog yog tias koj npaj siab yuav luam theej duab tsis yog cov ntawv thiab cov ntawv xov xwm, tab sis cov lej loj ntawm cov nplooj ntawv sib txawv. Qhov tseeb, cov ntawv tau thauj khoom raws li mus rau hauv lub tshuab luam ntawv, tsuas yog hauv lub scanner muaj lwm txoj kev pub mis ntawm cov ntawv nrog tom qab thaij. Txoj haujlwm no yog muaj los ntawm flatbed thiab broaching scanners.
Ntau tshaj scannable hom
Feem ntau lub ntsuas scanner uas ua haujlwm nrog hom A4 txaus txaus. Thiab yog tias koj xav tau lub scanner rau cov ntawv loj A2, A1 lossis A0, tom qab ntawd koj tuaj yeem nrhiav nws hauv cov khw online, vim tias cov scanner zoo li tsis muaj muag nyob rau hauv lub khw muag khoom hauv computer yooj yim.
Lub scanner xav tau txoj haujlwm hauv tsev lossis kev ua haujlwm
Nws nyob ntawm kev daws teeb meem ntawm lub scanner. Feem ntau cov ntsuas teeb meem feem ntau muaj kev daws teeb meem hauv thaj tsam ntawm 600-1200 DPI. Qhov no yuav tsum txaus siv hauv tsev. Rau kev ua haujlwm tshaj lij, koj yuav xav tau lub scanner nrog lub teeb meem siab kawg ntawm 2000 DPI lossis ntau dua.
Xim qhov tob
Rau kev siv scanner li qub, ua kom muaj 24-ntsis xim xim yog tsim nyog. Tab sis yog tias tom qab luam theej duab nrog daim duab koj npaj siab yuav ua haujlwm ntawm lub khoos phis tawm, tom qab ntawd koj xav tau lub scanner nrog qhov tob xim ntau dua, 48 khoom yog qhov txwv.
Lub scanner yuav tsum muaj USB interface
Txawm hais tias feem ntau lub tshuab ntsuas twb muaj qhov interface no, koj yuav tsum tau ceev faj kom tsis txhob nco nws. Tus USB txuas tau yooj yim heev, nrog nws cov kev pab cuam lub tshuab ntsuas kab tuaj yeem txuas ob lub PC thiab lub laptop nqa tawm. Yog li no, thaum xaiv lub scanner rau koj tus kheej, koj yuav tsum coj mus rau hauv tus account lub xub ntiag ntawm USB txuas.
Tsav los ntawm USB lossis mains
Koj tuaj yeem yuav lub scanner uas ua haujlwm dhau ntawm USB chaw nres nkoj kom txuag hluav taws xob thiab ua kom qhov chaw ua haujlwm tsis muaj ntau. Xws li lub scanner tshem tawm cov hlau txhaws rau hauv qhov hluav taws xob.
Kev txhawb nqa operating system
Lub scanner yuav tsum muaj ntau txoj kab ke. Qhov no txhais tau tias nws yuav tsum ua haujlwm ntawm txhua lub operating system (Windows, Mac OS, Linux). Cov tshuaj txhuam no muaj nyob rau ntawm HP, Epson, Lexmark, Plustek.
