POS ntawv yog dab tsi?

Point-of-male (POS) daim ntawv yog ib hom ntawv thermal feem ntau siv hauv khw muag khoom, khw noj mov thiab lwm yam lag luam los luam cov ntawv txais nyiaj thiab cov ntaub ntawv sib pauv. Nws feem ntau hu ua cov ntawv thermal vim tias nws tau coated nrog cov tshuaj uas hloov xim thaum rhuab, tso cai rau kev luam ntawv sai thiab yooj yim yam tsis tas yuav muaj ribbon lossis toner.

POS ntawv feem ntau yog siv nrog POS tshuab luam ntawv, uas yog tsim los luam tawm daim ntawv txais nyiaj thiab lwm cov ntaub ntawv sib pauv. Cov tshuab luam ntawv no siv cov cua sov los luam tawm ntawm cov ntawv thermal, ua rau lawv zoo tagnrho rau kev luam ntawv sai thiab muaj txiaj ntsig hauv khw muag khoom lossis tsev noj mov.

POS ntawv muaj ob peb yam tseem ceeb uas ua rau nws tshwj xeeb thiab zoo rau nws txoj kev siv. Ua ntej, daim ntawv POS yog ruaj khov, kom ntseeg tau tias cov ntawv txais nyiaj thiab cov ntaub ntawv sau tseg kom meej thiab ua tiav rau lub sijhawm tsim nyog. Qhov no yog qhov tseem ceeb rau cov lag luam uas yuav xav tau los tshuaj xyuas cov ntaub ntawv sib pauv tom qab.

Ntxiv nrog rau nws cov kav ntev, POS ntawv kuj yog kub-resistant. Qhov no yog qhov tseem ceeb vim tias cov tshuab luam ntawv POS siv cov cua sov los luam tawm ntawm daim ntawv, thiab daim ntawv yuav tsum muaj peev xwm tiv taus qhov cua sov no yam tsis muaj smudging lossis puas. Qhov kev tiv thaiv tshav kub no kuj tseem pab xyuas kom cov ntawv txais nyiaj tsis ploj mus dhau lub sijhawm, tswj xyuas lawv qhov meej thiab pom tseeb.

Lwm qhov tseem ceeb ntawm daim ntawv POS yog nws qhov loj me. POS ntawv yob feem ntau nqaim thiab compact, ua rau lawv yooj yim haum rau POS tshuab luam ntawv thiab sau nyiaj ntsuab. Qhov loj me me no yog qhov tseem ceeb rau cov lag luam uas muaj qhov txwv qhov chaw txee, vim nws tso cai rau kev ua haujlwm zoo, yooj yim luam ntawv yam tsis siv qhov chaw tsis tsim nyog.

POS daim ntawv muaj nyob rau hauv ntau qhov ntau thiab tsawg thiab ntev kom haum rau ntau hom POS tshuab luam ntawv thiab kev xav tau kev lag luam. Qhov ntau thiab tsawg suav nrog qhov dav ntawm 2 ¼ ntiv tes thiab qhov ntev ntawm 50, 75, lossis 150 ko taw, tab sis qhov ntau thiab tsawg kuj muaj los ntawm cov neeg muag khoom tshwj xeeb.

Cov tshuaj txheej siv rau ntawm daim ntawv POS yog hu ua thermal txheej, thiab nws yog txheej txheej no uas tso cai rau daim ntawv hloov xim thaum rhuab. Cov txheej txheem kub-rhiab heev ntawm POS ntawv yog bisphenol A (BPA), uas paub txog nws qhov kub thiab txias. Txawm li cas los xij, nyob rau xyoo tas los no, tau muaj kev txhawj xeeb ntau ntxiv txog qhov muaj feem cuam tshuam txog kev noj qab haus huv cuam tshuam nrog BPA, ua rau muaj kev hloov pauv mus rau lwm qhov tsis muaj BPA.

BPA-dawb POS daim ntawv tam sim no muaj dav thiab pom tau tias yog ib qho kev nyab xeeb dua, kev xaiv ib puag ncig zoo dua. BPA-dawb POS daim ntawv siv cov txheej txheem kub-rhiab heev kom ua tiav cov xim hloov pauv yam tsis tas siv BPA. Raws li cov neeg siv khoom paub txog kev pheej hmoo ntawm kev noj qab haus huv ntawm BPA txuas ntxiv mus, ntau lub lag luam tau hloov mus rau BPA-dawb POS daim ntawv los xyuas kom muaj kev nyab xeeb ntawm cov neeg siv khoom thiab cov neeg ua haujlwm.

Ntxiv rau cov ntawv POS ntawv dawb, kuj tseem muaj cov ntawv POS xim thiab cov ntawv sau ua ntej muaj. Cov ntawv xim POS feem ntau yog siv los qhia cov ntaub ntawv tshwj xeeb ntawm daim ntawv txais nyiaj, xws li kev nce qib lossis kev tshwj xeeb, thaum daim ntawv POS preprinted tuaj yeem suav nrog cov khoom lag luam lossis cov ntaub ntawv ntxiv, xws li lub logo lag luam lossis txoj cai xa rov qab.

Hauv cov ntsiab lus, POS ntawv yog hom tshwj xeeb ntawm cov ntawv thermal siv rau kev luam ntawv txais nyiaj thiab cov ntaub ntawv sib pauv hauv khw muag khoom, khw noj mov, thiab lwm qhov chaw lag luam. Nws yog ruaj, kub-resistant, thiab muaj nyob rau hauv ntau qhov ntau thiab tsawg thiab ntev kom haum rau ntau hom POS tshuab luam ntawv thiab kev lag luam xav tau. Raws li ib puag ncig thiab kev noj qab haus huv teeb meem loj zuj zus tuaj, tib neeg tab tom tig mus rau BPA-dawb POS daim ntawv, muab kev lag luam nrog kev xaiv zoo dua thiab zoo ib puag ncig. Nrog nws cov yam ntxwv tshwj xeeb thiab ntau yam, POS ntawv yog qhov cuab yeej tseem ceeb rau cov lag luam tab tom nrhiav kom hloov kho lawv cov kev lag luam thiab muab cov neeg siv khoom kom meej, yooj yim-rau-nyeem ntawv txais.