Fiżjoloġija u Funzjoni ta' Printers Termali
Printers termali qatt ma kienu aktar popolari milli huma llum. Jintużaw f'varjetà ta' industriji, minn sptarijiet sa cash registers li jistampaw irċevuti fi ħwienet tal-bejgħ bl-imnut u ristoranti. Printers termali saru speċjalment importanti fir-riċerka bijomedika minħabba li huma reżistenti għal ħafna mill-ambjenti ħarxa li jiltaqgħu magħhom fil-laboratorji. Allura kif jaħdmu dawn l-istampaturi?
Printers Termali vs Printers Diġitali
Printers diġitali (inkjet u laser) jiddependu fuq linka applikata għat-tikketti. L-inkjet printers jarmu l-linka permezz taż-żennuni, filwaqt li l-printers bil-lejżer jużaw interazzjoni elettrostatika biex joħolqu immaġni b'linka, li tiġi applikata fuq il-wiċċ tat-tikketta u mbagħad imdewweb mal-facestock. B'kuntrast, l-istampaturi termali jiddependu fuq is-sħana biex jiġġeneraw immaġini u jipprovdu stampi. Madankollu, hemm żewġ forom ta 'printers termali, kull wieħed bil-metodu uniku tagħhom ta' produzzjoni ta 'stampar: trasferiment termali u termali.
Printer tat-trasferiment termali
L-istampar tat-trasferiment termali jiddependi fuq it-tisħin tal-printhead direttament lejn iż-żigarella biex tipprintja l-output fuq it-tikketta. Żigarelli jistgħu jsiru minn xama ', reżina, jew taħlita tat-tnejn, kull wieħed b'vantaġġi u żvantaġġi differenti. Żigarelli tar-Reżina Pura joffru reżistenza massima għall-espożizzjoni kimika u temperaturi estremi, u mhux se smudge jew fade anke meta esposti għal solventi ħarxa, refriġerazzjoni jew awtoklavi, li jwasslu kwalità ta 'stampar eċċezzjonali. Iż-żigarelli tar-reżina tax-xama 'u tax-xama' huma inqas reżistenti għal dawn l-ambjenti tal-laboratorju, u jagħmluhom aktar adattati għall-istampar ta 'karta u tikketti għal skopijiet ġenerali għal skopijiet regolatorji.
All thermal transfer ribbons consist of a ribbon backing coated with wax, resin or wax-resin blends. When a label is printed, the heated pins of the print head heat and cool according to a pattern instructed by the microprocessor and guided by signals from the labeling software. The needles of the heated printhead then heat the ribbon's wax or resin, which melts and transfers from the ribbon's backing to the label. The used portion of the ribbon is then wound around the ribbon take-up shaft until the entire ribbon is used. Typically, the ribbon sensor notifies the system when the roll is completely empty, protecting the printhead from damage. There is also an end core sensor in the ribbon unwind, which senses when the ribbon stops unwinding by detecting the end of the ribbon that separates from the core.
printer termali
Direct thermal also uses heat to generate printouts, but instead of using ribbon as a source of ink-like material, the entire label is coated with leuco dye, a chemical that changes color when heated. The printer's "thermal head" generates heat directly on the label with the help of a "spring" that applies pressure to the thermal head as the roller feeds the label.
