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PRINTERHO

Printer (Printer tajhizoti chopkuni) asbobest, ki baroi dar kogaz khorij namudani informatsiya khizmat merasonad. Ba vositai printer na tanho informatsiyai matni, balki rasmu grafikhoro niz chop namudan mumkin ast. Printerho ham ba misli monitorho informatsiyai tasvirshavandaro dar namudi ranga va siyohu safed khorij karda metavonand. Printerhoi ranga az printerhoi muqarrari qimattarand. Printerho vobasta az tarzi korashon matrisavi, rangposhanda va lazeri meshavand.

Printerhoi matrisavi yo nuqtavimatrisavi on printerhoe ba hisob meravand, ki onho solhoi 80um va avvali solhoi 90um baroi kompyuterhoi IBM PC az hama pahngashtatarin budand.

printerHolo onhoro printerhoi rangposhanda va lazeri az istifoda tang karda barovardaand. Sifati chopi onho nisbatan past buda, hangomi chopkuni sadoi baland mebarorand. Azbaski narkhi onho az digar printerho khele arzontar ast, printerhoi matrisaviro holo ham dar bisyor korkhonavu muassisaho didan mumkin ast. Prinsipi kori in printerho chunin ast: qismi chopkunandai printer az qatori suzanchahoi boriki metallii ba tavri amudi joygirbuda iborat ast. Qismi chopkunanda bo samti satri chopshavanda harakat menamoyad va suzanchaho dar vaqthoi zaruri az boloi lentai rangkardashuda ba kogaz zarba mezanand. In boshad, tashakkulyobii simvolho va ishoravu tasvirhoro dar kogaz tamin menamoyad.

Printerhoi rangposhanda baroi kompyuterhoi IBM PC holo namudi pahngashtatarini printerho ba shumor meravand. Dar in printerho tasviri simvolu rasmho bo yorii mikroqatrahoi ranghoi makhsus tashakkul meyoband, ki in mikroqatraho bo vositai naychahoi boriki dar qismi chopkunandai printer mustahkamkardashuda ba kogaz poshida meshavand. Dar qismi chopkunandai printerho az 50 to 200 chunin mikronaychaho mavjudand. Dar printerhoi rangposhanda niz ba misli printerhoi matritsavi qismi chopkunanda ba samti ufuqi harakat menamoyad. Pas az chopi har yak khati ufuqii tasvir, kogaz ba samti amudi ba pesh harakat mekunad va dar natija pay dar pay tasviri zaruri dar kogaz paydo meshavad. Sifati chopi printerhoi rangposhanda az sifati chopi printerhoi matrisavi khele baland ast. Hangomi chopkuni printerhoi rangposhanda ovozi ziyod namebarorand. Bo yorii in printerho chopi rangai az hama arzontarro hosil namudan mumkin ast.

Printerhoi lazeri sifati az hama balandtarini chopi ranga va siyohu safedro tamin menamoyand. Sifati chopi in printerho ba chopi tipografi khele nazdik ast.

Dar printerhoi lazeri prinsipi kserografi istifoda burda meshavad: tasviri simvolu predmetho ba kogaz ba vositai barabani makhsus guzaronida meshavad, ki ba on hissahoi khoka (toner) ba tavri elektriki mechaspand. Farqi in printer az apparati kserokopiyakunanda dar on ast, ki barabani chopkunandai on ba vositai komandai kompyuter bo yorii lazer elektrizonida (zaryadnok kardan) meshavad. Printerhoi lazeri az hamai digar namudi printerho surati balandi chopkuni doshta, baroi chop kogazi makhsusro talab namekunand. Masalan, surati chopi printerhoi lazerii fardii HP LaserJet 5L yo 5P odatan dar yak daqiqa 45 sahifaro tashkil medihad. Dar printerhoi ofisii HP LaseqJet 4 yo 5 boshad, in adad ba 8-12 sahifa merasad.

Savolho:

  1. Printerho chi vazifa dorand?
  2. CHand namudi printerhoro medoned?
  3. Printerhoi matrisavi chi guna kor mekunand?
  4. Printerhoi rangposhanda az matrisavi chi farq dorand?
  5. Prinsipi kori printerhoi lazeri chi guna ast?

Suporish:

  1. Matni mavzuro bodiqqat khoned va onro naql kuned.
  2. Dar borai printerho va namudhoi onho fikratonro dar daftar bayon namoed.
  1. Agar dar sinfkhonai kompyuteriaton printer mavjud boshad, on goh namudi on va kharakteristikahoyashro nombar kuned.
  1. Tarzi istifodabarii printerro bo yorii muallim omuzed.

 

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