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الموضوع: طلب بحث

  1. #1
    انجليزي جديد
    تاريخ التسجيل
    Dec 2010
    المشاركات
    7
    معدل تقييم المستوى
    50

    Awt12 طلب بحث

    السلام عليكم
    تكفوووووون ابغى بحث باللغة الانجليزية مكون من اربع او خمس صفحات عن طابعة الليزر لاتخذلوووني

  2. #2
    انجليزي فعال الصورة الرمزية أذكر الله يذكرك
    تاريخ التسجيل
    Oct 2010
    الدولة
    abha
    المشاركات
    102
    معدل تقييم المستوى
    196

    رد: طلب بحث الله لايهينكم

    فيه هذا اتمنى يكون على المطلوب
    بحث عن طابعة الليزر باللغة الانجليزية


    There is a laser printer, unlike inkjet printer uses a laser light beam for printing operations. It is also distinct from other printers print because of the speed as well as special high-precision rendering. It uses the techniques produced by Xerox (the process of creating an image by light on a platter of gold plated specifically charged) for printing.


    Can some laser printers in the market for print color pages a hundred and two hundred page per minute in color. Resolution is the main feature of a laser printer, and is measured in dots per inch (dpi). Set of resolutions offered by 300 dots per inch minimum to a maximum of 1200 dpi. Some laser printers achieve higher resolutions with a special technique is usually recognized, such as strengthening the resolution. Components of a laser printer, laser printer, a key assembly of the six key elements. • image processor with the memory of its own: this image processor has been programmed to convert the data to the text of bitmaps (horizontal bar of dots across the page as it is called raster line) that is stored in memory, and bitmaps, and ready for processing and printing. This is also known as raster image processor and image processor (RIP). • roller accused or charged corona wire: charge and Minister reel shipment emits electricity against photoreceptor (also known as the Unit Photoconductor), and spinning a delicate belt or belt, which deals with the explosive power on its surface. • sensitive drum (a bus-like alien): It is a cylindrical drum assembly that is constructed of very light material that is disposed of photons of light. These are the basic elements for a laser printer. • negatively charged ink: It is used to attract positive charges on the disc and print the desired images. • Fuser assembly: printer paper and cut through the rollers in the fuser Assembly where the temperature and pressure (up to 200 degrees Celsius) and took the plastic powder to the paper. • laser assembly: it emits a laser beam that travels to the sensitive drum, and help reverse the charges. The printing process is the first step for the printing process is the transfer of data from the computer or data storage device to the image processor for the printer. Rasterizes image data processor and convert the information contained in the graphic image, then send this image to the printer's memory in preparation for the 'Go'. At the same time, is sensitive and affects the spin drum roller or corona wire charge the accused. Drum corps or to confer on the negative charge of the drum, as a result of the latter acquires a negative charge fixed. This static charge remains on the surface of the cylinder as long as it's dark. At this point, and assembly of the laser emits a beam of light onto the photovoltaic revolving. Laser beam passes through a series of mirrors to focus, so that the barrel hit on the face of the selection. Is activated and the laser beam caused by the data stored in the memory image processor. At the points of the barrel hit by the laser beam, and reverse the charge from negative to positive (since these were areas of light, and they are no longer able to maintain a negative charge). Through this process, is shown on the image and drawn on the drum by the laser beam that is, to be printed positively charged parts of a revolving drum or photoelectric cell represents a complete picture of the text or image. Now, the drum or photocell affects negatively charged ink (black or fine, dry powder). This ink stick to all parts of the PV positive charge and leave all parts of the negatively charged alone. At this point, photocell bear the actual image. And then transferred, or photocell barrel more than rolls of paper and ink and for the latter. Paper with ink and then passes through the fuser assembly, which bonds the ink particles on the paper. Through a combination of heat (coming from a heat source within the tube and fuser l), and pressure, and toner (made of wax or other easily soluble substance) and get to the melting of the hostage with the newspaper. Then comes the paper to print. Maintained on a laser printer laser printer usually requires maintenance after the print about a thousand pages 50 (varies from printer to printer). Special procedure for maintenance of the entire Assembly is the vacuum, wash or change the rollers and paper management. And reels are included in the coverage of rubber fat, which is deteriorating at the end of the day, and dealing with paper oily dirt. And can usually be cleared with a piece of cloth dampened with moisture-free liquids or chemicals that can help restore grip rubber covering. And heating fuser rollers require oil replacement or refilling after a few hundreds of thousands of printed pages. Laser printer compared with other types of printers is quite expensive with more internal components, and thus require regular maintenance

  3. #3
    انجليزي فعال الصورة الرمزية أذكر الله يذكرك
    تاريخ التسجيل
    Oct 2010
    الدولة
    abha
    المشاركات
    102
    معدل تقييم المستوى
    196

    رد: طلب بحث الله لايهينكم

    http://en.wikipedia.org/wiki/Laser_printer
    واتمنى هذا يفيدك

  4. #4
    انجليزي جديد
    تاريخ التسجيل
    Dec 2010
    المشاركات
    7
    معدل تقييم المستوى
    50

    رد: طلب بحث الله لايهينكم

    الله يعطيك العافية

المواضيع المتشابهه

  1. طلب ياأخوات بسيط لوسمحتم بحث انجليزي بلغه سهله بسيطة
    بواسطة نوور في المنتدى منتدى اللغة الأنجليزية العام
    مشاركات: 0
    آخر مشاركة: 31-12-2008, 09:51 PM
  2. طلب مستعجل بحث(free time)
    بواسطة naif-26 في المنتدى منتدى اللغة الأنجليزية العام
    مشاركات: 2
    آخر مشاركة: 04-06-2007, 03:02 PM
  3. طلب بحث كامل متكامل!!
    بواسطة عاشقة الانمى في المنتدى النشاط اللاصفي للغة الانجليزية
    مشاركات: 3
    آخر مشاركة: 09-01-2007, 06:39 PM

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