What is a Printer?Printer (Printer) A printer is a device that is connected to the computer via a parallel port with 25 pins to show the result of the check is processed on a computer, in the form of letters or pictures that will appear on the paper. Printer are divided into 4 categories.1. dotmaetrik printer (Dot Matrix Printer). This dotmaetrik using the printer created on paper, direct print head of printer's head pin. (Pin) to print anything on paper. The needle is headings that make up the information will apply to the other needle beam in front of the head to knock over the ink onto the paper, it will cause a sharp point of information on paper, depending on the number of points. If the number of points, the more information that is printed on paper, very sharp. Dotmaetrik is suitable for printers that form a stacking pad, AAA. Several leading this type of printer. Use continuous paper printer This type of printer is still in use as a public enterprise.2. spray ink printer (Printer Ink-Jet) Printer ink can be printed in characters with very different sizes, and include: Print the results, already produces more than dotmaetrik printers. Printer technology throws a small drop of ink, paper, ink droplets to be very small. Each point will be in a position that, when assembled, is a letter, or an image to suit your needs. Print this will print the sheet nesting was not AAA. But with the ability to print fast and noise There is a measure of speed is in print in pages per minute PPM (Page Per Minute) the capabilities of the printer are developed, more permissions are lueay depends on the implementation, but must be used as factors as well as of the current (2545 (2002)) can print centres up to 4800x1200 dpi (Dot per inch).3. laser printers (Laser Printer) This type of printer, static technologies rely on the same Copier bep General beam from the laser diode to emit light to the.กระจกหมุน เพื่อสะท้อนไปยังลูกกลิ้งไวแสง ซึ่งจะปรับตามสัญญาณภาพหรือตัวอักษรที่ได้รับจากคอมพิวเตอร์ และกวาดตามแนวยาวของลูกกลิ้งอย่างรวดเร็ว สารเคลือบที่อยู่บนลูกกลิ้งจะไปทำปฎิกิริยากับแสงแล้วเปลี่ยนเป็นประจุไฟฟ้า สถิตย์ ซึ่งทำให้ผงหมึกเกาะติดกับพื้นที่ที่มีประจุ เมื่อกระดาษพิมพ์หมุนผ่านลูกกลิ้ง ความร้อนจะทำให้ผงหมึกหลอมละลายติดกับกระดาษได้ภาพหรือตัวอักษร เนื่องจากลำแสงเลเซอร์ได้รับการควบคุมอย่างถูกต้อง ทำให้ความละเอียดของจุดภาพบนกระดาษสูงมาก งานพิมพ์จึงมีคุณภาพสูงทำให้ได้ภาพและตัวหนังสือที่คมชัดสวยงาม การพิมพ์ของเครื่องพิมพ์เลเซอร์เสียงจะไม่ดัง4. the plotter (plotter) Plotter printers used a pen to write the information down on paper that is made specifically for the work on the engineering drawing and interior design are used for engineering and architects. Plotter works by using the scroll method you can use the pen to paper is 6-8 color working speed of the plotter unit inch per second. (Inches Per Second: IPS), which refers to the number of inches that can move the pen plotter on paper.The paper used to print. The paper used to print, it is called as heavy like lead 70 GSM was 70 is a GSM per square meter, which can be divided according to the usage as follows: > * Plain Paper into the paper with the based common stationary store. There is a popular size is 70 or 80 GSM. * Paper paper Paper is Glossy, it has its default size 90 GSM supports the 1440 dpi print-2880 dpi by the ink will not be absorbed into the back of the paper. * Matte Finish Matte paper, Paper for printing the configuration properties are not waterproof chart pics reflect the light. * Photo Photo Paper used for printing photos from digital cameras. There is a front and waterproof. Accommodate up to 2880 dpi specification information
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