Wednesday, March 22, 2017

Inkjet Printer

An inkjet printer is non impact printer. It a computer peripheral that produces hard copy by spraying ink onto paper. A typical inkjet printer can produce copy with a resolution of at least 300 dots per inch ( dpi ). Some inkjet printers can make full color hard copies at 600 dpi or more. Many models include other devices such as a scanner , photocopier , and dedicated fax machine along with the printer in a single box.
In the inkjet printing mechanism, the print head has several tiny nozzles, also called jets. As the paper moves past the print head, the nozzles spray ink onto it, forming the characters and images. An inkjet printer can produce from 100 to several hundred pages, depending on the nature of the hard copy, before the ink cartridges must be replaced. There is usually one black ink cartridge and one so-called color cartridge containing ink in primary pigments (cyan, magenta, and yellow). Some inkjet printers use a single cartridge with cyan, magenta, yellow, and black ink. A few models require separate cartridges for each primary pigment, along with a black ink cartridge.

Inkjet Printing Process:
The main Components of an inkjet printer are as follows:
  • Cartridges - The container that holds the ink. Some contain the print head.
  • Print Head Assembly - Contains the nozzles for ink spraying.
  • Rollers - Moves the paper as it's printing.
  • Print Head Steppor Motor - Moves the cartridges and head back and forth. Some have a park motor to prevent the head assembly from moving when it's not being used.
  • Paper Feed Steppor Motor - Powers the rollers.
  • Belt - Connects the assembly to the motor.
  • Stabilizer Bar - Makes sure the roller movement is consistent and the printing is precise.
 Some advantages
Initial Cost
Ink-Jet printers are one of the lowest cost products on the market. In the past, the quality of low inkjet printers have matched with its price.
Quality
Today you can create images or documents with high quality by Inkjet printers. They used to use blurry effect to the texts or images before but with the powerful technology now, you are able to create more effects so that your images are more vivid and have the best quality.
Space
Compare to laser printers, the ink jet printers have suitable size to put on the desk on your office or a small room in your home to serve to your work.
Time
Different from laser printer, the inkjet printer do not require time to heat the machine system before print. They have also shorter delay between the document being sent to print and the beginning of a print process.
Disadvantages
Cartridge Cost
You can buy a cheap inkjet printer first but with the replacement of the cartridges in a long time, the cartridge cost can exceed the machine cost.
Speed
You can only use ink-jet printer to create little volumes of documents only because inkjet printer is slower than laser one.
Ink
The replacement of cartridges causes some unexpected problems in the printing process. The most trouble we commonly face is when the printers are clogged with ink. There are cleaning cycles in inkjet printers to run but you must replace cartridges after used many times.
Moisture
After creating images or documents,we must wait until those dry. Sometimes it can delay our delivery process. There’s some risk if our documents smudge before drying.

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