Printer ink cartridges and their types

Every printer needs an ink cartridge. And these cartridges differ for different types of printers. Most ink cartridges have one or more partitions of ink stored in them. Some of these cartridges also contain an electronic chip for communication with the printer. There are mainly two types of printer ink. They are thermal and peizo electric. All the printers manufactured by companies like HP, Canon and Lexmark except Epson use the thermal ink. The thermal ink cartridges contain ink reservoirs with a metal and a resistor with a nozzle. According to the signal sent, the resistor heats up the metal and the ink surrounding it vaporizes and enters nozzle from where it is printed on to the paper. All Epson printers use only peizo electric printer ink cartridges. They have a peizo crystal which responds physically with the signal sent and controls the amount of ink delivered on to the paper.
By: Sandeep Mahanthi

Canon Digital Cameras

Canon is a multinational company and one of the top producers of digital cameras. Canon produces both point to shoot and professional digital SLR cameras. The canon powershot series is a point to shoot cameras which have become popular mainly because of their simple design and interface with robust features. Powershot cameras are the one of the most selling camera series worldwide. Powershot G is another series which is a near SLR, but still point to shoot camera. It is a prosumer photography model. Canon digital IXUS is a compact line of digital cameras. These cameras have very small physical dimension with good features and optics. EOS is a professional grade DSLR camera series. EOS was a name derived from the previous models of film SLR cameras and is still being continued for DSLR cameras of Canon. Apart from these digital cameras, Canon is one of the world leaders in producing photography lens with super zoom capabilities.
By: Sandeep Mahanthi

About Inkjet Printer Technology

An inkjet printer is a type of computer printer which makes a image by propelling droplets of ink on to paper. This kind of printer is the most commonly used type of printer technology in use today around the world. The inkjet printing technology originated in the 19th century and was mostly developed in the 1950s.  Then in the late 1970s these printers were developed. The inkjet printer market is mainly controlled by Epson, Hewlett-Packard (HP), Canon and Lexmark. Although there are many other companies who make inkjet printers, these are the leading brands in the market. There are two kinds of technology which are used in inkjet printers. One is called continuous (CIJ) and the other is called Drop-on-Demand (DOD). We will explain these in future posts.

Related Brands
HP Hewlett Packard
Epson America
Lexmark
Canon

Computer Scanners Have Been Here Since 1975

Computer scanners are one of the most widely used peripheral devices in the corporate world. It is used to scan documents, images and objects. There are a wide range of scanners in the market to choose from depending on your needs and requirements.

The computer scanner was first invented in 1975 by Ray Kurzweil. One of the most widely used scanner is the flatbed scanners. By the word itself this device has a flat/platen glass area on which the document lay down on to scan. Flatbed scanners are typically used for small quantities of documents unlike a high speed document scanner whose job is to handle large quantities of documents. Speeds of 20-50 pages per minute are common for high speed scanners.

An example of one these fast scanners is Canon's imageFORMULA DR-M140 Document Scanner. It was designed for high speed scanning at an affordable price.