HP inkjet cartridges
HP inkjet cartridges
Specifically for HP printers, the HP inkjet cartridges are very popular due to their being quieter than their predecessors. They also produce higher quality fine colour print, smoother details and are far more reliable. They take hardly any time to warm up and generally the cost per page to print is cheaper.
The HP inkjet cartridges for Inkjet printers are a replaceable part that contains the ink required to be spread on the paper while printing. Each cartridge contains at least one ink reservoir, possibly more. Also some manufacturers add chips or contacts that communicate with the printer.
HP use a thermal inkjet in their Inkjet printers. There is a heating element in each partition of the ink reservoir that has a small metal plate. When a signal is given by the printer, a tiny current flows though this plate, heating it up which is turn vapourises the ink surrounding it into a tiny air bubble inside the nozzle. An ink droplet is therefore forced out of the nozzle onto the paper. This process all happens in the blink of an eye! How good the print quality is depends on how smooth the flow of ink is. When the ink supply is low and printing is requested, the heating element in the cartridge can often burn out and damage the print head. To avoid this, it is important to replace cartridges as soon as the ink begins to run thin.
There a two types of head design on an inkjet, disposable head and fixed-head. The fixed-head is built in and designed to last as long as the printer which means that it does not need to be replaced every time the ink/cartridge runs out. However if this head gets damaged it can sometimes mean replacing the whole printer! The disposable head comes as part of the inkjet cartridge and each time the cartridge runs out the print head is replaced also. This obviously adds to the cost but means that a damaged print head simply means replacing the cartridge. HP generally favour the disposable head.
There are some challenges for the inks in cartridges, rapid dispersement being one of them. Inkjet printers tend to use aqueous inks which are made up of water, dyes and glycol. These inks are expensive to produce and difficult to control on the paper’s surface however they provide the most vivid colour and are extremely durable.