Think of it as an instant 'electric' attraction. No, I'm not talking about the office heartthrob, but the laser printer in the office. It's there, all day, everyday, purring and turning out the pages, though few of us have a clue as to how it works. Apart from boffins of course, such as those at Hewlett Packard.
HP laser printers follow a tried and tested model to do with static electricity, the kind that makes a bolt of lightning strike the ground (or more prosaically, your clothes to stick together in a dryer). Put simply, this kind of printer uses a laser beam to project an image of your document onto a rotating drum, which is then sent an electrostatic charge. The toner – a dry powder – is attracted to the charge, which varies according to colour (though white does not need a charge). Heat bonds the toner to the paper and the drum rolls out the print.
Now, if your toner is not up to scratch, you're not going to get a quality print and you'll be wasting your time and money. Which is why you could think about the choice of toners on offer. HP black toner cartridges, for example, are designed to give you reliable and trouble-free operation. The company says its 'microfine toner provides consistent black coverage and exceptional printouts' so you're in line for crisp, clear documents.
That makes printing documents so much easier, with less wastage and no fretting over smudgy or faded prints. In case you're wondering how many pages you can get from a single cartridge, HP says that the page yield is 'approximately 4,000 pages at 5% coverage'. In other words, taking a page to be A4 or letter size, the page count is based on 5% coverage of individual colours.
Whatever your print run, just remember one thing – in the end it is the electrical attraction that keeps the printers purring happily. Much like people, really.
