There are many models of printing devices. Some are small and compact and can fit on your desk. Others are massive, taking up considerable floor space. Yet, regardless of size, most of these devices fall within four broad categories. These classifications are based upon the printing process. Generally these machines are categorized as ink-jet, laser, thermal, or dot matrix. Laser machines are primarily found in offices. The largest subcategory of these office machines are black and white printers.
Even though these machines have a higher initial cost, with more expensive toner, they print many more copies per cartridge. So, overall they are less expensive to operate, especially for those who print on a regular basis.
Some of the better models can print at nine thousand six hundred by two thousand four hundred dots every inch. This results in extremely clear prints. This quality can be achieve without sacrificing speed, due to the way these machines operate. On the other hand, non laser printers are much slower, with a maximum speed of about thirty pages each minute. The fastest laser devices can reproduce twelve thousands copies every hour. That is about ten times the speed of the other kinds of printing devices.
Laser machines utilize a mixture of powdered ink and tiny plastic pelts called toner. Toner cartridges can go unused for months without drying out. These cartridges hold enough toner that even with moderate daily use that they can last about a month. When they do run out, these cartridges are easier to refill than ink-jet cartridges.
Because these units use heat to fuse toner ink onto the page, they require a warm-up period at start up. After they are ready to go, they can start printing jobs faster than other types of printers. Many can start within fifteen seconds or less of receiving a job.
A number of these machines have the capacity of creating two sided prints. A page is printed on one side and sent to the duplex unit. From there, the paper is inverted and the backside is printed. A lot of these kinds of machines will also staple jobs as they are finished. Many even come with features found primarily in copy machines, such as the prioritizing of jobs. Some allow for job interruption.
Some versatile machines are called 'all in one machines.' They can serve as a scanner, a copier, and a fax machine as well. These types have a built in memory which can hold nearly six hundred pages at one time. This even decreases the print time as pages are sent before previously sent ones have printed.
Many of these machines function as shared printers. Traditionally they have been attached to their network by cable. Now, however, they can be attached through a wireless connection.
Black and white printers have actually been around a long time. Laser technology is the oldest of printing device technology. These machines have been a dependable work horse in the office for more than a generation. With their durability and reliability, they are likely to form the backbone of office printing for a long time.
Author Resource:
I have more reviews and information about laser printers at my Website.
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