A printer's drum unit takes the toner inside a printer and transfers it to the paper during the printing process. This differs from a toner cartridge, which creates text and graphics by fusing a dust-like powder to the paper during the printing process.
The process starts when the printer receives a print command and then the drum unit's photo-sensitive roller attracts the toner. The toner goes from the roller to the paper with the help of some heat. When a drum unit starts to go bad, most printers tell users by showing some type of error message on the printer.Learn More
Wireless printing requires a printer that has WiFi capabilities or a print server. Some printers connect to the network through an Ethernet cable that plugs in to the router. Users can also set up their own print servers, though this option is more complicated and can be more expensive in the long run, according to About.com.Full Answer >
The function of a printer is to turn digital data into printed media. This could be text, or it could be graphic output. One of the earliest printers to come with personal computers was the dot matrix printer.Full Answer >
When a printer says “offline,” it means that the printer is not capable of printing. Usually, the reason is low toner or ink, paper jams, or loose or defective cables.Full Answer >
There are numerous places to sell used printers online through personal ads or direct sales. Personal ads can be listed on websites such as Craigslist, Ebay and Amazon. Other companies, such as Best Buy, Nextworth and Gazelle, may buy used electronics directly from the seller.Full Answer >