Laser printers are an integral part of virtually every business regardless of size. Although they are called laser printers, the laser does not ever touch the page nor does it write the information to the document. The printing process starts by receiving the print data form the computer application and storing it in the printer’s internal controller. The controller acts just as the RAM and CPU do in a desktop or laptop. After the data has been received the internal transfer drum is charged with either a positive or negative charge, most laser printers on the market use a positive charge to start.

The charge is placed on the transfer roller or drum using a laser to manipulate it and control the charges. This is referred to as an electrostatic image; it is the exact representation of the document in electrical charges. The positively charged transfer drum’s polarity is switched and attracts the positively charged toner particles and rolls them onto the paper medium. The paper is given an even higher negative by the transfer roller and thus pulls the toner particles away from the roller.

At this point the corona roller, or transfer roller, is discharged and gravity holds the toner on the page for a split second prior to adding the heat and fusing the toner to the page. Toner particles are encased in small wax pellets. The pellets melt into the page as the heat from the fusing unit is increased. When the heat is high enough the wax and toner adhere to very fabric and fibers of the paper medium permanently adhering the color and data to the document. To present colors this process will repeat for each color on each line of the document. This allows the printer to blend each of the four colors of toner appropriately for each shade of color.

Laser printers are an integral part of virtually every business regardless of size. Although they are called laser printers, the laser does not ever touch the page nor does it write the information to the document. The printing process starts by receiving the print data form the computer application and storing it in the printer’s internal controller. The controller acts just as the RAM and CPU do in a desktop or laptop. After the data has been received the internal transfer drum is charged with either a positive or negative charge, most laser printers on the market use a positive charge to start.

The charge is placed on the transfer roller or drum using a laser to manipulate it and control the charges. This is referred to as an electrostatic image; it is the exact representation of the document in electrical charges. The positively charged transfer drum’s polarity is switched and attracts the positively charged toner particles and rolls them onto the paper medium. The paper is given an even higher negative by the transfer roller and thus pulls the toner particles away from the roller.

At this point the corona roller, or transfer roller, is discharged and gravity holds the toner on the page for a split second prior to adding the heat and fusing the toner to the page. Toner particles are encased in small wax pellets. The pellets melt into the page as the heat from the fusing unit is increased. When the heat is high enough the wax and toner adhere to very fabric and fibers of the paper medium permanently adhering the color and data to the document. To present colors this process will repeat for each color on each line of the document. This allows the printer to blend each of the four colors of toner appropriately for each shade of color.