COMPUTER FUNDAMENTALS

COMPUTER PERIPHERALS

PRINTERS AND SCANNERS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When a thermal printhead passes over the film ribbon, what melts onto the paper?
A
Toner
B
Wax
C
Dye
D
Ink
Explanation: 

Detailed explanation-1: -Thermal-printing technology can be used to produce color images by adhering a wax-based ink onto paper. As the paper and ribbon travel in unison beneath the thermal print head, the wax-based ink from the transfer ribbon melts onto the paper.

Detailed explanation-2: -Laser Printers. Laser printers are similar in many ways to photocopiers: Both use an electrostatically charged drum to receive the image to be transferred to paper. Both use a fine-grained powdered toner that is heated to adhere to the paper.

Detailed explanation-3: -Dot matrix printers typically use a print head that moves back and forth or in an up-and-down motion on the page and prints by impact, striking an ink-soaked cloth ribbon against the paper, much like the print mechanism on a typewriter or line printer.

Detailed explanation-4: -The fuser applies heat and pressure to the page to melt the toner particles and bond them permanently to the paper. The fuser moves the paper to the redrive rolls which move the paper to the output bin. If the fuser rollers are damaged, they can cause toner to be pulled off the page or cause paper jams.

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