3.8 Printers and their maintanence

Q: What component receives the image in a laser printer?

A: Photosensitive drum

Q: What does the laser do to the drum?

A: Removes the negative charge to create the image

Q: How does toner stick to the drum?

A: It sticks to areas where the charge was removed

Q: What is the function of the fuser?

A: Uses heat and pressure to permanently bond toner to paper

Q: What is included in a printer maintenance kit?

A: Rollers, fuser, and other worn parts

Q: When should a maintenance kit be used?

A: After a certain page count (manufacturer recommendation)

Q: Why must you be careful with the fuser?

A: It gets very hot

Q: What should you do after maintenance is complete?

A: Reset the page counter

Q: What is a common problem with inkjet printers?

A: Clogged print heads

Q: What causes streaks or missing colors on prints?

A: Clogged or dirty print heads

Q: How do you fix clogged print heads?

A: Run cleaning cycle (automatic or manual)

Q: What does CMYK stand for?

A: Cyan, Magenta, Yellow, Black

Q: Do thermal printers use ink?

A: No

Q: How do thermal printers print?

A: Heat-sensitive paper turns black when heated

Q: What type of paper do thermal printers require?

A: Thermal (heat-sensitive) paper

Q: Where are thermal printers commonly used?

A: Receipts, labels, POS (Point of Sale) systems

Q: How does a dot-matrix printer print?

A: Pins strike a ribbon to form characters

Q: What is a key advantage of impact printers?

A: Can print multi-part (carbon copy) forms

Q: What is a major disadvantage of impact printers?

A: Noisy and low print quality

Q: What is an OPC drum sensitive to?

A: Light

Q: What happens if toner gets on skin?

A: Clean with cold water (hot water makes it worse)

Q: What happens when you replace some ink cartridges?

A: You may also replace the print head (in some models)

Q: What do feed rollers do?

A: Move paper through the printer

Q: What is tractor feed used for?

A: Feeding continuous paper with holes on the sides