Showing posts with label Paper. Show all posts
Showing posts with label Paper. Show all posts

Sunday, December 16, 2007

Printers and Scanners: Paper Jams

A laser printer is experiencing paper jams. What should you do?
1. Clean the fuser assembly roller with water on a fibrous cleaning towel.
2. Replace the fuser assembly.
3. >>Use the maintenance software to realign the guide rollers.
4. Clean the rubber guide rollers using alcohol on a fibrous cleaning towel.

Explanation : You should clean the rubber guide rollers using alcohol on a fibrous cleaning towel. The guide rollers are responsible for moving the paper through the printer. They should be a little rough but clean. When they get dirt or paper dust on them, it can cause paper jams. You can clean them using alcohol on a fibrous cleaning towel. If they become too smooth, you can use alcohol on a non-metallic scouring pad to make them rough so they work better.

Replacing the fuser assembly will not resolve the problem. The fuser assembly is used to fuse ink to the paper, not to move the paper through the printer.

You should not clean the fuser assembly roller with water on a fibrous cleaning towel. A dirty fuser assembly roller is not the problem. Also, you should not use a fibrous cleaning towel and water to clean the fuser assembly roller. You should use alcohol and a soft cloth. You must be very careful not to scratch the fuser assembly roller.

You should not use maintenance software to realign the guide rollers. Ink jet printers include maintenance software, which can be used to realign the print heads. Laser printers have maintenance kits that contain spare parts.
Objective: Printers and Scanners

Sunday, November 25, 2007

Printers and Scanners: Damp Paper symptoms

What symptoms could result from using damp paper in a laser printer? (Select FOUR.)
1. >>Poor quality output
2. Fuzzy print
3. >>Unfused toner on the printed page
4. White streaks through the text
5. >>Multiple page feed >
6. >>Paper jams
7. Gray print

Explanation : Damp paper can cause paper jams, fuzzy print, poor output quality, and multiple page feed. Paper jams can occur due to damp paper because the paper needs to slide smoothly through the paper handling elements. Damp pages may also stick together, allowing more than one sheet to go through the printer (multiple page feed). This will cause blank pages to appear between printed pages. Fuzzy and poor quality output will occur because the water in the paper will interfere with the transfer of the toner.

A dirty developer unit or a partially empty toner cartridge can cause white lines.

Loose toner on the printed page is the result of the fuser not heating to the proper temperature.

When the photoreceptor drum wears, it holds less of a charge and attracts less toner, which in turn causes lighter (gray) print.
Objective: Printers and Scanners