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Contents:
- Introduction to printers
- What are printers
- Types of printers
-
Impact printers
-
Solid ink printers
-
Thermal printers
-
Laser printers
- Introduction to scanners
- Flatbed scanners
- Sheetfed scanners
- Handheld scanners
- Printer and scanner interfaces
- Installing printers and scanners
- Printer and scanner problems and troubleshooting
- Tools to troubleshooting printer/scanner problems
- References
6. TOOLS TO TROUBLESHOOT PRINTER/SCANNER PROBLEMS
The basic tools used when
troubleshooting printers or scanners are:
i. Multimeter
Multimeter is used to detect
problems with power supply and also to perform resistance tests and then find
the cause of problem with the device.
ii. Screw driver
Screw driver is a common tool that
every technician uses. There are three types: flat-blade, Phillips and torx.
When picking a screw driver it is important to note that the size of the screw
driver head should match to the head of the screw. Using small o r large
screwdrivers than the head of the screw is useless.
iii. Cleaning solutions
Cleaning solutions are to be used
to remove dirt from the printer which may be the cause for some printer problems
like lines in the output etc. Printers have self-cleaning utility that is
activated through a menu option on the printer itself. It is good to run the
cleaning-utility on the printer every time a toner or ink catridge are replaced.
iv. Extension Magnets
Extension magnet looks like a pen,
has a magnetic tip which can pick up small objects fallen into unreachable area
is one of the useful device for troubleshooting some problems.
v. Test patterns
Printers print test page
containing both colors and patterns based on printer’s capabilities. Test
patterns measure gradients and resolution and letter qualities at various font
sizes.
So test patterns can be run on a
printer if any issues related to print-quality are experienced.
7. References
1. http://www.techexams.net
2. http://www.howstuffworks.com
3. http://www.brainbell.com
4. CompTIA A+ complete study guide
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