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Why does an understanding of operation help a technician?
So the tech can check what changes were made to the device
What questions could a customer ask a technician to do for them?
Select a printer
Install & configure a printer
What are characteristics that every technician should know before recommending a printer?
What options are considered when looking at reliability?
-(MTBF) mean time between failure
What factors should be considered when looking at total cost of ownership?
List and briefly describe the interfaces that a technician can connect a pc and a printer.
-(scsi)small computer system interface
-firewire (high speed communication
List the 6 steps involved in the LaserJet printing cycle
Before working on any LaserJet printer, what should a technician always do?
Make sure VOLTAGE is properly discharged
Describe an impact printer and list examples
Print heads strike the ink ribbon causing character to be printed
List advantages and disadvantages for impact printers
-cheap consumables -noisy
-continuous-feed paper -low resolution
-carbon copy printing -limited color capability
capability -slow print
Describe the inkjet printer process
spray ink onto a page through tiny holes called nozzles, the ink is sprayed in a pattern on the page
Describe the thermal inkjet nozzle
pulse of electrical current is applied to heating chambers around the nozzles & onto the paper
Describe the piezoelectric inkjet nozzle
crystals are located in the ink reservoir at the back of each nozzle
Describe the thermal printer process
Thermal paper becomes black when heated
*******chemically treated & waxy quality
Describe the dye-sublimation printer process
print head passes over a sheet of cyan, magenta, yellow & clear overcoat (CMYO)
What is available on the manufacturer CD that comes with a purchased printer?
List the steps in the installation process of printers
~connect to computer/ network/ or print server
~Find out if a newer driver is avail.(printer website)
~Download driver(usually zipped or compressed
~Test new printer Driver
What are the two ways to setup a printer?
3-Intergrated into the printer
Why do you not plug a printer into a UPS?
Power surge occurs when printer is turned on
*****damage UPS unit*******
List some common configurations that may be set up on a printer.
What tools are available to optimize performance?
~print spool settings=> cancel/pause print jobs
~Color calibration => adjust settings
~paper orientation=>select landscape or portrait
Describe how a flatbed scanner works and list an example of its use.
Coverts hard copy data or image to electronic image
List advantages of having a handheld scanner, Example of its use
SMALL~drag text in book or material to collect digital image. EX: grocery scanner/
Describe how a drum scanner works and list an example of its use.
spins film around a drum or beam of lights capture the images as it spins
How does a technician install the drivers for a scanner?
using driver software provided by manufacture or website
List some common configurations that may be set up on a scanner.
~color,gray,black & white scanning
~one touch scanning
~quality & resolution choice
What is the definition of preventive maintenance?
maintain components, dusts, particles, by cleaning devices or changing parts
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