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           Inkjet printers - 1
• Supposedly, there is a second method of
  getting ink out of the nozzle.
• The first is to use a thermistor (or resistor)
  to heat up the ink to boiling temperature
  and thus forcing it out the nozzle.
• The second method uses pizeoelectrics to
  shake the ink out of the nozzle. Not sure
  who uses this method.
          Inkjet Printers - 2
• Ink clogs in the nozzle area is the major
  failing of inkjets.
• Use them often, the longer they sit, the
  worse the output
• Newer inkjets will go through a (short)
  cleaning cycle each time they start up.
• Most inkjet software includes a Utilities
  section that contains cleaning and
  alignment functions.
            Laser Printers
• Toner cartridges have a (shipping)
  protective tape covering between the toner
  and drum.
• If you forget to remove the tape, you will
  get blank pages from the printer.
• The wisdom is that you should “calibrate” the
  battery every so often – maybe once a month.
• Charge the battery, disconnect the AC line, boot
  in Safe Mode and set the system to Always On.
• Clock how long the laptop runs before it shuts
  itself off due to low power.
• Over time, this run time will decrease until it is
  time to replace the battery.
• POST checks out the basic hardware each
  time the system boots.
• If given a choice of options, the “correct”
  answer is: CPU, Memory and Video card.
• Selecting keyboard is incorrect; I guess
  because POST only looks for one and
  does not check keys for proper
          Back to Windows
• Login screen. You could get away with
  “Cancel” in Win98, not with 2000 or XP
• Most systems don’t have a password on
  the Administrator account; often you can
  start up (in Safe Mode) and use that
  account to reset User password.
• There are UNIX boot CDs that will reset
  (blank) the Administrator password. Find
  them on the Internet.
• Windows 2000 puts icons for My
  Computer, My Network Places, My
  Documents, Internet Explorer and Recycle
  Bin on the desktop.
• XP, in contrast, only puts Recycle Bin.
• Use Display Properties to add additional
• Start button, Quick Launch, Running
  Programs and System Tray (with clock)
• Start menu in 2000 is rather one-
  dimensional: just task areas
• Start menu in XP is more two-dimensional:
  Programs and task areas
       General Rules of Clicking
•   Click once (left) on menu item to use it
•   Left-click icon once to select it
•   Left-click icon twice to use it
•   Right-click anything to find Properties
• Programs (.exe files)
  bring along their own
• Windows has a
  collection of icons
• You get Window icon for
  unknown extensions
• Stored in the Registry
             My Computer
• Icon on desktop in 2000; have to add it in
  XP or access it from the Start button
• Displays all the drives on the system (and
  scanners in XP)
• Right-click to get to Properties (and Device
• Last slide.

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