HP C4381-90100 Manual Do Utilizador

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Turn off the computer’s power, wait 20 seconds, then turn it on again. 
Unplug the CD-Writer Plus drive and plug it in again. (This is called 
cycling power.)

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Disconnect all the cables, look for and straighten any pins, and then 
reconnect the cables. Sometimes just reconnecting a cable aligns it 
correctly or adjusts the pin connections, fixing a faulty connection.

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Check the list of known compatibility problems (on page 3-7) and in 
the Readme file.

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Make sure that there is no switch box anywhere in the CD-Writer Plus 
drive’s cabling configuration.

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If you have a printer connected to the CD-Writer Plus drive, check to 
see if your computer can detect the CD-Writer Plus drive when the 
printer is disconnected.

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Check to make sure that your parallel port is truly configured as either 
EPP or ECP. Check the manual that came with your computer to find 
out how.

In Windows 95, to find out if there is a conflict:
- Right-click on the My Computer icon
- Select Properties 
- Select the Device Manager tab:
  Under the heading SCSI Controllers, find Shuttle EPAT
  External ATAPI Adapter, and select Properties
    AND
  Under the heading Ports,  find Printer Port, and select
  Properties

  If you see a yellow exclamation mark to the left of this line,
  you do have a conflict. Determine which other device is
  using the same settings as your parallel port and change
  the settings on the other device.

If you discover you do have a conflict, to find out which device is in 
conflict:

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In Windows 95, right-click on the My Computer icon, select 
Properties, select the Device Manager tab, double-click on the 
computer icon to see a list of which device is using each resource 
setting on your computer.