HP (Hewlett-Packard) 3020 User Manual

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Try these tips when the device does not print any pages.
Does a message appear on your computer screen?
See 
 for more information.
Is media being pulled into the device correctly?
See 
Are media jams present?
See 
 for more information.
Is the parallel or USB Device Cable (A/B) working, and is it
connected correctly?
The parallel or USB Device Cable (A/B) might be defective. Try the following remedies:
Disconnect the parallel or USB Device Cable (A/B) at both ends and reconnect it.
Try printing a job that has printed in the past.
Try using a different IEEE 1284-B-compliant parallel cable or USB Device Cable (A/B).
See 
.
Contact the manufacturer of your computer about changing parallel port settings to an
extended capabilities port (ECP) mode.
Are other devices running on your computer?
The device might not share a parallel port. If you have an external hard drive or network
switchbox that is connected to the same port as the device, the other device might be
interfering. To connect and use the device, you must disconnect the other device or you
must use two parallel ports on the computer.
You might need to add another interface card. Hewlett-Packard strongly recommends an
ECP parallel interface card.
ENWW
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