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Problem-solving checklist
If you are experiencing problems, use the following checklist to identify the cause of the problem:
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Is the device connected to power?
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Is the device on?
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Is the device in the Ready state?
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Are all necessary cables connected?
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Do any messages appear on the control panel?
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Are genuine HP supplies installed?
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Was a recently replaced print cartridge installed correctly, and was the pull tab and/or attached
tape on the cartridge removed?
For additional information about installation and setup, see the getting started guide.
If you cannot find solutions to problems in this guide, go to
www.hp.com/support/ljm4349mfp or contact
your dealer for support.
Factors that affect performance
Several factors affect the time it takes to print a job:
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The use of special paper (such as transparencies, heavy paper, and custom-size paper)
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Device processing and download time
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The complexity and size of graphics
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The speed of the computer you are using
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The USB connection
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The I/O configuration
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The amount of memory installed
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The network operating system and configuration (if applicable)
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Device personality (PCL or PS)
NOTE: Although additional memory can resolve memory problems, improve how the device handles
complex graphics, and improve download times, it will not increase maximum printing speed (ppm).
164 Chapter 11 Problem solving ENWW