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14 Troubleshooting data communication issues
Step by step instructions are provided for you to identify and resolve your issue.
Communication failures between computer and printer
Some symptoms are apparent when there is an issue.
● The front-panel display does not show the Printing message when you have sent an image to the printer.
● Your computer displays an error message when you are trying to print.
● Your computer or printer hangs (stays idle), while communication is taking place.
● Your printed output shows random or inexplicable errors (misplaced lines, partial graphics etc.)
● Ensure that you have selected the correct printer in your application, see Printing on page 33.
● Ensure that the printer works correctly when printing from other applications.
● Remember that very large prints may take some time to receive, process and print.
● If the printer is connected to a network, check the printer connectivity status: the printer should have an IP
address and it should match the IP address specied in the printing computer. If the addresses do not
match, then congure it correctly; if the issue persists, check your network conguration or try connecting
to the printer by USB cable.
● Try another interface cable.
● If the printer is connected by USB cable, try disconnecting and reconnecting the USB cable. Also try using a
dierent USB port on the computer.
● If the printer is connected to a wireless network, you can request a diagnostic report from the front panel:
tap
, then Settings > Print Wireless Network Test. Alternatively, try moving the printer closer to the
wireless router, or try connecting the printer by wired network or USB cable.
● Increase the lease time of your DHCP server device.
● Set a xed IP address for your printer that will not be changed by DHCP.
● Congure the printer and driver to refer to the hostname instead of the numeric IP address.
Fixed IP
Set a xed IP address for the printer from the front panel.
1. Go to the front panel and tap or .
2. At the bottom of the screen, tap Settings > Advanced setup > IP settings > OK > Manual, and enter the IP
address, the subnet mask, and the gateway (those settings should be provided by your network
administrator).
Hostname
You can use the hostname instead of the numeric IP address.
ENWW Communication failures between computer and printer 89
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