User Manual

Communication failures between computer and printer
Some symptoms are:
● 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.)
To solve a communication problem:
● Ensure that you have selected the correct printer in your application, see Printing on page 38.
● 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 specied in the printing computer. If the addresses do not
match, then congure it correctly; if the issue persists, check your network conguration 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
dierent 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.
When a network device automatically congures itself by receiving an IP address from the DHCP service, this IP
address may change from the last time the device is powered o to the next time it is powered on, which may
lead to the device being shown as "oine" when driver port settings are congured with the original IP address.
There are at least three possible ways to avoid this:
● Increase the lease time of your DHCP server device.
● Set a xed IP address for your printer that will not be changed by DHCP.
● Congure the printer and driver to refer to the hostname instead of the numeric IP address.
To set a xed IP address for the printer:
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).
To use the hostname instead of the numeric IP address:
1. Go to the front panel and tap or .
2. Take a note of the IP address and the hostname (HPXXXXXX format).
3. If your computer is running Windows, go to Control Panel > Printers, right-click the printer and click
Properties > Ports > Congure Port, and in the Printer name or IP address eld enter the hostname.
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