HP DesignJet T730

Communication failures between computer and printer
Some symptoms are:
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The front-panel display does not show the Printing message when you have sent an image to the
printer.
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Your computer displays an error message when you are trying to print.
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Your computer or printer hangs (stays idle), while communication is taking place.
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Your printed output shows random or inexplicable errors (misplaced lines, partial graphics etc.)
To solve a communication problem:
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Ensure that you have selected the correct printer in your application, see Printing on page 45.
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Ensure that the printer works correctly when printing from other applications.
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Remember that very large prints may take some time to receive, process and print.
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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.
●
Try another interface cable.
●
If the printer is connected to a wireless network, you can request a diagnostic report from the front
panel: swipe down the dashboard and touch , then touch Print details. Alternatively, try moving the
printer closer to the wireless router, or try connecting the printer by wired network.
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.
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Set a xed IP address for your printer that will not be changed by DHCP.
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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, swipe down the dashboard and touch or .
2. At the bottom of the screen, touch Settings > Advanced setup > IP settings, 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, swipe down the dashboard and take note of the IP address and the hostname
(HPXXXXXX format).
2. If your computer is running Windows, go to Control Panel > Printers, right-click the printer and select
Properties > Ports > Congure Port, and in the Printer name or IP address eld enter the hostname.
Wired network issues
If you are unable to install the HP software provided with the printer, check that:
180 Chapter 20 Troubleshooting data communication issues ENWW