HP Officejet Pro K5400 Printer - Manual (Page 60)

Check the cable connections
•
Make sure both ends of the network/USB cable are secure.
• If the device is connected to a network, check the following:
•
Check the Link light on the back of the device.
• Make sure you are not using a phone cord to connect the device.
• The network hub, switch, or router is turned on and working properly.
Check the device setup for a network environment
Ensure the correct device driver and printer driver port are being used. For more
information about network connections, see
Configure the device (Windows) ,
Configure the device (Mac OS) , or the documentation provided by your network
vendors.
Check any personal firewall software installed on the computer
The personal software firewall is a security program that protects a computer from
intrusion. However, the firewall might block communication between the computer and
the device. If there is a problem communicating with the device, try temporarily
disabling the firewall. If the problem persists, the firewall is not the source of the
communication problem. Re-enable the firewall.
If disabling the firewall allows you to communicate with the device, you might want to
assign a static IP address to the device and re-enable the firewall.
Device does not accept printhead
Check the printhead latch
Make sure the printhead latch is properly closed.
Check the printhead
Make sure the printhead is inserted into its correct color-coded slot. For more
information, see
To replace the printheads .
Clean the printhead
Complete the printhead cleaning procedure. For more information, see
Maintain the
printheads .
Turn off the device after removing the printhead
After removing the printhead, turn off the device, wait about 20 seconds, and turn it on
again without the printhead installed. After the device has restarted, reinsert the
printhead.
Device takes a long time to print
Check the system configuration
Make sure the computer meets the minimum system requirements for the device. For
more information, see
System requirements .
Chapter 5
56 Maintain and troubleshoot