HP Photosmart D7400 User Guide - Page 114

Troubleshooting, Communication problems over a USB connection - power cable

Page 114 highlights

Troubleshooting 12 Troubleshooting This section contains the following topics: • Troubleshooting tips • Hardware setup troubleshooting • Software installation troubleshooting • Network troubleshooting • Print quality troubleshooting • Print troubleshooting • Memory card and front USB port troubleshooting • Errors Troubleshooting tips This section contains the following topics: • Communication problems over a USB connection • Information on ink cartridges and the print head • Information on paper • Clear paper jams • View the Readme file Communication problems over a USB connection NOTE: For information on network communication problems, see "Network troubleshooting" on page 125. For information on communication problems involving a memory card, PictBridge camera, or storage device, see "Memory card and front USB port troubleshooting" on page 145. If the HP Photosmart and computer are not communicating with each other, try the following: • Look at the display on the HP Photosmart. If the display is blank and the On button is not lit, the HP Photosmart is turned off. Make sure the power cord is firmly connected to the HP Photosmart and plugged into a power outlet. Press the On button to turn on the HP Photosmart. • Check the USB cable. If you are using an older cable, it might not be working properly. Try connecting it to another product to see if the USB cable works. If you experience problems, the USB cable might need to be replaced. Also verify that the cable does not exceed 3 meters (9.8 feet) in length. • Check the connection from the HP Photosmart to your computer. Verify that the USB cable is securely plugged into the USB port on the back of the HP Photosmart. Make Troubleshooting 113

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12
Troubleshooting
This section contains the following topics:
Troubleshooting tips
Hardware setup troubleshooting
Software installation troubleshooting
Network troubleshooting
Print quality troubleshooting
Print troubleshooting
Memory card and front USB port troubleshooting
Errors
Troubleshooting tips
This section contains the following topics:
Communication problems over a USB connection
Information on ink cartridges and the print head
Information on paper
Clear paper jams
View the Readme file
Communication problems over a USB connection
NOTE:
For information on network communication problems, see
Network
troubleshooting” on page 125
. For information on communication problems involving
a memory card, PictBridge camera, or storage device, see
Memory card and front
USB port troubleshooting” on page 145
.
If the HP Photosmart and computer are not communicating with each other, try the
following:
Look at the display on the HP Photosmart. If the display is blank and the
On
button
is not lit, the HP Photosmart is turned off. Make sure the power cord is firmly
connected to the HP Photosmart and plugged into a power outlet. Press the
On
button
to turn on the HP Photosmart.
Check the USB cable. If you are using an older cable, it might not be working properly.
Try connecting it to another product to see if the USB cable works. If you experience
problems, the USB cable might need to be replaced. Also verify that the cable does
not exceed 3 meters (9.8 feet) in length.
Check the connection from the HP Photosmart to your computer. Verify that the USB
cable is securely plugged into the USB port on the back of the HP Photosmart. Make
Troubleshooting
113
Troubleshooting