Power and connection messages, Communication test failed – HP Photosmart C6340 All-in-One Printer User Manual
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Cause: The print setting chosen for the print job did not match the paper loaded in
the product.
Power and connection messages
The following is a list of power- and connection-related error messages:
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Product not found
Solution: If the product is not properly connected to the computer, communication
errors can occur. Make sure the USB cable is securely connected to the product and
the computer, as shown below. If the product is connected to the computer through
a wired, wireless, or bluetooth connection, make sure that the respective connections
are turned on and active, and the product is turned on.
Cause: The USB cable was not plugged in properly.
Communication test failed
Try the following solutions to resolve the issue. Solutions are listed in order, with the most
likely solution first. If the first solution does not solve the problem, continue trying the
remaining solutions until the issue is resolved.
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Solution 1: Turn on the product
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Solution 2: Connect the product to the computer
Solution 1: Turn on the product
Solution: Look at the display on the product. If the display is blank and the On
button is not lit, the product is turned off. Make sure the power cord is firmly connected
Errors
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