HP Deskjet 6122 Color Inkjet Printer - Manual (Page 99)

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Click here .
—or—
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Click Start > Programs > Hewlett-Packard > [hp deskjet] > uninstall
software , then follow the onscreen instructions.
the error message "there was an error writing to <name of USB port>" appears
The printer may not be receiving correct data from another USB device or the hub.
Connect the printer directly to the USB port on the computer.
there are conflicting USB cable connections
A printing conflict may arise when the printer and several USB devices are attached to a
hub. There are two methods for resolving the conflict:
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Attach the printer's USB cable directly to the computer.
—or—
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If the printer is attached to a hub, do not use other USB devices attached to
the hub while printing.
USB problems
the error message "there was an error writing to LPT1" appears
The USB cable may not have been attached before installing the software. Uninstall ,
then reinstall, the software.
To uninstall the software: