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C7350/7550 User’s Guide: Troubleshooting • 532
USB Problems
Cannot print
• LPT WRITE ERROR is displayed (Windows only).
•
PRNUSBX WRITE ERROR is displayed.
Possible cause Remedy
Interface is disabled.
(Windows only)
In the printer menu settings, enable Parallel or
USB interface.
See “Parallel Menu” on page 100 or
“Parallel Menu” on page 100
(Windows only)
Printer is switched
OFF.
Switch ON.
Printer interface cable
is disconnected.
Reconnect the printer interface cable.
A converter, buffer,
extension cable or
USB hub is being
used.
Test by connecting the printer and computer
directly.
Printer driver output
port is incorrect.
Set correct output port to which the printer
interface cable is connected.
Printer is not selected
in the printer driver.
Select the printer or set to default printer.
Incorrect printer
driver is being used.
Delete this printer driver and install correct
printer driver.