55 unsupported option in slot <x, 56 parallel port <x> disabled, 56 serial port <x> disabled – Dell 5535dn Mono Laser MFP User Manual
Page 242: 56 standard parallel port disabled, 56 standard usb port disabled

55 Unsupported option in slot <x>
<x> is a slot on the printer system board.
Try one or more of the following:
1
Turn the printer power off.
2
Unplug the power cord from the wall outlet.
3
Remove the unsupported option card from the printer system board.
4
Connect the power cord to a properly grounded outlet.
5
Turn the printer power back on.
56 Parallel port <x> disabled
<x> is the number of the parallel port.
Try one or more of the following:
•
Touch Continue to clear the message.
The printer discards any data received through the parallel port.
•
Make sure the Parallel Buffer menu item is not set to Disabled.
56 Serial port <x> disabled
<x> is the number of the serial port.
Try one or more of the following:
•
Touch Continue to clear the message.
The printer discards any data received through the serial port.
•
Make sure the Serial Buffer menu item is not set to Disabled.
56 Standard parallel port disabled
Try one or more of the following:
•
Touch Continue to clear the message.
The printer discards any data received through the parallel port.
•
Make sure the Parallel Buffer menu item is not set to Disabled.
56 Standard USB port disabled
Try one or more of the following:
•
Touch Continue to clear the message.
The printer discards any data received through the USB port.
•
Make sure the USB Buffer menu item is not set to Disabled.
Understanding printer messages
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