IBM 1220 Change <x>, Change <x> Invalid Refill, Check <device> Connection

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Change <x>
What this message means:
The printer is requesting that a different type of paper be loaded in one of the inpu t sources.
What you can do:
Change the paper type in the specified source.
See also:
Loading the trays; Setup Guide
Change <x> Invalid Refill
What this message means:
The printer has detected a refilled Prebate cartridge.
What you can do:
Remove the indicated print cartridge and install a new one.
See also:
Replacing print cartridges
Check <device>
Connection
What this message means:
The specified device is either not fully connected to the printer or is experien cing a hardware
failure.
What you can do:
•Reestablish communication by removing the specified device and reattaching it to the pr inter.
•Press Go to clear the message and continue printing.
•In the case of a hardware failure, turn the printer off and back on. If the error recurs, turn the
printer off, remove the specified device, and call for service.