Oki 87 - Manual (Page 119)

Problem Solving 107
PRINTER ALARM 4 :TEL
REFER TO USER GUIDE
Printer alarm: Open and close the cover. If this does not clear the
message, turn off the facsimile machine and contact the nearest
authorized OKIFAX dealer for service.
Open and close the cover. If this does not clear these messages,
unplug your MFP machine and call for service.
Important Note: When you unplug your MFP machine, any received
faxes or delayed transmission faxes in memory are erased.
CONFIRM PAPER SIZE
Wrong paper size: The paper in your MFP machine is not the size
called for by your application software. Check your software printing
settings and the paper in the paper tray.
MEMORY ERROR :FAX
Memory error (except programming area): If this message appears
when you turn on your MFP machine, the registration information of
One-touch function etc, may be deleted. Confirm the contents you
have registered.