Brother HL-630 User Manual page 59

Error Action
Serial Interface
Press the FF/CONT switch to resume printing.
Input Buffer
Check the communication parameters settings such
Overflow
as handshake protocol on both your computer and
printer.
If the error occurs again, the interface hardware
may be damaged, consult your dealer.
Note
If the printer does not operate as you expect it to, it is recommended that
you perform a user reset or factory reset with the switches or unplug the
printer. If you still have problems, consult your dealer or our authorized
service representative.
CHAPTER 6 TROUBLESHOOTING
6–3