Brother HL-1020, HL-820, HL-1040 manual If the error occurs again, the interface hardware may be

	CHAPTER 6 TROUBLESHOOTING
Error	Action
Serial Interface Overrun	Press the panel switch to resume printing.
Error	The interface hardware may be damaged. Consult your
(For HL-1040/1050 Only)	dealer.
Serial Interface Input	Press the panel switch to resume printing.
Buffer Overflow	Check the communication parameters such as the
(For HL-1040/1050 Only)	￿handshake protocols 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 turn off the power switch, wait a few seconds and then turn it on again. If you still have problems, consult your dealer or our authorized service representative.

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