Error Indication; Equipment Errors - Brother MFC990CW Service Manual

4.1

ERROR INDICATION

To help the user or the service personnel promptly locate the cause of a problem (if any), the
machine incorporates the self-diagnostic functions which display error messages for equipment
errors.

4.1.1 Equipment Errors

If an equipment error occurs in the machine, the machine emits an audible alarm (five short
beeps twice) (MFC only) and shows the error message on the LCD. If an equipment error
occurs in the cordless handset(s), the cordless handset shows the error message on the LCD. For
the error messages, see [ 1 ] below.
To display detailed error information, use Function code 82 described in
9.1.4.31 (that is, switch the machine to the maintenance mode and then access Function code
82). Following the MACHINE ERROR, one of the error codes listed in [ 2 ] will appear on the
LCD.
4-1
Chapter 9, Section
Confidential