Error Indication; Machine Errors; Error Messages On The Lcd - Brother MFC6800 Service Manual

6.1 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 machine
errors and communications errors.
For the communications errors, the machine also prints out the transmission verification report and
the communications list.

6.1.1 Machine Errors

If a machine error occurs, the machine emits an audible alarm (continuous beeping) for
approximately 4 seconds and shows the error message on the LCD. For the error messages, see
[ 1 ] below.
To display detailed error information, use the maintenance-mode function code 82 described in
CHAPTER 5, Subsection 5.3.13 (that is, make the machine enter the maintenance mode and then
press the 8 and 2 keys). Following the MACHINE ERROR, one of the error codes listed in [ 2 ]
will appear on the LCD.
[ 1 ]

Error messages on the LCD

Messages on the LCD
CHANGE DRUM SOON
CHECK ORIGINAL
Remove original, and then
press STOP KEY.
or
CHECK DOCUMENT
Remove document, then
press STOP KEY.
The service life of the drum unit will expire soon. This message
appears for one minute.
(You can turn this message indication on or off by the
maintenance-mode function code 10, WSW31, selector 8. Refer
to Appendix 2.)
(1) The document length exceeds the limitation (400 or 90 cm)
(See NOTE below.)
(2) The document rear sensor detects no trailing edge of a
Document jam
registered by firmware switch WSW16. (Refer to Appendix
2.)
(Both the document front and rear sensors stay ON after the
document has been fed by the registered length.)
document after the document has been fed by 400 cm.
(The document rear sensor stays ON even after the
document has been fed when the document front and rear
sensors were OFF and ON, respectively.)
NOTE: This message appears in North American models.
6 -1
Probable Cause