Brother MFC6800 Service Manual page 129

Messages on the LCD
CHECK ORIGINAL
Remove original, and then
press STOP KEY.
(See NOTE below.)
or
CHECK DOCUMENT
Remove document, then
press STOP KEY.
CHECK DRUM UNIT
Open cover, then reinstall
drum unit.
CHECK PAPER
Reload paper by using lever,
then press FAX START.
CHECK PAPER
Reload paper by using lever,
then press COPY.
(These messages apply to models
w/o fax.)
CHECK PAPER SIZE
Reload correct paper, then
press FAX START.
CHECK PAPER SIZE
Reload correct paper, then
press COPY.
(These messages apply to models
w/o fax.)
CLEAN UP SCANNER
Document loading error
(1) The document rear sensor detects no leading edge of a
document within 10 seconds from the start of document
loading operation.
(The document rear sensor stays OFF even after the
document has been fed when the document front sensor was
ON.)
(2) The loaded document is too short.
(Since the document is shorter than the distance between the
document front and rear sensors, the document front sensor
is turned OFF before the document rear sensor is turned
ON.)
No drum unit is loaded.
Even after paper pick-up operation, the registration sensor does
not detect paper.
The registration sensor detects that paper shorter than the
specified length has been fed.
(This message appears only when a received message is
printed.)
In the scanning compensation data list printed by the mainte-
nance-mode function code 05, less than fifty percent of the
white level data is faulty.
(This message may appear only in the maintenance mode.)
NOTE: This message appears in North American models.
6 -2
Probable Cause