Brother MFC6800 Service Manual page 130

Messages on the LCD
COOLING DOWN
WAIT FOR A WHILE
COVER OPEN
PLS CLOSE COVER
DOC. COVER OPEN
Remove original and close
cover.
MACHINE ERROR XX
Unplug machine, then call
Brother.
PAPER JAM
Open cover, then remove
jammed paper.
PLS OPEN COVER
The controller, which monitors the internal resistance of toner
thermistor, has detected that the toner temperature exceeded the
specified level. If temperature exceeds the preset level,
recording is no longer possible.
If the toner temperature drops, the machine will be
automatically recovered from the error state.
The scanner open sensor detects that the scanner unit is not
closed.
The document tray open sensor detects that the document tray is
not closed when the ADF is feeding or ejecting a document(s).
"XX" indicates an error code. Refer to [ 2 ] on the following
pages.
Paper jam
(1) The registration sensor detects no paper within the
specified time length after the start of paper pulling-in.
(2) The registration sensor has been ON for less than the
specified time length (paper of approx. 3.15" long) or for
more than the specified time length (paper of approx. 16"
long).
(3) When the machine is switched on or the scanner unit is
opened and then closed, the registration sensor or paper
ejection sensor is ON.
(4) The paper ejection sensor sticks to ON.
(5) The paper ejection sensor does not come ON within the
specified time length after the registration sensor has come
ON.
(6) The paper ejection sensor is kept ON after the specified
time length although the registration sensor has come ON.
To display the relating detailed error code, use maintenance-
mode function code 82. (Refer to CHAPTER 5, Subsection
5.3.13.)
If this message appears, open and close the scanner unit. The
message may disappear if opening/closing the scanner unit
removes the error. If the error persists, the "MACHINE ERROR
XX" will appear.
6 -3
Probable Cause