Brother International MFC 8500 Service Manual - Page 137
Refer to V, Refer to Appendix 2. - change drum soon
UPC - 012502603832
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Messages on the LCD (In the 1st row) WARMING UP (In the 2nd row) WAIT FOR A WHILE (In the 1st row) MACHINE ERROR XX (In the 2nd row) Unplug machine, then call Brother. CHANGE DRUM SOON PLS OPEN COVER (In the 1st row) PAPER JAM (In the 2nd row) Open cover, then remove jammed paper. (In the 1st row) PLS CLEAN DRUM (In the 2nd row) Clean corona wire of drum unit. Probable Cause The controller, which monitors the internal resistance of the incasing temperature sensor (thermistor) and heater thermistor, has detected that the temperature inside the equipment or the heater temperature has not reached the specified level. If either temperature does not reach the preset level, recording is not possible. "XX" indicates an error code. Refer to [ 2 ] on pages VI-5 and VI-6. 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.) To display the relating detailed error code, use maintenancemode function code 82. (Refer to Chapter V, Section 3.14.) If this message appears, open and close the front cover. The message may disappear if opening/closing the front cover removes the error. If the error persists, the "MACHINE ERROR XX" will appear. 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 front cover 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. The toner sensor detects abnormal discharge that could be caused by the dirtied corona wire of the drum unit. VI - 3