Brother FAX-921 - Manual (Page 153)

VI - 2
Messages on the LCD Probable Cause
DOCUMENT JAM n 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.)
CLEAN UP SCANNER In the scanning compensation data list printed by the
maintenance-mode function code 05, less than fifty percent of the
white level data is faulty.
(This message may appear only in the maintenance mode.)
SCANNER ERROR In the scanning compensation data list printed by the
maintenance-mode function code 05, fifty percent or more of the
white level data is faulty.
(This message may appear only in the maintenance mode.)
PRINTER FAULT The thermistor in the recording head caused a heat error.
CHANGE CARTRIDGE The ribbon sensor detects that no ink ribbon is loaded.
MACHINE ERROR _ _
or
MACHINE ERR _ _ _ _ "_ _" indicates an error code. Refer to Section [ 2 ] on the
following pages.
PC BUSY OR FAIL After connected with the host computer, the equipment has
received no response from the computer. (A communications
error has occurred.)
If only an alarm beep is heard without any message on the LCD when the equipment is powered
up, the ROM or RAM will be defective.