Brother FAX-170 Service Manual page 143

Messages on the LCD
DOCUMENT JAM
CUTTER JAM
CLEAN UP SCANNER
SCANNER ERROR
PRINTER FAULT
MACHINE ERROR XX
If only an alarm beep is heard without any message on the LCD when the equipment is pow-
ered up, the ROM or RAM will be defective.
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.)
The upper rotary blade of the automatic cutter failed to return to
the home position within the specified time after cutting the
recording paper.
In the scanning compensation data list printed by the mainte-
nance-mode function No. 05, less than fifty percent of the white
level data is faulty.
In the scanning compensation data list printed by the mainte-
nance-mode function No. 05, fifty percent or more of the white
level data is faulty.
The thermistor in the recording head caused a heat error.
"XX" indicates an error code. Refer to Section [ 2 ] on the next
page.
VI – 2
Probable Cause