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 _ _

"_ _"

indicates an error code. Refer to Section [ 2 ] on the

or

following pages.

MACHINE ERR _ _ _ _

 

 

 

 

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.

VI - 2

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Brother MFC-970MC, FAX-931, FAX-921 service manual Printer Fault