HP FAX-750 Service Manual - Page 153

Pc Busy Or Fail, Clean Up Scanner - ink cartridge

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Messages on the LCD DOCUMENT JAM CLEAN UP SCANNER SCANNER ERROR PRINTER FAULT CHANGE CARTRIDGE MACHINE ERROR _ _ or MACHINE ERR _ _ _ _ PC BUSY OR FAIL Probable Cause 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.) 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.) 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.) The thermistor in the recording head caused a heat error. The ribbon sensor detects that no ink ribbon is loaded. "_ _" indicates an error code. Refer to Section [ 2 ] on the following pages. 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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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.