Highlighted display
Normal display
e.g.
e.g.
Items to check
23LA/
23LM/
28LM
23HA
/
28HA
Model
Digital
key
Button
Contents
A
Power ON
Power OFF
Y
Y
B
Normal
Abnormal
Y
Y
C
Abnormal rotation
Normal rotation
Y
Y
D
Abnormal rotation
Normal rotation
Y
Y
E
Connected
Not connected
Y
Y
F
Opened
Closed
-
Y
G
-
-
-
-
H
-
-
-
-
A
-
-
-
-
B
-
-
-
-
C
-
-
-
-
D
Original present
No original
-
Y
E
Connected
Not connected
-
Y
F
Opened
Closed
-
-
G
-
-
-
-
H
-
-
-
-
A
Original present
No original
Y
Y
B
Paper present
No paper
Y
Y
C
Cover opened
Cover closed
Y
Y
D
RADF opened
RADF closed
Y
Y
E
Original present
No original
Y
Y
F
-
-
-
-
G
Original present
No original
Y
Y
H
-
-
-
-
A
-
-
-
-
B
-
-
-
-
C
-
-
-
-
D
-
-
-
-
E
-
-
-
-
F
-
-
-
-
G
-
-
-
-
H
-
-
-
-
A
Paper present
No paper
Y
Y
B
Paper present
No paper
Y
Y
C
-
-
-
-
D
Cover opened
Cover closed
Y
Y
E
Cover opened
Cover closed
Y
Y
F
-
-
-
-
G
Acceptable
Not acceptable
Y
Y
H
-
-
-
-
A
ON
OFF
Y
Y
B
ON
OFF
Y
Y
C
ON
OFF
Y
Y
D
ON
OFF
Y
Y
E
ON
OFF
Y
Y
F
ON
OFF
Y
Y
G
ON
OFF
Y
Y
H
ON
OFF
Y
Y
Notes:
・
Be sure to check the [8] A, where RADF is closed.
・
Be sure to check the [8] B, where cover is closed.
・
How to enter the alphabet characters such as MC=A or MC=B in the Test Mode 03:
To enter "A", press the [*] button and then the [0] button. To enter "B", press the [*] button and then the [1] button.
*1
- Be sure to install the USB media to the equipment and check if the device can be used with this code.
- Be sure to turn OFF the write protection (the function to prevent data from erasure by the accidental recording or
deleting) of the USB media before performing the check, otherwise this code cannot be used.
- It may take some time (2 sec. to 10 sec.) before this check is completed depending on the USB media.
Tray volume sensor(bit2)
Tray volume sensor(bit1)
Tray volume sensor(bit0)
Tray volume sensor(bit3)
Tray volume sensor(bit7)
Tray volume sensor(bit5)
Tray volume sensor(bit4)
RADF opening/closing sensor
Tray volume sensor(bit6)
-
-
-
-
-
RADF read sensor
RADF exit sensor
-
-
RADF empty sensor
RADF cover opening/closing sensor
Platen SW detection
-
-
RADF tray sensor
-
-
-
APS sensor R
APS sensor C (NAD only)
[B]
-
-
Main motor rotation status
24 V power supply
High-voltage power supply abnormality
Polygonal motor rotation status
RADF connection
Platen SW detection
-
-
-
[9/0]
[A]
Registration sensor
Exit sensor
-
Toner supply cover opening/closing switch
PFU side cover opening/closing switch
-
Judgement for acceptable USB media *1
-
[7]
[8]
[6]
e-STUDIO2303A/2303AM/2803AM/2309A/2809A
SELF-DIAGNOSIS CODE (03/04/05/08 CODE)
14-2-2
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