Service manual

AL-1651CS TEST COMMAND, TROUBLE CODES 10 - 27
5. Trouble codes
A. Trouble codes list B. Details of trouble codes
64 01 Self print (1by2 mode)
(SELF PRT.)
[Function]
The status of the optical section is ignored and printing of one page is made. Also when the print com-
mand is received from the host, printing is made.
When this test command is executed, warm-up is performed and the ready lamp is lighted. (Since,
however, the scanner is disabled, initializing is not made.)
Enter the code number and press [ENTER/START] key to start paper feed from the selected cassette
and print in the selected pattern.
∗ For 4 – 99, flip.
[Operation]
The operation is similar to test command 21-01.
Main
code
Sub
code
Contents Details of function/operation
Code number Pattern Display item
0 1by2 1 BY 2
1 Grid pattern CHECK
2 White paper WHITE
3 Black background BLACK
Main
code
Sub
code
Details of trouble
E1 00 IMC communication trouble
10 IMC trouble
13 IMC flash ROM error
16 IMC DIMM memory read/write check error
81 IMC communication interface error (parity)
82 IMC communication interface error (Overrun)
84 IMC communication interface error (Framing)
E7 02 LSU trouble
10 Shading trouble (Black correction)
11 Shading trouble (White correction)
16 Abnormal laser output
F5 02 Copy lamp lighting abnormality
H2 00 Thermistor open
H3 00 Heat roller high temperature detection
H4 00 Heat roller low temperature detection
L1 00 Feeding is not completed within the specified time after
starting feeding. (The scan head locking switch is locked)
L3 00 Scanner return trouble
L4 01 Main motor lock detection
L6 10 Polygon motor lock detection
U2 04 EEPROM read/write error (Serial communication error)
11 Counter check sum error (EEPROM)
U9 99 Operation panel language error
Main
code
Sub
code
Details of trouble
E1 00 Content IMC communication trouble
Detail An abnormality occurs in communication
between the CPU and the IMC.
Cause IMC – CPU signal line abnormality
IMC Memory defect/data abnormality
Check
and
remedy
Replace the MCU PWB with new one.
10 Content IMC trouble
Detail An abnormality occurs in the IMC.
Cause USB chip error/CODEC error on the IMC.
Check
and
remedy
Replace the MCU PWB with a new one.
13 Content IMC flash ROM error
Detail An abnormality occurs in the IMC flash ROM.
Cause IMC abnormality
Check
and
remedy
Replace the MCU PWB with a new one.
If downloading of the program is abnormally
terminated, it may cause an error. Download
the program again to avoid this.
16 Content IMC DIMM memory read/write check error
Detail An installation error occurs in the IMC memory
module.
An error occurs during access to the IMC
memory.
Cause Improper installation of the IMC memory
module.
IMC memory module abnormality
IMC memory contact abnormality
IMC abnormality.
Check
and
remedy
Check installation of the memory module.
Replace the memory module.
Replace the MCU PWB with a new one.
81 Content IMC communication interface error (parity)
Detail A parity error occurs in communication between
the CPU and the IMC.
Cause IMC memory defect/data abnormality
Check
and
remedy
Check the memory of the IMC.
Replace the MCU PWB with new one.