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AL-2041  SIMULATION, TROUBLE CODES  10 - 21

51

02

Resist quantity adjustment

[Function]
Used to adjust the contact pressure of the main unit resist roller and the SPF resist roller onto
paper. When this simulation is executed, the current set value is displayed.

The adjustment modes can be selected by pressing [Exposure mode selector] key.

Enter the adjustment value with [ ] [ ] key and press [START] key to save the set value and
make a copy.

[Operation]
The operation is similar to simulation 46-01.

53

08

SPF scan position automatic 
adjustment 
(excluding AL-2021)

[Function]
Place a A4 paper (white chart) so that it covers the SPF scan glass and the OC glass together,
and close the SPF.

When this simulation is executed, the current adjustment value is displayed as the initial display.

* Default is 50. Adjustment range is 1 – 99. Adjustment unit 1 = about 0.127mm

In case of AUTO, press [START] key, and the mirror unit scans from the home position to the
SPF scan position with the adjustment value displayed. The SPF glass cover edge position is
calculated from the difference between the SPF glass cover edge and the OC side document
glass CCD output level. If the adjustment is normal, the adjusted value is displayed. If abnor-
mal, the JAM LED lights up with the current set value displayed.

During the JAM LED is lighted, when [START] key is pressed again, execution is performed
again.

[Operation]
The operation is similar to simulation 46-01. (In MANUAL)

61

03

Polygon motor check 
(HSYNC output check)

[Function]
When [START] key is pressed, HSYNC is performed and the polygon motor is rotated for 30sec.

At that time, the ZOOM lamp is lighted for 100msec every time when HSYNC is detected.

The sub code display is lighted. (After completion of execution, it blinks.)

63

01

Shading check

[Function]
Used to display the detection level of white plate for shading.

When [START] key is pressed, the mirror base unit moves to the white plate for shading and the
copy lamp is lighted.

When the light quantity is stabilized, revision is made for every second, and the level of one
pixel at the center of CCD which is not corrected is detected and the value is displayed in deci-
mal values on the LED.

Main 
code

Sub 

code

Contents

Details of function/operation

 Mode

Display lamp

Default

Main cassette paper feed

AE mode lamp
Main cassette lamp

50

Manual paper feed

AE mode lamp
Manual paper feed lamp

50

Duplex back surface

TEXT mode lamp
PHOTO mode lamp
Main cassette lamp

50

Mode

Display lamp (AL-2031/2041)

Default

SPF scan position auto 
adjustment

AE mode lamp

50

SPF scan position manual 
adjustment

TEXT mode lamp

50

AL-2041  SIMULATION, TROUBLE CODES  10 - 22

63

02

Black level automatic 
correction

[Function]
Used to acquire the black level target value used for the black level adjustment of white balance.

When this simulation is executed, the current correction value is displayed in 3 digits of 12bit
hexadecimal number.

Place the gray gradation chart (UKOG-0162FCZZ) used as the correction document so that the
density 10 (black side) comes on the left side and that the chart is upside down at the center of
the plate left center.

When [START] key is pressed, the mirror base unit scans the chart and calculates the correc-
tion value.

After completion of correction, the corrected value is displayed on the LED/display.
∗ Default: 0
∗ If the value is set to the default, operation is made with 0x60.
∗ Incase of an error, the JAM lamp lights up.
∗ If C key is pressed during canceling, the machine goes into the sub code entry standby mode 

after canceling.

12

Light quantity stabilization 
wait time setting

[Function]
Used to set the wait time before entering the light quantity level stable evaluation process in the
light quantity stable process of white balance. (Note: The light quantity stable level in the previ-
ous light quantity stable state is used as the target. When the light quantity level reaches the
target during the wait time, the set time of this simulation is ignored and the operation enters the
stable evaluation process.)

When this simulation is executed, the currently set value is displayed.
Enter the adjustment value with [ ] [ ] key

 

and press [START] key. The entered value is stored 

and the machine goes into the sub code entry standby mode.
Setting range: 0 – 99 (Complying with the light quantity stable wait time of 0 – 99sec.)

Default: 15 (15sec)

[Operation]
The operation is similar to simulation 9-04.

13

Light quantity stabilization 
band setting

[Function]
When the difference between the maximum and the minimum values of the light quantity level
sampled for 3.2sec in the cycle of 100msec in the white balance light quantity stable process is
within the range set with this simulation, it is judged as the light quantity is stable. (Note: The
magnification ratio of the AFE gain setting is automatically reflected on the stable width.)

When this simulation is executed, the currently set value is displayed.
Enter the adjustment value with [ ] [ ] key and press [START] key. The entered value is stored
and the machine goes into the sub code entry standby mode.

Setting range: 1 – 99 (Light quantity stable width: Complying with 1 – 99 in 4095 gradations.)

Default: 16

[Operation]
The operation is similar to simulation 9-04.

Main 
code

Sub 

code

Contents

Details of function/operation

Chart back surface

 

10

AL-2041  SIMULATION, TROUBLE CODES  10 - 23

64

01

Self print

[Function]
The status of the optical section is ignored and printing of one page is made. Also when the
print command is received from the host, printing is made.

When this simulation 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 [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 simulation 26-02.

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

AL-2041  SIMULATION, TROUBLE CODES  10 - 24

Main 
code

Sub 

code

Details of trouble

E7

01

Image data error

06

Image data decode error

10

Shading trouble (Black correction)

11

Shading trouble (White correction)

16

Abnormal laser output

20

LSU trouble

F2

64

Toner supply abnormality

70

Improper cartridge

74

Toner cartridge CRUM error

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

31

Exhaust fan motor lock detection trouble

L6

10

Polygon motor lock detection

U2

00

EEPROM read/write error (Serial communication 
error)

11

Counter check sum error (EEPROM)

Main 
code

Sub 

code

Details of trouble

E7

01

Content Image data error
Detail

Communication error with the E-sort module
MCU PWB trouble
ASIC trouble

Check 
and 
remedy

Check if it occurs again when the power is 
turned OFF and ON. If so, replace the PWB.

06

Content Image data decode error

Detail

Image expansion error

Cause

MCU PWB abnormality
USB cable trouble

Check 
and 
remedy

Replace the MCU PWB.
Replace the USB cable.

10

Content Shading trouble (Black correction)
Detail

The CCD black scan level is abnormal when 
the shading.

Cause

Improper connection of the CCD unit flat 
cable
CCD unit abnormality
MCU PWB abnormality

Check 
and 
remedy

Check connection of the CCD unit flat cable.
Check the CCD unit.

E7

11

Content Shading trouble (White correction)
Detail

The CCD white scan level is abnormal when 
the shading.

Cause

Improper connection of the CCD unit flat 
cable
Dirt on the mirror, the lens, and the reference 
white plate
Copy lamp lighting abnormality
CCD unit abnormality
MCU PWB abnormality
(When occurred in the SPF scan position.)
Improper installation of the mirror unit

Check 
and 
remedy

Clean the mirror, lens, and the reference 
white plate.
Check the light quantity and lighting status of 
the copy lamp (SIM 05-03).
Check the MCU PWB.

16

Content Abnormal laser output

Detail

When the laser output is stopped, HSYNC is 
detected.

Cause

Laser abnormality
MCU PWB abnormality.

Check 
and 
remedy

Check the laser emitting diode operation.
Replace the MCU PWB.

20

Content LSU trouble

Detail

The BD signal from the LSU cannot be 
detected in a certain cycle. (Always OFF or 
always ON)

Cause

LSU connector or LSU harness defect or 
disconnection
Polygon motor rotation abnormality
Laser beams are not generated.
MCU PWB abnormality.

Check 
and 
remedy

Check connection of the LSU connector.
Execute SIM 61-03 to check the LSU 
operations.
Check that the polygon motor rotates 
normally.
Check that the laser emitting diode 
generates laser beams.
Replace the LSU unit.
Replace the MCU PWB.

F2

64

Content Toner supply abnormality

Detail

The maximum toner supply time is greatly 
exceeded.

Cause

CRUM chip trouble
Improper developing unit

Check 
and 
remedy

Replace the CRUM chip.
Replace the developing unit.

70

Content Improper cartridge

Detail

The destination of the main unit differs from 
that of the CRUM.
When the life cycle information is other than 
Not Used (FFh).

Cause

CRUM chip trouble
Improper developing unit

Check 
and 
remedy

Replace the CRUM chip.
Replace the developing unit.

Main 
code

Sub 

code

Details of trouble