DOWNLOAD Sharp AL-2021 Service Manual ↓ Size: 12.48 MB | Pages: 120 in PDF or view online for FREE

Model
AL-2021
Pages
120
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12.48 MB
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PDF
Document
Service Manual
Brand
Device
Copying Equipment / Service Manual
File
al-2021.pdf
Date

Sharp AL-2021 Service Manual ▷ View online

AL-2041  SIMULATION, TROUBLE CODES  10 - 17
48
01
Front/rear (main scanning) 
direction and scan (sub 
scanning) direction 
magnification ratio 
adjustment
[Function]
Used to adjust the magnification ratio in the main scan (front/rear) direction and sub scan direc-
tion.
Enter the adjustment value with [ ] [ ] key. Press [START] key to save the set value and make
a copy. (When the adjustment value is increased by 1, the magnification ratio is increased by
0.1%.)
The adjustment mode can be changed by pressing [Exposure mode selector] key. 
(Adjustment range: 1 – 99, Default: 50)
[Operation]
The operation is similar to simulation 46-01.
05
SPF mode sub scan 
direction magnification ratio 
in copying 
(excluding AL-2021)
[Function]
Used to display the current SPF mode sub scan direction magnification ratio on the LCD/dis-
play.
When [START] key is pressed, the entered data is acquired and saved into the EEPROM, and a
copy is made. (When the set value is increased by 1, the magnification ratio is increased by
0.1%.)
The adjustment mode can be changed by pressing [Exposure mode selector] key. 
(Adjustment range: 1 – 99, Default: 50)
For printing, regardless of the density mode and the density level, 
Density mode = TEXT
Density level = 3
* When there is no document in SPF, copy is inhibited.
[Operation]
The operation is similar to simulation 46-01.
49
01
Flash ROM program writing 
mode
[Function]
When this simulation is executed, "d" is displayed on the display, the machine goes into the pro-
gram writing mode from PC to Flash ROM.
Use the writing tool on the PC and write the program. 
During writing, the display shows as follows:
After completion of download, turn OFF/ON the power to reset.
To enter the download mode, there is a method to use key operations as well as to use a simu-
lation. With the power OFF, press and hold [Exposure mode select] key + [ZOOM DOWN] key,
turn on the power.
Main 
code
Sub 
code
Contents
Details of function/operation
Mode
Display lamp
Default
Main scan direction 
magnification ratio
TEXT mode lamp
50
OC mode sub scan direction 
magnification ratio
PHOTO mode lamp
50
Mode
Display lamp(AL-2031/2041)
Default
Sub scan magnification ratio 
adjustment on the front 
surface of SPF document
AE mode lamp
50
*   "
∗" in an error display indicates the error position.
Status
Display
Pre-heat 
lamp
Ready 
lamp
Remark
Download data receiving
"d" ON
ON
OFF
Date delete start
"d" ON
OFF
ON
Data write (Boot section)
"d" ON
Blink
OFF
Data write 
(Program section)
"d" ON
Blink
Blink
During SUM CHECK
"d" ON
ON
ON
Download complete
"0FF" ON
OFF
OFF
Error state
"E
 ∗" ON
OFF
OFF
1
Data reception error
6
Sum check (Loader section)
2
Loader function transfer
7
Sum check (Boot section)
3
FLASH ROM delete
8
Sum check (Program section)
4
FLASH ROM writing 
(Boot section)
9
Sum check (EEPROM section)
5
FLASH ROM writing 
(Program section)
10
Data error
AL-2041  SIMULATION, TROUBLE CODES  10 - 18
50
01
Lead edge image position
[Function]
Used to adjust the copy image position and the lead edge void amount on copy paper. The
adjustment is made by adjusting the image scan start position at 100% and the print start posi-
tion (resist roller ON timing). When this simulation is executed, the current set value is displayed
in 2 digits. (Center value: 50)
When [Exposure mode selector] key is pressed, the setting mode and the display are changed.
Enter the adjustment value and press [START] key to save the set value and make a copy.
When the adjustment is made by the main cassette paper feed, the adjustment values of all the
paper feed ports become the same. (When the set value is increased by 1, shift is made by
0.1mm.)
* When printing with the manual paper feed tray, use paper of the letter size.
[Adjustment procedure]
1) Set the print start position (AE lamp ON) (A), the lead edge void amount (TEXT lamp ON)
(B), and the scan start position (PHOTO lamp ON) (C) to 0, and make a copy of a scale at
100%.
2) Measure the image loss (Rmm) of the scale.
Set C = 10 x R (mm). (Example: Set to 40.)
When the value of C is increased by 10, the image loss is decreased by 1mm. (Default: 50)
3) Measure the distance (Hmm) from the paper lead edge to the image print start position.
Set A = 10 x H (mm). (Example: Set to 50.)
When the value of A is increased by 10, the image lead edge is moved to the paper lead
edge by 1mm. (Default: 50).
4) Set the lead edge void amount to 
B = 50 (2.5mm). (Default: 50)
When the value of B is increased by
10, the void is extended by about
0.1mm. (For 25 or less, however, the
void amount is regarded as 0.)
∗ The SPF adjustment is made by 
adjusting the SPF image scan start 
position after OC adjustment.
[Operation]
The operation is similar to simulation 46-
01.
Main 
code
Sub 
code
Contents
Details of function/operation
Mode
Display lamp
Default
Print start position 
(Main cassette paper feed)
AE mode lamp
Main cassette lamp
50
Print start position 
(Manual paper feed)
AE mode lamp
Manual feed lamp
50
Image lead edge void 
amount
TEXT mode lamp
Main cassette lamp
50
Image scan start position
PHOTO mode lamp
Main cassette lamp
50
Image rear edge void amount 
(Cassette paper feed)
AE mode lamp
TEXT mode lamp
PHOTO mode lamp
Main cassette lamp
50
Image rear edge void amount 
(Manual paper feed)
AE mode lamp
TEXT mode lamp
Manual lamp
50
5mm
10mm
Distance from the paper lead edge 
to the image lead edge, H = 5mm
Image loss, R = 4mm
(Example)
AL-2041  SIMULATION, TROUBLE CODES  10 - 19
50
06
Copy lead edge position 
adjustment (SPF) 
(excluding AL-2021)
[Function]
Used to adjust the SPF copy lead edge.
When the adjustment value of the document scan position adjustment is increased by 1, the
scan start timing is advanced by 0.1mm.
The print result is shifted to the opposite direction of the scan start position.
The adjustment mode can be changed by pressing [Exposure mode selector] key. 
(Adjustment range: 1 – 99, Default: 50)
∗ When there is no document in the SPF, copy is inhibited.
[Operation]
The operation is similar to simulation 46-01.
10
Center offset adjustment
[Function]
Used to adjust the center offset position of copy images on copy paper and that in scanning
document.
When this simulation is executed, the current set value is displayed.
Enter the adjustment value and press [START] key to save the setting and make a copy. (When
the set value is changed by 1, the center is shifted by 0.1mm.)
When the adjustment value is increased, the center is shifted to right. When decreased, the
center is shifted to left.
The modes can be selected by pressing [Exposure mode selector] key.
When the set value is changed largely, the area outside the shading area may be scanned to
cause black streaks on the edges.
(*): For Simplex models, skip.
* When printing with the manual paper feed tray, use paper of the letter size.
* In the 2nd print center offset adjustment, print is made forcibly as 1to2/Short Edge from OC
regardless of duplex setting.
[Operation]
The operation is similar to simulation 46-01.
12
Document off-center 
adjustment
[Function]
Used to adjust document scan off-center adjustment.
The adjustment modes can be selected by pressing [Exposure mode selector] key. 
(Adjustment range: 1 – 99, Default: 50)
When the adjustment value is increased, the print result is shifted to left.
[Operation]
The operation is similar to simulation 46-01.
Main 
code
Sub 
code
Contents
Details of function/operation
Mode
Display lamp
Default
Front surface document scan 
position adjustment
AE mode lamp
50
Rear edge void adjustment 
(SPF)
PHOTO mode lamp
50
Mode
Display lamp
Default
Print center offset 
(Main cassette paper feed)
AE mode lamp
Main cassette lamp
50
Print center offset 
(Manual paper feed)
AE mode lamp
Manual paper feed lamp
50
(*) 2nd print center offset 
(Main cassette paper feed)
TEXT mode lamp
Main cassette lamp
50
Mode
Display lamp
Default
Platen document scan 
AE mode lamp
50
SPF document front scan
TEXT mode lamp
50
AL-2041  SIMULATION, TROUBLE CODES  10 - 20
50
18
Memory reverse position 
adjustment in duplex copy 
(AL-2041 only)
[Function]
When this simulation is executed, the current set correction value is displayed.
Enter the correction value and press [START] key to save the entered correction value. (Correc-
tion value range; 1 – 99, Default: 50)
For S-D mode front surface print, reverse memory copy operation is performed from the rear
edge of documents.
When, therefore, the print position adjustment of output images is required, adjust as follows:
In the reverse memory coping, when the document scan is made in the arrow direction, the out-
put image is printed from the rear edge of scan image.
When, therefore, the print lead edge is shifted, set the reference chart so that the reference
position is on the rear edge, and use this simulation to adjust the set value so that the print lead
edge is matched.
Since printing is made from the image data most lately stored in memory to the lead edge data
from the print start position, the image lead edge adjustment is made by changing the end data
position stored in memory by the set value of this simulation.
Since it is performed by changing the scan end position, the image position adjustment is made
by changing the scan end position and the end data stored in memory.
The adjustment modes can be selected by pressing [Exposure mode selector] key.
* The initial value of duplex setting is "1to2/Long Edge" for the duplex model, or "2to1" for the
simplex model.
[Operation]
The operation is similar to simulation 46-01.
19
Duplex copy rear edge void 
adjustment (AL-2041 only)
[Function]
Used to adjust the rear edge void amount in duplex copy.
When this simulation is executed, the current set value is displayed in 2 digits. (Center value:
50.) The adjustment modes can be selected by pressing [Exposure mode selector] key. 
(Adjustment range: 1 – 99)
Enter the adjustment value with [ ] [ ] key and press [START] key to save the set value and
make a copy. (The paper information is cleared for every copy.)
When the set value is increased by 1, the void amount is increased by about 0.1mm.
* The initial value for duplex setting is "1to2/Short Edge" for the OC/SPF setting.
[Operation]
The operation is similar to simulation 46-01.
Main 
code
Sub 
code
Contents
Details of function/operation
Mode
Display lamp
Default
OC memory reverse output 
position
AE mode lamp
50
SPF memory reverse output 
position
TEXT mode lamp
50
Document transport direction
Document transport direction
Scan lead edge
Print lead edge
Lead edge void (1)
Print start position
Scan end position
(Default: Scan cut by void (1))   
Rear edge void
Print rear edge
Scan direction
Scan rear edge
Mode
Display lamp
Default
Paper rear edge void amount TEXT mode lamp
50
Print start position 
(Duplex back surface)
PHOTO mode lamp
50
Page of 120
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