Sharp AL-2030 Service Manual page 76

Main Sub
code code
50 01 Lead edge image position
Used to adjust the copy image position and the lead edge void quantity on the copy paper. The adjustment is made by
adjusting the image scan start position and the print start position (resist roller ON timing) at 100%.
(Operating procedure)
When this simulation is executed, the current setup value is displayed the current setup value is displayed in two digits.
(Center value: 50) Press the copy mode select key to select your desired copy mode, and the display will change. Enter the
adjustment value with the 10-key and press the PRINT switch, and the setup value will be saved and a copy will be made.
Press the clear key to save the setup value and exit from the simulation mode. When the adjustment is made for the main
cassette feed, all the adjustment values at all the paper feed ports become the same. (Increasing the setup value by 1
corresponds to about 0.1mm shift.)
Print start position (Main cassette paper feed)
Print start position (2nd cassette paper feed)
Print start position (Manual paper feed)
Image lead edge void quantity
Image scan start position
Image rear edge void quantity
: Supported if the model is installed and skipped if it is not installed.
(Adjustment procedure)
1. Set the print start position (A), the lead edge void quantity (B) and the scan start position (C) to 1 (Set range: 1 – 99), and
make a copy at 100%.
2. Measure the image loss quantity (R mm) of the scale.
Set C = 10 × R (mm) (Example: Set 40.)
When the value C is increased by 10, the image loss is decreased by 1mm.
(Default: 50)
3. Measure the distance (H mm) from the paper lead edge to the image print
start position.
Set A = 10 × H (mm) (Example: set 50)
When the value A is increased by 1mm, the image lead edge is shifted to
the paper lead edge by 1mm. (Default: 50)
4. Set the lead edge void quantity to B = 50 (2.5mm). (Default: 50)
When the value B is increased by 10, the void is increased by about 1mm.
(When set to 25 or less, the void becomes zero.)
• The SPF adjustment is performed by adjusting the SPF image scan start position.
06 Copy lead edge position adjustment (SPF)
The SPF copy lead edge adjustment is performed.
When the document scan position adjustment value is increased by 1, the scan start timing is advanced by 0.1mm.
As the print result, it is shifted in the direction opposite to the scan start position.
Each mode can be selected by pressing the density select key.
Front surface document scan position adjustment
Rear edge void adjustment (SPF)
∗ When there is no document in the SPF, copy is inhibited.
10 Center offset adjustment
Used to adjust the copy image position on the copy paper and the center offset position when scanning a document.
(Operating procedure)
When this simulation is executed, the current setup value is displayed. Enter the adjustment value with the 10-key and press
the PRINT switch, and the entered value will be saved and a copy will be made. When the clear key is pressed, the entered
value will be saved and the simulation will be terminated. (When the setup value is increased by 1, shift is increased by
0.1mm.)
Print center offset (Main cassette paper feed)
Print center offset (2nd cassette paper feed)
Print center offset (Manual paper feed)
Second side center offset (Main cassette paper feed)
: Supported only for installing models, and skipped for not-installing models.
∗ When the setup value is too great, outside of the shading area may be read, and black streaks may be produced on the
edges.
When the adjustment value is increased, the image is shifted to the left.
When the adjustment value is decreased, the image is shifted to the right.
Adjustment mode
AE ON
↓
Mode
Adjustment mode
AL-2040CS SIMULATION, TROUBLE CODES 10 - 14
Content
Lamp ON
AE, main cassette lamp
AE, 2nd cassette lamp
AE, manual feed lamp
TEXT, main cassette lamp
PHOTO, main cassette lamp
AE, TEXT, PHOTO, main cassette lamp
TEXT ON PHOTO ON
↓
(Example)
Lamp ON Default
AE mode lamp
PHOTO mode lamp
Lamp ON
AE, main cassette lamp
AE, 2nd cassette lamp
AE, manual paper feed lamp
TEXT, main cassette lamp
↓
Distance from the paper lead edge
to the image lead edge: H = 5mm
Image loss:
R = 4mm
5mm
10mm
50