Universal Laser Systems X-600 Troubleshooting Guide download pdf (Page 41)

OPERATION AND PRINTER DRIVER CONTROLS

Section 3-16

Universal Laser Systems, Inc.

Setting this parameter too low may cause the effective part of the graphic to appear thin, faint, fuzzy, or

non-existent. Too high of a parameter will cause these objects to appear thicker, bolder, or more powered

than the high density areas of the graphic.

DENSITY:

Adjusts the difference between the entire non engraved and engraved areas. If the

parameter is too high, then the entire engraved image may appear thick, bold or over powered. Too low

of a setting may cause the image to appear thin and pixels or parts of characters may disappear

altogether. The opposite effect would occur on inverted images such as white text on a black background.

TUNING:

Adjusts the image so that the pixels vertically line up with each other during the left and right,

bi-directional raster strokes, will line up properly. A misadjusted TUNING value will cause the image to

appear double-imaged or inadvertently bolder than normal. A typical non-Image Enhanced TUNING

value can be from -4 up to 0, whereas a typical Image Enhanced TUNING value generally averages

around 0. Yes, TUNING will be different if you have Image Enhancements enabled or disabled. Saving

the printer driver settings will also save the TUNING value.

Procedure

The following procedure assumes that you have some experience working with the laser system and you

have a general idea of the Power, Speed, PPI, and Image Density settings that you intend to use for the

chosen application material.

In the following example, we will be engraving painted brass choosing 100% speed for good throughput,

and Image Density 5 for good quality.

Step 1:

Establish the nominal power setting.

In your graphics software, create a series of 5 rectangles that are about ¼ inch high and 6 inches wide as

in the following diagram:

Starting with the top rectangle set the power setting to a value that you know will be too low. For

example, set it to 5% power and the rest of the parameters to 100% speed, 1000 PPI, and Image Density

5. At this time, ensure that Image Enhancement is NOT enabled. Engrave the first rectangle at 5%

power, increasing the power for each subsequent rectangle 5% finishing the series off at 25% power and

note the results. What you are looking for is the LOWEST power setting that has the cleanest removal of

material. This would be the nominal power setting. While higher than nominal settings may also produce

clean engraving, it will overpower the material and may cause highly detailed engraving, unlike these

rectangles, to appear too thick, bold or washed-out. If 25% is not enough power, then engrave the

rectangles again, this time starting at 25% and incrementing by 5% and so on. In our particular example,

we’ll say that 20% power looks good but 15% appears underpowered. Since we know that this material

happens to be sensitive to small power changes, we’ll need to narrow it down a bit further. Engrave the

rectangles once again, but this time start the top rectangle at 15% then add 1% for the next rectangle and

so on until you reach 20%. The results now indicate that nominal power setting of 17% power looks as if it

is the LOWEST power setting that produces the cleanest results at 100% Speed, 1000 PPI, and Image

Density 5.

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Universal Laser Systems X-600 Troubleshooting Guide Page 41

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