Sep 16, 2010. I have problem with scanning barcodes via Datawedge application. When I scan a EAN13 code everything is ok, but when i try to scan a 3 of 9 Code (CODE39?) 'Error Scanner: SCN1: Failed to get. WHAT SCAN ENGINE DOES THE UNIT HAVE? PLEASE CONTACT ME AT JACK@CODEO.CO.UK.

• Pros Six-color scanning yields excellent color quality. Scans photographic prints and film. Can scan up to 16 slides at once. • Cons Scan software is cumbersome in some ways and sometimes slow to react to a command. • Bottom Line The HP Scanjet G4050 offers six-color scanning for excellent scan color and does a good job on both prints and film, including mounted slides. You've almost certainly heard of six-color printing, with the extra ink colors making it easier to print at true photo quality. But i'll bet you haven't heard about six-color scanning.

That's because the scanners you're used to all use three colors for scans. So does the default setting for the hewlett-packard scanjet g4050 photo scanner ($200 street).

But what's new—and very much different—about the g4050 is the option to scan in six colors instead. The g4050, which is aimed at home users who are primarily interested in scanning photos, is one of two hp six-color scanners. The other is the hp scanjet g4010 photo scanner ($150 street). The two are essentially identical when it comes to scanning prints, according to hp: they both have an optical resolution of 4,800 pixels per inch (ppi), but the g4050 adds hardware-based dust and scratch removal for film. And although both contain transparency adaptors in their scanner lids, the g4050's is larger, with room to scan 16 slides at once, for example, compared with only five for the g4010.

Both offer six-color scanning for prints, but only the g4050 offers six-color scans for film. Free Download 3d Studio Max Full Version With Crack. The key to six-color scanning is a second light source. Most scanner bulbs shine with three distinct, strong peaks in frequency—the three colors for scanning—each in a different part of the visible spectrum. Colors under those conditions look different than they would if the light source had a continuous smooth spectrum like the sun's. So, at the risk of oversimplifying a bit, the scanners are calibrated to convert the colors that the sensors see into the red, green, and blue values they would see if the light source had a smooth spectrum.

There's an important shortcoming to this approach. Say you have two photos that look identical in sunlight, but one was printed on an ink jet printer using dye-based inks, and the other is a traditional silver halide print.

Colors that look the same to the human eye in both photos will typically reflect different combinations of frequencies from the scanner's light source, so they won't match under the scanner light—just as two pieces of clothing can match under a store's fluorescent lights but show as different colors in sunlight, a phenomenon called metamerism. My Tribe Full Game Download here. These differences in the reflected light for different kinds of originals mean that the calibration has to be tuned for a specific type of scan target. T Shirt Design Tool Html5 Tutorial. As hp rightly points out, this is becoming more of an issue now that you can print high-quality photos on computer printers, and people sometimes want to scan them (especially if they no longer have the digital file available).