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Fiber or other containment attached to the print carriage, dragging through the ink...

This workaround essentially turns off color management, and passes the colors in the file (assuming that they are CMYK) directly through to the printer, without adjustments or corrections. It tends to work best with CMYK files. It also will tend to make nozzle-induced banding much more...

I ran a test to reproduce the issue that you are seeing with this Pantone color (377 C); please see the attachment. I was not able to discern any banding in the color in my output. Note that this was produced on 3M IJ40C media, using a custom profile at 120 percent ink limit. In many cases...

Many designers will create separate files for the various surfaces of the vehicle (driver side, passenger side, hood, roof, etc) and allow the RIP software to break the file into the panels (aka tiles), define overlaps etc.

I would guess that this is the case. Use on 3rd-party ink will cause increased cleaning cycles and more waste ink as a result.

The black head has a number of misdirected nozzles (deflected), but the other colors are all looking good, for the most part. The print sample does in the first post has a lot of ink coalescing in all colors, indicating that the media is not taking the ink well. This could be caused by heater...

It would be more helpful if you could post a nozzle test print. There looks to be chromatic banding in the blue area. One way to test that is to print it uni-directional and assess. The feed calibration plot uses only the K printhead, and any nozzle issues (outs or deflections) will be...

Am I correct in that the image that the OP posted would be fabricated from non-printed, (traditional cut only) vinyl? If so, why?

The two shows that you referenced (ISA and SGIA) are the two largest trade shows in the industry (sign and display graphics) for the US/ North American market, with around 20,000 - 25,000 attendees each. A lot of the same companies exhibit at both and both have education and training...

If possible, please try to post a photo of the output. I have seen cases with the HP Latex machines where the ink is incompletely cured in the printer, which can give the appearance of chromatic banding that is primarily noticeable in solid black areas. Remember, black is almost always...

In most cases, yes it is recommended that you start with the 'Generic' media, and then clone it and build a custom Media Profile from it. This will give you all of the options that are available for your print mode(s).

What is the size of the print (width x height) that was posted? Based on the image file (which is inexact at best), it looks to be very small (less than 3 inches wide x 1 inch tall). On the Latex 300 series, I would say that this edge definition problem at very small scale is related to the...

The answer depends on the amount of control that the user desires, as well as the stability of the printer, it's environment and the roll-to-roll media consistency. I would say in the large-format digital print realm, relinearization is most often a reactionary measure to inconsistencies in...

For the transparency issue (color change inside the rectangular area of the transparency) the solution is to use a specific Color Management setting in Versaworks, called Full Page Conversion Mode. It is located in the Job Settings dialog > Quality tab > Color Management Preset list box. See the...

Delta E represents the physical distance between two colors in the LAB color model. The smaller the number, the closer the match. http://en.wikipedia.org/wiki/Color_difference

First, to get the best possible results in reproducing Pantone colors on a digital printer, you need to: 1. Be working with Vector data (no TIF or JPG), typically EPS or PDF 2. Design in an application that makes Pantone palette, such as Illustrator, Corel, or Flexi. 3. In the ONYX RIP, be...

What does your nozzle test print look like? If the machine sat without printing for a lengthy period of time (say more than 4-7 days, it is very likely that you have a number of nozzle outs (clogged nozzles). I would suspect the Black with possibly Magenta or other colors being affected as...

Different how? Only for PDF or for other formats like EPS? Better / Worse?

I would recommend completely powering down the printer before performing the cleaning of the drive roller (from the rocker switch on the back). The rollers are driven by a motor when the machine is on and this will not allow you to easily and safely turn the rollers, so power down before...

+1 Don't use anything too aggressive on the rubber drive rollers or they can be damaged. Isopropyl Alcohol is fine.