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[DTG HM1] Double layer

 
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Old July 9th, 2015 Jul 9, 2015 6:52:07 AM -   #1 (permalink)
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Default Double layer

Starting to feel like I post too much haha

My printer has started to print a lighter color layer while printing the regular color layer....I'm not sure if that makes sense. After the white underbase is printed, the color layer starts printing but also does a lighter off centered color layer at the same time. It gives my prints an unwanted 3D look.

Any tips on how I can possible fix this? Wish I could post pictures to help explain.

Thanks in advance!
 
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Old July 9th, 2015 Jul 9, 2015 8:47:15 AM -   #2 (permalink)
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Default Re: Double layer

Here are some pics of what I mean. I do not think it is happening because of smudging. The faint extra layer is printing my created job but I just don't know why it is appearing
Attached Images
File Type: jpg photo 3.JPG (2.65 MB, 104 views)
File Type: jpg photo 4.JPG (2.88 MB, 71 views)
File Type: jpg photo 5.JPG (2.60 MB, 63 views)
 
Old July 13th, 2015 Jul 13, 2015 5:35:41 AM -   #3 (permalink)
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Default Re: Double layer

Still no progress on this. So far I have clean the machine multiple time, continuous nozzle/head cleanings, and a few alignments and air dusted the sensor. Feels like I'm getting closer, hopefully so
 
 
Old July 13th, 2015 Jul 13, 2015 5:44:17 AM -   #4 (permalink)
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Default Re: Double layer

Check the height. If the ehight is too far this can happen
Some of the nozzles could be partially clogged causing them to eject in a off direction.
The head might be starting to fail.
 
Old July 13th, 2015 Jul 13, 2015 6:27:01 AM -   #5 (permalink)
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Default Re: Double layer

Could be a corrupt file. Try re-saving it in the native application and try printing it again.
 
Old July 13th, 2015 Jul 13, 2015 6:36:14 AM -   #6 (permalink)
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Default Re: Double layer

I really do not think that is a corrupt file.
Nozzles are aimed in a different direction.
I have seen this with a failing print head, dirty or clogged nozzles or ink dried on the printhead.
Also when the print head is too far away. Bi-directional printing and timing issue. But it looks too faint for a bidirectional issue. Did you try unidierctional?
It aslo looks like the black image is off any other colors do this?

Print some vertical lines as CMYK and Red Green Blue Black.

If you have one or our PowerRIPs you can turn off CMYK source profile and print from the application. That way you can get pure colors.
Almost as good would be a nozzle check does it happen there, do all the steps line up nicely
 
Old July 13th, 2015 Jul 13, 2015 7:39:56 AM -   #7 (permalink)
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Default Re: Double layer

I have tried different images but it does the same thing. Sometimes faintly or more harsh. I move up the platen and let it adjust itself to the printer.

I am not sure what you mean by unidirectional. The black ink seems to do this more harshly but I print a lot of images with black boarders.

I printed a CMYK image and it looks pretty solid to me. I added a closer look to the black ink next to the yellow
Attached Images
File Type: jpg photo 1.JPG (2.13 MB, 45 views)
File Type: jpg photo 2.JPG (2.30 MB, 39 views)
 
Old July 13th, 2015 Jul 13, 2015 9:01:58 AM -   #8 (permalink)
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Default Re: Double layer

That Black and yellow look o+OK to me n the picture.So do they look Ok to you also? Unidriectional and bidirectional are sometime call normal speed and high speed. Bi diretional being the hi-speed.

Ted
 
Old July 13th, 2015 Jul 13, 2015 10:28:17 AM -   #9 (permalink)
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Default Re: Double layer

They look good to me. All the blocks are solid with not print outliners. how would I be able to change the speed of the print head?
 
Old July 13th, 2015 Jul 13, 2015 11:20:13 AM -   #10 (permalink)
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Default Re: Double layer

Hello Swisha,
You do have RIP? Is it ours PowerRIP RIP PRO or Kothari Print Pro or Cadlinks' Digital Factory RIP. I am pretty sure all three of us offer a choice for Bi-directional printing called High speed or uni directional call normal. In our RIP it is in the PPD settings under preferences on the print dialogue if your are printing directly from an application or in the Print Settings, if you opened an image directly in the RIP.

These ghost images do not show up in the print previews correct?
 
Old July 14th, 2015 Jul 14, 2015 4:24:44 AM -   #11 (permalink)
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Default Re: Double layer

mine is RipPro v6
 
Old July 14th, 2015 Jul 14, 2015 6:29:18 AM -   #12 (permalink)
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Default Re: Double layer

Under create Print Job/Import graphics there is a tab called Print Settings. The bottom box on that page says "Print Direction" (color) The print direction is actually for white and color and offers the choices of unidirectional or bi directional. Try unidirectional to see if the problem gets better. Have you taken one of those small dental mirrors and looked at the bottom of the print head to see if it is clean. Cleaning a print head is delicate work.
 
Old July 15th, 2015 Jul 15, 2015 6:11:37 AM -   #13 (permalink)
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Default Re: Double layer

I have not cleaned under the print head. I spend yesterday looking for a small mirror to use. Is there a process in cleaning under the print head?
 
Old July 15th, 2015 Jul 15, 2015 6:41:45 AM -   #14 (permalink)
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Default Re: Double layer

I use paper towels like Bounty. I soak them in Windex or cleaning solution and damb the surface of the print head. I DO NOT RUN BACK AND FORTH. You must not scratch it. DO not do this if it looks clean. Do this carefully if you see dried ink on it. You should nto see dried ink on it. Of course I know you already know to fill the capping station with cleaning solution at night and let the print head soak.
What happened with the unidirectional print test?
 
Old July 16th, 2015 Jul 16, 2015 8:38:44 AM -   #15 (permalink)
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Default Re: Double layer

I haven't tried the unidirectional print yet. I was looking under the print head and was thrown back at what I saw. The amount of dried ink was crazy. I added photos but they are grainy. I took time to figure out how I should clean it because I know that is a sensitive area. I managed to get it clean now to try the unidirectional print direction
Attached Images
File Type: jpg photo 1.JPG (129.8 KB, 42 views)
File Type: jpg photo 2.JPG (124.5 KB, 41 views)
File Type: jpg photo 3.JPG (2.15 MB, 34 views)
 






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