[earllin]

Dear All

As title, can you print pure color image on garment? No lines show on the print just like screenprint.
I do my best, but I still can't get a perfect one.
Do anyone overcome this restrict of Kornit machine?

 

[sandpapery]

What color are you trying to print (ie, Yellow on a black shirt, or red on a black shirt, ect.)

We have troubles printing mostly on red and royal blue tshirts. Or large amounts of flat red shades on most color shirts. Even though my boss hates it, sometimes I will have to send a shirt through twice. On the second time I will lower the spray to 2 and just print color. This is hardly cost-effective, but sometimes it just has to be done.

 

[earllin]

print gray on black T, there's a little light purple lines.(yellow not good enough)
print red on black T, there's a little light yellow lines.(magenta not good enough)
print black on white T, there's a little white lines.(I use C70M70B100 to print this image, sometimes I need to use interlace.)

I know I must change headtolerance and movementfactor in MachineMotionParameter.txt t get a better result. But this problem really annoy me a lot!
If you have this problem, you can ask Kornit to give you this tech doc:TN:60-YFAC-0030, the subject is: Troubleshooting - Lines in Print. But I can't figure out this tech doc fully.

 

[kornitguy]

Even with perfect nozzle tests and interlace printing setting we still sometimes cannot get perfect solid reds.

It's kind of sad really, they can put down so much ink, but can't control where it goes.

 

[earllin]

I try to change parameters in MachineMotionParams.txt and change media in korint machine, I get a very good solid red finally! But it's still not stable. Sometimes there are lines still. So sad...

 

[kornitguy]

Same here.

Maybe pushing the resolution in the RIP up to 818x363 will help? To get the extra drops in there to spread? Or 909x363?

 

[earllin]

I use QuickP Designer to deal the image file. So i can choose the resolution by changing media on the kornit machine only.

 

[theera.bps]

It seem color management system not correct. I was testing by making new calibration with i1. I got it better result on solid color.

 

[earllin]

Sounds great! But what's "i1"? I never heard it.

 

[theera.bps]

Dear Earlin

i1 is a equipment for read reflectance value for making calibration and profile. This is one of component on color management system that i told you on my the last post.

For QuickP Production did not supported with ICC profile yet but it having Look up table and linearlization processed that using with i1. After you making the good of the both process then you can going to QuickP Designer to send the test chart for making the printer profile to put it on Photoshop or Illusstator and Corel Draw on color setting menu.

This is the short process that i can told you. You need to find a professional service for color management system in your locate to consult and service for you.

Theera.bps

 

[earllin]

Dear Theera.bps

Thanks for your information. I remember what's i1! I know what you are saying. I am wondering to buy i1 or not. This calibration is mentioned in manual.
Thank you very much.

Earl

 

[theera.bps]

Dear Earlin

You can buy i1 with i1 match. i1 match is a software that can calibrate Monitor, Printer and Scanner. It will help you get the better solid color before calibrate.

Good Luck