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+   T-Shirt Forums > T-Shirt Industry Information > Direct to Garment (DTG) Inkjet Printing > DTG Brand > [DTG Brand] M2 Printing Problem - Solid Stripes Of White In Middle Of Print
Thread: M2 Printing Problem - Solid Stripes Of White In Middle Of Print Reply to Thread
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Topic Review (Newest First)
May 29th, 2019 06:24 PM
RedClothing
Re: M2 Printing Problem - Solid Stripes Of White In Middle Of Print

Quote:
Originally Posted by InspiredBuffalo
Interesting, I never had an encoder strip issue. Both my machines that I have owned came right from the factory, brand new.

In 7 years of owning an M2 I have never touched the encder strip, only to clean it.

Cool that it is fixed.
This machine is also brand new from Coldesi in Dec.
May 29th, 2019 07:44 AM
Ghoster32111
Re: M2 Printing Problem - Solid Stripes Of White In Middle Of Print

Nice to know that the problem of the streaks is semi-universal to the encoder strip
May 29th, 2019 07:34 AM
InspiredBuffalo
Re: M2 Printing Problem - Solid Stripes Of White In Middle Of Print

Interesting, I never had an encoder strip issue. Both my machines that I have owned came right from the factory, brand new.

In 7 years of owning an M2 I have never touched the encder strip, only to clean it.

Cool that it is fixed.
May 28th, 2019 05:27 PM
RedClothing
Re: M2 Printing Problem - Solid Stripes Of White In Middle Of Print

OK. Quick update. I found the problem. The encoder strip reader was not installed on the circuit board straight by the company that made it. So when the board with the reader was installed correctly and lined up with the encoder strip, the reader was skewed and not reading through the encoder strip straight.

I discovered this after I found that when I bumped the encoder strip while it was running, it would immediately make the white streaks! This gave me the idea to try raising the reader with a small washer, which made more white streaks, then also lowering the strip and that resulted in even more white streaks. So that lead me to believe the issue was definitely reader/strip related.

After trying a number of different heights and tilts of the reader in relation to the strip, I skewed the encoder reader a degree counter clockwise and the problem of the dreaded white streaks immediately went away.

They printed all day today without the M2 ruining a single shirt. First day since they bought it in Dec that it hasn't ruined 10-20 shirts., so I'm feeling pretty good about it. We are going to order a backup strip and encoder reader to have on-hand in the event something changes in the future and the streaking returns.

I'll take pics as a follow up this week when I'm back at their shop so that anyone who encounters this in the future will have an idea of what to look for.

Thank you for all the suggestions here. I read through every one on my way to eliminating what could have been to get to what it seemed to end up being.
May 24th, 2019 09:58 AM
InspiredBuffalo
Re: M2 Printing Problem - Solid Stripes Of White In Middle Of Print

This is a problem with digital machines, period. Fixes can turn into rabbit holes of money and time.
I had a problem earlier this year and it ended up costing me three days and 2000 dollars by the time I got it fixed.
Sorry I can't help more.

Good luck
May 24th, 2019 09:44 AM
RedClothing
Re: M2 Printing Problem - Solid Stripes Of White In Middle Of Print

Yes, totally cleaned the rails and oiled. The head moves with almost no resistance. There's just nothing for it to be binding on.
May 24th, 2019 05:15 AM
InspiredBuffalo
Re: M2 Printing Problem - Solid Stripes Of White In Middle Of Print

I'm sure the rails look clean but did you clean them anyway?

At this point, It is out of my wheelhouse. You're probably going to need some sort of tech support.
Wish I could help. I had the exact problem you are having but my solution was the problem's fix.

Just a suggestion, unless you're highly skilled in this machine don't start taking things apart before speaking to tech support.
I'm not sure where you got the machine and whether you have tech support.
I bought mine at coldesi, which offers free tech support for life if you are a customer.
May 21st, 2019 05:33 PM
RedClothing
Re: M2 Printing Problem - Solid Stripes Of White In Middle Of Print

OK, quick update. Thank you for all the suggestions. We definitely have a different problem than a binding carriage. The rails were already clean enough to eat off of, but I oiled all the wheels and the rails, as well as the carriage motor and the little white wheel on the right side that the carriage band goes around. The carriage slides from one side to the other with a whisper of resistance. It still ruined 4 shirts today with the solid white stripe laydown... SO, what else could it be at this point?
May 21st, 2019 06:34 AM
InspiredBuffalo
Re: M2 Printing Problem - Solid Stripes Of White In Middle Of Print

I like to start with the easy solution first. Most people I see on here go right to the big expensive fix when it's not normally the case.

I agree that if the cleaning does not work then it could be more. My advice is to look at the easiest fix first before jumping into bigger fixes.
May 20th, 2019 06:39 AM
Ghoster32111
Re: M2 Printing Problem - Solid Stripes Of White In Middle Of Print

Quote:
Originally Posted by InspiredBuffalo
I have found though that it is 90 percent of the time usually a matter of cleaning the rails.
like I said I do not have the printer but that kind of issue is either because of the encoder or the rails not being really clean I agree it is usually caused by the print head not moving properly. Another old school fix for something like this is look at the driver belt main gear for the belt that moved the print head carriage back and forth. some times the gear will cake on with dirt and bits of the belt between the teeth and cause the print head to "slip" again I don not know if that is of any help.
May 20th, 2019 06:11 AM
InspiredBuffalo
Re: M2 Printing Problem - Solid Stripes Of White In Middle Of Print

I have found though that it is 90 percent of the time usually a matter of cleaning the rails.
May 20th, 2019 06:09 AM
InspiredBuffalo
Re: M2 Printing Problem - Solid Stripes Of White In Middle Of Print

Yes, I agree with the above. However, the first step is to clean the rails and encoder strip.
The encoder strip I clean with a small alcohol pad. This is part of the weekly cleaning which should be done.
Of course they don't tell you this when you buy it. They make it sound as simple as possible. I have found all this out after seven years of owning this machine and dealing with all kinds of issues.

If you are satisfied that you have cleaned it properly then run it for awhile.
If it does not help then their is a step to remove the whole assembly and clean it. Oil the wheels. That is a whole procedure that I have never had to do. You might want to contact a professional for that.
May 17th, 2019 12:47 PM
Ghoster32111
Re: M2 Printing Problem - Solid Stripes Of White In Middle Of Print

Quote:
Originally Posted by RedClothing
Hey, that's an interesting idea. The rails are clean enough to eat off of. They get wiped and oiled every couple of days, but I do now see how it binding and slowing would make that streaking. So it seems like a really great place for me to start to try and track down the problem. I will completely disassemble the carriage and check and clean everything. I've got a few hundred orders to try and help my friend get through this weekend so I'll be able to pay close attention to when it does it and look for binding. Thank you!

Assuming that I don't find any wheels or rails binding, what else would be causing the carriage to bog down? The encoder strip or the actual motor for the head? It's gotta be something along those lines.

Also, I wrote it's a Viper M2 in the original post, it's just a DTG Brand M2. I mistakenly added Viper to the front of the model M2. I've since updated the original post to remove Viper.

Thank you again and if anyone else has any further suggestions, please help till I solve this.

- Ryan
I do not have an M2 but i have seen this happen on other printers and the usual fix is to clean the encoder strip and the encoder reader that is on the print head carriage. However I have also seen that happened when one or both the encoder strip and or reader are damaged and need to be replaced. I would try cleaning them first with a lint free cloth and see if it fixes the problem if not you may need to replace those parts.
May 17th, 2019 11:11 AM
RedClothing
Re: M2 Printing Problem - Solid Stripes Of White In Middle Of Print

Hey, that's an interesting idea. The rails are clean enough to eat off of. They get wiped and oiled every couple of days, but I do now see how it binding and slowing would make that streaking. So it seems like a really great place for me to start to try and track down the problem. I will completely disassemble the carriage and check and clean everything. I've got a few hundred orders to try and help my friend get through this weekend so I'll be able to pay close attention to when it does it and look for binding. Thank you!

Assuming that I don't find any wheels or rails binding, what else would be causing the carriage to bog down? The encoder strip or the actual motor for the head? It's gotta be something along those lines.

Also, I wrote it's a Viper M2 in the original post, it's just a DTG Brand M2. I mistakenly added Viper to the front of the model M2. I've since updated the original post to remove Viper.

Thank you again and if anyone else has any further suggestions, please help till I solve this.

- Ryan
May 17th, 2019 05:58 AM
InspiredBuffalo
Re: M2 Printing Problem - Solid Stripes Of White In Middle Of Print

I had this problem with my M2. The solution is an easy one. The rails that your printhead moves back and forth on are dirty.
Take some 2 and 1 oil and with a paper towel clean your railings where your printhead moves back and forth on.
Front and underneath.
If there is any dirt on the railings it will affect the timing of the printhead. It can cause it to bog down and not move properly.

I'm assuming the viper moves the same way as the M2.


Even though you don't see it. Mist in the form of ink comes off the prints as you are printing. It will attach itself to the rails.
I clean my rails once a week. I have never had this problem again.
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