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[DIY DTG] Behavioral Problem - Image elongated CIS on Workforce 1100

 
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Old May 28th, 2010 May 28, 2010 8:27:51 PM -   #1 (permalink)
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Default Behavioral Problem - Image elongated CIS on Workforce 1100

OK Team....

Well, I loaded up my CIS on my Workforce 1100 and tried to print a design... Now, the image is elongated. No banding, it's just a circle that prints as an oval... Anyone have any ideas how this can be happening? It happens in Windows and Linux under Gutenprint.

Thanks,

Bob ?;O)
 
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Old May 29th, 2010 May 29, 2010 12:38:28 PM -   #2 (permalink)
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Default Re: Behavioral Problem...

no banding or whitelines means that the drive system is ok
something is wrong with gutenprint settings
how is the print with the epson driver?
 
Old May 29th, 2010 May 29, 2010 2:53:04 PM -   #3 (permalink)
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Default Re: Behavioral Problem...

Simon, thanks... what a pain... I took the whole business apart and put it together and now I keep getting paper jam errors... Humph!

Bob ?;OP
 
 
Old May 29th, 2010 May 29, 2010 3:00:16 PM -   #4 (permalink)
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Default Re: Behavioral Problem...

Quote:
Originally Posted by colorfinger
OK Team....

Now, the image is elongated. No banding, it's just a circle that prints as an oval...

Thanks,

Bob ?;O)

are you printing at 720x360? try to print at 720x720.
at 360x360 my platen is slipping , at 720x360 images get distorted (ie circle looks as an oval) at 720x720 everything looks great
 
Old May 29th, 2010 May 29, 2010 3:13:13 PM -   #5 (permalink)
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Default Re: Behavioral Problem...

Thanks Zanone, if I can get it out of error mode I'll give that a try!

Bob ?;O)
 
Old May 29th, 2010 May 29, 2010 9:17:51 PM -   #6 (permalink)
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Default Re: Behavioral Problem...

I can't believe this one bit me all afternoon. I forgot to close the lid lever on the control console... It wasn't a paper jam error but a lid open error... Still haven't figured out how to get it to print correctly but it's late and I'll have to try again tomorrow.

Thanks,

Bob
 
Old May 29th, 2010 May 29, 2010 10:10:12 PM -   #7 (permalink)
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Default Re: Behavioral Problem...

Quote:
Originally Posted by zanone
are you printing at 720x360? try to print at 720x720.
at 360x360 my platen is slipping , at 720x360 images get distorted (ie circle looks as an oval) at 720x720 everything looks great
if there is slippage there are darker horizontal bands, and the design will come out shorter in length
 
Old May 30th, 2010 May 30, 2010 12:33:46 PM -   #8 (permalink)
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Default Re: Behavioral Problem...

Is this on your diy dtg machine? Please forgive me if I don't know what I'm talking about - but I have always wondered if the revolution ratio between the drive rod and larger conveyor rollers would cause distortion of the printed design (assuming you are using the conveyor-belt style). I imagine you would need conveyor rollers that are the same diameter and overall dimensions as the drive rod.
 
Old May 30th, 2010 May 30, 2010 1:05:12 PM -   #9 (permalink)
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Default Re: Behavioral Problem...

MC, I considered that but even if the larger gear rotates at a slower speed I would think that the belt speed would be constant. I'm going to try to put a spindle around the drive shaft to increase it to the same size as the conveyor roller. I'll let you know what I find.

Bob ?;O)
 
Old May 30th, 2010 May 30, 2010 4:37:42 PM -   #10 (permalink)
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Default Re: Behavioral Problem...

Quote:
Originally Posted by McCrockett
Is this on your diy dtg machine? Please forgive me if I don't know what I'm talking about - but I have always wondered if the revolution ratio between the drive rod and larger conveyor rollers would cause distortion of the printed design (assuming you are using the conveyor-belt style). I imagine you would need conveyor rollers that are the same diameter and overall dimensions as the drive rod.
if the roller is bigger than it should be then the belt goes faster and you have white horizontal lines and longer prints if it is smaller then the lines print on each other and you have darker horizontal lines

colorfinger can you post a picture of the print?
 
Old May 31st, 2010 May 31, 2010 10:11:15 AM -   #11 (permalink)
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Default Re: Behavioral Problem...

You should have seen my spindle... Perfect, and it mounted the rod well... The poor motor did not like it at all... Has to travel four times as far to turn.... I'm scraping it as a bad idea. I think it is more logical to place a 5/16 rod on the tension end and have the belt drive it instead of the 1" roller. I think this is the ticket here... This should preclude any ratio issues... Well, I'm off to Home Depot to find a rod.

Bob ?;O)
 
Old June 1st, 2010 Jun 1, 2010 10:08:03 AM -   #12 (permalink)
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Default Re: Behavioral Problem...

You know, if the image is elongated then the conveyor is moving too fast! I spent the whole weekend looking at it the wrong way. It definitely is not a gear ratio problem. The speed of the belt is constant. I am wondering if the encoder is not at an exact right angle to the wheel if this could be causing the problem.

Bob ?;O)
 
Old June 1st, 2010 Jun 1, 2010 2:18:47 PM -   #13 (permalink)
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Default Re: Behavioral Problem...

post a pic so we can help
 
Old June 1st, 2010 Jun 1, 2010 2:28:25 PM -   #14 (permalink)
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Default Re: Behavioral Problem...

Well everything's in parts right now... I should be putting it back together tonight. If I don't solve this by moving the sensor I'll definitely post some pics.

Bob ?;O)
 
Old June 1st, 2010 Jun 1, 2010 2:33:24 PM -   #15 (permalink)
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Default Re: Behavioral Problem...

i mean pics of the print not pics of the printer
 






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