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TheWildD
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DesignJet printing problems

HP Recommended
DesignJet 500
Microsoft Windows 7 (64-bit)
I have problems during the print. Every 20cm approximately i have doubled image. It looks like my plotter misfeeding the paper every now and then. Someone knows how to fix this? I don't know if it is possible to upload the pic here, I suppose it would be helpful.
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D Hook
Level 7
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Maybe check to see if the roll is free to turn.  If it's getting bound up or the roll is too big or not positioned correctly it can cause this.

 

 

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TheWildD
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Roll is free to turn. It is not too big, it is 24" Fabriano roll. It is positioned correctly. Any other suggestions? Thank you in advance.
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mapbrix
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Perhaps a wild idea, but the HP Deskjet (yes, almost 30 years ago!), used to have paper slippage due to the rubber rollers becoming smooth/coated.  My recollection is that HP produced a sandpaper device to remove any film on the rollers, ie to rough the surface a little and improve traction.  Just a thought, good luck.

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JackB44
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This is an old printer and this defect occures because of age (like old people loose tooths). Task is pretty complicated and part is almost hard to get but it looks like that you need to replace encoder disk on drive roller (if rubber on drive roller is good and all pich-wheels are ok, not broken or missing).

Happened to me the same about 7 years ago, encoder disk accumulated so much dust&dirt on it so I have had to replace it. Than to calibrate paper advance, and printer was working fine again.

 

 

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