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HP DesignJet T520 24-in - Roll not loading successfully

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HP DesignJet T520 24-in
Microsoft Windows 10 (64-bit)


  there is an issue with loading roll on my HP DesignJet T520 24-in Printer. The printer is not able to detect a roll. I'm using original HP Bright White Inkjet Paper (Q1445A).  Tried to  change Paper Type from Plain to Generic Natural Tracing Paper < 65 g/m2 and it worked for a while, but than the problem occurred again. Is it mean that the sensor is really damaged? Is there any way how to clear the sensor by myself?

HP Designjet T520 24in

Firmware Version AXP2CN1733AR
Total Page Count 11009

Level 6
217 187 21 32
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Hi Ludek,

Check the left side of the Spindle. I have found that the end ring sometimes loosens and then rolls have trouble loading.

Simply just snap/push back in and hopefully the rolls will be OK.


If the Sheet feed is  working then the sensor that detects media is working fine.

If the above does not help then there may also be a rewinder issue.


Good Luck,

Roy K

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