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HP Sprocket Z3Z93A
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Saw many other older threads where this issue is discussed, but do not see any conclusion.

My Sprocket has suddenly started printing white lines/ streaks all over every print.

I have tried all the steps mentioned by the HP manual/ guide viz. calibrating with the blue colored paper, reseting the printer, but no luck.

I am guessing the problem started after I updated the firmware to the latest one (1.1.8). Have wasted multiple Zink papers because of this issue.

Any conclusive direction will surely help. 

Is there a way to downgrade the firmware and test if that was the root cause? 

 

PS: My print issues look exactly as it's discussed in this older thread: https://h30434.www3.hp.com/t5/sprocket/HP-Sprocket-prints-white-lines/td-p/6865021

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