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MBMCPS
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Streak one side Line HP Laser jet MFP 775

HP LaserJet MFP 775
Microsoft Windows 10 (64-bit)

Hi All, 

 

We have MFP 775 .   Below you can see it creates a one side single line when we print 11 x 17 

 

MBMCPS_0-1580241647213.png

MBMCPS_2-1580242275725.png

 

what i did :

Cleaning / Calibrating 

Using HP Cartridges. / changed

Replaced fuser 

Replaced Tray belt 

Replaced roller / Maintenance kit . 

Physically cleaned 

Upgrade firmware, change driver , factory defaulted. 

 


Does anybody have any idea Why can it be happen or how to solve ? 

 

thanks. 

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Streak one side Line HP Laser jet MFP 775

We have seen this issue when the mylar on the registration sensor assembly gets damaged. If you open the right door, the sensor assembly sits just below the transfer belt slot and pivots down to allow removal of the transfer belt. The top edge of that assembly has a mylar strip on it and we have seen instance where the mylar gets bent and then drags on the belt, creating the issue you are seeing. Photo below was from one of our clients, but the defect was on right side. I trimmed the bent side off two years ago, still running.

 

775 mylar.jpg

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MBMCPS
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Streak one side Line HP Laser jet MFP 775

thank you so much ! i saw it but i did not guess . Even after cleaned air pressure. It worked well ! 

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