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HP ENVY 4501 e-All-in-One Printer

Hello, I am a Purdue student, for a class we are trying to control broken printers, I have an old 

HP ENVY 4501 e-All-in-One Printer. I need to figure out the wiring schematics for the linear encoder sensor. 

 

 

I really only need to know what the 6 pins are.

 

Thank you!

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