HP Latex 260 - drop detector question

[FJH]

Hello:

I got a used have HP Latex 260, after solve some printhead problems, It was working fine for two months. Suddently I it started to show me a message about drop detector ("52:01 Ink Funnel mispositioned or obstructing drop detector") but it let me continue, so I continue printing for maybe three weeks more, after that the printer stopped.

I decided to dissasembly the drop detector to clean it, and in the process, I found a black little piece of the printer (2" x 0.75") with three rounded batteries inside the little piece, over the drop detector, and obviously I knew that it wasn't its right possition and I don't know what is the right prossition of that piece.

Maybe some of you can recognize the pieze and let me know where it should be.

Thanks for your help.
pd. I cleaned the printer, I assembly again but it doesn't pass the drop detector test.

 

[ToTo]

The part you’ve found is for sure not part of the printer.
Regarding the issue, it could be dirty line sensor, encoder strip or a defective DD.
Clean line sensor and encoder strip and do DD calibration.

 

[FJH]

Thanks god is not a part of the printer. Thanks for the advice ToTo, I will do it.