I have had a 550B for quite a while.  A friend had a 1050 in storage that he wanted me to clean up and get working again. Everything works great except the powder check function on station 6.  My friend doesn't have a clue about its functioning.

I have examined the check and had to remove a bad battery and corrosion and the buzzer works now.

Is there a manual?

The square plastic bar on the underside of the case is curved and the one shown on the product part page is straight.  It may have deformed in storage if this even has a bearing on the correct function.  I can't figure out how it's supposed to be set up to work.

 

Any help would be shiny blue.

 

Bryan