crwdns2933423:0crwdne2933423:0
crwdns2918538:0crwdne2918538:0

crwdns2934241:0crwdne2934241:0 leafybye

crwdns2934249:0crwdne2934249:0:

It does look dirty, but the pins could also be damaged or worn. So, yes, being dirty could be the problem.

I would try to clean each contact with a high % Isopropyl alcohol (99-91%) and a soft toothbrush, or toothpick wrapped in a bit of paper towel. Be careful not to rub the contacts with the actual toothpick surface.

If all that doesn't work you might need a deoxider made for gold plated contacts, such as DeoxIT® Gold G-Series sold with a micro brush applicator (***G100L-16BX).***

Apparently opening the cartridge is not recommended because supposedly it does not snap back together, and glue might be needed. I have not verified this.

crwdns2915684:0crwdne2915684:0:

open