I have had a MB Traveler fountain pen for quite some time. The ink recently has stopped flowing
I have cleaned it repeatedly several times including flush until water clear, when I put the cartridges back in it takes awhile to work but then stops writing at all after short time.
I use the pen almost daily and had for years with no problem. There has been no damage. I use the 105191 Mystery Black cartridges.
I thought I'd check here before sending to MB.
Thanks