I run a photo lab for a local college and we have been having trouble of late with T-Max 100 film. We run it and it comes up blank. No edge numbers no images. The leader is developed but thin. We are using Arista liquid film developer diluted one to one. All the other films are coming up just fine but not the T-Max 100. Anybody have a similar situation? Any ideas?
My thinking so far:
Can't be devo as other films are coming out fine.
It's not contamination as other films are fine and I made sure the students washed everything before they started.
Fixer maybe as I have them fix 10 minutes to get rid of the magenta cast in T-Max 100 but, I've over fixed before.
Any help is deeply appreciated.