Hrst, thank you for your input to this thread. You pointed out many possibilities of the problem. I believe I have troubleshot through most, if not all, of them. I believe my ATL-2300 is very healthy and the problem is not caused by anything related to temperature control, preheat of drum, chemical contamination, etc. But I will not rule them out and I will keep an eye on these possibilities in my future processing.
I think you brought up one thing that I never thought of before. This is absolutely something to think of. I just checked Z-131 again and it says to replenish with 75 ml of LORR developer replenisher for every roll of 220 processed. This is about 100 ml of working developer. If Kodak says so, I should be able to process a roll of 220 with as little as 100 ml ideally. Of course this is for a roller transport type of processors that usually have a large tank of developer (several liters). They usually have only one roll of film going through the tank at a time (some may have multiple rolls). This is very different from a rotary processing processors like Jobo. But the difference should not make it require as much as 1 liter to develop a roll of 220.
Thank you so much for pointing out about the low replenish rate by those continuous processors. There is no doubt light at the end of the tunnel to me. I will open up my mind and start all over with my ATL-2300 again. I will try out Jobo's numbers again and see what will come out of that.
Many thanks to everyone's input to this thread. Not I don't believe you guys. I just need to hear all your experiences so that I am convinced to try again and find out what I did wrong. I hope to report back what I find in a couple of weeks if not sooner (need to shoot some rolls of something with no concern of losing them).
Last edited by mtjade2007; 10-11-2009 at 01:39 PM. Click to view previous post history.