I recently attempted to print a very light color of borders that extended from the top of the bed about 10 inches. The ink was mostly composed of white and revealed things about the press that are perplexing. I have several issues going on, and perhaps this was, unwittingly, a test of all of them.
For one thing, I have not got anywhere on the previous post, because I made committments to being ready for shows and having prints to sell at them. I worked around my issues. The roller bearing adjustment has not been done yet. See this post:
I have issues with the top of the bed consistently not having the same amount of impression. During this printing, I can see that there is an abrupt change in color. The top of the bed color looks good, but then it is very muddy. We discovered a feeling of wear on the bearing rails that dips slightly, felt by running a finger over the metal. It is right across from this that the change in color/impression is muddy and heavier. If the bearing rails are worn, then maybe some paper or tape might fill it in. I tried a little, nothing happened. I had to stop my experiment there for the day.
It is also possible that I have set my rollers too low, even with what appears to be the right ink strip size. That is the only thing that comes to mind that might cause the muddy color. Then the form rollers are pressing on the type or sliding (though this is hard to actually see) and dragging/pulling with it issue No. 3. I can’t get my rollers clean. I think I need new rollers. Even after having light ink on them, if I really scrub form rollers with type wash I can always get more dark ink off. Or are the rollers degrading? The roller next to the motorized roller is pitted toward the ends and traps ink all the time.
I know, I sound like a basketcase. If anyone would like to suggest a direction to pursue first, I would be grateful. At least I have no imminent printing plans and I would like to solve these issues if I can.