Is the rubber squeeze blade on the washup tray set evenly against the hard metal roller?
The wash up blades are interchangeable but marked for identification for unit 1 & unit 2. Maybe they were switched?
Chris, any photos to share ? How are they not cleaned as you feel they should be ? Ink stains ? Calcium build-up ? Paper left in rollers ?
Understand that much "debris" in your rollers is NOT water or solvent soluble, so the thorough cleanings we desire are not always possible with the products most use.
I allways use the wash-up trays for the same unit (I've marked them 1 and 2).
I also check the rubber blades, that they pick up fluid evenly. But the problem is more localy and with the form-rollers (ink not cleaned off at ±2cm), so there's not enough pressure at some places.
I usualy solve this by adjusting the pressure (with screwdriver), but some bolts are allready set to maximum pressure, so I have no options left.