hello yoreparo friend I have a problem already several days in a 2045 hobby. the problem is that the developer is going up to the cylinder when making copies when the copy comes out the sheet comes out with spilled developer. I did a cleaning to the development unit, I changed all the seals of the unit but even so the developer continues to raise the cylinder. Could you tell me what this fault may be. Thanks in advance for the help you can give me.