Hi my dc252 prints b/w prints ok.When i print full colour black the prints starts black and +- 80 prints ok ,the 81st print its got a green tint and stay like that. It drift from black to green tint.
Replaced the all the drums,mcu,ess,bias,charge,lvps pwbs. The kc and my ros. 1st btrs and backup roll
Mob assy,fuser, ibt belt.
I reloaded machine software 1.210.25 and reloaded fiery and all print drivers and cws.
I did a max setup and then i did a calibration with spectro
When i do a internal test print (pg print) i can see the change on the process black. I did about 500 internal prints.I can see the change in the 20 to 5% bolcks.The problem are on the machine i think.When the machine prints the process black right its stay like that for about 80 prints and then print 81 gots green tint.And then it stay green for the rest of the 500 prints untill you calibrate and then back to black again.Its look like to get the machine to print process black right again i have to calibrate
This is an old thread, I am assuming you found a solution. I am posting because I have a machine doing what I believe is the same thing yours was doing. Ours is a X700. After a calibration it will run perfectly for 81 pages, pause for a moment and when it resumes the calibration is WAY off. You said a green tint. We were getting blacks change to a muddy green brown. Like a really bad process black. If we are running a bw document the blacks become extreamly over saturated with almost no transition in the gray scale. If we then calibrate off the glass it is again perfect for 81 copies. It is as the machine looses its calibration on the black channel.
We are stumped. We have found replacing the MCU board will fix the issue for about a month. I would appericate any help that may come my way.