LSU Skew is off ~.5mm (will look into adjusting this). However, 61-04 is devoid of yellow. DV Unit & Drum Unit have been replaced. Thinking about turning LSU screw 5 clicks at a time in either direction to see if shows on paper. Yellow does show up on copies but is ~3mm off.
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Re: MX-6201n missing yellow on Sim 61-04
50-22 Fails. Reset values in 50-10. Still no good.Comment
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Re: MX-6201n missing yellow on Sim 61-04
Cracked drive gear on the Primary Transfer Belt Unit is usually the cause of failing registration adjustments.
But..... if you install the MX6200 Primary Transfer Belt Unit instead of the MX6201 Primary Transfer Belt Unit, you'll often get no yellow or poor registration as the older unit has different follower rollers within the belt unit (helps lower the belt down to the yellow drum, and down onto the registration sensors at the other end).
I have seen this myself, I have tested it myself.
The belt unit fits and looks almost identical from the outside, but internally there are differences. B/W copy & print works perfectly, but color registration fails in simulation, and slowly goes out of calibration if set manually during use.
Confirm 64-01 works with yellow. The 64-01 test is sourced from the LSU controller. This will confirm the LSU and all imaging units are OK.
If 64-04, 64-05 and 64-06 don't work with a certain color, you have a problem with the Laser Driver board interface or harness between the LSU and the driver board (next to MFP). All of those tests are sourced from the MFP.Comment
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