sc303 mpc 3500

[cva]

mpc 3500 sc 303 .........

[Debs1964]

mpc 3500 sc 303 .........

Is this a statement or a question?

[Debs1964]

Making the assumption that it was a question, it is a charge fault on the yellow PCU, probably a bad connection, especially if you've taken out the charge roller to clean it.
Next time a little more info would be helpful, i.e. telling us what you've done up to now to resolve the problem.

[slimslob]

Making the assumption that it was a question, it is a charge fault on the yellow PCU, probably a bad connection, especially if you've taken out the charge roller to clean it.
Next time a little more info would be helpful, i.e. telling us what you've done up to now to resolve the problem.

If you have taken the charge roller out to clean it, you most likely bent the contact on the charge roller assembly.