Brother 9550 CDW prints faint

[tsbservice]

Hi All,

I have a mashine that somethimes print very faint, all image is almost invisible.
That happens from time to time. New Belt ans Drum units. No error codes.
Besides, they printed one scanned color document in B/W and it is fainted, when the same document is
printed in full color it is OK.
Customer is very unpleasant(A debt collecting agency) and I cannot do normal tests.
Any ideas gentlemans?

[Phil B.]

Hi All,

I have a mashine that somethimes print very faint, all image is almost invisible.
That happens from time to time. New Belt ans Drum units. No error codes.
Besides, they printed one scanned color document in B/W and it is fainted, when the same document is
printed in full color it is OK.
Customer is very unpleasant(A debt collecting agency) and I cannot do normal tests.
Any ideas gentlemans?


why can't you do normal tests?

clearly you have an issue with the K system somewhere... have you cleaned the k laser glass?

[tsbservice]

It was black toner cartridge loosing sometimes contact.