MXM264 grey prints

[Leebs14]

I have a MXM264 which customer complained was printing light, what they meant were the black solids were not black but grey. So I fitted a new drum, charge and developer, set it all up, calibrated etc. But the blacks are still not black they are grey more of a charcoal colour rather than black. Are there any adjustments or anything I can do to get it to print more black?

[dsmith46]

What are the counts on the machine? Are they using OEM or generic toner? You could possibly try increasing the laser power in Sim 61-3.

[ZOOTECH]

Check if toner save is enabled; are test prints good?

[Hansen88]

Make sure also that the laser slit glass is clean nd possibly the inside of the laser can get dusty on the mirrors.

[boutn]

transferroller?

[moose55]

Samples?
"Set it all up?" (no clue what your "set it all up" means?)