LaserJet 8150 Gray Printing

[agates]

On the first few pages printed, there is light background on the paper. The bigger the print job, the worse the background until it is completely noticeable. The fuser and toner cartridge has been replaced. No change at all. I'm thinking transport roller. What do you think?

[jim]

If you are using aftermarket toners - that is the problem. If that is not the case, then I suggest either the transfer roller or high-voltage power supply be replaced.