KM-C3225,specs in solid areas

[Copydoc Ric]

I've come accross a problem on a KM-C3225 copier. When printing to the copier,envelopes, the heavy black letterhead like return address has spects or lite dots in bold print. When I make copies of a test chart onto a envelope the blacks are solid. I should also mention that the envelopes are printed in the full color mode, and the test samples were in black only. Thanks for help, Ric

[bsm2]

is the bypass media set for envelopes?and if you are running color thats about .10 for each envelopes printed
not very cost effective

[Copydoc Ric]

Yes the customer is printing in color on envelopes.

[blackcat4866]

I'm not terribly surprised. Have you ever had a double feed and the image appeared to have poor transfer? That's because additional transfer is required for thicker (read: double layers) of paper.

With envelopes there are areas with 2, 3, and sometimes 4 layers of paper. How do you compensate with transfer voltage when the thickness of the paper varies?