Hi, I need help with one HP Color LJ 2600n, I have a problem whit laser intensity when I print, I tried clean the escanner unit, I tried all the resets, cold reset, nvram reset, etb clean, all calibrations, change all boards and nothing, in the test page, I have in down part, in "dh" all the values are "0" ¿how i can change this values to fix the laser intensity?
Thanks!