how do i fix the disappearing print on an hp clj 4550?

how do i fix the disappearing print on an hp clj 4550?

You put any a new ink videotape or a new toner videotape in it, whichever it have in it in a minute.
replace the ink.



unless there is more to it that you're not dictum, such as it prints fine for the first few lines and then fade, or something like that.