Six months ago I replaced all imaging units on our Phaser 7400 (black, cyan, yellow, magenta). These units have previously lasted 18-24 months on this machine. Black streaks are appearing on print outs and our printer technician believes we need to replace the black imaging unit. The imaging unit installed 6 months ago yields 30,000 pages and we are nowhere near this usage. Why would a black imaging unit run out so quickly???
Greetings,
There are many factors that can modify the expected lifespan of the toner, imaging unit, fuser, rollers, and other consumable parts. If you would like further information on the matter, I recommend that you call into phone support to speak with a technician on the subject.
Thanks,