The Overall Surface of the Paper Is Printed in Black Completely

Perform one of the following solutions according to the cause.

<Cause 1> The drum in any of the toner cartridges has deteriorated or is damaged.

Solution
Replace the toner cartridge with a new one.
"Toner Cartridge Replacement"

<Cause 2> A problem is occurring inside the printer.

Solution
If <Ennn-nnnn> appears in the display, follow the procedure in "The Service Call <Ennn-nnnn> Appears in the Display ("n" Represents an Alphanumeric Character)" in "The Message Indicator Is On" to solve the problem.
051K-0F1