The letters seem to smear if touched straight after a document has been printed from a laser
printer. From the following select the correct cause of this.

A.
The toner is running low.

B.
The cartridge must be changed.

C.
The toner has become desensitized.

D.
The fuser is not getting hot enough.

Explanation:
fuser , the part of a laser printer that melts the toner onto the medium. It consists of a hot roller and
a back-up roller. After toner is transferred to the paper, the fuser applies heat and pressure to
ensure that the toner stays on the paper permanently. This is why paper is warm when it comes
out of a laser printer.