Error Message

Cause

Action

Change Parts

It is time to replace the laser unit.

Call Brother Customer Service to replace the

Laser Unit

 

laser unit.

 

 

Change Parts

It is time to replace the paper

Call Brother Customer Service to replace the

PF Kit MP

feeding kit for the MP tray.

PF Kit MP.

 

 

Change Parts

It is time to replace the paper

Call Brother Customer Service to replace the

PF Kit 1

feeding kit for Tray 1.

PF Kit 1.

 

 

Change Parts

It is time to replace the paper

Call Brother Customer Service to replace the

PF Kit 2

feeding kit for Tray 2.

PF Kit 2.

 

 

Change Parts

The waste toner box is almost full.

Be ready to replace the waste toner box. (See

Waste Toner Box

 

Replacing the waste toner box on page 188.)

 

 

Check Paper Size

The paper in the tray is not the

Load the correct size of paper in the tray and set

 

correct size.

the “Paper Size” (Menu, 1, 3) and “Tray Use”

 

 

(Menu, 1, 7). (See Paper size on page 23, Tray

 

 

use in copy mode on page 23, Tray use in fax

 

 

mode on page 24 and Tray use in print

 

 

mode on page 24.)

 

 

 

Comm.Error

Poor telephone line quality

Send the fax again or connect the machine to

 

caused a communication error.

another telephone line. If the problem continues,

 

 

call the telephone company and ask them to

 

 

check your telephone line.

 

 

 

Connection Fail

You tried to poll a fax machine

Check the other fax machine’s polling setup.

 

that is not in Polled Waiting mode.

 

Cooling Down

The temperature of the drum unit

Make sure that you can hear the fan in the

Wait for a while

or toner cartridge is too hot. The

machine spinning and that the exhaust outlet

 

machine will pause its current

isn't blocked by something.

 

print job and go into cooling down

If the fan is spinning, remove any obstacles that

 

mode. During the cooling down

 

surround the exhaust outlet, and then leave the

 

mode, you will hear the cooling

 

machine turned on but do not use it for several

 

fan running while the LCD shows

 

minutes.

 

Cooling Down, and

 

If the fan is not spinning follow the suggestions

 

Wait for a while.

 

 

below.

 

 

Turn off the machine's power switch and then

 

 

turn it on again. If the error message continues

 

 

leave the machine for several minutes and then

 

 

try it again. (The machine can be turned off for

 

 

up to 4 days without losing faxes stored in the

 

 

memory.)

 

 

 

Cover is Open

The front cover is not closed

Close the front cover of the machine.

 

completely.

 

Cover is Open

The back cover is not closed

Close the back cover of the machine.

 

completely.

 

Disconnected

The other person or other

Try to send or receive again.

 

person’s fax machine stopped the

 

 

call.

 

 

 

 

134

Page 150
Image 150
Brother MFC-9840CDW manual Waste Toner Box, 134