Understanding the status LED

Status

 

Description

 

 

 

 

Off

 

The printer is off-line and cannot print.

 

 

The printer is in power save mode. When

 

 

 

data is received, it switches to on-line

 

 

 

automatically.

 

 

 

Green

On

The printer is on-line and can receive data

 

 

from the computer.

 

 

 

 

 

Blinking

When the backlight blinks slowly, the printer

 

 

 

is receiving data from the computer.

 

 

• When the backlight blinks quickly, the printer

 

 

 

is printing data.

 

 

 

 

Red

On

The toner is totally exhausted. Remove the

 

 

 

old toner cartridge and install a new one.

 

 

 

See page 8.5.

 

 

A paper jam has occurred. To solve the

 

 

 

problem, see page 9.1.

 

 

The top cover is open. Close the top cover.

 

 

There is no paper in the tray. Load paper in

 

 

 

the tray.

 

 

• The toner cartridge installed is not a genuine

 

 

 

cartridge, and you selected Stop at the

 

 

 

NonGenuine Toner prompt. See page 9.6.

 

 

The lifespan of the toner cartridge is

 

 

 

reached, and you selected Stop at the

 

 

 

Toner Exhausted prompt. See page 9.6.

 

 

The printer has stopped printing due to a

 

 

 

major error. Check the display message.

 

 

 

See page 9.6 for details on the meaning of

 

 

 

the error message.

 

 

 

 

 

Blinking

A minor error is occurring and the printer is

 

 

 

waiting for the error to be cleared. Check the

 

 

 

display message. When the problem is

 

 

 

cleared, the printer resumes printing.

 

 

The toner cartridge is low. Order a new toner

 

 

 

cartridge. You can temporarily improve print

 

 

 

quality by redistributing the toner. See page

 

 

 

8.4.

 

 

 

 

Understanding display messages

Messages appear on the Smart Panel program window or the control panel display to indicate the printer’s status or errors. Refer to the tables below to understand the messages’ meaning and correct the problem if necessary. Messages and their meanings are listed in alphabetical order.

Note

• When you call for service, it is very convenient to tell the service representative the display message.

Message

Meaning

Suggested solutions

 

 

 

ADC Not

There is a problem

Unplug the power

Confirm Error

in your printer

cord and plug it back

system.

in. If the problem

 

 

 

persists, please call

 

 

for service.

 

 

 

Door Open

The top cover or rear

Close the cover until

 

cover is not securely

it locks into place.

 

latched.

 

 

 

 

Duplex Jam 0

Paper has jammed

Clear the jam. See

Check Inside

during duplex

page 9.4.

 

printing.

 

 

 

 

Duplex Jam 1

Paper has jammed

Clear the jam. See

Open/Close Door

during duplex

page 9.5.

 

printing.

 

 

 

 

Fuser Door Open

The fuser door is not

Open the rear cover

 

securely latched.

and close the fuser

 

 

door until it locks into

 

 

place.

 

 

 

Fuser is Cleaning

Your printer is

Please wait a few

 

printing a Cleaning

minutes.

 

sheet now.

 

 

 

 

Inner Temp. Open

There is a problem

Unplug the power

Cycle Power

in your printer

cord and plug it back

system.

in. If the problem

 

 

 

persists, please call

 

 

for service.

 

 

 

Inner Temp. Error

There is a problem

Unplug the power

Cycle Power

in your printer

cord and plug it back

system.

in. If the problem

 

 

 

persists, please call

 

 

for service.

 

 

 

9.6 <Troubleshooting>

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Samsung ML-4550, ML-4551ND manual Understanding the status LED, Understanding display messages

ML-4550, ML-4551ND specifications

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