Samsung ML-4550 Understanding the status LED, Understanding display messages, Troubleshooting

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>