Samsung ML-4551ND, ML-4550 Troubleshooting checklist, Tips for avoiding paper jams, Duplex jam

Duplex jam 1

1Open the rear cover.

2Gently pull the jammed paper straight up.

3Close the rear cover.

4Open and close the top cover. The printer will resume printing.

Tips for avoiding paper jams

By selecting the correct media types, most paper jams can be avoided. When a paper jam occurs, follow the steps outlined on page 9.1.

•Follow the procedures on page 5.5. Ensure that the adjustable guides are positioned correctly.

•Do not overload the tray. Ensure that the paper level is below the paper capacity mark on the inside wall of the tray.

•Do not remove paper from the tray while your printer is printing.

•Flex, fan, and straighten paper before loading.

•Do not use creased, damp, or highly curled paper.

•Do not mix paper types in a tray.

•Use only recommended print media. See page 5.1.

•Ensure that the recommended print side of print media is facing down in the tray, or facing up in the multi-purpose tray.

Troubleshooting checklist

If the printer is not working properly, consult the following checklist. If the printer does not pass a step, follow the corresponding suggested solutions.

Condition		Suggested solutions
Make sure that the	•	If the Status LED is off, check the power
Status LED on the		cord connection. Check the power switch.
control panel lights		Check the power source by plugging the
green and Ready is		power cord into another outlet.
shown on the	•	If the Status LED lights red, check the
display.		display message. See page 9.6.
Print a demo page	•	If a demo page does not print, check the
to verify that the		paper supply in the tray.
printer is feeding	•	If the paper jams in the printer, see page
paper correctly. See		9.1.
page 2.8.	•	If an error message appears on the
		display, see page 9.6.
Check the demo	If there is a print quality problem, see page
page to see if it	9.11.
printed correctly.
Print a short	•	If the page does not print, check the cable
document from a		connection between the printer and the
software application		computer.
to verify that the	•	Check the print queue or print spooler to
computer and		see if the printer has been paused.
printer are	•	Check the software application to ensure
connected and are		that you are using the proper printer driver
communicating
		and communication port. If the page is
correctly.
		interrupted during printing, see page 9.9.
If completing the	•	“Understanding the status LED” on page
checklist does not		9.6.
resolve the printer	•	“Understanding display messages” on
problem, check the		page 9.6.
following	•	“Solving general printing problems” on
troubleshooting		page 9.9.
sections.	•	“Common Windows problems” on page
		9.13.
	•	“Common PostScript problems” on page
		9.13.
	•	“Common Linux problems” on page 9.14.
	• “Common Macintosh problems” on page
		9.14.

9.5 <Troubleshooting>