Question about Samsung SCX 4521F All-In-One Laser Printer
LSU message always appear on screen when photocopying
The LSU error stands for Laser Scanner Unit error. The probable cause/s:
The Polygon motor in the LSU does not rotate.
The LSU’s laser beam is functioning properly.
What you can do:
Try to unplug the machine for a couple of minutes or maybe a little longer and then plug everything back in. Power on and then test.
Posted on Feb 09, 2010
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
Tips for a great answer:
Nov 03, 2010 | Office Equipment & Supplies
Apr 30, 2010 | Xerox WorkCentre M20i All-In-One Laser...
Apr 24, 2010 | Samsung SCX 4200 All-In-One Laser Printer
Dec 17, 2009 | Xerox Phaser 8500/DN Printer
Sep 15, 2009 | Samsung SCX 4521F All-In-One Laser Printer
Jul 28, 2009 | Dell 1600n All-In-One Laser Printer
Jul 26, 2008 | Office Equipment & Supplies
Aug 01, 2007 | Sharp AR 201 Copier
845 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: