Question about Dell 1600n All-In-One Laser Printer

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LSU erorr appear in display screen - Dell 1600n All-In-One Laser Printer

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LSU refers to the long strip of glass / encoder strip inside the top of the cartridge compartment. It could be dirty or dislodged.

Power off the printer
Open the front cover
Lightly pull out the cartridge and keep it flat
Gently swab the LSU. If part of the LSU is hanging, gently put it back in place and reconnect. Be careful not to touch anything else.
Note: If you are unable to reconnect the LSU, the printer will need service.
Put the cartridge back (again, leave it flat).
Close the front cover.
Power the printer back on.

Hope this helps.

Posted on Jul 28, 2009

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There's a colour lazer printer 510 in my office, but when, one day, i come to work, the printer screen displayed, PRINTER LSU ERROR. And what can i do about this? Please guide me. thank for your time and...


First just turn it off for ten minutes and then restart it,

There is a fault in the LSU unit.
1. Use EDC mode to test the HSYNC signal and LSU Motor.
2. Check the Harness connected to the Engine Controller and LSU.
2. Check the Harness connected to the Engine Controller and LSU. --> Refit the harness or replace it if it is damaged.
1. Use EDC mode to test the HSYNC signal and LSU Motor. 2. Check the Harness connected to the Engine Controller and LSU. --> Refit the harness or replace it if it is damaged.. 3. Replace the LSU

If the problem still happens call a repair tech.

Dec 01, 2010 | Office Equipment & Supplies

Tip

"LSU Error" message display in LCD device. SCX 4834FN


1. LSU defect - LSU LD dead due to manufacturing line over-leakage voltage

2. Mainboard Q11 devise defect - it can not output 5V voltage for controlling the LSU

Change the mainboard - if working do a firmware update you will get this on the samsung wepsite.

IF not put the old board back and replace the lsu. most of the times it is the lsu. you can also open the lsu and see if the moter is turning free. oil it a bit and sume times this sorts the problem out.

on Oct 13, 2011 | Samsung Office Equipment & Supplies

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Display reads E-7 03 error code


E7/03 is a lsu error. The LSU is the “printer head” of the printer. But instead of emitting ink, the LSU emits a laser beam, directing it at the drum of the toner cartridge. If replacing the lsu does not fix it it may be the mcu pwb, but most likely the LSU.

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LSU ERROR MESSAGE ON little 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.

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I JUST CAN SEE IN THE DISPLAY ERROR LSU. WHAT I CAN DO IT FOR FIX THE PRINTER


Sir I see the error of my printer kindly make me answer for LSU ERROR
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LSU ERROR shows in display panel


The LSU is the Laser Scanning Unit or "printhead". There is a mirror in there that spins really fast, if the mirror spins too slowly (bad motor, low voltage) it gives an error. Sounds like you would need a replacement LSU. Have the printer serviced.

Jan 02, 2008 | Dell 1600n All-In-One Laser Printer

1 Answer

LSU Error


LSU (Laser Scanning Unit) is a device inside the printer that create images on the drum.
If you see LSU Error on the display, it is indicating that there's a problem with LSU unit.

  • Unplug the power cord and plug it back in.
  • Check if the printer makes any humming noise.

If the problem persists or does not make any noise, LSU needs to be replaced.
If your unit is under warranty, please contact our tech support at 800 - 726 - 7864.
Otherwise, please find nearest Samsung Authorized Service center from the link below.

Dec 06, 2007 | Samsung SCX-4216F All-In-One Laser Printer

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