Hi, I have a trouble with a LVX-4 from Canon.

have scanned for trouble code --vehicle went into limp mode and now protection mode [protecting you and itself --https://www.schworervolkswagen.com/blog/how-to-fix-epc-light-on-a-volkswagen/

Did you try doing a hard reset to the device

Disable Protected Mode in Internet Explorer:
Protected mode is enable by default and may interfere with AOL Mail. If you're continuing to have trouble accessing mail, turn Protected Mode off:
1. Click Tools.
2. Click Internet Options.
3. Click the Security tab.
4. Deselect "Enable Protected Mode."
5. Restart Internet Explorer and sign in to AOL Mail again.

hi! this is Alex Walker expert to help you call me on 518-348-9393 Thank you

When you clean the print heads, the ink has to go somewhere. This error code is, "waste pads are full". This is typically something that you take your printer to a service center for.

I did find some instructions for you, though:
How to Replace the Ink Absorber on Canon Printer eHow

sol1) In service mode copier- function- clear- error. (Service mode can be accessed by pressing additional functions- 2-8-additional functions in quick succession).This should help

OR
Sol 2) Open the display unit of your copier and take it for dry soldering.
Note:- expert help may be required for step 2. don't try yourself.

Probably the copier is iR C5185i
- E004 = Fixing unit protection circuit trouble
-  0401 = Check the connection of the connectors of the relay PCB, the IH power supply, the fixing thermoswitch, and replace the fixing unit (fixing
thermoswitch OFF), the relay PCB, and the IH power PCB (blowout of the
FU261).
In the service mode, clear the error by selecting COPIER > FUNCTION >
CLEAR > ERR.
You need a canon technician to resolve this problem.

Hi there, did you check the card itself? SD cards have a locking switch on the side. Move the switch from locked to unlocked. Put it back in the camera and see if that helps.

Rob

The units in the protect mode because the Microprocessor detects a large current being drawn by the amp. section of the reciver. This is a solid state unit and there are no user replaceable parts inside this unit. Unless you know how to trouble shoot sloid state devices then you should seek a pro to assist you with this repair. GOOD LUCK