On my Canon MP530 multifunction printer I have the Check cartrige U052 error message....

Solution 1:

• Remove and replace the cartridges.

Solution 2:

• Insert new cartridges

Solution 3:

• Reseat the print head to correct print issues or clear an error.

Solution 4:

• The print head is broken and it must be changed by a new one.

Source:
http://fix-your-printer.blogspot.com/2010/11/error-u052-on-canon-printers.html

U052 is a temperature sensor in the works below the cartridges. Canon can ship you the part; it's not the inks cart, but then it's not for me to say 5 minutes with the power off or 20 with either a solvent cartridge (especially on any colors with stripe dropouts) or cleaning the works and reseating flex cables won't fix it. (Take it to a Canon shop per any surviving repair warrants; it's serious enough.)

Remove all ink tanks (printer is on), remove printer ink cartridge carrier head. clean head with alcohol wipes thoroughly, not contacts. Push in gently print cartridge pistons on cartridge carrier. Reseat print cartridge and ink tanks, replace any very low ink one's. turn off printer, unplug electrical, remove usb on printer and computer. plug all back in, turn on. Alarm and message should disappear. Clean and realign with software.

The dreaded U052 error means that the 'chip' fitted to the Cartridge is not responding .. Canon (like all printer mfgs) makes all it's profit from selling Ink .. so they fit these chips to try to prevent you refilling or using a 'compatible' replacement cartridge

You have to move the chip from the Canon cartridge to the 'compatible' and (it seems) the chips are particularly sensitive to static / damage .. many people end up blowing the chips during the swap over .. or even when fitting the original genuine cartridges to a brand new unit for the first time ...

If the unit is brand new, take it back and demand a replacement ... if you have just swapped over the chip onto a compatible cartridge, you can try buying a genuine Canon cartridge (which will have a new chip) = hopefully that will do the trick

This problem can be resolved by either of 2 ways:
1. Installing the Print Head and Ink Tanks 2. Reseating the MP530 print head

On my Canon MP530 multifunction printer I have the Check cartrige U052 error message....

Reseat the Print Cartridge. Go to Canon site (see below) and search for U052 error. I followed the directions with pictures and the error went away. http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&tabact=SupportDetailTabAct&fcategoryid=238&modelid=13371

Im having this same problem and i dont know what to do either. Im calling canon in the morning at 8am to see what to do and i will write back to help you if it helps mine.

There are possibilities that you might not have installed the ink cartridges properly or the drivers might not be working.

Here is a link for a manual click here
Here is a link for drivers click here