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That is very obviously an error message relating to the CD tray or CD printing area of your printer.
A reset of the printer, and checking that the area of the CD tray is closed, would both be advisable.
A reset of the printer would mean, turning it Off, and unplugging it from the power, for at least 10 minutes.
OK. Open it out. Make sure nothing is getting in the way, and then try to close it gently but firmly.
Has this printer ever worked? I take it that it is new, but how new, how long ago was it bought?
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