Canon MP830 CD Printing problem - How to reset CDR offsets

Hi all

I have just purchased a second hand Canon MP830 and when I try to print on to CDs, the disk doesn’t go in far enough and the printing starts on approx. the last third of the disc, then prints on the tray itself.

After reading some other help on Canon disc printing, I have managed to print out the service mode printout. I notice on this the CDR details are set to “CDR (-00408, +00248)”, which I assume are some offset settings. Does anybody know if this is correct for the MP830, or if wrong, how to change them?

Hope someone out there can help.

All the best