canon mp800 doesn't copy/print in b&w

[abandoned]

My mp800 just went out of warranty & this non black & white printing
issue just arose. I use all Canon OEM cartridges. Shortly before the
printing problem, I changed a black cartridge but I don't know if the
new cartridge is the source of the color-only printing. Anyone here
have any thoughts/fixes about how to get this to work in b&w?

 

[Michael Grey]

Can you do a nozzle check in the maintenance menu?
If you are only a few weeks out of warranty give Canon support an email and
type in escalate after you receive the canned reply.
Someone should be able to take care of the problem.

 

[measekite]

Call Canon. They may replace the cart. They also have been known to
replace entire machines that have a problem even though they are just
out of warranty as long as you use OEM ink.