Hi my name is ***** ***** I will be the expert working with you today to help and resolve the problem you have posted.
I am sorry to know that you are facing problem with your printer
The error b200 indicates a fault with the printhead
please try the below steps
remove the cartridges and turn off printer
unplug power cord and keep the ON button pressed for 10 secs
remove the printhead and clean the golden contacts with the cotton swab and little alcohol
clean the contacts on the cartridges as well
wait for 10 minutes and then turn on printer and reinsert the printhead and ink
if still the error b200 repeats then there is a possible fault with the printhead
the printhead would need to be replaced in such a case.
if within warranty you may contact CANON to get the same done
else you may get the unit serviced through any local printer repair store
i hope you understand In case of hardware failure i can tell you what part has faulted.but cannot make a bad part work again
let me know if you have any questions
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