Service Error B200

Canon b200 Error, Troubleshooting 
Replace ink cartridges if they are empty 
 find out if the ink cartridges are empty. When in doubt, try a new cartridge to fix canon error b200.
A data cable of print head is open 
Did you just replace an ink cartridge? Perhaps you shifted a data cable to the print head.
Bad power adapter 
Is the power supply (internal or external) failing to generate enough electrical juice to get the resistors hot enough for the laws of thermodynamics to occur (creating a bubble of ink).
Replace printhead if it is damaged or not a part of the ink cartridge 
It should be noted that for the Canon printers that use a separate (not integrated) printhead, there is a finite lifespan to the dozens of microsizedbaby bottle nipples. Just like the kids bottle, the rubber/silicon nozzle does wear out.
Turn off the printer for some time 
After making heavy usage of a Canon inkjet printer, consider getting a coffee break, while giving your printer a break too. This will avoid saturating the printhead with heat, prolonging useful service life.
Update the printer driver to fix Canon error b200
If you have followed all this and you're still NOT OK. From the printer menu (not computer) push the buttons to get a demo or test page. If everything is hunky-dory when you do this, however, you get the service error code B200 when you try to produce something productive, odds are good, the print driver the computer is using has gone south (corrupt).
 When printing on a network, a corrupt printer driver can spread like an unwanted virus. Depending on the network, a driver that has gone rogue may be seen as an updated driver, which network will 'helpfully spread' as an update.