Canon Printer Error B203 could occur due to several reasons such as:

• Problems with empty ink cartridges
• Printhead issues
• Internal faults
• Outdated printer driver

Several solutions can resolve this error, and receiving this error doesn’t necessarily mean you need a new printer or an expert’s help.

Fix #1 – Calibrate Ink Carrier

Here’s what to do:

• Open your printer’s operational panel
• Press the ON button
• Wait until the printhead enters the replacement position. Once that happens, quickly close the panel

Fix #2 – Check if There’s a Paper Jam

Perform these steps to check if there’s a paper jam.

• Turn your Canon printer on
• Remove its power cord
• Open your Canon printer’s cover
• Next, gently move the FINE cartridge to right and take out the jammed paper slowly
• Once you’ve removed the jammed paper, check if there are any left pieces
• Finally, slowly take out the jammed paper from your Canon printer’s rear paper tray

Fix #3 – Replace Ink Cartridges

If the problem still persists, replacing the ink cartridges may help. Here’s what to do:

• Turn your Canon Printer on
• Open its cover
• Wait until the FINE cartridge comes to its replacement position
• Remove the cartridge by gently pushing the lock lever down
• Insert new cartridge and gently push it back
• Finally, push cartridge lock lever up and close the printer’s cover

Fix #4 – Run the Printer Troubleshooter

The built-in troubleshooter tool in Windows can help fix technical issues. If none of the above solutions has worked for you, the printer troubleshooter is worth a try.

Here’s what to do:

• Type “settings” in the Search bar in the taskbar and hit Enter
• Click System in the left-hand side pane
• Scroll down and click Troubleshoot in the right-hand side pane
• Click Other Troubleshooters
• Click the Run button next to the Printer entry
• Wait for Windows to identify and troubleshoot the underlying issue

If Windows Troubleshooter couldn’t identify an issue, you should consider updating the printer driver. Outdated printer driver can cause various issues, including the Error B203.

Fix #5 – Update the Printer Driver

You can update the Canon printer driver manually or automatically. The automatic method is not only much simpler but also much faster. Nevertheless, we have listed both methods, so you can pick the one that you suits you better.

Update the printer driver manually

• Type “device manager” in the Search bar in the taskbar and hit Enter
• Locate and expand the Printer category
• Right-click your Canon printer and then select Update driver
• In the next Window, click the “Search automatically for drivers” option and wait for Windows to install the latest printer driver

Update the printer driver automatically

Download and install a reliable driver update software tool and update the printer driver with just a single click.