Canon Severity: high

Canon B203 Error Code - Meaning, Solution & Repair Guide

Device Type: printer
Device Usable: NO (Device locked out / non-functional)
Error Code: B203

What Does the Canon B203 Error Mean?

Internal mechanism lock or encoder strip misalignment, usually due to a paper shred or foreign object blocking the carriage path.

Repair vs. Replace Decision

❌ Recommended Action: Repair with Caution / Replace if Old
Clean the encoder strip and clear any paper debris. Avoid professional repairs if carriage motor is burned.

How to Fix Canon B203 (DIY Methods)

Follow these step-by-step diagnostic and repair instructions to resolve the error. Success rates are compiled based on technician repair logs.

1 Clean the carriage encoder strip
55% Success Rate
Time: 15 mins
Difficulty: Medium
2 Check and clear paper jams/debris
40% Success Rate
Time: 10 mins
Difficulty: Easy
3 Perform a deep system reset
25% Success Rate
Time: 5 mins
Difficulty: Easy