Guided check
0/3 checkedMatch the symptom, then work through the safe checks.
1. What best matches what you observe?
2. Complete only the checks that are safe for you.
Stop if the carriage binds or the strip is damagedForcing the carriage can damage gears and sensors.Professional
3 user-level checks are available in this guide.Stop immediately if any warning condition applies.
Show stop conditions
- The carriage requires force to move
- The encoder strip is detached, scratched, or heavily contaminated
Likely causes
- Paper, label material, or packing tape blocks the carriage
- The cartridge or printhead is not seated correctly
- The encoder strip is dirty, displaced, or damaged
- The carriage motor or mechanism is failing
Quick checks, in order
Power off and unplug the printer
Wait until movement stops.
Inspect the paper and carriage paths
Remove visible scraps and any shipping material.
Check cartridge seating as the manual allows
Do not touch or wipe the transparent encoder strip casually.
Stop if the carriage binds or the strip is damaged
Forcing the carriage can damage gears and sensors.
What happens when the printer starts?
The carriage moves and hits an object
Remove the obstruction without forcing the mechanism.
The carriage does not move
A lock, motor, belt, sensor, or control fault may need service.
The error began after moving the printer
Check for shipping tape, displaced parts, and loose cartridges.
Stop and get qualified help when
Do not continue troubleshooting if any of these apply:
- The carriage requires force to move
- The encoder strip is detached, scratched, or heavily contaminated
Official support and model manuals
Use the full model number from the rating label. The manufacturer manual is the deciding reference when codes differ by region or product family.
Frequently asked questions
What does Canon 5100 mean?
On many models it indicates abnormal carriage movement or positioning.
Should I oil the carriage rail?
Not unless Canon’s service information for the exact model specifies a compatible lubricant.
Did this guide move you closer to a solution?The response is stored on this device and sent to aggregate analytics.