Brother classifies Print Unable ## as a mechanical problem. The two-digit suffix helps service identify the affected system.
What Print Unable ## means
Brother classifies Print Unable ## as a mechanical problem. The two-digit suffix helps service identify the affected system.
What you may notice
- The display shows Print Unable ##
- The print job stops
- The status light may change
- The message returns after the cover is closed
Most likely causes
- 01A temporary mechanism fault
- 02A paper-path obstruction
- 03A motor or sensor problem
- 04A fuser fault
- 05A control-board error
Safe checks, in order
Start with the simplest non-invasive check. Stop as soon as the error clears; repeated resets can hide a condition without correcting it.
Record the full code
Write down both digits after Print Unable.
Check for visible jams
Remove only paper accessible through normal covers.
Restart once
Turn the printer off, wait several minutes, and turn it on again.
Stop if it returns
Do not repeat resets or disassemble the printer.
Know where to stop
Mechanical faults can involve hot fuser parts and moving gears. Do not open service panels.
When to call a technician or support
Contact Brother if the message returns after the approved steps, the printer makes abnormal noise, or a cover, sensor, drum, or fuser component is damaged.
When you call, have the exact product or vehicle model, model year where relevant, the complete code or symbol, and when it appeared.
Where this information came from
We use the manufacturer's current published guidance as the starting point, then organize it into a safer, beginner-friendly sequence.
Brother manual — error and maintenance messages Source last checked August 16, 2026. Manufacturer instructions and model manuals take priority over this independent summary.