Can you keep using it?
Can you keep using it?
Contact customer support if any of these apply
- !5B00 is displayed at all, because Canon treats it as a service path.
- !The printer will not complete startup after one clean power cycle.
What to check first
Step-by-step checks
- 1
Safe first step
Turn the printer off and stop repeated retries.
Start with the official recovery step before moving on to parts or deeper servicing.
- 2
Escalate
Record the support code and model information.
- 3
Escalate
Contact Canon support or a repair center.
Background
What this message usually means
Canon uses support code 5B00 for a printer error on the TS3300 series that Canon routes to service. This is a stronger stop-and-escalate fault rather than a normal user maintenance warning.
Before the message
What users usually notice first
Messages like this often appear after the printer fails one of its normal startup, supply, or paper-path checks and cannot return to ready state cleanly.
Diagnosis
Likely causes
The printer detected an internal maintenance or service-stop condition.
A deeper internal fault blocked normal operation.
The device cannot recover from its current error state through normal user steps.
Service
When service or replacement is more likely
- -This is not the same as a low-ink or paper-size warning and should not be treated as one.
Avoid wrong turns
Common misreads of this message
- -Treating the message like a confirmed failed part instead of a support clue about which system has stopped the printer.
- -Assuming any supply-related wording means the next step is automatically to buy a cartridge, toner, drum, or printhead.
- -Assuming no physical path issue exists just because no full sheet is visible at first glance.
See also
Related codes in this family
Explore more
More Canon printer families
Read this next
Helpful guides for this problem
Guide
When a printer says paper jam but there isn't one
What a false paper-jam warning usually points to, from hidden scraps and tray issues to faults that are no longer simple jams.
Guide
How to identify your Canon printer family before using an error code page
How to work out the right Canon family first so the code page you open is actually talking about your printer.
Guide
How to tell if a printer fault is a cartridge issue or a service issue
How to separate ordinary cartridge or toner trouble from the kind of printer fault that usually points to real service.
Boundary
When to stop troubleshooting and move to support
If the same message returns immediately after one careful recovery attempt or the printer cannot reach ready state, stop there and use the family-specific support path.
Keep browsing
Where to go next
Source notes
Canon's official 5B00 page says a printer error requiring service has occurred and directs users to contact Canon support.
Built around Canon TS3300-series official support-code guidance. Exact wording can vary a little by regional model name, but the core support-code meaning stays close across the family.
Printer error codes can vary a little by firmware, region, and exact model variant. Use this guide as a family-level starting point and stop if the next step would require disassembly or service-mode changes.
Known family variants: TS3310, TS3320, TS3340, TS3350, TS3351, TS3352, TS3355, TS3360, TS3365, TS3370, TS3370S, TS3380, TS3390, TS3391, TS3392
Last reviewed: 2026-04-12
Reference: Open reference