Xerox Fault 12-122-00 / 312.122.00
12-122-00 is a Xerox fault scoped to AltaLink C8030/C8035/C8045/C8055/C8070 and EC8036/EC8056. The compile-exit sensor did not clear as expected, indicating a finisher output-path jam. Similar-looking Xerox codes on another platform should not be assumed to mean the same thing.
Error meaning
The compile-exit sensor did not clear as expected, indicating a finisher output-path jam.
This meaning is tied to the reviewed family/platform and subsystem below; do not reuse the number by itself on a different printer family or protocol.
Applies to
AltaLink C8030/C8035/C8045/C8055/C8070 and EC8036/EC8056
- AltaLink C8030
- AltaLink C8035
- AltaLink C8045
- AltaLink C8055
- AltaLink C8070
- EC8036
- EC8056
Common formatting
These are formatting/lookup aliases for this reviewed condition, not separate error pages.
- 12-122-00
- 312-122
- 312.122.00
What usually causes it
- Paper did not clear the compile/finisher exit sensor.
- Output may be blocked by curled, stacked, or jammed sheets.
- A scrap can remain in the finisher output path after a previous jam.
What to try
Remove output from the finisher
Clear stacked or curled sheets that could block the exit.
Follow the panel's finisher jam path
Remove any visible jammed sheet or scrap from user-accessible areas.
Close the finisher covers
Make sure all doors are fully seated.
Retry the original finishing job
If the sensor clears, resend the job and confirm pages exit normally.
After each corrective action
Retry the same operation that produced 12-122-00. If it now works, stop there rather than changing unrelated printer, network, or service settings.
If the code returns
If the output path is clear but 12-122-00 immediately returns, the exit sensor or finisher mechanism likely needs service.
When service may be needed
Xerox hardware procedures vary by family. Stay with user-accessible paper/supply actions described for the reviewed models; if the fault returns after those checks, use the exact code and model when contacting support.
Continue with guided troubleshooting
If the printer still is not working after the reviewed checks, carry this verified error context into the guided troubleshooter.
Related information
Verified source
Official Xerox support article for the exact fault and product family; scope is kept per article.