Xerox AltaLink C8130/C8135/C8145/C8155/C8170 — 77-109-00
Xerox 77-109-00 means paper is holding the Exit Sensor 2 jam state. The guidance here is specific to AltaLink C8130/C8135/C8145/C8155/C8170 and the Output/exit sensor operation.
Error meaning
Paper is holding the Exit Sensor 2 jam state.
This interpretation is tied to the reviewed family/platform and subsystem. Do not reuse the code by itself on another printer family.
Applies to
AltaLink C8130/C8135/C8145/C8155/C8170
- AltaLink C8130
- AltaLink C8135
- AltaLink C8145
- AltaLink C8155
- AltaLink C8170
Common formatting
These are lookup/formatting aliases for this reviewed condition, not separate pages.
- 77-109-00
- 377-109
- 377.109.00
What usually causes it
- Paper is holding the second exit-sensor area in a jam state. The problem is at the output side of the paper path, after most image formation has already occurred.
- The exact condition recorded for this code is: Paper is holding the Exit Sensor 2 jam state.
- Inspect the accessible output and exit path for a sheet, torn corner, label fragment, or curled media that has not fully cleared. Remove paper in the documented direction and make sure output covers close normally.
What to try
Check the condition this code actually names
Remove accessible paper/obstructions from the output path and retry.
Isolate the affected part of the workflow
Inspect the accessible output and exit path for a sheet, torn corner, label fragment, or curled media that has not fully cleared. Remove paper in the documented direction and make sure output covers close normally.
Run a controlled confirmation test
Print a single simple page and watch whether it exits completely. If the page reaches the output area and stops in the same place, preserve that location rather than repeatedly opening unrelated trays.
After each corrective action
Retry the original operation that produced 77-109-00. If it works, stop there rather than moving into unrelated troubleshooting.
If the code returns
If 77-109-00 appears with no visible sheet, note whether the output sensor area was recently involved in a jam and whether the code is present immediately at startup.
When service may be needed
Do not insert tools into the exit sensor path or dismantle the finisher/output assembly. A stuck sensor state after accessible paper is cleared requires service.
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 AltaLink C8130/C8135/C8145/C8155/C8170 support article.