Vertical dark bands is a symptom label documented for Xerox B230. A print-quality symptom, not a numeric fault code.
What this symptom label means
A print-quality symptom, not a numeric fault code.
Applies to: Xerox B230. Do not reuse the same code on an unrelated model.
What to try, in order
- Confirm a supported toner cartridge and test print.
- Reseat the imaging unit without touching its drum.
- If strong light enters the right side, move the printer; test again. Persistent bands need support.
After each step, repeat the action that produced the message. If it clears, you can stop.
When to stop
Stop if the instructed check does not apply, access requires disassembly, or the error persists after the documented steps.
- Avoid prolonged bright-light exposure of the imaging unit; follow the illustrated manual.
Do not buy a part from the code alone. Check the exact model and manufacturer's part list if a replacement is actually required.
Models covered by this source
Official sources
These links identify the source and its scope. Check the manufacturer page again before changing a printer setting or buying a part.
- Xerox — Xerox B230 user guide: wireless/WPS and vertical dark bands Checked 2026-11-01; official pdf text and visual
Useful next steps
Found a mismatch? Request a correction with the public source URL and exact model, without passwords or full serial numbers.