121.02CS943de

Lexmark CS943de error 121.02: Registration failure

The Lexmark CS943de error 121.02 is a warning that the paper did not reach the registration sensor within the expected time after leaving the tray. This error suggests that the feeding is not consistent, which can wrinkle paper or leave off-center prints. To resolve the error 121.02 in Lexmark CS943de, we must inspect the state of the feed rollers.

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Common causes

  • 1Worn pickup rollers.
  • 2Paper improperly placed in the tray.
  • 3Registration sensor dirty due to fiber accumulation.
  • 4Electronic failure in the registration solenoid.

Solutions

Quick Diagnosis

If you hear a slight slip before the error appears, the pickup rollers are dirty. If paper always jams at the same spot, a piece of paper is obstructing the path.

Step-by-step Solution

  1. Tray removal: Remove the affected paper tray.
  2. Roller cleaning: Clean the rollers with a rubber cloth or lint-free cloth dampened with distilled water.
  3. Correct loading: Verify that the paper is properly aligned against the tray guides.

Prevention and Maintenance

Use lint-free paper. Accumulated paper fibers are the main cause for rollers to lose their traction.

When to call a technician

If the rollers are clean and the error persists, the registration solenoid might be failing electronically.

Equipment Technical Data

Lexmark CS943de error 121.02: Registration failure | Vimazdev