42.01B2236i

Lexmark B2236i error 42.01: Solution and Causes

The Lexmark B2236i error 42.01 appears on screen when there is a conflict between the physical paper size loaded in the tray and the configuration defined in the print system or driver. The printer detects a discrepancy in the format (e.g., trying to print A4 when the tray sensor detects Letter) and halts the operation to prevent feed errors. To fix the Lexmark B2236i error 42.01, you must physically align the tray guides and confirm they match the configuration selected in the printer menu.

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Common causes

  • 1Poorly adjusted or loose tray paper guides.
  • 2Paper menu configuration inconsistent with loaded media.
  • 3Paper size sensor obstructed by paper dust.
  • 4Print driver sent with forced size configuration.

Solutions

Quick Diagnosis

The 42.01 error is almost always resolved by manually adjusting the physical guides inside the tray. If the guides are loose, the size sensor does not report the correct value.

Step-by-Step Solution

  1. Guide Adjustment: Open the main tray and adjust the side guides exactly to your paper width, without overtightening.
  2. Paper Menu: Go to the device menu, select 'Paper Configuration', and verify that the set size matches the loaded paper.
  3. Driver Update: If using specific software, ensure the driver is configured to automatically detect the paper size.
  4. Sensor Cleaning: If the configuration is correct and the error persists, clean the tray size sensors with compressed air.

Prevention and Maintenance

Avoid loading wrinkled or irregular edge paper, as these can fool the size and presence sensor, triggering unnecessary configuration errors.

When to Call a Technician

If after cleaning the sensors and verifying the guide adjustments the error still appears, the physical size sensor (tray actuator) may be broken or out of place.

Equipment Technical Data

  • Technology: Monochrome laser printer
  • Speed: 36 ppm
  • Connectivity: Wi-Fi, USB, Ethernet
  • Compatible Consumable: B22 series toner (genuine Lexmark)
  • Capacity: 250 standard sheets
  • Suggested Maintenance: Tray sensor cleaning
  • Official Lexmark Support

Steps to follow

  1. 1

    Guide Adjustment

    Open the main tray and adjust the side guides exactly to your paper width, without overtightening.

  2. 2

    Paper Menu

    Go to the device menu, select 'Paper Configuration', and verify that the set size matches the loaded paper.

  3. 3

    Driver Update

    If using specific software, ensure the driver is configured to automatically detect the paper size.

  4. 4

    Sensor Cleaning

    If the configuration is correct and the error persists, clean the tray size sensors with compressed air.

Frequently asked questions

It is a paper size detection error indicating an inconsistency between the software configuration and what is detected by the tray.

Ensure the paper guides are correctly adjusted and they are not forcing the paper nor leaving excessive slack.

Use B22 series toner cartridges. Lexmark recommends original toner to ensure optimal print quality and prevent jams.

Yes, if the error persists, dust or paper fragments may have obstructed the sensor that detects the guide position.