Troubleshoot "Bump Exceptions" Error on xTool Apparel Printer
Updated May 7,2025
Updated May 7,2025

Issue description

During xTool Apparel Printer operation, you may receive an error message stating "Bump exceptions". This message may appear as a pop-up window in xTool Creative Space (XCS) software or directly on xTool Apparel Printer's LCD panel. The error indicates that the system is unable to correctly detect the encoder strip.

  • Please follow these steps to identify and resolve the issue.
xTool Apparel Printer Error Message: Bump Exceptions

 

Common causes

  • Accidental Impact: A physical impact may trigger the collision sensor.
  • Print Carriage Interference: The print carriage might jam the PET film during high-speed lateral movement.
  • Oven Power/Connectivity Issues: xTool OS1 Automatic Shaker Oven may be powered off or not properly connected.
  • Abnormal Film Fork-Lifter Status: The oven’s film fork-lifter may be malfunctioning.
  • Film Issues: The PET film may be uneven, bulging, or misaligned.
  • Misalignment with Guide Line: The film may not be properly aligned with the right-side white marking line.
  • Dirty or Gitching Sensors: The film hole sensor might be dirty or experiencing glitches.
  • Guide Plate Mispositioning: Improperly adjusted guide plates on either side of the film path.
  • Incorrect Assembly: The printer and the oven may not be assembled correctly.
  • Poor film splicing;
  • Bump sensor malfunction;

 

Troubleshooting procedure

Please identify which scenario best describes when the error occurred.

 

Scenario A: Error occurs during first-time setup

If this error appears while you are setting up your device for the very first time:

Complete the Initial Configuration

  • Follow all on-screen prompts on the printer's LCD display to finish the first-time setup.

Recalibrate the System

In xTool Creative Space software:

  • Navigate to: Device settings > Calibration > Automatic calibration
  • Follow the prompts to complete the calibration process. This recalibration after the initial setup often resolves encoder errors that occur during the setup phase.

 

Scenario B: Error occurs after accidental bump (No film jam)

If you know the error appeared immediately after accidentally bumping or knocking the printer, AND you have confirmed the print carriage is not jammed against the PET film:

  1. You can usually click the "Confirm" button on the error message pop-up window to acknowledge and dismiss the error.
  2. Observe the printer during the next operation to ensure it functions normally. If the error repeats without a bump, proceed to Scenario C.

 

Scenario C: Error occurs during regular use

If the error occurs during a print task, or repeats without an obvious accidental bump, follow these steps:

Print carriage jams the PET film during high-speed lateral movement.

STEP1: Address jammed film

If the print head jams the film, you may also receive a "Film hole detection error" message.

Check for Print Head Jamming

  • Examine the film and print head for signs of jam.
  • Trim any wrinkled or creased sections of the PET film using scissors to ensure the film is flat and smooth.

Carriage Reset & Device Reboot

  • Reset the Carriage: Tap the Crosshair icon on the printer’s control panel to reset the print carriage.
  • Reboot the Printer: After resetting the carriage, reboot the device. This step is essential because film jamming may lead to motor synchronization issues.

Perform Standard Print Head Auto-Cleaning

  • On the printer's LCD panel, tap step by step to navigate to the cleaning function: Maintenance > Clean > Start
  • Complete the print head cleaning process according to the on-screen instructions. Allow the cleaning cycle to finish completely.
  • Learn how to perform standard print head auto-cleaning by following the video tutorial below.

After Cleaning

  • Once cleaning is complete, or if there was no jammed film, proceed to Step 2.

 

STEP2: Check shaker oven status

  • Ensure xTool OS1 Automatic Shaker Oven Machine is powered on.
  • Check the device connection status in xTool Creative Space (XCS) software. The panel on the right should show "Automatic shaker oven machine" connected.
  • If not recognized:
    • Check the data cable connection between the printer and oven for secure contact.
    • If the cable is securely connected but the oven is still not detected, the data cable itself might fail. Hence, replace the data cable.
    • If the cable was disconnected, connect it properly and check XCS again.
  • If the oven is powered on and correctly detected in XCS, proceed to Step 3.

*To request a replacement, please contact xTool Customer Service by submitting a request in the Help Ticket section below. Select Buy after-sales materials under the After-sales Issue tab to place your replacement order.

 

STEP3: Properly adjust PET film alignment

Improper film loading can cause jams that trigger the bump sensor.

  • Apply Tension: Gently pull the film taut (tight) as you guide it. Ensure it is not loose or slack during alignment.
  • Position on Guide Line: Align the film edge precisely with the white marking line.
    • The film must not overlap the white marking line.
  • The film edge must remain within ≤1 mm of the line (not shifting left or right).

Video Reference: For visual guidance on proper PET film adjustment, refer to the video tutorial: Replace the Brackets & Adjust the Ball Bearings on xTool Apparel Printer

  • Specific section: 1:20-1:40 minutes
  • If the issue persists after film alignment, proceed to Step 4.

 

STEP4: Inspect both guide plates

  • Examine the guide plates on both sides of the film path.
  • Ensure that the holes on the guide plates cover roughly half of the film edge. The pressure applied should be balanced—neither too tight nor too loose.

If the guide plates are correctly positioned, proceed to Step 5.

 

STEP5: Perform “Device self-check”

  • Restart both devices:
    • Power off the printer and oven; await 30 seconds before rebooting.
  • Run “Device self-check”:
    • On the control panel of the printer, tap Maintenance > Device self-check > Start and follow on-screen prompts.
  • If the detection test fails:

 

Still experiencing issues?

Should the issue persist after completing the preceding steps, submit a ticket via the "Submit a Ticket" button in the "Help Ticket" section below. The standard response time for xTool Customer Service is one business day.

For a prompt resolution, please include the following details:

  • Issue Description: A detailed explanation of the observed problem.
  • Video Evidence: Attach a video demonstrating the issue, where applicable.
  • Troubleshooting Performed: Any troubleshooting steps you have already attempted, along with their results.

This information is crucial for xTool technical support engineers to provide timely assistance.

 


 

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