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Unable to print shipping labels on the SendPro CX Series

Check the default label size, connect the label printer USB cable to a different USB port, reboot the device and ensure the labels are loaded correctly if you are unable to print shipping labels.

Products affected: SendPro® CX 100, SendPro® CX 200, SendPro® CX 300 and SendPro® CX 500

Issue

The SendPro CX Series will not print a shipping label and no error message appears.

Cause

  • There may be a problem with the printer.
  • The label size may be incorrect.
  • The top cover may be open.

Resolution

Solution 1: Change the default label size

  1. Tap Settings.
    Settings (gear) icon
  2. Swipe down and select Label Options.
  3. Change the format to Roll - 4 x 6.

In addition to setting the default label size on the SendPro CX Series, you may need to use a computer to sign into PitneyShip and set the label default size there as well.

Solution 2: If the printer has a solid green light

  1. Connect the USB cable into both the printer and SendPro CX Series device.
  2. Switch the USB cable and plug it into another USB port available on the back of the device.
  3. Restart the device:
    1. Unplug the power cord.
    2. Wait for the display to turn off.
    3. Wait 30 seconds and turn the power back on.

Solution 3: If the printer has a flashing red light

  • Load and align the labels correctly.
  • Make sure that the paper sensors are clear from any dust or debris.
  • Close the top cover firmly.

UPDATED: October 13, 2026