ZD421 and ZD621 Desktop Printers User Guide

Issue: Labels Are Distorted in Size or Print Area Start Position Varies

Coincident with this issue, the printed image may skips between labels (mis-registration).

Possible causes and resolutions:

Media has been loaded incorrectly or the movable media sensor is not set properly. Verify that the sensor is set and positioned correctly for your media type and sensing location. See the following:

Roll Media Types and Loading

Setting Media Sensing by Media type

Adjusting the Movable Sensor for Black Marks or Notches

Adjusting the Movable Sensor for Web (Gap) Sensing

The media sensors are not calibrated for your media length, physical properties, or sensing type (gap/notch, continuous, or mark). See Running a SmartCal Media Calibration. If the printer still skips labels, try a manual media calibration. See Print > Sensors > Manual Calibration.

The platen (drive) roller is slipping or damaged. Clean or replace the platen. Platens can wear out or get damaged. See Cleaning and Replacing the Platen.

The printer has communication issues with cables or communication settings. See Communication Issues.