Ink smudging or scuffing on postcards is a common issue caused by USPS's high-speed sorting machines. When postcards pass through these machines, even a slight delay in processing can result in abrasions or smudges. In some cases, using thicker paper stock may worsen the issue rather than prevent it.
This is an industry-wide challenge affecting various mail providers, not just our printer or mail pieces. If you’re experiencing this issue, you’re not alone.
For more details on why this happens and potential solutions, check out this resource:
We sincerely apologize for any inconvenience this may have caused. If you have any questions or need further assistance, please feel free to reach out to our support team via chat. We're happy to help!