Film Printing & Usage Precautions

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H17 Phone Case Heat Press Guide

Film Printing & Usage Precautions

Written by HTVRONT

Published on November 9, 2025

Modified on November 10, 2025

Reading time for 1 min

Table of contents

Q1: What to do if the printing fails? Q2: How to correctly use the sublimation film? Q3: Why is there a color difference between the original image and the transferred design?

Q1: What to do if the printing fails?

A1: Please use a sublimation printer and ensure it supports media thicker than 0.3 mm.
A2: Set the print size to A4. It is recommended to select “Transparency” or “Thick Paper” as the paper type.
A3: The film may affect sensor detection or cause feeding issues due to its transparency or smooth back. Attach a sticker to the edge or an A4 sheet to the back to improve performance.

Q2: How to correctly use the sublimation film?

A1: When printing, make sure to print on the matte side of the sublimation film.

A2: If the printer has trouble detecting or feeding the film, stick a label on the bottom edge of the film. If it still fails, attach an A4 sheet to the back to improve feeding and sensor detection.

A3: When drying the printed film, place it with the matte side facing up.

Q3: Why is there a color difference between the original image and the transferred design?

A1: This may be due to your printer model or the type of ink used. Try performing color correction and cleaning the printhead;
A2: If the final result looks too yellow, reduce the yellow ink output in the printer settings;
A3: Glossy phone cases tend to produce more vibrant results than matte ones—choose the type that suits your preference;
A4: Make sure to follow the recommended heat pressing settings. Over-pressing may also affect color accuracy.

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