The most common issue with the new Reveal-S Sublimation to Cotton Film and some substrates that are not pressing correctly can come down to the heat press and not the imprinting method that is used. We want to show you a simple way to test – calibrate – your heat press.
Before we begin, what you will need is either a pyrometer, or a meat thermometer. Pyrometers need to be of the probe tip variety, heat guns do not normally measure the temperature of the heat press adequately and, to remove all variables, we want you to use a sensor that touches the platen itself. As for meat thermometers, you’re looking for one that is long enough to get from an edge of the press to at least an inch or so from the center, the gauge should also read all the way up to at least 425°F.
Once you have your tool, and the heat press is on and waiting, let it heat up to 400°F. First, we will go over testing with a pyrometer:
Once the heat press is at a constant 400°F, take the probe tip and record the temperatures at each corner of the upper platen and in the center, giving you a good indication of the overall temperature in each area of the press. If you notice any spots giving very different results then the rest, then record those findings, this could indicate cold spots on the press.
After finding the readings of all areas, you can either give us a call at Condé Tech Support at 1-800-826-6332, option 2, or you can find a simple guide for Geo Knight printers and changing the Off-set here:
If you are using another brand of heat press, you should contact either your supplier or manufacturer and see what they suggest to do with your particular brand.
Now, for those of you using a meat thermometer, once the press is heated up to 400°, take a thermometer and position it at the front center of the press, lower the platen onto the thermometer, not locking it in place, just letting the weight of the press hold it in place. If you happen to have a pneumatic press or a spring assisted press, you can put the pressure as low as possible lock it into place, but be careful as too much pressure can damage the thermometer.
Once in place, let it rest in the heat press for around 5-10 minutes, or until you see the temperature on the press go back to a constant 400° without varying up and down.
When the press is back at a constant 400°, take a look at the thermometer and record the temperature that the gauge shows. Now you have the choice to either follow this single reading or to test each side of the heat press to make sure it is constant and you don’t have unknown issues.
After finding the readings of all areas, you can either give us a call or you can find a simple guide for Geo Knight printers and changing the Off-set here:
If you’re using another brand of heat press, you should contact either your supplier or manufacturer and see what they suggest to do with your particular brand.
Hopefully this guide has helped you find the true temperature of your press. Thank you for your time.