![]() ![]() This is usually a solid black line between 3mm and 5mm deep that spans the whole width of the media but can also be used for detecting small holes instead. This is commonly found on labels and tags that either have no gaps between them (for example continuous media with perforations), clear die cut labels, round or other shaped die cut labels. LineĪnother common sensing option is the line or also known as black line. Some examples of printers that use a gap sensor would include but not limited to: any Labelstation, any Dymo LabelWriter and most Zebra printers. If there is a gap when there shouldn't be then there's a label missing or you've come to the end of the roll. If there is an inconsistency it will know something isn't right and will give an error such as if there's no gap when there should be then there is a possible paper jam or overlapping labels. It will be calibrated* to detect the difference between a label and the gap between each label. The printer will have an optical sensor that will shine an invisible light through both the label and the backing paper. A huge selection of rectangular, opaque, die cut labels (labels that are pre cut to size) have a gap of ~3mm between them. Let's start with the most common option in professional printing the gap option. If these are not set correctly they can cause your printer to either error or print incorrectly. These are used to tell the printer where the start and finish of each label is. They can either detect a gap, a hole or a black line that is printed for the sole purpose of sensing. The different sensing options are all optical. After our very popular blog post, " Difference between Direct Thermal and Thermal Transfer", I thought it would only be fair to explain the difference in the sensing options too. ![]()
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