![]() Low performance is allowed for the printer to print a barcode. The readable range (reading depth) for a barcode is widened. (laser printer, thermal transfer printer) If the narrow width is large The size of a barcode becomes large. High performance is required for the printer to print a barcode. The readable range (reading depth) for a barcode is narrowed. A barcode with many digits can be printed in a given space. The X-Dimension is an approximate measure of the average width of the narrow elements in a 2D stacked barcode symbol or a single element or module in a 2D. One Point If the narrow width is small: The size of a barcode becomes small. Narrow bar width is also named "minimum element width". The width of a narrow bar is a key for selecting a barcode reader. The following ratio is normally recommended for preparing a barcode. If the ratio of narrow and wide is out of the range above, the barcode reader may perform unstable readings.įor preparing a barcode, careful attention shall be made to this ratio. Narrow and wide widths are determined at the following ratio: It is recommended to keep the height greater than 15 % of the barcode length. If the barcode is not high enough, the laser may deviate from the barcode, causing unstable readings. It is recommended to make the barcode as high as the printer permits. If the barcode length, including quiet zones, does not fit in the scan width, the barcode reader cannot scan the data. It is appended directly after the barcode data.īarcode length defines the total length including the right and left quiet zones. Check digitĪ numeric value calculated to check for read error. The drawing above shows that the data of “012” is demonstrated, with the bar patterns representing 0, 1, and 2 being arranged respectively from the left. (EAN and ITF use, instead of a character, a bar pattern which indicates the start/end of the data.) Data (message)īar patterns representing the data (numerical characters, alphabet, etc.) are arranged from left. CODE 39 uses “*” and CODABAR uses “a”,“b”,“c” and “d”. Start/stop character varies depending on the type of the barcode. Start/stop characterĬharacter to indicate start or end of the data. Unless the quiet zones are wide enough, it becomes unstable for the barcode reader to scan the barcode data. ![]() In this example, the symbols Y-axis is clearly greater than its X-axis. (See here for narrow bar width.) One Point Axial Non-Uniformity The amount of deviation along a symbols major axes. If the margin is not wide enough, the barcode reader cannot scan the barcode data.īoth the right and left margins should be at least 10 times as wide as the narrow bar width (minimum element width). The right and left ends of the barcode symbol. Please refer PDF/Xamarin section for respective code samples if ( Device. Close ( true ) //Save the stream into pdf file //The operation in Save under Xamarin varies between Windows Phone, Android and iOS platforms. Magnification (X-Dimension) The specified magnification (X-dimension) range for an UPC-A/E & EAN-8/13 Barcode is 80 - 200 (X-dimension 0.26mm - 0. ![]() Save ( stream ) //Closes the document doc. Draw ( page, new PointF ( 25, 70 )) //Save the PDF document to stream MemoryStream stream = new MemoryStream () doc. Text = "CODE39$" //Printing barcode to the PDF document barcode. Add () //Drawing Code39 barcode PdfCode39Barcode barcode = new PdfCode39Barcode () //Setting height of the barcode barcode. Creating new PDF Document PdfDocument doc = new PdfDocument () //Adding new page to PDF document PdfPage page = doc.
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