The limitations for Direct Protocol (DP) output are:

•The color element is not supported. If you want to print white inside a black box, then you should simply print the elements on top of each other. Generally printing something twice in the same position will cause the print out to be comes white (XOR). This is same functionality as for ZPL.

•Text size is rounded down to the nearest point size, which can result in a slightly smaller font.

•Rounded corners for boxes are not supported. Rounded corners are printed as sharp.

•Barcodes with human readable text is positioned incorrectly at 180 and 270 degree rotations.  A work-around is to add text as regular text in the designer (or avoid 180/270 degrees rotation).

•The barcode, ITF-14 is NOT supported by Intermec Direct Protocol. The ITF-14 barcode can however be built as a Interleaved 2 of 5 barcode, with a box surrounding the barcode.

•The barcodes, EAN-13 and UPC-A/E has a ratio hardcoded as 2:1 in InterformNG. DP is hardcoded to 3:1 by the printer, which gives a larger barcode.

•The Datamatrix barcode: InterformNG switches between rectangle and square. DP is set to always use rectangle.

•The resolution of Direct Protocol printers is normally lower than for PCL compatible printers. This will normally cause the barcodes to be larger on a Direct Protocol compatible printer compared to the same barcode on a PCL printer. The potential size difference is larger on a low resolution printer (203 DPI) compared to a higher resolution (300 DPI). This is described for the barcode module width set in the barcode style.

•Direct Protocol supports a module size in QR barcode sizes of up to 27 dots. If larger barcodes are needed, then InterFormNG will create an image of the barcode and use that, thus causing a slower print speed for larger barcodes.