I want to print a Code 128 barcode through print to file.What text format I have to send.
Content-01 Numeric data 17 Numeric data 10 Variable data.
Please give me the formula.
With Regards
DS
you use ZPL to communicate with the printer. The ZPL syntax for printing Code 128 barcodes is here: https://support.zebra.com/cpws/docs/zpl/code_128.htm
Can we use direct printing for label printer (Zebra zp450). I'm able to print single barcode with below logic.Also it's printing correctly in a4 papers.
float x = leftMargin;
float y = topMargin;
for (; _iCount <= barcodeRows; _iCount++)
{
float lineTop = y;
for (int j = 1; j <= perLine; j++)
{
BarcodeDraw bdraw = BarcodeDrawFactory.GetSymbology(BarcodeSymbology.Code128);
Image barcodeImage = bdraw.Draw(txtBarcode.Text, barcodeHeight);
e.Graphics.DrawImage(barcodeImage, new Rectangle(Convert.ToInt16(x), Convert.ToInt16(y), barcodeWidth, barcodeHeight));
y = lineTop;
printCount++;
}
x = leftMargin;
y = y + (80+ 20);
}
Best way to get the ZPL code (the Zebra printers native code) is to generate a label with the desired barcode with Zebradesigner software (free of charge on the zebra website), then use the "print to file" option you can find in the print menu.
This will save a text file which includes all the required commands to print the label.
Related
I have never heard of ThinkOrSwrim till yesterday when someone asked me to convert a ThinkOrSwim script to an MQL4 indicator.
A part of the code is as follows:
input length = 21;
input price = close;
input ATRs=1;
input trueRangeAverageType = AverageType.WILDERS;
def flag;
def EMA = ExpAverage(close, length);
def shift1 = ATRs * MovingAverage(trueRangeAverageType, TrueRange(high, close, low), length);
I want to ask you to kindly check and let me know if my understanding is correct.
input ATRs=1; // This should be a multiplier for ATR, then I think I should give it a double
//type for more flexible control.
input trueRangeAverageType = AverageType.WILDERS;
//As far as I understood, wilders is the same as SMMA in MQL.
.
def shift1 = ATRs * MovingAverage(trueRangeAverageType, TrueRange(high, close, low), length);
Here is the main piece of this code which I need your help with.
My understanding is as follows
ATRs ==>> Just a multiplier
I think the rest of this line is calculating the ATR, right?
If so, then I can see that I cannot simply convert this to iATR (in mql), because we are not able to choose MA Methode of ATR in mql4.
Then I think first I have to put the "True Range" of each bar in an array and then use this array as a price source to get the averages.
MQL4:
for(int i = 0; i < rates_total; i++)
{
data[i] = iATR(_Symbol, TF_1, 1, i);
}
for(int i = 0; i < limit; i++)
{
ExtBuffer[i] = iMAOnArray(data, 0, Inplenght, 0, InpMAMethod, i);
}
If I'm in the right way yet, Then I think the iATR period has to be 1, to have the TrueRange of each bar and not the average of the TrueRanges.
And then have the variable length (from thinkOrSwim inputs) as the period parameter for iMAOnArray.
I would appreciate any help with it.
Regards
Edit:
I forgot to ask you something,
why should the programmer who wrote this thinkscript code call this variable shift1?
I have some questions regarding the flash memory with a dspic33ep512mu810.
I'm aware of how it should be done:
set all the register for address, latches, etc. Then do the sequence to start the write procedure or call the builtins function.
But I find that there is some small difference between what I'm experiencing and what is in the DOC.
when writing the flash in WORD mode. In the DOC it is pretty straightforward. Following is the example code in the DOC
int varWord1L = 0xXXXX;
int varWord1H = 0x00XX;
int varWord2L = 0xXXXX;
int varWord2H = 0x00XX;
int TargetWriteAddressL; // bits<15:0>
int TargetWriteAddressH; // bits<22:16>
NVMCON = 0x4001; // Set WREN and word program mode
TBLPAG = 0xFA; // write latch upper address
NVMADR = TargetWriteAddressL; // set target write address
NVMADRU = TargetWriteAddressH;
__builtin_tblwtl(0,varWord1L); // load write latches
__builtin_tblwth(0,varWord1H);
__builtin_tblwtl(0x2,varWord2L);
__builtin_tblwth(0x2,varWord2H);
__builtin_disi(5); // Disable interrupts for NVM unlock sequence
__builtin_write_NVM(); // initiate write
while(NVMCONbits.WR == 1);
But that code doesn't work depending on the address where I want to write. I found a fix to write one WORD but I can't write 2 WORD where I want. I store everything in the aux memory so the upper address(NVMADRU) is always 0x7F for me. The NVMADR is the address I can change. What I'm seeing is that if the address where I want to write modulo 4 is not 0 then I have to put my value in the 2 last latches, otherwise I have to put the value in the first latches.
If address modulo 4 is not zero, it doesn't work like the doc code(above). The value that will be at the address will be what is in the second set of latches.
I fixed it for writing only one word at a time like this:
if(Address % 4)
{
__builtin_tblwtl(0, 0xFFFF);
__builtin_tblwth(0, 0x00FF);
__builtin_tblwtl(2, ValueL);
__builtin_tblwth(2, ValueH);
}
else
{
__builtin_tblwtl(0, ValueL);
__builtin_tblwth(0, ValueH);
__builtin_tblwtl(2, 0xFFFF);
__builtin_tblwth(2, 0x00FF);
}
I want to know why I'm seeing this behavior?
2)I also want to write a full row.
That also doesn't seem to work for me and I don't know why because I'm doing what is in the DOC.
I tried a simple write row code and at the end I just read back the first 3 or 4 element that I wrote to see if it works:
NVMCON = 0x4002; //set for row programming
TBLPAG = 0x00FA; //set address for the write latches
NVMADRU = 0x007F; //upper address of the aux memory
NVMADR = 0xE7FA;
int latchoffset;
latchoffset = 0;
__builtin_tblwtl(latchoffset, 0);
__builtin_tblwth(latchoffset, 0); //current = 0, available = 1
latchoffset+=2;
__builtin_tblwtl(latchoffset, 1);
__builtin_tblwth(latchoffset, 1); //current = 0, available = 1
latchoffset+=2;
.
. all the way to 127(I know I could have done it in a loop)
.
__builtin_tblwtl(latchoffset, 127);
__builtin_tblwth(latchoffset, 127);
INTCON2bits.GIE = 0; //stop interrupt
__builtin_write_NVM();
while(NVMCONbits.WR == 1);
INTCON2bits.GIE = 1; //start interrupt
int testaddress;
testaddress = 0xE7FA;
status = NVMemReadIntH(testaddress);
status = NVMemReadIntL(testaddress);
testaddress += 2;
status = NVMemReadIntH(testaddress);
status = NVMemReadIntL(testaddress);
testaddress += 2;
status = NVMemReadIntH(testaddress);
status = NVMemReadIntL(testaddress);
testaddress += 2;
status = NVMemReadIntH(testaddress);
status = NVMemReadIntL(testaddress);
What I see is that the value that is stored in the address 0xE7FA is 125, in 0xE7FC is 126 and in 0xE7FE is 127. And the rest are all 0xFFFF.
Why is it taking only the last 3 latches and write them in the first 3 address?
Thanks in advance for your help people.
The dsPIC33 program memory space is treated as 24 bits wide, it is
more appropriate to think of each address of the program memory as a
lower and upper word, with the upper byte of the upper word being
unimplemented
(dsPIC33EPXXX datasheet)
There is a phantom byte every two program words.
Your code
if(Address % 4)
{
__builtin_tblwtl(0, 0xFFFF);
__builtin_tblwth(0, 0x00FF);
__builtin_tblwtl(2, ValueL);
__builtin_tblwth(2, ValueH);
}
else
{
__builtin_tblwtl(0, ValueL);
__builtin_tblwth(0, ValueH);
__builtin_tblwtl(2, 0xFFFF);
__builtin_tblwth(2, 0x00FF);
}
...will be fine for writing a bootloader if generating values from a valid Intel HEX file, but doesn't make it simple for storing data structures because the phantom byte is not taken into account.
If you create a uint32_t variable and look at the compiled HEX file, you'll notice that it in fact uses up the least significant words of two 24-bit program words. I.e. the 32-bit value is placed into a 64-bit range but only 48-bits out of the 64-bits are programmable, the others are phantom bytes (or zeros). Leaving three bytes per address modulo of 4 that are actually programmable.
What I tend to do if writing data is to keep everything 32-bit aligned and do the same as the compiler does.
Writing:
UINT32 value = ....;
:
__builtin_tblwtl(0, value.word.word_L); // least significant word of 32-bit value placed here
__builtin_tblwth(0, 0x00); // phantom byte + unused byte
__builtin_tblwtl(2, value.word.word_H); // most significant word of 32-bit value placed here
__builtin_tblwth(2, 0x00); // phantom byte + unused byte
Reading:
UINT32 *value
:
value->word.word_L = __builtin_tblrdl(offset);
value->word.word_H = __builtin_tblrdl(offset+2);
UINT32 structure:
typedef union _UINT32 {
uint32_t val32;
struct {
uint16_t word_L;
uint16_t word_H;
} word;
uint8_t bytes[4];
} UINT32;
I'm using grails with pdfbox plugin. I'd like to print checkboxes in pdf some are checked and some are not.
To print checkbox I did not a direct way(Even by using PDCheckbox class). So I've used the other way to print the checkbox with tick mark using the below code:
public static writeInputFieldToPDFPage( PDPage pdPage, PDDocument document, Float x, Float y, Boolean ticked) {
PDFont font = PDType1Font.HELVETICA
PDResources res = new PDResources()
String fontName = res.addFont(font)
String da = ticked?"/" + fontName + " 10 Tf 0 0.4 0 rg":""
COSDictionary acroFormDict = new COSDictionary()
acroFormDict.setBoolean(COSName.getPDFName("NeedAppearances"), true)
acroFormDict.setItem(COSName.FIELDS, new COSArray())
acroFormDict.setItem(COSName.DA, new COSString(da))
PDAcroForm acroForm = new PDAcroForm(document, acroFormDict)
acroForm.setDefaultResources(res)
document.getDocumentCatalog().setAcroForm(acroForm)
PDGamma colourBlack = new PDGamma()
PDAppearanceCharacteristicsDictionary fieldAppearance =
new PDAppearanceCharacteristicsDictionary(new COSDictionary())
fieldAppearance.setBorderColour(colourBlack)
if(ticked) {
COSArray arr = new COSArray()
arr.add(new COSFloat(0.89f))
arr.add(new COSFloat(0.937f))
arr.add(new COSFloat(1f))
fieldAppearance.setBackground(new PDGamma(arr))
}
COSDictionary cosDict = new COSDictionary()
COSArray rect = new COSArray()
rect.add(new COSFloat(x))
rect.add(new COSFloat(new Float(y-5)))
rect.add(new COSFloat(new Float(x+10)))
rect.add(new COSFloat(new Float(y+5)))
cosDict.setItem(COSName.RECT, rect)
cosDict.setItem(COSName.FT, COSName.getPDFName("Btn")) // Field Type
cosDict.setItem(COSName.TYPE, COSName.ANNOT)
cosDict.setItem(COSName.SUBTYPE, COSName.getPDFName("Widget"))
if(ticked) {
cosDict.setItem(COSName.TU, new COSString("Checkbox with PDFBox"))
}
cosDict.setItem(COSName.T, new COSString("Chk"))
//Tick mark color and size of the mark
cosDict.setItem(COSName.DA, new COSString(ticked?"/F0 10 Tf 0 0.4 0 rg":"/FF 1 Tf 0 0 g"))
cosDict.setInt(COSName.F, 4)
PDCheckbox checkbox = new PDCheckbox(acroForm, cosDict)
checkbox.setFieldFlags(PDCheckbox.FLAG_READ_ONLY)
checkbox.setValue("Yes")
checkbox.getWidget().setAppearanceCharacteristics(fieldAppearance)
pdPage.getAnnotations().add(checkbox.getWidget())
acroForm.getFields().add(checkbox)
}
This code is working fine in my application, this method is adding checkboxes with tick marks also.
But I can see those rectangle checkboxes or tick marks in only pdf readers, not in all other readers(Like chrome default pdf viewer), and even when I try to print the pdf its not printing the checkboxes, rather its printing some random ASCII numbers.
Please let me know if there is any other way to do this or even if I have to refactor the code.
What is wrong
Your AcroForm checkbox field construction is wrong: You treat it as a text field for which a PDF reader should create an appearance based on the default appearance (DA) value of the field in particular if NeedAppearances is true.
Checkboxes are different, though: you do have to supply an appearance stream at least for the on state, cf. the specification ISO 32000-1:
A check box field represents one or more check boxes that toggle between two states, on and off, when manipulated by the user with the mouse or keyboard. Its field type shall be Btn and its Pushbutton and Radio flags (see Table 226) shall both be clear. Each state can have a separate appearance, which shall be defined by an appearance stream in the appearance dictionary of the field’s widget annotation (see 12.5.5, “Appearance Streams”). The appearance for the off state is optional but, if present, shall be stored in the appearance dictionary under the name Off. Yes should be used as the name for the on state.
(ISO 32000-1 section 12.7.4.2.3 "Check Boxes")
Thus, instead of constructing a DA entry you have to construct an AP ("appearances") entry, itself a dictionary with at least a N ("normal appearances") entry, itself a dictionary with at least an entry for the on state appearance which is recommended to be called Yes.
The specification provides an example which shows a typical check box definition:
1 0 obj
<< /FT /Btn
/T (Urgent)
/V /Yes
/AS /Yes
/AP << /N << /Yes 2 0 R /Off 3 0 R>>
>>
endobj
2 0 obj
<< /Resources 20 0 R
/Length 104
>>
stream
q
0 0 1 rg
BT
/ZaDb 12 Tf
0 0 Td
(4) Tj
ET
Q
endstream
endobj
3 0 obj
<< /Resources 20 0 R
/Length 104
>>
stream
q
0 0 1 rg
BT
/ZaDb 12 Tf
0 0 Td
(8) Tj
ET
Q
endstream
endobj
(The resources in 20 0 obj appear to include a font resource named ZaDb referencing ZapfDingbats.)
By the way, you mention that there is a PDF viewer which actually displays a tick for your document as is. You might want to inform their development that they are doing the wrong thing there.
An example
In a comment you asked for sample code and indicated that it was ok if it were for a current 2.0.x version of PDFBox. So I tried it and came up with this code:
PDDocument document = new PDDocument();
PDPage page = new PDPage();
document.addPage(page);
PDAcroForm acroForm = new PDAcroForm(document);
document.getDocumentCatalog().setAcroForm(acroForm);
COSDictionary normalAppearances = new COSDictionary();
PDAppearanceDictionary pdAppearanceDictionary = new PDAppearanceDictionary();
pdAppearanceDictionary.setNormalAppearance(new PDAppearanceEntry(normalAppearances));
pdAppearanceDictionary.setDownAppearance(new PDAppearanceEntry(normalAppearances));
PDAppearanceStream pdAppearanceStream = new PDAppearanceStream(document);
pdAppearanceStream.setResources(new PDResources());
try (PDPageContentStream pdPageContentStream = new PDPageContentStream(document, pdAppearanceStream))
{
pdPageContentStream.setFont(PDType1Font.ZAPF_DINGBATS, 14.5f);
pdPageContentStream.beginText();
pdPageContentStream.newLineAtOffset(3, 4);
pdPageContentStream.showText("\u2714");
pdPageContentStream.endText();
}
pdAppearanceStream.setBBox(new PDRectangle(18, 18));
normalAppearances.setItem("Yes", pdAppearanceStream);
pdAppearanceStream = new PDAppearanceStream(document);
pdAppearanceStream.setResources(new PDResources());
try (PDPageContentStream pdPageContentStream = new PDPageContentStream(document, pdAppearanceStream))
{
pdPageContentStream.setFont(PDType1Font.ZAPF_DINGBATS, 14.5f);
pdPageContentStream.beginText();
pdPageContentStream.newLineAtOffset(3, 4);
pdPageContentStream.showText("\u2718");
pdPageContentStream.endText();
}
pdAppearanceStream.setBBox(new PDRectangle(18, 18));
normalAppearances.setItem("Off", pdAppearanceStream);
PDCheckBox checkBox = new PDCheckBox(acroForm);
acroForm.getFields().add(checkBox);
checkBox.setPartialName("CheckBoxField");
checkBox.setFieldFlags(4);
List<PDAnnotationWidget> widgets = checkBox.getWidgets();
for (PDAnnotationWidget pdAnnotationWidget : widgets)
{
pdAnnotationWidget.setRectangle(new PDRectangle(50, 750, 18, 18));
pdAnnotationWidget.setPage(page);
page.getAnnotations().add(pdAnnotationWidget);
pdAnnotationWidget.setAppearance(pdAppearanceDictionary);
}
// checkBox.setReadOnly(true);
checkBox.check();
// checkBox.unCheck();
document.save(new File(RESULT_FOLDER, "CheckBox.pdf"));
document.close();
(CreateCheckBox test testCheckboxForSureshGoud)
Be sure to use either
checkBox.check();
or
checkBox.unCheck();
as otherwise the state of the box is undefined.
#mkl has a good answer, but I think it can be simplified a little bit in case you already have a Document and just want to add a PDCheckbox (scala):
def addCheckboxField(
doc: PDDocument,
form: PDAcroForm,
name: String,
pg: Int, // page number
x: Float,
y: Float,
width: Float,
height: Float
) = {
val normalAppearances = new COSDictionary()
normalAppearances.setItem(
"Yes", {
val appearanceStream = new PDAppearanceStream(doc)
appearanceStream.setResources(new PDResources())
appearanceStream
}
)
val appearanceDictionary = new PDAppearanceDictionary()
appearanceDictionary.setNormalAppearance(new PDAppearanceEntry(normalAppearances))
appearanceDictionary.setDownAppearance(new PDAppearanceEntry(normalAppearances))
val field = new PDCheckBox(form)
field.setPartialName(name)
val widget = field.getWidgets.get(0)
widget.setAppearance(appearanceDictionary)
form.getFields.add(field)
val page = doc.getPage(pg)
widget.setRectangle(new PDRectangle(x, y, width, height))
widget.setPage(page)
widget.setPrinted(true)
page.getAnnotations().add(widget)
// do what you want with it
field.unCheck()
}
It's likely there are other simplifications that can be made, but this is what worked for me.
PdfBox version: 2.0.21
When yo generate a barcode with Barcode4j as an image, you could obtain the human readable text, too, for instance:
EAN13 barcode example
In this picture we can see that the human readable text is: 1000000012026
In this example the barcode has been generated with the code 100000001202 and the number 6 is the check digit added by Barcode4j generator.
So, my question is: Is possible obtain the check digit of an EAN13 generated barcode with Barcode4j? Because I know how to render this as a image, but I don't know how to obtain the human readable text, as a plain text.
Regards,
Miguel.
Thanks to Barcode4j plugin, you can calculate the checksum with the barcode format you need. In Java 7, you can calculate the checkSum as this way:
private String calculateCodeWithcheckSum(String codigo){
EAN13Bean generator = new EAN13Bean();
UPCEANLogicImpl impl = generator.createLogicImpl();
codigo += impl.calcChecksum(codigo);
return codigo;
}
First, you need the EAN13 barcode format, so you can get the class that the plugin provides you, and call its only method: createLogicImpl().
This method is used to give you a class of type UPCEANLogicImpl.
This is the class you need, because you can find in it the method to calculate the checkSum. So, you only have to call the method calcChecksum giving your code (100000001202), and will give you the checkSum value (6).
You can check it in the next web: http://www.gs1.org/check-digit-calculator
Adding your code and the checkSum value will give you the value you need (1000000012026)
In case you what to compute the check digit without importing a java library here's the code:
public static String ean13CheckDigit(String barcode) {
int s = 0;
for (int i = 0; i < 12; i++) {
int c = Character.getNumericValue(barcode.charAt(i));
s += c * ( i%2 == 0? 1: 3);
}
s = (10 - s % 10) % 10;
barcode += s;
return barcode;
}
I think I'm very close to getting this to print. However it still isn't. There is no exception thrown and it does seem to be hitting the zebra printer, but nothing. Its a long shot as I think most people are in the same position I am and know little about it. Any help anyone can give no matter how small will be welcomed, I'm losing the will to live
using (var response = request.GetResponse())
{
using (var responseStream = response.GetResponseStream())
{
using (var stream = new MemoryStream())
{
if (responseStream == null)
{
return;
}
responseStream.CopyTo(stream);
stream.Position = 0;
using (var zipout = ZipFile.Read(stream))
{
using (var ms = new MemoryStream())
{
foreach (var e in zipout.Where(e => e.FileName.Contains(".png")))
{
e.Extract(ms);
}
if (ms.Length <= 0)
{
return;
}
var binaryData = ms.ToArray();
byte[] compressedFileData;
// Compress the data using the LZ77 algorithm.
using (var outStream = new MemoryStream())
{
using (var compress = new DeflateStream(outStream, CompressionMode.Compress, true))
{
compress.Write(binaryData, 0, binaryData.Length);
compress.Flush();
compress.Close();
}
compressedFileData = outStream.ToArray();
}
// Encode the compressed data using the MIME Base64 algorithm.
var base64 = Convert.ToBase64String(compressedFileData);
// Calculate a CRC across the encoded data.
var crc = Calc(Convert.FromBase64String(base64));
// Add a unique header to differentiate the new format from the existing ASCII hexadecimal encoding.
var finalData = string.Format(":Z64:{0}:{1}", base64, crc);
var zplToSend = "~DYR:LOGO,P,P," + finalData.Length + ",," + finalData;
const string PrintImage = "^XA^FO0,0^IMR:LOGO.PNG^FS^XZ";
try
{
var client = new System.Net.Sockets.TcpClient();
client.Connect(IpAddress, Port);
var writer = new StreamWriter(client.GetStream(), Encoding.UTF8);
writer.Write(zplToSend);
writer.Flush();
writer.Write(PrintImage);
writer.Close();
client.Close();
}
catch (Exception ex)
{
// Catch Exception
}
}
}
}
}
}
private static ushort Calc(byte[] data)
{
ushort wCrc = 0;
for (var i = 0; i < data.Length; i++)
{
wCrc ^= (ushort)(data[i] << 8);
for (var j = 0; j < 8; j++)
{
if ((wCrc & 0x8000) != 0)
{
wCrc = (ushort)((wCrc << 1) ^ 0x1021);
}
else
{
wCrc <<= 1;
}
}
}
return wCrc;
}
The following code is working for me. The issue was the commands, these are very very important! Overview of the command I have used below, more can be found here
PrintImage
^XA
Start Format Description The ^XA command is used at the beginning of ZPL II code. It is the opening bracket and indicates the start of a new label format. This command is substituted with a single ASCII control character STX (control-B, hexadecimal 02). Format ^XA Comments Valid ZPL II format requires that label formats should start with the ^XA command and end with the ^XZ command.
^FO
Field Origin Description The ^FO command sets a field origin, relative to the label home (^LH) position. ^FO sets the upper-left corner of the field area by defining points along the x-axis and y-axis independent of the rotation. Format ^FOx,y,z
x = x-axis location (in dots) Accepted Values: 0 to 32000 Default
Value: 0
y = y-axis location (in dots) Accepted Values: 0 to 32000
Default Value: 0
z = justification The z parameter is only
supported in firmware versions V60.14.x, V50.14.x, or later. Accepted
Values: 0 = left justification 1 = right justification 2 = auto
justification (script dependent) Default Value: last accepted ^FW
value or ^FW default
^IM
Image Move Description The ^IM command performs a direct move of an image from storage area into the bitmap. The command is identical to the ^XG command (Recall Graphic), except there are no sizing parameters. Format ^IMd:o.x
d = location of stored object Accepted Values: R:, E:, B:, and A: Default Value: search priority
o = object name Accepted Values: 1 to 8 alphanumeric characters Default Value: if a name is not specified, UNKNOWN is used
x = extension Fixed Value: .GRF, .PNG
^FS
Field Separator Description The ^FS command denotes the end of the field definition. Alternatively, ^FS command can also be issued as a single ASCII control code SI (Control-O, hexadecimal 0F). Format ^FS
^XZ
End Format Description The ^XZ command is the ending (closing) bracket. It indicates the end of a label format. When this command is received, a label prints. This command can also be issued as a single ASCII control character ETX (Control-C, hexadecimal 03). Format ^XZ Comments Label formats must start with the ^XA command and end with the ^XZ command to be in valid ZPL II format.
zplToSend
^MN
Media Tracking Description This command specifies the media type being used and the black mark offset in dots. This bulleted list shows the types of media associated with this command:
Continuous Media – this media has no physical characteristic (such as a web, notch, perforation, black mark) to separate labels. Label length is determined by the ^LL command.
Continuous Media, variable length – same as Continuous Media, but if portions of the printed label fall outside of the defined label length, the label size will automatically be extended to contain them. This label length extension applies only to the current label. Note that ^MNV still requires the use of the ^LL command to define the initial desired label length.
Non-continuous Media – this media has some type of physical characteristic (such as web, notch, perforation, black mark) to separate the labels.
Format ^MNa,b
a = media being used Accepted Values: N = continuous media Y = non-continuous media web sensing d, e W = non-continuous media web sensing d, e M = non-continuous media mark sensing A = auto-detects the type of media during calibration d, f V = continuous media, variable length g Default Value: a value must be entered or the command is ignored
b = black mark offset in dots This sets the expected location of the media mark relative to the point of separation between documents. If set to 0, the media mark is expected to be found at the point of separation. (i.e., the perforation, cut point, etc.) All values are listed in dots. This parameter is ignored unless the a parameter is set to M. If this parameter is missing, the default value is used. Accepted Values: -80 to 283 for direct-thermal only printers -240 to 566 for 600 dpi printers -75 to 283 for KR403 printers -120 to 283 for all other printers Default Value: 0
~DY
Download Objects Description The ~DY command downloads to the printer graphic objects or fonts in any supported format. This command can be used in place of ~DG for more saving and loading options. ~DY is the preferred command to download TrueType fonts on printers with firmware later than X.13. It is faster than ~DU. The ~DY command also supports downloading wireless certificate files. Format ~DYd:f,b,x,t,w,data
Note
When using certificate files, your printer supports:
- Using Privacy Enhanced Mail (PEM) formatted certificate files.
- Using the client certificate and private key as two files, each downloaded separately.
- Using exportable PAC files for EAP-FAST.
- Zebra recommends using Linear sty
d = file location .NRD and .PAC files reside on E: in firmware versions V60.15.x, V50.15.x, or later. Accepted Values: R:, E:, B:, and A: Default Value: R:
f = file name Accepted Values: 1 to 8 alphanumeric characters Default Value: if a name is not specified, UNKNOWN is used
b = format downloaded in data field .TTE and .TTF are only supported in firmware versions V60.14.x, V50.14.x, or later. Accepted Values: A = uncompressed (ZB64, ASCII) B = uncompressed (.TTE, .TTF, binary) C = AR-compressed (used only by Zebra’s BAR-ONE® v5) P = portable network graphic (.PNG) - ZB64 encoded Default Value: a value must be specified
clearDownLabel
^ID
Description The ^ID command deletes objects, graphics, fonts, and stored formats from storage areas. Objects can be deleted selectively or in groups. This command can be used within a printing format to delete objects before saving new ones, or in a stand-alone format to delete objects.
The image name and extension support the use of the asterisk (*) as a wild card. This allows you to easily delete a selected groups of objects. Format ^IDd:o.x
d = location of stored object Accepted Values: R:, E:, B:, and A: Default Value: R:
o = object name Accepted Values: any 1 to 8 character name Default Value: if a name is not specified, UNKNOWN is used
x = extension Accepted Values: any extension conforming to Zebra conventions
Default Value: .GRF
const string PrintImage = "^XA^FO0,0,0^IME:LOGO.PNG^FS^XZ";
var zplImageData = string.Empty;
using (var response = request.GetResponse())
{
using (var responseStream = response.GetResponseStream())
{
using (var stream = new MemoryStream())
{
if (responseStream == null)
{
return;
}
responseStream.CopyTo(stream);
stream.Position = 0;
using (var zipout = ZipFile.Read(stream))
{
using (var ms = new MemoryStream())
{
foreach (var e in zipout.Where(e => e.FileName.Contains(".png")))
{
e.Extract(ms);
}
if (ms.Length <= 0)
{
return;
}
var binaryData = ms.ToArray();
foreach (var b in binaryData)
{
var hexRep = string.Format("{0:X}", b);
if (hexRep.Length == 1)
{
hexRep = "0" + hexRep;
}
zplImageData += hexRep;
}
var zplToSend = "^XA" + "^FO0,0,0" + "^MNN" + "~DYE:LOGO,P,P," + binaryData.Length + ",," + zplImageData + "^XZ";
var label = GenerateStreamFromString(zplToSend);
var client = new System.Net.Sockets.TcpClient();
client.Connect(IpAddress, Port);
label.CopyTo(client.GetStream());
label.Flush();
client.Close();
var cmd = GenerateStreamFromString(PrintImage);
var client2 = new System.Net.Sockets.TcpClient();
client2.Connect(IpAddress, Port);
cmd.CopyTo(client2.GetStream());
cmd.Flush();
client2.Close();var clearDownLabel = GenerateStreamFromString("^XA^IDR:LOGO.PNG^FS^XZ");
var client3 = new System.Net.Sockets.TcpClient();
client3.Connect(IpAddress, Port);
clearDownLabel.CopyTo(client3.GetStream());
clearDownLabel.Flush();
client3.Close();
}
}
}
}
}
}
Easy once you know how.
Zebra ZPL logo example in base64
Python3
import crcmod
import base64
crc16 = crcmod.predefined.mkCrcFun('xmodem')
s = hex(crc16(ZPL_LOGO.encode()))[2:]
print (f"crc16: {s}")
Poorly documented may I say the least