Hi Everyone, I found this post and it's exactly what I'm looking to do(print labels from Node-Red Flow): [image] Create labels with QR code General That looks really good. Thanks for that. can you also adjust the size of the labels? and that the PDFs also have this size?…

Well good news and bad news. Good news is I am successfully printing labels on the Brother P950NW P-Touch label printer. Bad news is I never could get the Raster command set working. There was just too much to unpack and the documentation was not clear enough to implement a working solution. I i…

Hi! I use the one Zebra GK420d. I print it directly from lp linux. Here's an example msg.druck = "lp -d Zebra_Etiketten_duckerpi -o media=94x264 "+msg.filename; return msg; What kind of system are you? raspberry pi? mac?

Hi @madmax , Thank you so much for replying! I'll be running Node-Red on a Mac. I'm open to label printers so I'll take a look at the Zebra GK420d. What are you sending that object to? An Exec node? I have never worked with a printer from software so this is new territory for me. Just looked a…

The p-touch models can usually be operated from node. E.g... [image] keywords:ptouch - npm search If not, there seems to be a CLI you could call from an exec node.

Hi @Steve-Mcl , Thank you very much for chiming in. Much appreciated. Yes, I was looking at the node-ptouch package (had done a p-touch nodejs search). The example just shows text but this must be using raster commands to send data to the printer I assume. Brother has some convoluted documentatio…

[image] telliottosceola: I think I can covert the PDF to a Raster, and then feed it to the printer over a socket. I'm about 99% this will work The PDF comes after the barcode creation which is already a raster image. Just ditch the PDF part. I never understood why the op of the other thread n…

Got it. So is Base64 a raster image? Sorry, I've worked with Base64 displaying images on small embedded devices, but this is my first encounter with Rasters.

@Steve-Mcl , I'd like to start by thanking you for your time thus far. I know this is getting outside the scope of this forum but I will convert my development to an NPM library and also create a Node for Node-Red if I can get this to work in case it is of some use to others in the future. Update …

[image] telliottosceola: Got it. So is Base64 a raster image No, base64 is a string version of something (in this case, an image) What you likely need is the bitmap data. This can be easily achieved by returning a jimp image from an image node then accessing msg.payload.bitmap.data (I thin…

@Steve-Mcl , Ok that's getting somewhere. That generated 40kb of data. Now it seems to be an array of 0x00 and 0xFF bytes. I assume these are just on/off bits for the dot matrix. In contrast the array sent out by the P-Touch editor software is not just an array of 0x00/0xFF bytes. Here is just …

There is definitely a reoccurring pattern here: 0e 00 4d 02 47 02 00 bb 00 47 02 00 bb 00 47 02 00 bb 00 47 02 00 bb 00 47 02 00 bb 00 47 02 00 bb 00 47 02 00 bb 00 47 02 00 bb 00 47 02 00 bb 00 47 02 00 bb 00 47 02 00 bb 00 47 02 00 bb 00 47 02 00 bb 00 47 02 00 bb 00 47 02 00 bb 00 …

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Printing label from Node-Red Flow

General

Topic		Replies	Views
Create labels with QR code General	12	1671	5 September 2021
Communicate with printer General	35	7163	18 March 2022
Print using CUPS General node-red-dashboard , function-node	12	613	9 August 2023
How to convert a barcode to a pdf file General	6	377	17 September 2022
Generate QR code with exec node fault General	10	1243	29 September 2020

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Printing label from Node-Red Flow

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