Fedora 20, Gnome 3.12, Cups 1.7.3, USB printer: official example code of raw printer doesn't do anything about node-printer HOT 4 CLOSED

OS?
Could you post the script here?
What is the output?

Any other info would help us find the issue.

from node-printer.

Fedora 20, Linux 3.14.6 (64 bits).
The script is a light variant of your basic example:

var printer = require("printer")
var printerName="Stylus-DX7400"
console.log(printer.getPrinter(printerName))
console.log("---------------------")
console.log(printer.getSupportedPrintFormats(printerName))
console.log("---------------------")
console.log(printer.getSupportedJobCommands(printerName))
console.log("---------------------")
printer.printDirect({
data:new Buffer("I will be written"),
printer: printerName,
type: "RAW" ,
success:function(jobID){
console.log("Job sent with ID: " + jobID)
var jobInfo = printer.getJob(printerName, jobID)
console.log("Job info:" + JSON.stringify(jobInfo, null, 2))
},
error:function(err){console.log(err)}
})

And the output is:

{ name: 'Stylus-DX7400',
isDefault: true,
options:
{ copies: '1',
'device-uri': 'usb://EPSON/Stylus%20DX7400?serial=4C3632303346CB2F66&interface=1',
finishings: '3',
'job-hold-until': 'no-hold',
'job-priority': '50',
'job-sheets': 'none,none',
'marker-change-time': '0',
media: 'iso_a4_210x297mm',
'number-up': '1',
'printer-commands': 'AutoConfigure,Clean,PrintSelfTestPage',
'printer-info': 'EPSON Stylus DX7400',
'printer-is-accepting-jobs': 'true',
'printer-is-shared': 'true',
'printer-location': 'minuevofedora-dominio',
'printer-make-and-model': 'Epson Stylus DX7400 - CUPS+Gutenprint v5.2.9 Simplified',
'printer-state': '3',
'printer-state-change-time': '1402955900',
'printer-state-reasons': 'none',
'printer-type': '8556556',

'printer-uri-supported': 'ipp://localhost:631/printers/Stylus-DX7400' } }

[ 'AUTO', 'COMMAND', 'JPEG', 'PDF', 'POSTSCRIPT', 'RAW', 'TEXT' ]

[ 'CANCEL' ]

Job sent with ID: 179
Job info:{
"id": 179,
"name": "node print job",
"printerName": "Stylus-DX7400",
"user": "q2dg",
"format": "RAW",
"priority": 50,
"size": 1,
"status": [
"PRINTING"
],
"completedTime": "1970-01-01T00:00:00.000Z",
"creationTime": "2014-06-16T21:58:48.000Z",
"processingTime": "2014-06-16T21:58:48.000Z"
}

All seems to be ok, but printer doesn't do ANYTHING. It's very strange

Thanks for your interest

from node-printer.

I can see 2 issues:

1. data format issue: By sending raw data to printer means that you sending command(s) directly. I don't think for this printer is published a command language. You have to use driver rather than direct commands.
2. Encode issue: New Bufer("some text") without the second parameter means will be encoded in utf8. Check which charcode does your printer support.

As a solution try to send a "TEXT" format data without Buffer, like:

var printer = require("printer")
var printerName="Stylus-DX7400"
console.log(printer.getPrinter(printerName))
console.log("---------------------")
console.log(printer.getSupportedPrintFormats(printerName))
console.log("---------------------")
console.log(printer.getSupportedJobCommands(printerName))
console.log("---------------------")
printer.printDirect({
data:"I will be written", // no new Buffer
printer: printerName,
type: "TEXT" , // TEXT instead of RAW
success:function(jobID){ 
console.log("Job sent with ID: " + jobID) 
var jobInfo = printer.getJob(printerName, jobID)
console.log("Job info:" + JSON.stringify(jobInfo, null, 2))
},
error:function(err){console.log(err)}
})

If you really want to send a RAW data format, then check first printer manual, which command language it does support. I couldn't find any language published for this printer.

The Idea of RAW data format is to print barcodes, payment receipts, etc., are common for termal printers where a command language is published.

from node-printer.

YES!!!! YES!!! YES!!!
You were right!!!
It works!!
Thanks a lot!!!

Now I must learn how to print external files, like Pngs, Odts, Pdfs... because I think it's the most useful functionality (in fact, you know I opened another issue about the lack of this king of examples...I will try to get some working codes to share them).

I close the issue!
Thanks!!

from node-printer.