Rasterize HTML, PDFs to Raw #19

tresf · 2016-03-28T18:25:57Z

After supporting the 2.0 branch for a couple months, we've noticed an increasing amount of people trying to use Pixel printing against their raw devices for some specific cases, such as a packing slip (something that FedEx or UPS may not provide in raw format) or printing continuous feed image data (HTML) to a receipt printer.

Today, they're trying to print using the 2d printing (HTML, etc), but this often requires them to utilize a different device driver and worse, actually yields different results versus just using raw ZPL, EPL, ESCP, etc.

This enhancement is to allow raw printing to use Pixel features such as HTML, PDF, but then wrap them to the raw equivalent.

var data = [
   '^XA',
   { type: 'raw', format: 'image', flavor: 'base64' data: 'AAABBB[...]==',  options: { language: "ZPL" } },
   '^XZ'
];

Since we have the ability to rasterize PDF and HTML, there's no reason why we can't support these formats for raw printers too by rendering them, treating them as raster graphics, and then converting them to raw commands.

akberenz · 2016-07-12T14:19:04Z

Do we need to subset these new formats? As pdf, html, and image each have their own formats when used independantly. And this has even led to some confusion already, causing #70.

tresf · 2016-07-14T03:10:17Z

From our discussion, this will be an expansion of the API.

var data = 
['^XA', { 
   type: 'raw', format: 'image', flavor: 'file', data: 'assets/img/image_sample_bw.png', 
   options: { language: "ZPL" } 
}, '^XZ'];

akberenz · 2016-08-03T21:22:20Z

Feature added in 9c39650
Everything looks right when printing to a file, but you'll need to verify for me on a physical device.

tresf · 2016-08-04T05:35:27Z

Everything looks right when printing to a file, but you'll need to verify for me on a physical device.

Looks pretty good. In the case of the PDF, it only takes up about 2/3rds of the height and width of a 4x6 label. How do you suggest we specify PDF size?

HTML I had a bit more control over due to the pageWidth parameter.

Also, I think it may be time to add a radio button for the language type so that we can quickly switch between (e.g.) ESCP, ZPL and EPL.

akberenz · 2016-08-04T19:59:23Z

How do you suggest we specify PDF size?

Do you want to extend the pageWidth and pageHeight options to include pdf as well?

Also, I think it may be time to add a radio button for the language type

32ed9f1

tresf · 2016-08-04T21:09:46Z

Do you want to extend the pageWidth and pageHeight options to include pdf as well?

Sounds like a good plan. (bug was closed in error, please ignore)

akberenz · 2016-08-08T15:27:14Z

Adjusted with 5e7afd0

tresf · 2016-08-12T05:20:03Z

For the new sample page, let's specify the following:

EPL2    ZPLII
ESCP    EPCL

ESCP is the one I'm not too sure about. I know we use ESC * technique which is clearly defined in the ESCP2 manual, but I can't find much reference to ESCP1 anywhere, perhaps @lite1979 can dig up more information.

Also, no need to show Image X and Image Y for anything except EPL2 (or CPCL, if it gets added eventually).

Last, they should both default to zero.

tresf · 2016-08-12T05:45:53Z

Some testing:

For our 8.5 x 11 pdf_sample.pdf sent via EPL2 render width of 812 to the Zebra printer, this feature works great
When testing the fourbysix.pdf to the same printer, same, render width of 812 it prints very small in upper left corner.

Any idea why the smaller PDF is printed so small?

pdf_sample.pdf

[INFO] 2016-08-12 01:40:20,248 @ qz.common.TrayManager:?
    Allowed localhost to print to Zebra LP2844 Raw
[TRACE] 2016-08-12 01:40:20,248 @ qz.utils.PrintingUtilities:?
    Waiting for processor, 0/7 already in use
[DEBUG] 2016-08-12 01:40:20,249 @ qz.utils.PrintingUtilities:?
    Using qz.printer.action.PrintRaw to print
[DEBUG] 2016-08-12 01:40:20,249 @ qz.printer.PrintServiceMatcher:?
    Searching for PrintService matching Zebra LP2844 Raw
[DEBUG] 2016-08-12 01:40:20,249 @ qz.printer.PrintServiceMatcher:?
    Found 4 printers
[DEBUG] 2016-08-12 01:40:20,272 @ qz.printer.PrintServiceMatcher:?
    Found match: Zebra LP2844 Raw
[DEBUG] 2016-08-12 01:40:20,274 @ qz.utils.ShellUtilities:?
    Executing: [lpoptions, -p, ZDesigner_LP2844, -l]
[DEBUG] 2016-08-12 01:40:20,327 @ qz.utils.ShellUtilities:?
    Parsed default density from CUPS ZDesigner_LP2844: 203dpi
[DEBUG] 2016-08-12 01:40:20,328 @ qz.utils.ShellUtilities:?
    Executing: [lpoptions, -p, Zebra_LP2844_Raw, -l]
[DEBUG] 2016-08-12 01:40:20,346 @ qz.utils.ShellUtilities:?
    Executing: [lpoptions, -p, PDFwriter, -l]
[DEBUG] 2016-08-12 01:40:20,366 @ qz.utils.ShellUtilities:?
    Parsed default density from CUPS PDFwriter: 300dpi
[DEBUG] 2016-08-12 01:40:20,366 @ qz.utils.ShellUtilities:?
    Executing: [lpoptions, -p, EpsonTM88IV, -l]
[INFO] 2016-08-12 01:40:20,563 @ qz.printer.ImageWrapper:?
    Loading BufferedImage
[INFO] 2016-08-12 01:40:20,563 @ qz.printer.ImageWrapper:?
    Dimensions: 612x792
[INFO] 2016-08-12 01:40:20,563 @ qz.printer.ImageWrapper:?
    Initializing Image Fields
[INFO] 2016-08-12 01:40:20,564 @ qz.printer.ImageWrapper:?
    Converting image to monochrome
[INFO] 2016-08-12 01:40:20,576 @ qz.printer.ImageWrapper:?
    Packing bits
[INFO] 2016-08-12 01:40:20,577 @ qz.printer.ImageWrapper:?
    Initializing Image Fields
[INFO] 2016-08-12 01:40:20,578 @ qz.printer.ImageWrapper:?
    Converting image to monochrome
[INFO] 2016-08-12 01:40:20,591 @ qz.printer.ImageWrapper:?
    Packing bits
[INFO] 2016-08-12 01:40:20,592 @ qz.printer.ImageWrapper:?
    Generating byte array
[TRACE] 2016-08-12 01:40:20,597 @ qz.printer.action.PrintRaw:?
    Sending print job to printer
[DEBUG] 2016-08-12 01:40:20,598 @ qz.printer.action.PrintRaw:?
    PrintEvent on sun.print.UnixPrintJob@3cd5b36f
[DEBUG] 2016-08-12 01:40:20,720 @ qz.printer.action.PrintRaw:?
    PrintEvent on sun.print.UnixPrintJob@3cd5b36f
[DEBUG] 2016-08-12 01:40:20,720 @ qz.printer.action.PrintRaw:?
    PrintEvent on sun.print.UnixPrintJob@3cd5b36f
[DEBUG] 2016-08-12 01:40:20,720 @ qz.printer.action.PrintRaw:?
    PrintEvent on sun.print.UnixPrintJob@3cd5b36f
[TRACE] 2016-08-12 01:40:20,720 @ qz.printer.action.PrintRaw:?
    Print job received by printer
[INFO] 2016-08-12 01:40:20,721 @ qz.utils.PrintingUtilities:?
    Printing complete
[TRACE] 2016-08-12 01:40:20,721 @ qz.utils.PrintingUtilities:?
    Returning processor back to pool

fourbysix.pdf

[DEBUG] 2016-08-12 01:42:03,365 @ qz.printer.PrintServiceMatcher:?
    Searching for PrintService matching raw
[DEBUG] 2016-08-12 01:42:03,365 @ qz.printer.PrintServiceMatcher:?
    Found 4 printers
[DEBUG] 2016-08-12 01:42:03,383 @ qz.printer.PrintServiceMatcher:?
    Found match: Zebra LP2844 Raw
[DEBUG] 2016-08-12 01:42:31,599 @ qz.ws.PrintSocketClient:?
    Message: {"call":"print","promise":{},"params":{"printer":{"name":"Zebra LP2844 Raw"},"options":{"colorType":"color","copies":"1","density":"","duplex":false,"fallbackDensity":600,"interpolation":"","jobName":"","margins":"0","orientation":"","paperThickness":"","printerTray":"","rasterize":false,"rotation":"0","scaleContent":true,"size":null,"units":"in","altPrinting":false,"encoding":"","endOfDoc":"","perSpool":"1"},"data":["\nN\n",{"type":"raw","format":"pdf","flavor":"file","data":"file:///Users/tres/tray/assets/pdf_sample.pdf","options":{"language":"EPL","x":"0","y":"0","dotDensity":"single","xmlTag":"v7:Image","pageWidth":"812","pageHeight":""}},"\nP1,1\n"]},"timestamp":1470980551597,"uid":"9uzftj"}
[WARN] 2016-08-12 01:42:31,600 @ qz.ws.PrintSocketClient:?
    Bad signature on request
[INFO] 2016-08-12 01:42:32,375 @ qz.common.TrayManager:?
    Allowed localhost to print to Zebra LP2844 Raw
[TRACE] 2016-08-12 01:42:32,375 @ qz.utils.PrintingUtilities:?
    Waiting for processor, 0/7 already in use
[DEBUG] 2016-08-12 01:42:32,376 @ qz.utils.PrintingUtilities:?
    Using qz.printer.action.PrintRaw to print
[DEBUG] 2016-08-12 01:42:32,376 @ qz.printer.PrintServiceMatcher:?
    Searching for PrintService matching Zebra LP2844 Raw
[DEBUG] 2016-08-12 01:42:32,376 @ qz.printer.PrintServiceMatcher:?
    Found 4 printers
[DEBUG] 2016-08-12 01:42:32,393 @ qz.printer.PrintServiceMatcher:?
    Found match: Zebra LP2844 Raw
[DEBUG] 2016-08-12 01:42:32,395 @ qz.utils.ShellUtilities:?
    Executing: [lpoptions, -p, ZDesigner_LP2844, -l]
[DEBUG] 2016-08-12 01:42:32,679 @ qz.utils.ShellUtilities:?
    Parsed default density from CUPS ZDesigner_LP2844: 203dpi
[DEBUG] 2016-08-12 01:42:32,679 @ qz.utils.ShellUtilities:?
    Executing: [lpoptions, -p, Zebra_LP2844_Raw, -l]
[DEBUG] 2016-08-12 01:42:32,698 @ qz.utils.ShellUtilities:?
    Executing: [lpoptions, -p, PDFwriter, -l]
[DEBUG] 2016-08-12 01:42:32,717 @ qz.utils.ShellUtilities:?
    Parsed default density from CUPS PDFwriter: 300dpi
[DEBUG] 2016-08-12 01:42:32,717 @ qz.utils.ShellUtilities:?
    Executing: [lpoptions, -p, EpsonTM88IV, -l]
[INFO] 2016-08-12 01:42:33,361 @ qz.printer.ImageWrapper:?
    Loading BufferedImage
[INFO] 2016-08-12 01:42:33,362 @ qz.printer.ImageWrapper:?
    Dimensions: 288x432
[INFO] 2016-08-12 01:42:33,362 @ qz.printer.ImageWrapper:?
    Initializing Image Fields
[INFO] 2016-08-12 01:42:33,362 @ qz.printer.ImageWrapper:?
    Converting image to monochrome
[INFO] 2016-08-12 01:42:33,365 @ qz.printer.ImageWrapper:?
    Packing bits
[INFO] 2016-08-12 01:42:33,366 @ qz.printer.ImageWrapper:?
    Generating byte array
[TRACE] 2016-08-12 01:42:33,369 @ qz.printer.action.PrintRaw:?
    Sending print job to printer
[DEBUG] 2016-08-12 01:42:33,371 @ qz.printer.action.PrintRaw:?
    PrintEvent on sun.print.UnixPrintJob@47de58a7
[DEBUG] 2016-08-12 01:42:33,676 @ qz.printer.action.PrintRaw:?
    PrintEvent on sun.print.UnixPrintJob@47de58a7
[DEBUG] 2016-08-12 01:42:33,677 @ qz.printer.action.PrintRaw:?
    PrintEvent on sun.print.UnixPrintJob@47de58a7
[DEBUG] 2016-08-12 01:42:33,677 @ qz.printer.action.PrintRaw:?
    PrintEvent on sun.print.UnixPrintJob@47de58a7
[TRACE] 2016-08-12 01:42:33,677 @ qz.printer.action.PrintRaw:?
    Print job received by printer
[INFO] 2016-08-12 01:42:33,677 @ qz.utils.PrintingUtilities:?
    Printing complete
[TRACE] 2016-08-12 01:42:33,677 @ qz.utils.PrintingUtilities:?
    Returning processor back to pool

akberenz · 2016-08-12T15:35:58Z

Looks like I never had the pdf scale when the size was set..
1d4e577 should fix your issue.

tresf · 2016-08-12T21:53:59Z

@bberenz is there a good reason why the pageWidth and pageHeight are in pixels rather than units? Edit: Probably because we aren't sure of the printer DPI, huh?

akberenz · 2016-08-12T22:22:49Z

Because we don't take in a units option for raw printing.

tresf · 2016-08-12T22:33:23Z

So, I've tested this.

Against 203 dpi Zebra printer, pageWidth of 812 and results are pretty good. Here's a side-by-side of desired and actual.

The printable area seems to be slightly under 812 (203 * 4), so adjusting this to 800 seems to fix this in the right direction.

Against 180 dpi Epson receipt printer, pageWidth of 562.5 and results are dead on (or as close as they're going to get).

This looks good. We can open separate bug reports as needed. Closed via 9c39650 5e7afd0. This feature will be available in 2.1.

tresf added the enhancement label Apr 8, 2016

tresf added this to the 2.1 milestone Apr 29, 2016

tresf mentioned this issue Jul 14, 2016

Base64 raw images interpreted as URLs #70

Closed

tresf mentioned this issue Jul 25, 2016

Combining html and raw #84

Closed

tresf closed this as completed Aug 4, 2016

tresf reopened this Aug 4, 2016

tresf closed this as completed Aug 12, 2016

tresf added the pdfbox label Sep 7, 2016

tresf mentioned this issue Oct 14, 2016

Some config options ignored on Windows #117

Closed

tresf mentioned this issue Nov 8, 2017

Non-rasterize to honor rendering hints #249

Closed

tresf mentioned this issue Jan 4, 2018

How to print HTML data as raw data using Dot matrix printer? #82

Closed

tresf mentioned this issue Dec 5, 2018

Printing mixed content in the correct order #392

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Rasterize HTML, PDFs to Raw #19

Rasterize HTML, PDFs to Raw #19

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Rasterize HTML, PDFs to Raw #19

Rasterize HTML, PDFs to Raw #19

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