javascript - Direct Print after clicking - Stack Overflow

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I am using a JS function in my POS website which is:

<script type="text/javascript">
function printlayer(layer){
  var generator=window.open(",'name,");
  var layertext=document.getElementById(layer);
  generator.document.write(layertext.innerHTML.replace('Print Me'));
  generator.document.close();
  generator.print();
  generator.close();
}

When I click on Print button, it opens a new Print tab on screen but I want to print directly. Suppose I clicked on print, it should print directly. "IT SHOULD NOT OPEN THE PRINT TAB". I am using Thermal Receipt Printer: GPrinter Modal is: GP80160II Paper width: 80mm Print Speed: 160mm/sec.

This Picture is before clicking Print:

This Picture is After clicking (That I don't want): Please Help me. I am not able to do this. Thanks in advance

I am using a JS function in my POS website which is:

<script type="text/javascript">
function printlayer(layer){
  var generator=window.open(",'name,");
  var layertext=document.getElementById(layer);
  generator.document.write(layertext.innerHTML.replace('Print Me'));
  generator.document.close();
  generator.print();
  generator.close();
}

When I click on Print button, it opens a new Print tab on screen but I want to print directly. Suppose I clicked on print, it should print directly. "IT SHOULD NOT OPEN THE PRINT TAB". I am using Thermal Receipt Printer: GPrinter Modal is: GP80160II Paper width: 80mm Print Speed: 160mm/sec.

This Picture is before clicking Print:

This Picture is After clicking (That I don't want): Please Help me. I am not able to do this. Thanks in advance

• javascript
• html

Share Improve this question Follow edited Jan 26, 2019 at 7:57 Kami asked Jan 26, 2019 at 7:42 KamiKami 4311 gold badge11 silver badge77 bronze badges 9

• You are calling window.open(). If you want to print directly, don't do that. Just call print(). If necessary, hide everything you don't want to print, for instance by using @media rules. – user5734311 Commented Jan 26, 2019 at 7:44
• @ChrisG I tried .print also, but there are some issues. It shows popup print screen – Kami Commented Jan 26, 2019 at 7:49
• @ChrisG see my question now. I Added Pictures now. – Kami Commented Jan 26, 2019 at 7:58
• I created a PHP app for a friend to print A4 invoices; the key is to use CSS like width: 19cm so the screen document translates 1:1 to paper. – user5734311 Commented Jan 26, 2019 at 8:00
• That is how chrome works and how any other browser would. You can't do anything about it – Ikhlak S. Commented Jan 26, 2019 at 8:03

 |  Show 4 more ments

1 Answer 1

Sorted by: Reset to default 3

If you are using IE browser then this can be achieved. But in firefox and chrome we can't bypass the dialogue box. You can avoid the print dialog from any application by using some cloud printing REST API.

Select a printer and silently print(SO)

https://developers.google./cloud-print/docs/appInterfaces

https://www.printnode./docs/api/curl/

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