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October 2022 - Firefox 106 printer margin problem
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There is a change in the way some of the newer versions of Firefox are handling printing and it's creating situations where the left margin of a receipt is not printing properly.  Additionally, the header and the footer may print unintended blank spaces at the top and bottom of the page.

|ff106.0010.jpg|

In order to fix these problems, you can do the following:

1. Open a new window in Firefox and type "about:config" and click on the button that says "Accept the Risk and Continue"

|ff106.0020.png|

2. Type "print.printer" in the search bar

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3. Scroll through the results looking for the name of your receipt printer after "print.printer" - in my case my receipt printer is named "EPSON_TM-T88III_ReceiptE4"

|ff106.0040.png|

4. Set all of the following settings for your printer to:

- print.printer_YOUR_RECEIPT_PRINTER.print_bgcolor = false
- print.printer_YOUR_RECEIPT_PRINTER.print_bgimages = false
- print.printer_YOUR_RECEIPT_PRINTER.print_footercenter = (blank)
- print.printer_YOUR_RECEIPT_PRINTER.print_footerleft = (blank)
- print.printer_YOUR_RECEIPT_PRINTER.print_footerright = (blank)
- print.printer_YOUR_RECEIPT_PRINTER.print_headercenter = (blank)
- print.printer_YOUR_RECEIPT_PRINTER.print_headerleft = (blank)
- print.printer_YOUR_RECEIPT_PRINTER.print_headerright = (blank)
- print.printer_YOUR_RECEIPT_PRINTER.print_ignore_unwriteable_margins = false
- print.printer_YOUR_RECEIPT_PRINTER.print_margin_bottom = 0
- print.printer_YOUR_RECEIPT_PRINTER.print_margin_left = 0
- print.printer_YOUR_RECEIPT_PRINTER.print_margin_right = 0
- print.printer_YOUR_RECEIPT_PRINTER.print_margin_top = 0
- print.printer_YOUR_RECEIPT_PRINTER.print_shrink_to_fit = true

There may be other "print.printer_YOUR_RECEIPT_PRINTER" settings, but, in general, they can be ignored so long as these are set correctly.

|ff106.0050.png|

If this does not solve your problem or if you have other printing issues please let us know at |nexthelp|