re :Print preview Maybe your margins are too wide so nothing can be shown.

What 'Scale' % is selected ? Suggest you initally use 100%

click on 'Page Setup' button. select 'Margins & Header/Footer' tab What are the Margins ? If using millimeters: suggest you set up Top, Bottom, Left , right to use 12.7

If using inches: suggest you set up Top, Bottom, Left , right to use 0.5

click on 'OK' see image below as guide.

Thanks for your response. Scale is 100%. When I click on Page Setup button I just get an empty box, the top of which I cannot see or move to.

Did you recently install a new printer? If so, it might help to reset the print_printer preference in Tools/Options/Advanced/General/Config. editor (right-click a pref., Reset, OK to close Options).

What's your TB version? There was a version in the 52 branch that printed blanks. I think one workaround was to change the paper size to A4.

Printer (Canon MP550) has been here for a few years now. Paper is set at A4. Went to the reset process as above, there are many lines for the printer in 'bold'. Do I need to reset all of them? There are also lines for a printer I no longer use. Should I delete them? Still not working. Thanks for your help.

Forgot to mention TB version 60.3.3

Make sure Printer (Canon MP550) is set as your default printer on computer.

re :Went to the reset process as above, there are many lines for the printer in 'bold'. Do I need to reset all of them? There may be many print.printer_name of printer etc settings.

But sfhowes said: the print_printer preference in Tools/Options/Advanced/General/Config. editor (right-click a pref., Reset, OK to close Options). there should only be the one print_printer preference. Reset just the print_printer Close window. click on 'OK' REstart Thunderbird to ensure ir picks up your default printer. Test print preview.

The important pref. is print_printer. There may be prefs. that refer to obsolete printers, but they don't normally cause any problems.

When this first came up, there was much discussion in the bug report, including one that might be relevant to the current TB.

Still no good. I have checked the underscores and -1.00 values as per the problem @TB52. They seem to be correct. I also find it strange that I can't access the 'page setup' box as reported previously.

In thunderbird Help > Troubleshooting Information click on 'Copy text to clipboard' button In this forum question, right clickin a 'Post a Reply' text box and select 'Paste'. You can edit/remove all data except anything that starts with 'print', so forum can see what 'print' data is being used.