Fx 86.0 prints upside down on second side of paper
Categories
(Core :: Printing: Setup, defect)
Tracking
()
People
(Reporter: jliebson, Unassigned)
Details
User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:86.0) Gecko/20100101 Firefox/86.0
Steps to reproduce:
Changed About:Config print.tab back to true from false problem persisted.
Actual results:
As in Bug 1689412, Fx prints upside down on second side of page.
Using same printer setup as in Firefox, Word Perfect prints properly.
Expected results:
Side two should print in same orientation as side one.
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Comment 1•4 years ago
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The Bugbug bot thinks this bug should belong to the 'Core::Printing: Setup' component, and is moving the bug to that component. Please revert this change in case you think the bot is wrong.
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Comment 2•4 years ago
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Hi John Liebson,
Thanks for reporting this!
This looks like it might be related to the behavior we are seeing in Bug 1694484.
If possible, could you take a look at the instructions in comment number 8 (https://bugzilla.mozilla.org/show_bug.cgi?id=1694484#c8) and report back if this matches your case?
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Updated•4 years ago
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Comment 3•4 years ago
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(in short: if you search about:config for duplex, do you happen to see any 2 values, particularly for the printer that you've been printing with?)
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Comment 4•4 years ago
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Only a few entries such as "print.printer_Brother_MFC-9340CDW_Printer.print_duplex", and also for Brother PC-Fax printing, none of which mean anything to me. Those are both Boolean, with the digit 2. As advised by Erik, I clicked on the first entry, then changed it to 1, but as soon as I close About:Config, and reopen it, the number 1 has reverted to a 2. This seems to be telling me that I am not making the change properly.
As for a printer that I have been using, I have only the MFC-9340CDW, which I have had for approximately three and one-half years.
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Comment 5•4 years ago
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(In reply to John Liebson from comment #4)
Only a few entries such as "print.printer_Brother_MFC-9340CDW_Printer.print_duplex", and also for Brother PC-Fax printing, none of which mean anything to me. Those are both Boolean, with the digit 2. As advised by Erik, I clicked on the first entry, then changed it to 1, but as soon as I close About:Config, and reopen it, the number 1 has reverted to a 2. This seems to be telling me that I am not making the change properly.
As for a printer that I have been using, I have only the MFC-9340CDW, which I have had for approximately three and one-half years.
Just came back to report that, after changing the 2 to a 1, I clicked on the second MFV_9340cdw entry, whereupon the 1 I had entered changed back to a 2, so obviously (or even obliviously), I'm not changing anything correctly.
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Comment 6•4 years ago
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(In reply to John Liebson from comment #5)
Just came back to report that, after changing the 2 to a 1, I clicked on the second MFV_9340cdw entry, whereupon the 1 I had entered changed back to a 2, so obviously (or even obliviously), I'm not changing anything correctly.
Hmm, that is curious that the numbers are reverting back.
When you click on the number to change it from a 2 to a 1, on the right side of the text box, there should be two icons: a check mark and a trashcan.
To ensure that the settings are being saved, make sure to click the check-mark icon, at which point it should revert back to a pencil icon (meaning the changes have been applied, and you can edit it again).
I think if you change the value, but close about:config or move to a different preference without clicking on the check-mark icon, the changes will not finalize.
Could you give that a try and see if it sticks this time? Otherwise, we may have to look deeper into what is going on here.
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Reporter | |
Comment 7•4 years ago
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Well,, Erik, what am I going to do for entertainment now that my computer sends the data to the printer, which in turn prints page 2 right-side up?
Oh, I know: I asked my wife if she were having any wrong-way printing, she said she was not. As she had not yet updated to Fx 86.0, I looked at the duplex settings on her computer. There were two for the printer, the first having a 2, and the second the abstruse entry of -437918235, which I think is the same number string as for the Snagit printer, which is still installed on her computer. (I'm in the process of getting her machine ready to transfer everything to my Dell 8900 XPS to replace her Dell Inspiron, which was mine before I gave it to her as her first computer. Now that I have a 8930 XPS, between the two of us, we are cleaning up the Inspiron.) I printed a document from the Inspiron, which printed correctly. I then updated Firefox to 86.0, which then printed upside down.
Thanks to your succinct instructions, I am going to change that 2 to a 1 to see if that fixes the printing. Your assistance is greatly appreciated for a problem of which I had a sum total of no knowledge whatsoever.
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Comment 8•4 years ago
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(In reply to John Liebson from comment #7)
Well,, Erik, what am I going to do for entertainment now that my computer sends the data to the printer, which in turn prints page 2 right-side up?
Hah! It's pretty hard to beat the entertainment that comes from debugging print settings, but I'm sure you'll manage :)
We're very happy to help, and especially thanks to @dholbert for all of his investigation work into what caused this behavior and finding solutions for it in Bug 1694484.
I just want to confirm that this means everything is now working as expected for you (and hopefully for your wife too) before I mark this report as resolved.
Thanks again!
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Comment 9•4 years ago
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I think I understand what caused this, and I've filed bug 1694879 to cover the general issue. I'm marking this bug as a duplicate of that one. Thanks very much for the report -- the confirmation about the presence of a 2 value was extremely helpful in confirming my theory of what's going on.
In the meantime: on any machines where you're hitting this, you should be able to work around it by simply deleting all of the .duplex about:config pref values, or un-checking & re-checking the "print on both sides" checkbox in the new shiny Firefox print dialog. (Or, if you're still seeing the system print dialog, you can click through to "Preferences" for your printer there and confirm that the selected duplex mode is the one that you actually want, which is probably "long-edge".)
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Comment 10•4 years ago
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Erik, yes, both computers now print correctly, thank you.
As an aside, the first thing that I found after the Firefox update was that the printer's Print Profile, which is always set to two-sided, had reverted to General Print (Color). How that happened, I shall never know; all I know is that before I updated Firefox to 86.0, all printing was two-sided, after the update it was no longer two-sided. I changed that quickly, whereupon I found that the world was upside down on the reverse side of the page.
It is not actually known if General Cornwallis had the band play "The World Turned Upside Down" as he surrendered ending the Siege of Croydon, and if it did play, which of at least three different tunes by that name they played. What I do know is that for a while, my world seemed to have turned upside down.
As far as I can tell, the world has reverted to what seems to me to be right-side up, thanks to your assistance.
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Comment 11•4 years ago
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Fixed my problem (printing upside-down on even-numbered pages) as well. I deleted the entry, which the print process then re-created. The about:config entry changed from a "2" to a "1".
Description
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