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On 6/22/2025 4:00 PM, J. P. Gilliver wrote:
Just thought I'd mention this in case it's frustrating anyone else.
I have a printer that can do double-sided: it's a Samsung 775, but
what follows may apply to other models. (It can even do booklets;
obviously that's really part of the driver software. [Recent versions
of Acrobat Reader can do booklets, if you want to, even if your
printer driver doesn't, so if you want a booklet, "print" to a PDF
then print that.])
I installed the printer under Windows 7 - IIRR, I went to get the
driver (HP now handle Samsung printers), and it installed and ran
fine. I even printed the odd booklet.
(By "booklet", I mean half-size - printing four pages to a sheet, in
the correct order that you take the output stack and fold it.)
When I moved to this W10 machine, I assumed I'd have to fetch the
driver again, but no - I just connected the printer, and W10 installed
the driver. (OK, it probably fetched it from somewhere, but I didn't
have to do battle with some website.)
So - I'd been using it for a while (printing single-sided, since I run
it mostly on junk mail, a large proportion of which is only printed on
one side!). Then I wanted to print a booklet (the list of Thunderbird keyboard shortcuts someone kindly pointed me to). So, load some paper
blank on both sides (i. e. normal paper!), and set to.
To cut a long story short, it was unable to print double-sided
(obviously needed that facility to do booklets - though the Acrobat
booklet utility will do one side, you then turn over, but you have to
fiddle with the order).
I then _eventually_ - poking around in settings somewhere - found
"duplex unit - not installed", or something like that. There was a
drop-down kist [of two options], and I could select "installed" -
trivial.
But I'm pretty sure I never had to tell Windows 7 this; in fact I
don't know if this printer is _available_ without duplex ability. (I
bought it second-hand.)
Just thought I'd mention it - it hadn't occurred to me that Windows 10
would think this aspect optional, when 7 either didn't, or
automatically detected that the unit was there - in case anyone else
is getting similarly frustrated!
I'm running Windows 10, and I have a couple of duplex-capable printers.
The online version of the user guide for the newer one is dated 2019,
and the specs say it's compatible with Windows 10. The user guide for
the older one is dated 2009, and the specs don't mention Windows 10,
which as far as I can tell was released in 2015.
The newer printer always shows up as having the duplex unit installed.
The driver for the older printer sometimes "forgets" that the printer
has a duplex unit installed, so I have to go into the settings like you did.
My guess is that it comes down to a driver quality issue. Drivers for
older printers might not get the same level of testing as drivers for
newer, shinier ones.
You might be able to write a PowerShell script that would wake up once
in a while, call Get-PrinterProperty passing it the name of your
printer, check to see if the Config:DuplexUnit property is set to
Installed, and call Set-PrinterProperty to set it if necessary.
Louis
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<div class="moz-cite-prefix">On 6/22/2025 4:00 PM, J. P. Gilliver
wrote:<br>
</div>
<blockquote type="cite" cite="mid:1039ud6$j1mi$
4@dont-email.me">Just
thought I'd mention this in case it's frustrating anyone else. <br>
<br>
I have a printer that can do double-sided: it's a Samsung 775, but
what follows may apply to other models. (It can even do booklets;
obviously that's really part of the driver software. [Recent
versions of Acrobat Reader can do booklets, if you want to, even
if your printer driver doesn't, so if you want a booklet, "print"
to a PDF then print that.]) <br>
<br>
I installed the printer under Windows 7 - IIRR, I went to get the
driver (HP now handle Samsung printers), and it installed and ran
fine. I even printed the odd booklet. <br>
<br>
(By "booklet", I mean half-size - printing four pages to a sheet,
in the correct order that you take the output stack and fold it.)
<br>
<br>
When I moved to this W10 machine, I assumed I'd have to fetch the
driver again, but no - I just connected the printer, and W10
installed the driver. (OK, it probably fetched it from somewhere,
but I didn't have to do battle with some website.) <br>
<br>
So - I'd been using it for a while (printing single-sided, since I
run it mostly on junk mail, a large proportion of which is only
printed on one side!). Then I wanted to print a booklet (the list
of Thunderbird keyboard shortcuts someone kindly pointed me to).
So, load some paper blank on both sides (i. e. normal paper!), and
set to. <br>
<br>
To cut a long story short, it was unable to print double-sided
(obviously needed that facility to do booklets - though the
Acrobat booklet utility will do one side, you then turn over, but
you have to fiddle with the order). <br>
<br>
I then _eventually_ - poking around in settings somewhere - found
"duplex unit - not installed", or something like that. There was a
drop-down kist [of two options], and I could select "installed" -
trivial. <br>
<br>
But I'm pretty sure I never had to tell Windows 7 this; in fact I
don't know if this printer is _available_ without duplex ability.
(I bought it second-hand.) <br>
<br>
Just thought I'd mention it - it hadn't occurred to me that
Windows 10 would think this aspect optional, when 7 either didn't,
or automatically detected that the unit was there - in case anyone
else is getting similarly frustrated! <br>
</blockquote>
<br>
I'm running Windows 10, and I have a couple of duplex-capable
printers. The online version of the user guide for the newer one is
dated 2019, and the specs say it's compatible with Windows 10. The
user guide for the older one is dated 2009, and the specs don't
mention Windows 10, which as far as I can tell was released in 2015.<br>
<br>
The newer printer always shows up as having the duplex unit
installed.<br>
<br>
The driver for the older printer sometimes "forgets" that the
printer has a duplex unit installed, so I have to go into the
settings like you did.<br>
<br>
My guess is that it comes down to a driver quality issue. Drivers
for older printers might not get the same level of testing as
drivers for newer, shinier ones.<br>
<br>
You might be able to write a PowerShell script that would wake up
once in a while, call Get-PrinterProperty passing it the name of
your printer, check to see if the Config:DuplexUnit property is set
to Installed, and call Set-PrinterProperty to set it if necessary.<br>
<br>
Louis<br>
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