Hans Hagen via ntg-context <ntg-context@ntg.nl> writes:

> On 10/9/2022 8:03 AM, Max Chernoff via ntg-context wrote:
>> Hi all,
>>> I use LuaMetaTeX 2.10 20220918 + ConTeXt LMTX 2022.09.11.
>>> Here's a tiny test document, I disabled PDF compression but it also
>>> doesn't work with the default settings.
>>> \setupbackend[level=0,compresslevel=0]
>>> \starttext
>>> Just a line of text.
>>> \stoptext
>>> When I print this "directly" (i.e. sending the raw PDF to the printer)
>>> on a Ricoh MP3053 or on a Samsung CLP-680DW, I just get an empty page.
>> Just to add some more data points, I tested the attached MkXL file
>> on
>> two printers, and the file printed perfectly on both.
>> Printer 1:
>>     Brother HL-3170CDW
>>     Printed via running "cat test.mkxl.pdf | nc Colour-Printer.local 9100"
>>     Printer 2:
>>     HP M227f LaserJet
>>     Printed from the PDF file on a USB stick
>>     Neither printer is anything fancy; they're both fairly
>> inexpensive home
>> laser printers. I've got a much older Brother laser printer that I may be
>> able to test with next week.
>> Sorry I can't be of more help.
> Leah and I are zooming in on the issue. It might relate to wrong font
> matrix default behavior in the pdf printer driver, and GS got a fix
> for that long ago, so maybe old printers with not-updated drivers can
> be affected.
> Once we're confident that we can catch it Leah (who does the low level
> introspective testing with viewers, printers and tools) likely will
> report on it and there will be a test file for users to test if what
> we do is okay before we apply the safeguard.

There's a write up now on the issue:

Leah Neukirchen  <l...@vuxu.org>  https://leahneukirchen.org/
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