gimp-print-devel

Re: [Gimp-print-devel] Inquiry Regarding Custom Inkset Control and ESC/P2 vs. ESC/P-R Clarification

[Solomon P. <pi...@sh...>]

On Tue, Jun 10, 2025 at 02:53:28PM -0700, Kevin Hu via Gimp-print-devel wrote:
> Information about ESC/P-R appears scarce, especially regarding how it 
> differs from ESC/P2. Given that Gutenprint lists support for some 
> ESC/P-R printers (like the XP-15000), is it appropriate to assume that 
> ESC/P-R largely overlaps with ESC/P2 but includes additional 
> high-level commands, or is it fundamentally distinct?

It is my understanding that ESC/P-R presents only higher-level commands 
whereas ESC/P2 operates at a fairly low level.  /P2 gives you full 
control of the individual ink dots but requires you to handle all of the 
color->ink mapping, dot size/patterns, density, dithering, etc to yield 
usable output.  /P-R takes in a RGB (and presumably other colorspaces) 
raster and the desired output parameters (media, resolution, quality, 
etc etc) and the printer handles mapping that to the individual ink 
droplets.

Some printers support both command languages, but others only support 
one. (typically /P-R for modern consumer-grade models, /P2 for 
commercial/industrial gear)

> Despite thorough review of the documentation on rasterization and 
> color handling, I remain slightly concerned whether printers perform 
> any additional internal processing of the rasterized data we 
> send—particularly, could commanding specific CMY channels 
> inadvertently activate the K channel in the printer's internal 
> processing?

I can't speak authoratitively on all implementations of ESC/P2, but it 
is my understanding that they do not perform any internal processing of 
the data they are supplied.  Gutenprint itself will only utilize a K 
channel if so requested.

(ESC/P-R by defninition does all sorts of processing to map the input 
raster to ink dots. I have no idea how much customization is allowed)

> Does this mean that for printers with min_nozzles equal to
> the total nozzle count, all nozzles must actively be used at some point
> during each print cycle? Does this mean that for full control of individual
> channels, we need to select printers that do not require all of the nozzles
> used?

My understanding is that this means the printer may require that data 
for a given ink channel may always need to be present.  However, that data 
can be completely "blank", ie no ink gets deposited.

 - Solomon
-- 
Solomon Peachy			      pizza at shaftnet dot org (email&xmpp)
                                      @pizza:shaftnet dot org   (matrix)
Dowling Park, FL                      speachy (libera.chat)

[Gimp-print-devel] Inquiry Regarding Custom Inkset Control and ESC/P2 vs. ESC/P-R Clarification

[Kevin Hu <kv...@be...>]

Hello!
I am Kevin, a student researcher at UC Berkeley working on creating prints
to test people's color vision. A critical component of our research
involves using a custom inkset and achieving colorimetric accuracy, which
requires precise, individual control of each ink channel, bypassing the
standard CMYK color processing used by commercial software like Printfab.
Currently, our setup inadvertently activates the K (black) channel to
produce grayscale when we attempt to independently control multiple ink
channels, causing significant issues.

Presently, we resort to using two printers, each managing two inks. This
approach introduces alignment and accuracy challenges. Thus, we seek a
solution by potentially customizing our own printer driver, integrating all
links within a single printer and possibly expanding the number of inks
used.

After reviewing the extensive documentation and code provided by
Gutenprint—which has been invaluable—we concluded that directly
communicating with Epson printers via the ESC/P2 language seems most
viable. However, several questions arose during our exploration:
Upon consulting Epson’s specifications, we've observed that several current
models (e.g., ET-8550, XP-15000) seem to utilize ESC/P-R rather than ESC/P2
according to Epson. Information about ESC/P-R appears scarce, especially
regarding how it differs from ESC/P2. Given that Gutenprint lists support
for some ESC/P-R printers (like the XP-15000), is it appropriate to assume
that ESC/P-R largely overlaps with ESC/P2 but includes additional
high-level commands, or is it fundamentally distinct?

Despite thorough review of the documentation on rasterization and color
handling, I remain slightly concerned whether printers perform any
additional internal processing of the rasterized data we send—particularly,
could commanding specific CMY channels inadvertently activate the K channel
in the printer's internal processing?

In the driver file section of your documentation, it states: "Some printers
require that all of the nozzles be used. Those printers will set
min_nozzles and/or min_black_nozzles to the same value as nozzles and/or
black_nozzles." Does this mean that for printers with min_nozzles equal to
the total nozzle count, all nozzles must actively be used at some point
during each print cycle? Does this mean that for full control of individual
channels, we need to select printers that do not require all of the nozzles
used?

Thank you very much for developing such comprehensive documentation and a
versatile driver, both of which have significantly aided our research
efforts. We look forward to your insights and guidance.
Warm regards, Kevin

[Gimp-print-devel] Linux Google OS and print

[Patrick R. <rul...@gm...>]

Hello, I've been a Windows user since 1998. I've also always been
interested in Linux versions, mainly through live CDs and then later
through installation on older machines, especially since the end of
Windows 7, to install them on the PCs of people over 75 who discovered
computers late and don't have the desire or the means to upgrade their
PCs.
I often have the same problem: installing their (not always so) old
printer that Linux doesn't recognize. After a lot of research, I came
across Gutenprint, and I thank you for it. Honestly, I haven't found
an ideal version of a Linux OS (Zorin, in the end) that would be
capable of doing so without impacting the understanding of the people
in question, except perhaps Chrome OS in Flex version, where they have
everything they need to consult the sites essential to the functioning
of an average citizen: a browser they know with their photo and
document universe and a natural connection to their Android phone and
nothing else! But you know all that. My question is: Could gutenprint
be installed in Chrome OS flex and how to do it?

CDLT

PR

[Gimp-print-devel] compatibilité

[Gilles Baumont-Le P. <gil...@gm...>]

Bonjour j’ai regardé la liste des imprimantes compatibles il semble que la EPSON ET 8500
ne soit pas dans votre liste
Est-elle compatible ?
je suis sur Mac OS Séquoia 15-5
Merci de votre retour

J’ai un gros problème avec le pilote EPSON / lightroom Classifias
Les paramètres d’imprimante n’apparaissent plus dans la fenêtre
et Epson ne trouve pas de solution
Merci de votre aide

Bien cordialement
Gilles




Gilles Baumont - Le Prestre
12 rue Clemenceau
NANTES
44000
•
06 23 28 02 71
09 54 87 69 59
•
www.baumont.fr

Re: [Gimp-print-devel] Questions about Gutenprint

[שחר בן ח. <sha...@gm...>]

Dear Till,

Thank you for explaining the WSL-based approach. I have two follow-up
questions:

1) The WSL method makes sense in a development environment, but for a
commercial photobooth product I need something easy for customers to
install with minimum effort as possible. Do you know of any examples where
a company has packaged Gutenprint under WSL (or a similar Linux-in-Windows
driver stack) as a polished, customer-friendly installer? Is it possible?

2) From your experience, do you think working with DEVMODE or Win32 APIs
might work with the original driver for my needs (2×6 strip-cut option
automatically)?

‫בתאריך יום ג׳, 3 ביוני 2025 ב-14:11 מאת ‪Till Kamppeter‬‏ <‪
til...@gm...‬‏>:‬

> You can run Linux printer drivers under Windows. The central component
> needed
> for that is WSL (Windows Subsystem for Linux). With this the driver work
> in a
> Linux environment embedded in Windows and makes itself available to
> Windows'
> printing environment as an emulation of a driverless IPP printer
> (Mopria-compatible).
>
> See this HOWTO:
>
> https://openprinting.github.io/wsl-printer-app/
>
> and also the older version, without Snap and compiling components, so
> easier in
> case you need to modify Gutenprint:
>
> https://openprinting.github.io/wsl-printer-app-compile/
>
> I hope this helps
>
>     Till
>
>
> On 6/1/25 13:34, שחר בן חמו wrote:
> > Dear Gutenprint Team,
> >
> > I’m developing a Windows-based photobooth product and am currently
> exploring
> > options for automatic printing with strip cutting (specifically, cutting
> a 4x6"
> > photo into two 2x6" strips) using dye-sublimation printers such as the
> DNP DS-
> > RX1/DS620, Mitsubishi CP-D80/D90, and Citizen CX/CY series.
> >
> > I understand that Gutenprint offers support for some of these printers
> on Linux
> > via CUPS and has implemented advanced capabilities such as multi-cut and
> strip
> > printing through custom PPDs. I’ve read references to Gutenprint’s
> support for
> > enabling 2-inch cutting with these printers, which is exactly what I
> need.
> >
> > However, since my target environment is Windows, I am trying to
> determine
> > whether Gutenprint or any related components (e.g., via a
> CUPS-on-Windows setup,
> > or exporting PPD capabilities to another stack) could be feasible in my
> case.
> > Alternatively, I’m considering using the Windows Print Spooler and Win32
> API
> > with the manufacturers’ official drivers, potentially modifying DEVMODE
> settings
> > to toggle the cutter programmatically.
> >
> > Given that background, I’d like to ask:
> >
> >   *
> >
> >     Do you believe Gutenprint (or any part of its architecture) can be
> >     effectively used on Windows to enable the kind of strip cutting I
> need?
> >
> >   *
> >
> >     Is there any way to leverage the Gutenprint drivers or PPD logic
> outside of
> >     CUPS (e.g., as a reference for building Windows-compatible
> workflows)?
> >
> >   *
> >
> >     In your experience, does the Windows Print Spooler/DEVMODE approach
> offer
> >     enough control to reliably achieve 2x6 cutting, or is Gutenprint
> (via CUPS/
> >     Linux) a more stable route?
> >
> > Any guidance or thoughts you could share would be deeply appreciated.
> I'm happy
> > to provide more technical details if needed.
> >
> > Thank you for your time and for the fantastic work on Gutenprint.
> >
> > Best regards,
> > Shahar.
> >
> >
> >
> > _______________________________________________
> > Gimp-print-devel mailing list
> > Gim...@li...
> > https://lists.sourceforge.net/lists/listinfo/gimp-print-devel
>
>

Re: [Gimp-print-devel] [SPAM] Troubleshoot - Canon G3411

[Solomon P. <pi...@sh...>]

On Tue, May 27, 2025 at 11:57:09AM +0400, H Noor wrote:
> Could you please guide me on how to install the scanner driver for the
> Canon G3411? It is connected to our home Wi-Fi, but I am unable to scan
> using my MacBook.

Gutenprint stricly handles _printing_.  Scanning support (if any) is 
provided by other software, such as SANE:

  http://www.sane-project.org/

> *This e-mail message and its attachment(s) are confidential and intended
> solely for the recipient(s) . If you are not the intended recipient or have
> received it in error, please notify the sender and delete it and any
> attachment(s) immediately from your system. If you are not the intended
> recipient, you must not forward it or copy or disclose its contents to any
> other person. E-mail communication systems are not secure and therefore the
> sender or our company does not accept responsibility for the contents of
> this message and its attachment(s). Due to the risks of the e-mail
> communication systems, the security and integrity of messages may not be
> protected or messages may contain viruses. Although this message and its
> attachments are scanned for known viruses, our company does not warrant
> that it is virus-free or does not accept any liability for any damage
> caused to your system by any virus transmitted by this message.*

FYI, sending this sort boilerplate crap to publicly archived mailing 
lists is a complete waste of elctrons.  Heck, it's a complete waste of 
electrons in *any* context, and carries precisely *zero* legal weight 
with random third parties that don't already have a signed 
confidentialty agreement with you.

 - Solomon
-- 
Solomon Peachy			      pizza at shaftnet dot org (email&xmpp)
                                      @pizza:shaftnet dot org   (matrix)
Dowling Park, FL                      speachy (libera.chat)

Re: [Gimp-print-devel] Questions about Gutenprint

[Solomon P. <pi...@sh...>]

On Sun, Jun 01, 2025 at 02:34:05PM +0300, שחר בן חמו wrote:
> However, since my target environment is Windows, I am trying to determine
> whether Gutenprint or any related components (e.g., via a CUPS-on-Windows
> setup, or exporting PPD capabilities to another stack) could be feasible in
> my case. Alternatively, I’m considering using the Windows Print Spooler and
> Win32 API with the manufacturers’ official drivers, potentially modifying
> DEVMODE settings to toggle the cutter programmatically.

Serious question: Why Windows?  It is an objectively poor platform for 
this sort of thing, especially if you deliberately try to bypass 
Windows' own printing infrastructure.

(Meanwhile, DNP's Windows drivers for these printers fully support 2x6" 
 strips, and I assume there is a programmic way for applications to 
 request specific print options when using the Windows printing APIs)

>    Do you believe Gutenprint (or any part of its architecture) can be
>    effectively used on Windows to enable the kind of strip cutting I need?

It's certainly _possible_ but it's creating a lot of extra work for yourself.

(I can't comment on the technical ability of CUPS to run _natively_ 
 under Windows but I know of folks that (1) manually generate rendered 
 files using their application or (2) invoke the Gutenprint CUPS filter 
 under Windows to produce rendered files and then (3) use the 
 selphy_print backend to handle communication with the printer.  In all 
 cases their application handles queueing/spooling/state.  They only did 
 this because they had a large legacy codebase that they considered infeasible
 to port)

>    Is there any way to leverage the Gutenprint drivers or PPD logic outside
>    of CUPS (e.g., as a reference for building Windows-compatible workflows)?

In the sense that the source code for all of this is provided under 
F/OSS terms, it's usable as a reference.  But you can cross-compile the 
binaries to run under Windows and execute them directly.  PPDs are still 
used for figuring out and specifying configurable options even if you 
don't use the rest of the CUPS infrastructure (eg for spooling etc)

>    In your experience, does the Windows Print Spooler/DEVMODE approach
>    offer enough control to reliably achieve 2x6 cutting, or is Gutenprint (via
>    CUPS/Linux) a more stable route?

I'm not familiar with the nuances of Windows's printing APIs, but I have 
to imagine it is more "reliable" or "stable" to use the infrastructure 
that Windows provides versus effectively rolling your own custom 
approach. (Assuming that it can provide the technical capabilities you 
require)

Meanwhile, as Till already pointed out, another approach is to run 
CUPS+Gutenprint natively under WSL, which is effectively a full-featured 
Linux VM running under Windows.  That still leaves the question of how 
your photobooth application would interact with the printer, but it is 
my understanding that the latest Windows 11 release provides a native 
IPP print client, and if that's not viable for whatever reason there are 
multiple third-party IPP client libraries. Or you could also roll your 
own minimal interface using curl or some other http library.

(This is because CUPS provides a usable IPP experience for "classic" 
PPD-based printer drivers.  Though there are some annoying bugs if 
you're not on the latest release..)

Best of luck,

 - Solomon
-- 
Solomon Peachy			      pizza at shaftnet dot org (email&xmpp)
                                      @pizza:shaftnet dot org   (matrix)
Dowling Park, FL                      speachy (libera.chat)

Re: [Gimp-print-devel] Questions about Gutenprint

[Till K. <til...@gm...>]

You can run Linux printer drivers under Windows. The central component needed 
for that is WSL (Windows Subsystem for Linux). With this the driver work in a 
Linux environment embedded in Windows and makes itself available to Windows' 
printing environment as an emulation of a driverless IPP printer 
(Mopria-compatible).

See this HOWTO:

https://openprinting.github.io/wsl-printer-app/

and also the older version, without Snap and compiling components, so easier in 
case you need to modify Gutenprint:

https://openprinting.github.io/wsl-printer-app-compile/

I hope this helps

    Till


On 6/1/25 13:34, שחר בן חמו wrote:
> Dear Gutenprint Team,
> 
> I’m developing a Windows-based photobooth product and am currently exploring 
> options for automatic printing with strip cutting (specifically, cutting a 4x6" 
> photo into two 2x6" strips) using dye-sublimation printers such as the DNP DS- 
> RX1/DS620, Mitsubishi CP-D80/D90, and Citizen CX/CY series.
> 
> I understand that Gutenprint offers support for some of these printers on Linux 
> via CUPS and has implemented advanced capabilities such as multi-cut and strip 
> printing through custom PPDs. I’ve read references to Gutenprint’s support for 
> enabling 2-inch cutting with these printers, which is exactly what I need.
> 
> However, since my target environment is Windows, I am trying to determine 
> whether Gutenprint or any related components (e.g., via a CUPS-on-Windows setup, 
> or exporting PPD capabilities to another stack) could be feasible in my case. 
> Alternatively, I’m considering using the Windows Print Spooler and Win32 API 
> with the manufacturers’ official drivers, potentially modifying DEVMODE settings 
> to toggle the cutter programmatically.
> 
> Given that background, I’d like to ask:
> 
>   *
> 
>     Do you believe Gutenprint (or any part of its architecture) can be
>     effectively used on Windows to enable the kind of strip cutting I need?
> 
>   *
> 
>     Is there any way to leverage the Gutenprint drivers or PPD logic outside of
>     CUPS (e.g., as a reference for building Windows-compatible workflows)?
> 
>   *
> 
>     In your experience, does the Windows Print Spooler/DEVMODE approach offer
>     enough control to reliably achieve 2x6 cutting, or is Gutenprint (via CUPS/
>     Linux) a more stable route?
> 
> Any guidance or thoughts you could share would be deeply appreciated. I'm happy 
> to provide more technical details if needed.
> 
> Thank you for your time and for the fantastic work on Gutenprint.
> 
> Best regards,
> Shahar.
> 
> 
> 
> _______________________________________________
> Gimp-print-devel mailing list
> Gim...@li...
> https://lists.sourceforge.net/lists/listinfo/gimp-print-devel

[Gimp-print-devel] Questions about Gutenprint

[שחר בן ח. <sha...@gm...>]

Dear Gutenprint Team,

I’m developing a Windows-based photobooth product and am currently
exploring options for automatic printing with strip cutting (specifically,
cutting a 4x6" photo into two 2x6" strips) using dye-sublimation printers
such as the DNP DS-RX1/DS620, Mitsubishi CP-D80/D90, and Citizen CX/CY
series.

I understand that Gutenprint offers support for some of these printers on
Linux via CUPS and has implemented advanced capabilities such as multi-cut
and strip printing through custom PPDs. I’ve read references to
Gutenprint’s support for enabling 2-inch cutting with these printers, which
is exactly what I need.

However, since my target environment is Windows, I am trying to determine
whether Gutenprint or any related components (e.g., via a CUPS-on-Windows
setup, or exporting PPD capabilities to another stack) could be feasible in
my case. Alternatively, I’m considering using the Windows Print Spooler and
Win32 API with the manufacturers’ official drivers, potentially modifying
DEVMODE settings to toggle the cutter programmatically.

Given that background, I’d like to ask:

   -

   Do you believe Gutenprint (or any part of its architecture) can be
   effectively used on Windows to enable the kind of strip cutting I need?
   -

   Is there any way to leverage the Gutenprint drivers or PPD logic outside
   of CUPS (e.g., as a reference for building Windows-compatible workflows)?
   -

   In your experience, does the Windows Print Spooler/DEVMODE approach
   offer enough control to reliably achieve 2x6 cutting, or is Gutenprint (via
   CUPS/Linux) a more stable route?

Any guidance or thoughts you could share would be deeply appreciated. I'm
happy to provide more technical details if needed.

Thank you for your time and for the fantastic work on Gutenprint.

Best regards,
Shahar.

[Gimp-print-devel] Troubleshoot - Canon G3411

[H N. <huz...@gm...>]

Hi,

I hope you're doing well.

Could you please guide me on how to install the scanner driver for the
Canon G3411? It is connected to our home Wi-Fi, but I am unable to scan
using my MacBook.

Looking forward to your assistance.


Regards,


Huzefa Noor






*This e-mail message and its attachment(s) are confidential and intended
solely for the recipient(s) . If you are not the intended recipient or have
received it in error, please notify the sender and delete it and any
attachment(s) immediately from your system. If you are not the intended
recipient, you must not forward it or copy or disclose its contents to any
other person. E-mail communication systems are not secure and therefore the
sender or our company does not accept responsibility for the contents of
this message and its attachment(s). Due to the risks of the e-mail
communication systems, the security and integrity of messages may not be
protected or messages may contain viruses. Although this message and its
attachments are scanned for known viruses, our company does not warrant
that it is virus-free or does not accept any liability for any damage
caused to your system by any virus transmitted by this message.*

[Gimp-print-devel] Canon LBP7010C - Status of unsupported printer

[xXTHEPOWAHXx YT <the...@gm...>]

Hello.
I'm writing this email because I have a problem with my printer and I
really want to be able to use it on a linux machine and not rely on a
virtual machine.

So, the drivers of this printer were provided by Canon's official website
until some months ago, when it figured as 'not available'. I have to say
that, before the drivers became unavailable, I tried installing them and
running them, but as the driver was outdated by almost 10 YEARS, it was
unable to work with the new dependencies.

I just want to know if there is some progress with this printer being made
to being included on the list of compatible drivers with gutenprint. If
not, I'm willing to collaborate with anything needed (I don't have any idea
but I'd like to learn).

Thanks a lot, I'm waiting for your response.

Re: [Gimp-print-devel] installation problem

[Solomon P. <pi...@sh...>]

On Wed, May 07, 2025 at 03:24:21PM +0300, ugrycsn--- via Gimp-print-devel wrote:
> I have Mac mini macOS 15.4.1 an ı want to install hp laserjet p 1006. Please help me

To quote the Gutenprint web site:

Macintosh OS Users!

As of July 7, 2024 the Gutenprint project has formally deprecated MacOS 
support. This means that no further MacOS-compatible binaries will be 
produced.

Gutenprint has not had an active MacOS maintainer for over three years, 
and the remaining developers lack the technical ability to produce MacOS 
binaries, much less undertake the substantial amount of work necessary 
to produce, test, and support binaries on newer (post-Mojave/10.14) 
MacOS releases.

For older versions (<= 10.14) of MacOS, there is a Gutenprint web page 
for OS X that answers most questions on how to use Gutenprint and 
Gimp-Print with OS X 10.2 "Jaguar" and beyond, and provides direct 
download links.

 - Solomon
-- 
Solomon Peachy			      pizza at shaftnet dot org (email&xmpp)
                                      @pizza:shaftnet dot org   (matrix)
Dowling Park, FL                      speachy (libera.chat)

[Gimp-print-devel] installation problem

[<ug...@ic...>]

I have Mac mini macOS 15.4.1 an ı want to install hp laserjet p 1006. Please help me

[Gimp-print-devel] Hello:

[scansino <sca...@gm...>]

<html><body>Hello,<br><br>I'm trying to install the drivers for a hp 1020 printer which needs to work in a MAC OS.<br><br>I've downloaded the guttenberg 5.4.3 versión and the nearest printer in the list is for hp 1022. Even though the drivers have been installed successfully, the printer doesn't work in my LaserJet hp 1020.<br><br>Anyone could help me with thos issue?<br><br>Thanks in advance.<br><br><div class="signature">--<br>Enviado con la aplicación GMX Mail</div></body></html>

Re: [Gimp-print-devel] Gutenprint 5.3.5 Release

[Solomon P. <pi...@sh...>]

On Wed, Mar 12, 2025 at 06:38:03PM -0400, Greg Troxel wrote:
> There is still the bug I reported earlier that
> "-D_POSIX_C_SOURCE=200809L" is added on all systems, rather than only on
> those where it is needed/helpful.  Adding a visibility define asks to
> hide all system functions not required by that standard.  The code uses
> netinet/ip.h which is not specified.  I'm patching this out, which is
> not hard

I'd prefer to just get rid of it altogether.  There's a lot of cruft in 
this codebase for platforms that haven't been relevant for at least a 
decade, and I don't want keep carrying the maintenance burden.

> Reading configure.ac, it looks like the gimp plugin really is gimp2
> only.  I realize it's a lot of work to make a gimp3 plugin.

Yeah, it is a ton of work; it's not the GIMP-specific bits that are a 
problem (though we do need to add in GEGL awareness to handle higher bit 
depths) but rather the GTK2-based UI library that first needs to be 
ported to GTK3 before the plugin itself can be ported.

> All in all, I decided to make the gimp option default off.  People that
> want it can rebuild.

Yeah, that's what everyone else is doing.  

 - Solomon
-- 
Solomon Peachy			      pizza at shaftnet dot org (email&xmpp)
                                      @pizza:shaftnet dot org   (matrix)
Dowling Park, FL                      speachy (libera.chat)

Re: [Gimp-print-devel] OfficeJet 8500 Pro a909G Driver Support

[Solomon P. <pi...@sh...>]

On Mon, Mar 31, 2025 at 04:29:31PM -0400, Jadon Culp wrote:
> I am reaching out simply to inquire if driver support for the OfficeJet 8500 Pro is available or planned in the near future.

The officejet 8500 pro appears to be supported by hplip:

  https://developers.hp.com/hp-linux-imaging-and-printing/supported_devices/index



 - Solomon
-- 
Solomon Peachy			      pizza at shaftnet dot org (email&xmpp)
                                      @pizza:shaftnet dot org   (matrix)
Dowling Park, FL                      speachy (libera.chat)

[Gimp-print-devel] OfficeJet 8500 Pro a909G Driver Support

[Jadon C. <jad...@gm...>]

Good afternoon,

I am reaching out simply to inquire if driver support for the OfficeJet 8500 Pro is available or planned in the near future.

Thanks in advance for your response!

Jadon Culp

Re: [Gimp-print-devel] Accidentally deleted some emails

[Zdenek D. <zd...@re...>]

Hi Solomon,

it was me - I have to be better in writing emails to not get filtered by 
spam filters :D


Zdenek

On 3/30/25 03:12, Solomon Peachy via Gimp-print-devel wrote:
> Someone sent me an email a couple of days ago that I inadvertantly
> deleted; It had a subject along the lines of Gutenprint producing weird
> characters or something like that.  It ended up in my spambox and I
> accidently deleted it before the subject line had fully registered in my
> mind.
>
> If you get this, please resend?
>
> Thanks,
>
>   - Solomon
>
>
> _______________________________________________
> Gimp-print-devel mailing list
> Gim...@li...
> https://lists.sourceforge.net/lists/listinfo/gimp-print-devel

-- 
Zdenek Dohnal
Senior Software Engineer
Red Hat, BRQ-TPBC

[Gimp-print-devel] Meson for Gutenprint

[Erik B. of T. <ba...@ta...>]

Hi folks,

I'm working on developing a build system for gutenprint based on meson;
a little project to teach myself meson and ninja.

Collaborators welcome.

Erik

[Gimp-print-devel] Thank you !

[Jérôme D. <jer...@la...>]

Hi,

Once again you saved my old printers (HP laserJet 4 and 5 from the 90's) !

I just installed Gutenprint 5.3.3 on my "new" MacBook Pro June 2017 2 
thunberbolt ports, A1708, MacOS 13.7.4.

THANK YOU !

I have no knwoledge nor time to help you, but how can I thank you more 
than with a mail ?

Regards.

Jerome

Re: [Gimp-print-devel] Gutenprint plugin for Gimp 3

[Solomon P. <pi...@sh...>]

On Sat, Mar 29, 2025 at 04:51:24PM +0100, Alain Second via Gimp-print-devel wrote:
> "An enhanced Print plug-in for the GIMP."
> What about a pritnt plugin for Gimp 3 ? When ?

Doing a GIMP3 port requires (1) porting the libgutenprintui library from 
GTK2 to GTK3, and (2) porting the actual plugin to use GEGL so fancier 
things like non-8bpp image data can be properly handled.  This 
represents a large chunk of work, even for someone who is familiar with 
GTK.

As for when, I'll quote the "future of gutenprint" email I sent out 
about two weeks ago:

"Other than critical bugfixes, this is effectively the end of Gutenprint 
 development, at least until a sufficient infusion of money and/or 
 manpower comes along."

In other words, it's not going to happen until someone volunteers (or 
pays for someone) to do it.  That someone will probably not be me.

 - Solomon
-- 
Solomon Peachy			      pizza at shaftnet dot org (email&xmpp)
                                      @pizza:shaftnet dot org   (matrix)
Dowling Park, FL                      speachy (libera.chat)

[Gimp-print-devel] Accidentally deleted some emails

[Solomon P. <pi...@sh...>]

Someone sent me an email a couple of days ago that I inadvertantly 
deleted; It had a subject along the lines of Gutenprint producing weird 
characters or something like that.  It ended up in my spambox and I 
accidently deleted it before the subject line had fully registered in my 
mind.

If you get this, please resend?

Thanks,

 - Solomon
-- 
Solomon Peachy			      pizza at shaftnet dot org (email&xmpp)
                                      @pizza:shaftnet dot org   (matrix)
Dowling Park, FL                      speachy (libera.chat)

[Gimp-print-devel] Gutenprint plugin for Gimp 3

[Alain S. <ala...@la...>]

"An enhanced Print plug-in for the GIMP."
What about a pritnt plugin for Gimp 3 ? When ?
Thanks in advance

Re: [Gimp-print-devel] peachcolored grayscale dye sublimation printer

[Solomon P. <pi...@sh...>]

On Thu, Mar 20, 2025 at 12:25:07AM +0100, AUTOBROS AB wrote:
> I have tried getting CUPS to use an ICC profile for printing but without
> success. I have also tried editing the PPD file, but again, without results.
> It seems like the Gutenprint driver lacks support for adjusting colors and
> ICC profiles.

Thre are two options, both require obtaining the ICC profiles from the 
printer manufacturers (included in their windows drivers, and sometimes 
as a separate download)

Then, you can either:

 * Pre-process the source images with the profile before you submit them 
   for printing.  (Since you're already using ImageMagick this is easy)
 * If your distribution uses colord (and CUPS is also built to use it) then
   you can import the ICC profiles and associate them with your printers using
   colord's tools (eg colormgr).  CUPS will then do the right thing automatically.

In both cases you'll need to submit a "color" image because even if the 
channels are the same going in, they won't be the same by the time 
they're submitted to the printer.

 - Solomon
-- 
Solomon Peachy			      pizza at shaftnet dot org (email&xmpp)
                                      @pizza:shaftnet dot org   (matrix)
Dowling Park, FL                      speachy (libera.chat)

[Gimp-print-devel] peachcolored grayscale dye sublimation printer

[AUTOBROS AB <huv...@th...>]

*Hello!*

I am so grateful for all the work you put into Gutenprint. It’s fantastic!

I use Gutenprint in CUPS on an R-Pi with Bookworm OS. As printers, I use 
dye sublimation printers, both the Citizen CY02 and DNP-RX1.

The images I print are always taken in color and then processed in 
ImageMagick with an ICC profile that converts them to black and white 
(grayscale).

By the time the images reach the printer, they are already black and white.

My problem is that the printed images have a slight peach tint in the 
lighter grayscale areas. It doesn’t matter whether I select RGB or 
GRAYSCALE in CUPS; the result is the same. The only adjustments that 
seem to have any effect are "Gamma adjustments," but they don’t improve 
the image—only make it more peach-colored.

I have tried getting CUPS to use an ICC profile for printing but without 
success. I have also tried editing the PPD file, but again, without 
results. It seems like the Gutenprint driver lacks support for adjusting 
colors and ICC profiles.

Do you have any thoughts on how I should proceed?


All the best

Marcus