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Hi,

The Samsung driver is working great for me, however, there is one big caveat which I encountered when printing a large PDF document: Turns out that the page content gets shifted more and more. The first page is fine, but on subsequent pages, the content gets shifted to the upper right. This increases from page to page and is very obvious on the last page of a 20-pages document. I'm attaching a photo that illustrates the problem.

My printer is a Samsung CLP-510N, connected via Ethernet to an Ubuntu 20.04 server running CUPS 2.3.1. It is shared, so macOS and iOS devices can print via Bonjour/AirPrint. I have installed suld-driver-4.00.39.

I encountered this problem when printing from Preview on macOS Catalina. I didn't get a chance to try printing from other clients, such as Windows, but can arrange that if it helps to narrow down the problem.

Interestingly, this doesn't happen if I print the pages individually from the same PDF.

Any advise?

Thanks,
Aaron

Interesting, I didn't know that!

I've also tried to manually convert documents to grayscale before printing (and then choosing color mode in the driver to—ironically—prevent it from using the colored cartridges for black color). What it does then is that black will actually be printed in black, but all the shades of grey will be mixed using the colored cartridges. So as you said, there's probably no way around that besides using another driver. I had a look at Splix, but I weren't able to make that work. Also, I've read that quality is superior when using the official Samsung driver.

So in the end, we've bought new color cartridges now and will make sure to never use the grayscale option in the driver ever again. In hindsight, this explains why the colored cartridges never lasted long, even though we thought we were saving so much ink by always choosing the grayscale option in the driver. Wow, quite a bummer! Thanks a lot for clearing that up!

Hi, thanks for getting back!

In the meantime, I've found out that even when I set the color mode to grayscale on the client, it is still printing blue text (which I believe happens because it tries to print black with the colored cartridges, but some are empty).

Only when I print the printer's configuration ("Print Printer Configuration Page" via the printer's web interface), it will print in black. Any idea why that is?

I'll try the hint regarding PostScript and see if the quality is still good enough.

Hi,

I would like to force all print jobs sent to my Samsung CLP-510N to monochrome, even when the client explicitly requests color mode.

The background is that we don't want to replace the colored cartridges anymore and use the printer as a monochrome printer only. Therefore, the colored cartridges are always empty, and a user who doesn't know this will get an unexpected result.

I have already set color mode to "Grayscale" in the default options, however, iOS devices don't seem to adhere to this default and try to color print anyway.

Any idea how I can achieve this?

The printer is connected via Ethernet to an Ubuntu 20.04 server running CUPS 2.3.1. It is shared, so macOS and iOS devices can print via Bonjour/AirPrint. I have installed suld-driver-4.00.39.

Thanks,
Aaron

That's cool! The world is definitely a little better for me now (and my mother, who owns this old printer) :-)

Yes! Now it works. Thank you so much!

There is one question I didn't find on https://www.bchemnet.com/suldr/questions.html: Can I buy you a coffee? ;-)

[suld-driver-4.00.39]

Hi,

First of all, thanks for keeping this repository up to date! I saw there were plans to shut it down last year, and I'm glad to hear that you chose to let it live for a few more years.

So here is my problem:

I have installed suld-driver-4.00.39 (maximum version for my CLP-510N) on a fresh Ubuntu 20.04 system. This ships with CUPS 2.3.1. The printer is connected via network through LDP (connection: lpd://192.168.178.28/queue).

When I try to print, the job fails with stopped "Filter failed".

I believe this is the relevant portion of the debug log:

Code Select Expand


I [21/May/2020:09:08:42 +0200] [Job 6] Started filter /usr/lib/cups/filter/pdftopdf (PID 2996)
I [21/May/2020:09:08:42 +0200] [Job 6] Started filter /usr/lib/cups/filter/pdftops (PID 2997)
I [21/May/2020:09:08:42 +0200] [Job 6] Started filter /usr/lib/cups/filter/rastertosamsungsplc (PID 2998)
I [21/May/2020:09:08:42 +0200] [Job 6] Started backend /usr/lib/cups/backend/lpd (PID 2999)
D [21/May/2020:09:08:42 +0200] [Job 6] PID 2998 (/usr/lib/cups/filter/rastertosamsungsplc) stopped with status 127 (File too large)
D [21/May/2020:09:08:42 +0200] [Job 6] pdftops - copying to temp print file \"/tmp/00bb55eca8895\"
D [21/May/2020:09:08:42 +0200] [Job 6] pdftopdf: Last filter determined by the PPD: rastertosamsungsplc; FINAL_CONTENT_TYPE: application/vnd.cups-postscript => pdftopdf will not log pages in page_log.
D [21/May/2020:09:08:42 +0200] [Job 6] Samsung_CLP-510N: error while loading shared libraries: libcupsimage.so.2: cannot open shared object file: No such file or directory
D [21/May/2020:09:08:42 +0200] [Job 6] PID 2996 (/usr/lib/cups/filter/pdftopdf) exited with no errors.
D [21/May/2020:09:08:42 +0200] [Job 6] PID 2999 (/usr/lib/cups/backend/lpd) exited with no errors.


So two things that seem fishy:

• [...] rastertosamsungsplc) stopped with status 127 (File too large)
• error while loading shared libraries: libcupsimage.so.2: cannot open shared object file: No such file or directory

I'm adding the full debug log as an attachment (limited to lines containing "[Job").

Any idea how I can fix this? Is my Ubuntu/CUPS too new?

Thanks,
Aaron