bug in Epson 3800 driver for Lightzone


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LarryK
bug in Epson 3800 driver for Lightzone

Several years ago, before the re-organization of Lightzone to its present open-source resurrection, I reported a suspected bug in Lightzone. Whenever I print from Lightzone to my Epson 3800 printer, a one-inch wide artifact appears all down the right edge of the print, as though the image were folding back upon itself at that edge. The then-owners confirmed that it was indeed a bug and promised a fix.  However, it was just around the time the whole enterprise changed hands, so the fix never came.  Now I'm running 4.1.7 and the bug is still there.  To print after working on an image in Lightzone, I have to open it in either Photoshop or Lightroom in order for the artifact not to appear on the right-edge of the print.  Is there the possibility of a fix forthcoming?  I do love the program, but am not willing to continue having to print using a different program. 

LarryK
bug in Epson 3800 driver

Can't believe that I'm the only one who has encountered this. Maybe no one uses the 3800 anymore?

Lightzone team, are you listening?

sfink16
Issues Tracker

I haven't done this myself but this the location to put bugs/issues/concerns in --> https://github.com/Aries85/LightZone/issues

 

Take a look, maybe someone already put the issue in

 

Steve

Beeroid
bug in Epson 3800 driver for Lightzone

I have an EPSON XP-960 and I am reasonably confident I have narrowed down the source of the problem, and also have a workaround that works for me. Perhaps it will also work for someone else.

The problem seems to be related to a setting I have within the Epson print preferences - specifically Method of Enlargement which is either Auto Expand or Retain Size. If I choose Retain Size I see the problem. If I select Auto Expand I do not. Instructions to fix: from the Lightzone Print dialog:

1. Print

2. Preferences

3. Check the Borderless check box

4. Click Settings next to Borderless check box

5. Select Auto Expand in Method of Enlargement panel

6. Click OK and OK

 

I will attempt to log this in github. I have a little experience of image processing and to me it looks like there is a loop that has a mismatch between the number of pixels it expects to be in a row, and the number that are actually there - I've seen a similar ripping effect, and that time it was faulty loop counting in my code. Image processing can bend your mind sometimes!

Anyway, I love this software. Many thanks to the team :)