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Printing the wrong characters (out by one) under specific conditions
Reported by
foolfod...@gmail.com,
Nov 3 2016
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Issue descriptionUserAgent: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.71 Safari/537.36 Steps to reproduce the problem: 1. Open the attached HTML file 2. Print the page (actually print it, printing to PDF will not trigger the issue) 3. Look at how the second line is OPQ rather than PQR What is the expected behavior? It should print PQR on second line. What went wrong? It prints OPQ rather than PQR Did this work before? N/A Chrome version: 54.0.2840.71 Channel: stable OS Version: 10.0 Flash Version: This seems to be an issue across a range of printers. Not everybody seems to have the issue. It doesn't seem to be an issue if you print to PDF or XPS. A user reported that it would print okay when using "winprint and RAW" but I don't know what that means. Two people confirmed it doesn't appear to be an issue on Mac. Swapping from Open Sans to Arial seems remove the issue. Normally it only seems to affect bold Open Sans but if you replace the google fonts @import statement with a bunch of @font-face commands but with the option to load the font locally then it'll be an issue for the regular font weight too. Removing the option to load from online results in the regular being okay but the bold still being wrong. It doesn't appear to be an issue for Firefox or Edge. It seems to get the character spacing wrong as well as printing the wrong characters. I tried removing the extended characters set @font-face commands but this didn't seem to make a difference.
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Nov 8 2016
Hi thestig, thanks for looking at this. I can produce the issue myself consistently. I tried the --disable-gdi-text-printing command line switch and that fixed the issue for me. A bit of extra info I discovered this morning, it appears to be font-weight 700 in particular that I get an issue. I'm using a RICOH SP C250DN printer over a network. The driver version is reported as 10.0.14393.0, date 2006-06-21. One of our users has the issue using an OKI C301dn but was able to fix the issue with an OKI MFP when they "changed the print processor" (I don't know what that means), but this didn't work for the OKI C301dn apparently. Another has the issue when using an HP colour laser jet (model unknown).
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Nov 9 2016
Thanks for the info. I'm going to mark this as a duplicate of bug 658606 since the underlying cause is the same. Since I don't have the exact printer here. I ended up installing the Ricoh driver from their website. I picked the PostScript driver, and set it to print to file. Then I looked at the output PostScript file but that doesn't seem to be able to demonstrate the issue. Maybe I need to try the PCL drivers but then I need to find a PCL viewer. I also found that if one right clicks on a printer and choose printer properties from the context menu, the property dialog has a "Print Test Page" button. The printed test page lists a bunch of details about the printer driver. In your case the 10.0.14393.0 driver version makes me think that the driver is part of Windows 10. Though the 2006 date seems off by a decade. |
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Comment 1 by thestig@chromium.org
, Nov 8 2016