On Mon, 5 Oct 2026 13:19:51 GMT, Prasanta Sadhukhan <[email protected]> wrote:
>>> I tried print-to-pdf where it prints 2 page but print has Page0-Page1 text >> >> This is expected as PDF printer drivers do not support collation since it >> only generates a single digital file than multiple copies. >> >>> I tried in Xerox AltaLink printer ... but it prints 2 blank page. >> >> This could be any number of things but my guess is that the printer does not >> support PostScript (pages would not be blank otherwise). Is this also with >> the current commits applied, or with the additional changes I recommended? >> >> Another debugging step we could take is manually feeding the following >> PostScript content manually to `lpr` with the command output you just sent: >> >> [document.txt](https://github.com/user-attachments/files/33047893/document.txt) >> >> And then print it like so (after renaming back to "document.ps"): >> >> >> lpr -PAltaLink-B8145 -JJava Printing -#2 -h -o collate=true document.ps >> >> >> This means we could then work out what is the bad combo of options, or if it >> is actually the printer drivers separate to OpenJDK that is the culprit. > >> my guess is that the printer does not support PostScript > > You might be correct but it also tells that this test might not be enough to > test the original UnixPrintJob codepath as it is not going via that route.. Hi @prsadhuk and @prrace would you mind going through the following reproduction steps and document ALL your results. So far I will more information from both of you to work out what is going wrong with all our available printer setups. I have also added a test that targets `UnixPrintJob` by allowing a document selection (other two tests force the use of `PSPrinterJob` through the `Printable` interface) only as well to get a full range of results. The reproductions steps are: 1. Start the Collate2DPrintingTest application. 2. Run the "Print2D Wizard" test and document the following outputs: - How many pages were printed - How many copies were printed - Whether the copies were collated - If the content is correct - The `PSPrinterJob>>` output for the `lpr` command 3. Run the "Print2D Wizard" test again but with "/Collate true" removed and document: - How many pages were printed - How many copies were printed - Whether the copies were collated - If the content is correct - The `PSPrinterJob>>` output for the `lpr` command 4. Run the "PrintService Default" test and document the following outputs: - How many pages were printed - How many copies were printed - Whether the copies were collated - If the content is correct - The `PSPrinterJob>>` output for the `lpr` command 5. Run the "PrintService Default" test but with "/Collate true" removed and document: - How many pages were printed - How many copies were printed - Whether the copies were collated - If the content is correct - The `PSPrinterJob>>` output for the `lpr` command 6. Run the "PrintService Document" test with the "document.ps" file from before: - How many pages were printed - How many copies were printed - Whether the copies were collated - If the content is correct - The `PSPrinterJob>>` output for the `lpr` command - And the `UnixPrintJob>>` output for the `lpr` command 7. Run the "PrintService Document" test with the "document.ps" file with the "/Collate true" option removed and document: - How many pages were printed - How many copies were printed - Whether the copies were collated - If the content is correct - The `PSPrinterJob>>` output for the `lpr` command - And the `UnixPrintJob>>` output for the `lpr` command I understand that is a lot of testing, however we need more test results from a variety of situations and printers to accurately determine what is going on. Additionally could you both document the printer details with the following commands: lpstat -v # to list all printer devices and their names lpoptions -p <PRINTER_NAME> -l # to get basic options available cat /etc/cups/ppd/<PRINTER_NAME> # to get all driver details for printer ------------- PR Comment: https://git.openjdk.org/jdk/pull/33023#issuecomment-6008627720
