Flyspray:: Flyspray::CUPS Dyesub Backends: Recently opened tasks 2018-02-22T19:40:13Z FS#597: Allow for aliases in backend names? 2018-02-22T19:40:13Z 2018-02-22T19:40:13Z

That would allow us to present a 'modern' name for the backend but still provide backwards compatibility.

eg: dnpds40 -> dnp_citizen or mitsu9550 -> mitsu9xxx or mitsup95d->mitsu_p9x

Another approach would be to make things more fine-grained.


Solomon Peachy
FS#596: Figure out if Citizen CW-02/OP900II are closer to CX or CY series 2018-02-22T19:35:06Z 2018-02-22T19:35:06Z

...or if they need their own designation in Gutenprint and selphy_print.

It looks like they don't map entirely cleanly to either for avialable print options, but the real question is the firmware version tests for features.

Solomon Peachy
FS#595: When trying to enumerate printers, don't block for a long time when one's busy 2018-02-16T12:11:44Z 2018-02-16T12:11:44Z

This is a particular problem when we have more than one model of the same printer family attached, and one or more of them are busy doing something -- but we can't query the serial number when the printer is claimed.

This may require a two pass approach -- first try to probe everything with minimal timeouts.  If we don't succeed in finding the one we want, re-try the probe with longer timeouts.  In both cases, we shouldn't report a failure until we finish walking the entire list.

Solomon Peachy
FS#592: Investigate Sony UPCX1 2018-01-28T13:39:04Z 2018-01-28T13:39:04Z

300 dpi, 4" or 5" wide media.

Not sure if it uses sheet or roll media.

Solomon Peachy
FS#591: Investigate Kodak DL2100 2018-01-27T01:27:42Z 2018-01-26T01:51:20Z

It's a duplexing "electro-photographic" (AKA laser) printer @600x1200dpi.  They rarget photo books and calendars with it.


Appears to be a rebranded version of the Oki C712.

Solomon Peachy
FS#590: Investigate Kodak D4600 / Mitsubishi CP-W5000 2018-01-26T01:46:29Z 2018-01-26T01:46:29Z

Duplexing 8x12" models, capable of cuts along both axes.

Solomon Peachy
FS#589: Fix 8bpp->6bpp color scaling 2018-01-04T01:58:57Z 2017-11-28T03:07:05Z

Right now we just shift the color data over by 2bits.  It looks like that's naive; it looks like we need some sort of gamma-aware 8->6 mapping on a per-channel basis.  This may require Gutenprint to spit out RGB data, and we perform the YMC conversion at the same time we apply gamma?  (not unlike the Mitsu D70 family..)

The printer's "gamma curve" settings don't seem to have any major effect.

It's also possible that my printer's head is just plain shot (there's already a bad row of pixels..), and that everything is actually fine.

Solomon Peachy
FS#588: Registration/Alignment issue with Black plane 2017-11-28T03:03:38Z 2017-11-28T03:03:38Z

K extraction appears to work well, but when printing there's a registration problem.  The black layer appears to print several pixels higher than the color layers.

I'm not sure if this is something that needs a fixed offset applied, or is something that can vary printer-printer.

Solomon Peachy
FS#587: Figure out Magicard Duplex and Mag-stripe encoding. 2017-12-16T23:31:41Z 2017-11-24T01:11:05Z

Support is in for basic stuff, but it's not clear how to proceed with Duplex and Mag-stripe stuffs.

Solomon Peachy
FS#586: Add JSON output 2017-11-24T01:03:31Z 2017-11-24T01:03:31Z

This might not be feasible in a general sense due to the need to interact with CUPS.  But it's worth investigating.

Solomon Peachy