Discussion:
[Gimp-print-devel] Canon MP230 and Gutenprint: no printing if ink type selected
ValdikSS
2017-07-04 10:24:04 UTC
Permalink
Hello,

When I try to print on Canon MP230 using only black or only color ink, it won't. I see in dmesg that printer is reinitializing:

[июл 4 13:01] usb 1-1.2: new high-speed USB device number 8 using ehci-pci
[ +0,083274] usb 1-1.2: New USB device found, idVendor=04a9, idProduct=175f
[ +0,000006] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ +0,000004] usb 1-1.2: Product: MP230 series
[ +0,000012] usb 1-1.2: Manufacturer: Canon
[ +0,000001] usb 1-1.2: SerialNumber: 81C673
[ +0,542505] usblp 1-1.2:1.1: usblp0: USB Bidirectional printer dev 8 if 1 alt 0 proto 2 vid 0x04A9 pid 0x175F
[ +0,000675] usbcore: registered new interface driver usblp

trying to print with color ink

[ +5,140179] usblp0: removed
[ +0,006312] usblp 1-1.2:1.1: usblp0: USB Bidirectional printer dev 8 if 1 alt 0 proto 2 vid 0x04A9 pid 0x175F

trying to print with black ink

[июл 4 13:02] usblp0: removed
[ +1,370315] usblp 1-1.2:1.1: usblp0: USB Bidirectional printer dev 8 if 1 alt 0 proto 2 vid 0x04A9 pid 0x175F

Other than that printing works fine. I can print with both inksets.
Gernot Hassenpflug
2017-07-04 10:43:27 UTC
Permalink
Post by ValdikSS
Hello,
Hello,
Thanks for the feedback. Some questions first please.
What version of gutenprint are you using?
What parameters for:
media type (paper type)
papersize
color model option (RGB should be for color, Greyscale for monochrome)
duplex option
borderless option
media source (tray)
resolution mode (auto, or a specific mode from the list, if so which?)
Post by ValdikSS
[июл 4 13:01] usb 1-1.2: new high-speed USB device number 8 using ehci-pci
[ +0,083274] usb 1-1.2: New USB device found, idVendor=04a9, idProduct=175f
[ +0,000006] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ +0,000004] usb 1-1.2: Product: MP230 series
[ +0,000012] usb 1-1.2: Manufacturer: Canon
[ +0,000001] usb 1-1.2: SerialNumber: 81C673
[ +0,542505] usblp 1-1.2:1.1: usblp0: USB Bidirectional printer dev 8 if 1 alt 0 proto 2 vid 0x04A9 pid 0x175F
[ +0,000675] usbcore: registered new interface driver usblp

trying to print with color ink

[ +5,140179] usblp0: removed
[ +0,006312] usblp 1-1.2:1.1: usblp0: USB Bidirectional printer dev 8 if 1 alt 0 proto 2 vid 0x04A9 pid 0x175F

trying to print with black ink

[июл 4 13:02] usblp0: removed
[ +1,370315] usblp 1-1.2:1.1: usblp0: USB Bidirectional printer dev 8 if 1 alt 0 proto 2 vid 0x04A9 pid 0x175F
Other than that printing works fine. I can print with both inksets.
OK. Good to know that printing works with (default) both inksets. That
means there is no problem with the basic commands and ink definitions.
I cannot tell from your log what problem might be there, since the
printjob contents are simply passed to the printer by CUPS.
So you would need to set the CUPS log to debug, and send the relevant
log information (for example the gutenprint parameters will be there).
As tests, I could send you printjobs to send raw to your printer, to
see if they will print.
I can also do a check if the current gutenprint MP230 driver output
matches the Windows driver output for color/black inksets chosen.

Regards,
Gernot Hassenpflug
ValdikSS
2017-07-04 11:21:31 UTC
Permalink
Post by ValdikSS
Hello,
Thanks for the feedback. Some questions first please.
What version of gutenprint are you using?
5.2.11 on Fedora 25. Also tried 5.2.12 on ArchLinux.
Post by ValdikSS
media type (paper type)
Plain paper
Post by ValdikSS
papersize
A4
Post by ValdikSS
color model option (RGB should be for color, Greyscale for monochrome)
RGB, set by default.
Tried to print with Color model = RGB, Ink Type = CMYK, Ink Set = color and with Color Model = Grayscale, Ink Type = Black, Ink Set = Black, nothing works.
Post by ValdikSS
duplex option
No duplex. My printer doesn't support it.
Post by ValdikSS
borderless option
Disabled.
Post by ValdikSS
media source (tray)
Rear tray (the only one).
Post by ValdikSS
resolution mode (auto, or a specific mode from the list, if so which?)
Auto.
Post by ValdikSS
OK. Good to know that printing works with (default) both inksets. That
means there is no problem with the basic commands and ink definitions.
I cannot tell from your log what problem might be there, since the
printjob contents are simply passed to the printer by CUPS.
So you would need to set the CUPS log to debug, and send the relevant
log information (for example the gutenprint parameters will be there).
As tests, I could send you printjobs to send raw to your printer, to
see if they will print.
Please see attached debug logs from CUPS. cups-ok is all default settings with both ink sets, cups-fail is all defaults with only black ink set.
Post by ValdikSS
I can also do a check if the current gutenprint MP230 driver output
matches the Windows driver output for color/black inksets chosen.
I can perform any test you need. I can make a remote SSH access for you if you need.
Thanks for your help.
Post by ValdikSS
Regards,
Gernot Hassenpflug
Gernot Hassenpflug
2017-07-04 13:43:29 UTC
Permalink
Post by ValdikSS
Post by ValdikSS
Hello,
Thanks for the feedback. Some questions first please.
Hello,
Thanks for the answers and the logs.
Post by ValdikSS
Post by ValdikSS
What version of gutenprint are you using?
5.2.11 on Fedora 25. Also tried 5.2.12 on ArchLinux.
OK, presumably that means current code exhibits same behaviour, since
I have not touched the MP230 definitions.
Post by ValdikSS
Post by ValdikSS
media type (paper type)
Plain paper
Post by ValdikSS
papersize
A4
Post by ValdikSS
color model option (RGB should be for color, Greyscale for monochrome)
RGB, set by default.
Tried to print with Color model = RGB, Ink Type = CMYK, Ink Set = color and with Color Model = Grayscale, Ink Type = Black, Ink Set = Black, nothing works.
/../
Post by ValdikSS
Post by ValdikSS
borderless option
Disabled.
/../
Post by ValdikSS
Post by ValdikSS
resolution mode (auto, or a specific mode from the list, if so which?)
Auto.
So this means default resolution mode for the parameters you used,
given boths ink cartridges in use.
In the log file Resolution is given as "600x60dpi", which appears in
CUPS selection with the name "600x600 DPI".

Whereas black or color cartridge only, would be different default
resolution modes.

Hence, we should first test the available modes with both cartridges,
since for grayscale the same modes are used when you select black cart
only.
Can you please select the following modes and test print, with both
carts selected, and colour printing (RGB):
600x600 DPI HIGH
600x600 DPI (this is the default, used when you select Auto for resolution)
600x600 DPI DRAFT (this mode is marked untested)
300x300 DPI
300x300 DPI DRAFT (this mode is marked untested)

Can you please select the following modes and test print, with both
carts selected, and monochrome printing (Grayscale). These are the
modes that will be used also when you select black cart only, but we
need to see if they work first, even when printing with both carts
selected.
600x600 DPI HIGH MONO
600x600 DPI MONO
600x600 DPI DRAFT MONO (this mode is marked untested)
300x300 DPI MONO
300x300 DPI DRAFT MONO (this mode is marked untested)

If some of the above modes do not work (please do not mistake the
colour model or cart selection for the above tests, we don't want to
test the logic of that until later) then we have to fix that first (or
delete modes that prove to not work).

If all the modes above work, then please test the black cart selection
with greyscale colour model, and the above mono modes. Based on those
results, let's work further (there are separate modes containing word
COLOR-ONLY for cart selection color).

/../
Post by ValdikSS
Please see attached debug logs from CUPS. cups-ok is all default settings with both ink sets, cups-fail is all defaults with only black ink set.
The parameters in cups-ok log:
июл 04 14:17:21 valaptop cupsd[6567]: argv[5]="ColorModel=RGB
InputSlot=Rear PageSize=A4 StpInkSet=Both StpInkType=CMYK
job-uuid=urn:uuid:5c268655-1c00-36d5-4599-47e6de876641
job-originating-host-name=localhost date-time-at-creation=
date-time-at-processing= time-at-creation=1499167041
time-at-processing=1499167041 document-name-supplied=0MUAUC"
июл 04 14:17:21 valaptop cupsd[6567]: argv[6]="/var/spool/cups/d00107-001"

The fail log shows actually that Color ink cart was selected. I hope
that is what you intended, or else there is some very strange logic to
debug---can you please check again?

июл 04 14:15:36 valaptop cupsd[6567]: argv[5]="ColorModel=RGB
InputSlot=Rear PageSize=A4 StpInkSet=Color StpInkType=CMYK
job-uuid=urn:uuid:6df019b6-2513-393c-6e2b-7cc293520ee4
job-originating-host-name=localhost date-time-at-creation=
date-time-at-processing= time-at-creation=1499166936
time-at-processing=1499166936 document-name-supplied=rTHn3q"
июл 04 14:15:36 valaptop cupsd[6567]: argv[6]="/var/spool/cups/d00106-001"

There is certainly a bug there, since the InkType ends up being CMYK
later, whereas the gutenprint logic should set it to CMY.
Could you try a Color cart test setting InkType to CMY directly. In
that case I hope that at least the correct mode (one of the COLOR-ONLY
modes) will be selected.
Post by ValdikSS
Post by ValdikSS
I can also do a check if the current gutenprint MP230 driver output
matches the Windows driver output for color/black inksets chosen.
I can perform any test you need. I can make a remote SSH access for you if you need.
Thanks for your help.
Thank you for your kind offer. I hope we can find a solution easily by
debugging (a) which modes work (for both carts), and (b) debugging
black cart-only modes first and then color cart-only modes later.

Best regards,
Gernot Hassenpflug
ValdikSS
2017-07-04 14:08:54 UTC
Permalink
Post by ValdikSS
Hello,
Thanks for the answers and the logs.
OK, presumably that means current code exhibits same behaviour, since
I have not touched the MP230 definitions.
/../
/../
So this means default resolution mode for the parameters you used,
given boths ink cartridges in use.
In the log file Resolution is given as "600x60dpi", which appears in
CUPS selection with the name "600x600 DPI".
Whereas black or color cartridge only, would be different default
resolution modes.
Hence, we should first test the available modes with both cartridges,
since for grayscale the same modes are used when you select black cart
only.
Can you please select the following modes and test print, with both
600x600 DPI HIGH
RGB color, CMYK color ink type, both inks
Works.
Post by ValdikSS
600x600 DPI (this is the default, used when you select Auto for resolution)
Works
Post by ValdikSS
600x600 DPI DRAFT (this mode is marked untested)
Works
Post by ValdikSS
300x300 DPI
Works
Post by ValdikSS
300x300 DPI DRAFT (this mode is marked untested)
Does not work. Printer reinitializes.
Post by ValdikSS
Can you please select the following modes and test print, with both
carts selected, and monochrome printing (Grayscale). These are the
modes that will be used also when you select black cart only, but we
need to see if they work first, even when printing with both carts
selected.
600x600 DPI HIGH MONO
600x600 DPI MONO
600x600 DPI DRAFT MONO (this mode is marked untested)
300x300 DPI MONO
300x300 DPI DRAFT MONO (this mode is marked untested)
RGB color, CMYK color ink type, both inks.
All modes do not work. Printer reinitializes.
The same result for Grayscale color.
Post by ValdikSS
If some of the above modes do not work (please do not mistake the
colour model or cart selection for the above tests, we don't want to
test the logic of that until later) then we have to fix that first (or
delete modes that prove to not work).
If all the modes above work, then please test the black cart selection
with greyscale colour model, and the above mono modes. Based on those
results, let's work further (there are separate modes containing word
COLOR-ONLY for cart selection color).
None color-only modes work with any ink type/color/ink color type parameters.
Post by ValdikSS
/../
июл 04 14:17:21 valaptop cupsd[6567]: argv[5]="ColorModel=RGB
InputSlot=Rear PageSize=A4 StpInkSet=Both StpInkType=CMYK
job-uuid=urn:uuid:5c268655-1c00-36d5-4599-47e6de876641
job-originating-host-name=localhost date-time-at-creation=
date-time-at-processing= time-at-creation=1499167041
time-at-processing=1499167041 document-name-supplied=0MUAUC"
июл 04 14:17:21 valaptop cupsd[6567]: argv[6]="/var/spool/cups/d00107-001"
The fail log shows actually that Color ink cart was selected. I hope
that is what you intended, or else there is some very strange logic to
debug---can you please check again?
Sorry, the color ink was selected indeed.
Post by ValdikSS
июл 04 14:15:36 valaptop cupsd[6567]: argv[5]="ColorModel=RGB
InputSlot=Rear PageSize=A4 StpInkSet=Color StpInkType=CMYK
job-uuid=urn:uuid:6df019b6-2513-393c-6e2b-7cc293520ee4
job-originating-host-name=localhost date-time-at-creation=
date-time-at-processing= time-at-creation=1499166936
time-at-processing=1499166936 document-name-supplied=rTHn3q"
июл 04 14:15:36 valaptop cupsd[6567]: argv[6]="/var/spool/cups/d00106-001"
There is certainly a bug there, since the InkType ends up being CMYK
later, whereas the gutenprint logic should set it to CMY.
Could you try a Color cart test setting InkType to CMY directly. In
that case I hope that at least the correct mode (one of the COLOR-ONLY
modes) will be selected.
Unfortunately the printer does not print with CMY ink type and color-only resolution selected.
Post by ValdikSS
Thank you for your kind offer. I hope we can find a solution easily by
debugging (a) which modes work (for both carts), and (b) debugging
black cart-only modes first and then color cart-only modes later.
Best regards,
Gernot Hassenpflug
Gernot Hassenpflug
2017-07-04 15:49:22 UTC
Permalink
/../

Hello,

I have sent two test printjobs to you offline, for color-only and black-only.
More information below.
Post by ValdikSS
Post by Gernot Hassenpflug
Can you please select the following modes and test print, with both
600x600 DPI HIGH
Works.
Post by Gernot Hassenpflug
600x600 DPI (this is the default, used when you select Auto for resolution)
Works
Post by Gernot Hassenpflug
600x600 DPI DRAFT (this mode is marked untested)
Works
Post by Gernot Hassenpflug
300x300 DPI
Works
Post by Gernot Hassenpflug
300x300 DPI DRAFT (this mode is marked untested)
Does not work. Printer reinitializes.
Great testing, I have removed the non-working mode.
Post by ValdikSS
Post by Gernot Hassenpflug
Can you please select the following modes and test print, with both
carts selected, and monochrome printing (Grayscale). These are the
modes that will be used also when you select black cart only, but we
need to see if they work first, even when printing with both carts
selected.
600x600 DPI HIGH MONO
600x600 DPI MONO
600x600 DPI DRAFT MONO (this mode is marked untested)
300x300 DPI MONO
300x300 DPI DRAFT MONO (this mode is marked untested)
RGB color, CMYK color ink type, both inks.
All modes do not work. Printer reinitializes.
The same result for Grayscale color.
OK. I have modified the code. This requires recompilation on your
side, or waiting for a new package, so in the meantime I sent you the
two files mentioned above for testing.

The change concerns the black-only and colour-only mode. Originally,
Canon printers were sent only the inks required, so for black-only
modes, only inksets with K ink, and for color-only, inksets with CMY
inks were defined for the printjob.
At some point, the Canon firmware standard changed and inksets with
CMYK were required to be defined in the printjob header even though
the printjob data only contained K or CMY.
So I changed the resolution mode definitions accordingly. All modes
now use inksets with CMYK in them, but printjob data is either CMYK
(both ink carts in use), K (only black in cart in use), or CMY (only
color ink cart in use).

/../
Post by ValdikSS
None color-only modes work with any ink type/color/ink color type parameters.
If the black-only and color-only printjobs work, then I will commit
the code changes and you will see this in the 5.2.13 package to be
released shortly. I checked on my side, and the output is similar to
what the Windows printjobs contain.

Best regards,
Gernot Hassenpflug
Gernot Hassenpflug
2017-07-04 15:58:51 UTC
Permalink
Hello Robert, and anyone else that might know.

From the log files for the MP230, I found the deviceID:

июл 04 14:17:22 valaptop cupsd[6567]: Printer found with device ID:
MFG:Canon;CMD:BJL,BJRaster3,BSCCe,IVEC,IVECPLI;MDL:MP230
series;CLS:PRINTER;DES:Canon MP230
series;VER:1.050;STA:10;FSI:00;HRI:C;MSI:AOFF,B240,DAT,E3,HASF,JOFF,K21000700;PDR:4;PSE:LNHB41360;CID:CA_IVEC1TYPE0_IJP;
Device URI: usb://Canon/MP230%20series?serial=81C673&interface=1

This is quite long, I assume it is correct in full as:

MFG:Canon;CMD:BJL,BJRaster3,BSCCe,IVEC,IVECPLI;MDL:MP230
series;CLS:PRINTER;DES:Canon MP230
series;VER:1.050;STA:10;FSI:00;HRI:C;MSI:AOFF,B240,DAT,E3,HASF,JOFF,K21000700;PDR:4;PSE:LNHB41360;CID:CA_IVEC1TYPE0_IJP;

Can I include the entire blob as the deviceID in printers.xml?
Best regards,
Gernot Hassenpflug



On Wed, Jul 5, 2017 at 12:49 AM, Gernot Hassenpflug
Post by ValdikSS
/../
Hello,
I have sent two test printjobs to you offline, for color-only and black-only.
More information below.
Post by ValdikSS
Post by Gernot Hassenpflug
Can you please select the following modes and test print, with both
600x600 DPI HIGH
Works.
Post by Gernot Hassenpflug
600x600 DPI (this is the default, used when you select Auto for resolution)
Works
Post by Gernot Hassenpflug
600x600 DPI DRAFT (this mode is marked untested)
Works
Post by Gernot Hassenpflug
300x300 DPI
Works
Post by Gernot Hassenpflug
300x300 DPI DRAFT (this mode is marked untested)
Does not work. Printer reinitializes.
Great testing, I have removed the non-working mode.
Post by ValdikSS
Post by Gernot Hassenpflug
Can you please select the following modes and test print, with both
carts selected, and monochrome printing (Grayscale). These are the
modes that will be used also when you select black cart only, but we
need to see if they work first, even when printing with both carts
selected.
600x600 DPI HIGH MONO
600x600 DPI MONO
600x600 DPI DRAFT MONO (this mode is marked untested)
300x300 DPI MONO
300x300 DPI DRAFT MONO (this mode is marked untested)
RGB color, CMYK color ink type, both inks.
All modes do not work. Printer reinitializes.
The same result for Grayscale color.
OK. I have modified the code. This requires recompilation on your
side, or waiting for a new package, so in the meantime I sent you the
two files mentioned above for testing.
The change concerns the black-only and colour-only mode. Originally,
Canon printers were sent only the inks required, so for black-only
modes, only inksets with K ink, and for color-only, inksets with CMY
inks were defined for the printjob.
At some point, the Canon firmware standard changed and inksets with
CMYK were required to be defined in the printjob header even though
the printjob data only contained K or CMY.
So I changed the resolution mode definitions accordingly. All modes
now use inksets with CMYK in them, but printjob data is either CMYK
(both ink carts in use), K (only black in cart in use), or CMY (only
color ink cart in use).
/../
Post by ValdikSS
None color-only modes work with any ink type/color/ink color type parameters.
If the black-only and color-only printjobs work, then I will commit
the code changes and you will see this in the 5.2.13 package to be
released shortly. I checked on my side, and the output is similar to
what the Windows printjobs contain.
Best regards,
Gernot Hassenpflug
Robert Krawitz
2017-07-04 16:43:37 UTC
Permalink
Post by Gernot Hassenpflug
MFG:Canon;CMD:BJL,BJRaster3,BSCCe,IVEC,IVECPLI;MDL:MP230
series;CLS:PRINTER;DES:Canon MP230
series;VER:1.050;STA:10;FSI:00;HRI:C;MSI:AOFF,B240,DAT,E3,HASF,JOFF,K21000700;PDR:4;PSE:LNHB41360;CID:CA_IVEC1TYPE0_IJP;
Device URI: usb://Canon/MP230%20series?serial=81C673&interface=1
Should be able to; I see other printers with long lines (such as the iP3000).
Post by Gernot Hassenpflug
MFG:Canon;CMD:BJL,BJRaster3,BSCCe,IVEC,IVECPLI;MDL:MP230
series;CLS:PRINTER;DES:Canon MP230
series;VER:1.050;STA:10;FSI:00;HRI:C;MSI:AOFF,B240,DAT,E3,HASF,JOFF,K21000700;PDR:4;PSE:LNHB41360;CID:CA_IVEC1TYPE0_IJP;
Can I include the entire blob as the deviceID in printers.xml?
--
Robert Krawitz <***@alum.mit.edu>

*** MIT Engineers A Proud Tradition http://mitathletics.com ***
Member of the League for Programming Freedom -- http://ProgFree.org
Project lead for Gutenprint -- http://gimp-print.sourceforge.net

"Linux doesn't dictate how I work, I dictate how Linux works."
--Eric Crampton
ValdikSS
2017-07-04 16:08:02 UTC
Permalink
Post by ValdikSS
/../
Hello,
I have sent two test printjobs to you offline, for color-only and black-only.
The printer now prints, but I'm not sure if the colors in color-hi mode are correct. I can see blue Queue Names "fileprinter" and "MP450", but everything else is grayscale.
Here's a scanned image: Loading Image...
Post by ValdikSS
More information below.
Great testing, I have removed the non-working mode.
OK. I have modified the code. This requires recompilation on your
side, or waiting for a new package, so in the meantime I sent you the
two files mentioned above for testing.
Thanks for your help. I'm fine with recompilation. Will test if needed.
Post by ValdikSS
The change concerns the black-only and colour-only mode. Originally,
Canon printers were sent only the inks required, so for black-only
modes, only inksets with K ink, and for color-only, inksets with CMY
inks were defined for the printjob.
At some point, the Canon firmware standard changed and inksets with
CMYK were required to be defined in the printjob header even though
the printjob data only contained K or CMY.
So I changed the resolution mode definitions accordingly. All modes
now use inksets with CMYK in them, but printjob data is either CMYK
(both ink carts in use), K (only black in cart in use), or CMY (only
color ink cart in use).
/../
If the black-only and color-only printjobs work, then I will commit
the code changes and you will see this in the 5.2.13 package to be
released shortly. I checked on my side, and the output is similar to
what the Windows printjobs contain.
Best regards,
Gernot Hassenpflug
Gernot Hassenpflug
2017-07-04 16:19:57 UTC
Permalink
/../
Hello,
Post by ValdikSS
The printer now prints, but I'm not sure if the colors in color-hi mode are correct. I can see blue Queue Names "fileprinter" and "MP450", but everything else is grayscale.
Great!
Post by ValdikSS
Here's a scanned image: https://i.imgur.com/KJ6VNCQ.jpg
Yes, that is correct, the CUPS web interface is pretty colorless.
/../
Post by ValdikSS
Post by Gernot Hassenpflug
OK. I have modified the code. This requires recompilation on your
side, or waiting for a new package, so in the meantime I sent you the
two files mentioned above for testing.
Thanks for your help. I'm fine with recompilation. Will test if needed.
OK, I submitted the fix now to the git source.
If you are comfortable compiling, please go ahead.
I would really appreciate the testing of the Hagaki or Envelope
resolution modes (for both, black, color ink carts)---there too there
is an untested (i.e., not present in the Windows driver) draft mode
apart from the High and Standard quality modes.
Post by ValdikSS
Post by Gernot Hassenpflug
The change concerns the black-only and colour-only mode. Originally,
Canon printers were sent only the inks required, so for black-only
modes, only inksets with K ink, and for color-only, inksets with CMY
inks were defined for the printjob.
At some point, the Canon firmware standard changed and inksets with
CMYK were required to be defined in the printjob header even though
the printjob data only contained K or CMY.
So I changed the resolution mode definitions accordingly. All modes
now use inksets with CMYK in them, but printjob data is either CMYK
(both ink carts in use), K (only black in cart in use), or CMY (only
color ink cart in use).
/../
If the black-only and color-only printjobs work, then I will commit
the code changes and you will see this in the 5.2.13 package to be
released shortly. I checked on my side, and the output is similar to
what the Windows printjobs contain.
Regards,
Gernot Hassenpflug
Gernot Hassenpflug
2017-07-05 02:21:06 UTC
Permalink
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Post by Gernot Hassenpflug
OK, I submitted the fix now to the git source.
If you are comfortable compiling, please go ahead.
I would really appreciate the testing of the Hagaki or Envelope
resolution modes (for both, black, color ink carts)---there too there
is an untested (i.e., not present in the Windows driver) draft mode
apart from the High and Standard quality modes.
Just an addition: when testing resolution modes for Hagaki or
Envelope, you *must* set the media type to "Hagaki" or "Hagaki A
(address side)" media (or "Envelope" media, as the case may be),
otherwise the driver will ignore the resolution selection and find
appropriate modes for the media type selected. You can put plain paper
into the actual printer though, regardless of what media type you set
in the driver.

Regards,
Gernot Hassenpflug

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