cups settings mfp m477fdn force mono printing

Hi,

The printer can be added in the http://localhost:631 and select the "Set Default Options" from the list box and set the Color Mode to Grayscale and save it. This will print the jobs in Mono mode.

Thanks,
Sujay

there is no color mode / grayscale settings in cups. under the color tab:
text neutral grays: black only
graphics neutral grays: black only
photo neutral grays: black only
print color as gray: On

i can not find any specific setting for grayscale.

i still have a setting for a oj 6450 inkjet. it has an option for Output Mode: color/grayscale/hi quality grayscale.
the m477 has no such option.

Hi,

The parameters for each printer may vary. Go ahead with gray to print the job in Mono only.

Alternatively the default color for CUPS can be even configured by running lpoptions command in the terminal.
Verify the color modes the printer supports by running the command which lists out the color the printer supports.

lpoptions -l | grep Color

Then set the color by running the following command in the terminal.

lpoptions -o ColorModel=Gray

This will set the default color for CUPS.

Thanks,
Sujay

i have two printers defined in cups. m477 and m477mono. the m477mono has all the gray options set and it still prints color.

lpoptions -l -d m477mono
PageSize/Media Size: *Letter Legal Executive FanFoldGermanLegal 4x6 5x8 A4 A5 A6 B5 B6 Env4x6 Oficio 195x270mm 184x260mm 7.75x10.75 Postcard DoublePostcardRotated Env10 EnvMonarch EnvISOB5 EnvC5 EnvDL Custom.WIDTHxHEIGHT
Duplex/Two-Sided: *None DuplexNoTumble DuplexTumble
Collate/Collate: True *False
InputSlot/Paper Feed: *Auto Tray1 Tray2 Tray3 ManualFeed
HPOption_Duplexer/Duplex Unit: True *False
HPOption_Tray3/Tray 3: *False True
MediaType/Media Type: *Unspecified Plain HPEcoFFICIENT HPLaserJet90 HPColorLaserMatte105 HPPremiumChoiceMatte120 HPBrochureMatte150 HPCoverMatte200 HPMattePhoto200 HPPremiumPresentationGlossy120 HPBrochureGlossy150 HPTrifoldBrochureGlossy150 HPBrochureGlossy200 Light6074 Intermediate8595 MidWeight96110 Heavy111130 ExtraHeavy131175 Cardstock176220 HeavyGlossy111130 ExtraHeavyGlossy131175 CardGlossy176220 ColorLaserTransparency Labels Letterhead Envelope HeavyEnvelope Preprinted Prepunched Colored Bond Recycled Rough HeavyRough OpaqueFilm
HPPJLEconoMode2/EconoMode: *on off
HPEdgeControl/Edge Control: HPEdgeControlOff Light *Normal Max
HPGeneralHalftone/Halftone: *Smooth Detail
HPTextNeutralGrays/Text Neutral Grays: *Black ProcessBlack
HPGraphicsNeutralGrays/Graphics Neutral Grays: *Black ProcessBlack
HPPhotoNeutralGrays/Photo Neutral Grays: *Black ProcessBlack
HPPJLColorAsGray/Print Color as Gray: *on off
HPRGBEmulation/RGB Color: DefaultSRGB PhotoSRGB Adobe VividSRGB *HPRGBEmulationNone

the printers.conf file:
<Printer m477mono>
UUID urn:uuid:f4edf8cd-5235-3ef2-5261-2c80fd1ffb81
Info m477mono
DeviceURI hp:/net/HP_Color_LaserJet_MFP_M477fdn?ip=192.168.1.101
PPDTimeStamp *
State Idle
StateTime 1518885215
Type 8425676
Accepting Yes
Shared Yes
ColorManaged Yes
JobSheets none none
QuotaPeriod 0
PageLimit 0
KLimit 0
OpPolicy default
ErrorPolicy retry-job
</Printer>

this leads me to believe that the color mode option should be available. but from everything i read, the availability of this option is based on the hplip driver.

i had another thought. can i define the printer model for m477mono as something other than mfp m477 that would force it to print black and white? (a trick i used to use with windows.)

is there anyone from the hplip team that can answer? i guess this could be a "design feature". or am i asking of the wrong team?

thanks!

Hi,

We are working on this issue and will get back to you soon.

Thanks,
Sujay

i may have found a work around.

created a new printer,
selected AppSocket/HP JetDirect,
unchecked the Color Management option,
selected as the Model:
       HP LaserJet 4000 Series pcl3, hpcups 3.17.11

so far, this is printing mono sheets.