#518 canon s800 difficulties

open
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5
2012-10-31
2012-10-31
rpolson
No

Hi-
I'm trying to print to my Canon S800 which has 6 ink cartridges from a Macbook running OS 10.6.8.. This printer is listed as supported in 5.2.9 , but with the disclaimer that the driver is experimental.

I've tried several options for color matching and color model, but test images don't print correctly. When trying to print test images of continous greyscale, the white and black ends are o.k., but there is a white band near where the darker blacks should be. Also continous colors also have strange gaps in continuity with some white bands in the middle.

Any help or suggestions would be appreciated and thanks for the good efforts.

Discussion

  • Robert Krawitz

    Robert Krawitz - 2012-10-31
    • labels: 456610 -->
    • assigned_to: mbroughtn --> gernot2270
     
  • Robert Krawitz

    Robert Krawitz - 2012-10-31

    This is a Canon issue, redirecting to the Canon maintainer.

     
  • Gernot Hassenpflug

    Hello,
    Thank you for the report. As this printer has many modes, the use of which depends on media, quality and color model (RGB or Grayscale) please see if you can attach test images from at least the plain media modes.

    Make sure color model is set to RGB (not CMYK or Grayscale), media type is set to plain paper, and then choose:
    600x600 DPI HIGH 2
    600x600 DPI HIGH
    600x600 DPI
    600x600 DPI DRAFT

    To test the mono modes, set color model to Grayscale, media type to plain paper, and then choose:
    600x600 DPI HIGH MONO 2
    600x600 DPI HIGH MONO
    600x600 DPI MONO
    600x600 DPI MONO DRAFT

    I think it is best to see what happens with these modes first, before even trying to test photo media modes.
    Best regards,
    Gernot Hassenpflug

     
  • rpolson

    rpolson - 2012-10-31

    Hi-
    I tried the 4 color options. The 600x600dpi high 2 gave correct black and whites and for the lighter colors was o.k., but for darker colors was not. The 600x600 draft seems to print correctly, although at draft quality (no surprise). The 600x600 High and 600x600 printed similar images, I took a picture and attached it.

     
  • Gernot Hassenpflug

    Hello,
    Thanks for the time to work through the modes. I don't see an attached file, perhaps it was too large to attach here.
    In that case, please send it to me at aikishugyo @ gmail . com.
    Some questions/comments:
    - high mode is likely to be more sensitive to calibration issues, as you note
    - 600x600 HIGH and 600x600 printed similar to what... to each other? Or to 600x600 DRAFT? Or to 600x600 HIGH 2?
    - if you have time, could you check the monochrome printing also please.

    Regards,
    Gernot Hassenpflug

     
  • rpolson

    rpolson - 2012-11-02

    HI-
    clarifications: 600x600 dpi high and 600x600 dpi look similar to each other but different than 600x600 dpi high 2.

    New results: none of the 4 grayscale images looked correct. A continuous grayscale bar looked o.k. with setings mono high 2 and draft, but not in either of the others. All showed strange bands where the purple and red go together.

    Best regards,
    Randy

     
  • Gernot Hassenpflug

    Hello,
    Thanks for the image you sent me by email. Indeed, with the color modes, black appears to strong, it is a calibration issue.

    Regarding monochrome modes, your report does not make sense to me:
    - you printed grayscale images using monochrome modes?
    - the monochrome images showed purple and red? So this is not monochrome printing?

    Comment:
    - monochrome modes use only K ink, but it may be that the printer firmware uses color inks even if only K data is passed to it. I doubt this is the case here though.

    Can you clarify the monochrome printing, perhaps with another image?

    Regards,
    Gernot

     
  • rpolson

    rpolson - 2012-11-02

    Hi-
    I was trying to describe quickly the printed paper in front of me and didn't do a good job.

    The test image source has many colors that vary continuously. When printed as grayscale the results on the paper are all grayscale. Areas on the paper that had strange bands (in gray) correspond to regions in the test image where there are blue and purple.

    I can to do other tests if necessary or try a new version when its available.

     

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