Wrong colour printing

[Jonathan Cross]

I have a Canon 9500 mk2 printer, which has worked well until this week when I needed to print some A3+ (13" x 19") 'Who's who' photo sheets for our local church.  The prints look very wrong.  I have printed small blocks of red, blue, green, cyan, yellow, magenta and orange, both on this printer and on our everyday printer, a Canon MG7751 dye printer.  I just did them on plain paper in both cases, the settings being set to that.

On the 7751, the colours look alright, but on the 9500 red prints as orange.  I have tried deep cleaning, nozzle checks and alignment and changed the red cartridge, all to no effect.

Has anyone any suggestions?  I don't want to replace the printer if it can be persuaded to behave properly!

Thanks,

Jonathan

[dgberg]

Lets back up a little.
What does the nozzle print out look like?
I know you checked it but is it printing 100% with no missing lines or partial lines?

[Jonathan Cross]

Hello Dan,
No missing or partial lines, just orange instead of red.  The test patch I printed had RGB values of 255, 0, 0, so should be red.

Best wishes,

Jonathan

[digitaldog]

Test output using good color reference images designed for that task:

http://www.digitaldog.net/files/2014PrinterTestFileFlat.tif.zip

[smthopr]

I have a Canon 9500 mk2 printer, which has worked well until this week when I needed to print some A3+ (13" x 19") 'Who's who' photo sheets for our local church.  The prints look very wrong.  I have printed small blocks of red, blue, green, cyan, yellow, magenta and orange, both on this printer and on our everyday printer, a Canon MG7751 dye printer.  I just did them on plain paper in both cases, the settings being set to that.

On the 7751, the colours look alright, but on the 9500 red prints as orange.  I have tried deep cleaning, nozzle checks and alignment and changed the red cartridge, all to no effect.

Has anyone any suggestions?  I don't want to replace the printer if it can be persuaded to behave properly!

Thanks,

Jonathan

You are comparing pigment inks to dye inks on plain, uncoated, paper?  I suspect this is as "red" as these pigment inks can probably print on uncoated, plain paper.  You might want to search for some, not too expensive, coated inkjet paper for this project.

Maybe this?  https://www.adorama.com/ica7981a011.html?utm_medium=cpc&utm_source=adl-gbase

[ColourPhil]

I seem to recall that Pixma Pros (9000/9500) with Red and Green Inks only actually print from the Red and Green carts when using high quality media and a high quality resolution setting? This was according to a Canon service manual I saw years ago.
Otherwise they use conventional mixes of Magenta/Yellow or Cyan/Yellow.
They also may introduce colour management when the media type is set to 'Plain Paper'.
The Red and Green carts in mine seemed to last forever!
You say you tried nozzle checks, but how did they look?
The 'Red' ink in my nozzle checks used to look somewhat 'orange'.
Andrew's suggestion of printing good 'reference' images is your best bet to rule out colour management issues.
Cheers,
Phil

[Simon J.A. Simpson]

I'm guessing a bit here, Jonathan, but from your description of the symptoms it sounds like you are not getting enough magenta ink on the 9500 prints .

I have found with my Canon printers in the past that although the nozzle check will print OK you can still get problems with actual prints.

The first thing I would do is a series of print-head cleans.  If this doesn't work maybe try replacing the magenta cartridge ?

If this fails then you will have to do some serious and time consuming diagnosis by eliminating the possible causes, hardware and software, one by one.  In then end I have found that this is the only way, unless you make a lucky guess and hit on a solution !

I hope this helps.

[Jonathan Cross]

Thanks for all your suggestions.  From my test prints of individual colours, it seemd that the problem was with red.  I did another deep clean and then downloaded your test sheet, Andrew.  I printed it on coated paper as you suggested, Bruce, and bingo, it was fine.  I then printed a patch of RGB 255,0,0 and one of the people I wanted in the Who's Who, and again it was fine.  I have now printed the three 13"x19" that are needed and everything is sorted.  It must have been just lots of cleaning needed, so I am a happy again.

Thanks,

Jonathan