Problem with a CanonS750

[RonZimmerman]

My Canon printer is not printing green, and pictures have a redish tint. I cleaned the printhead with Windex and Alcohol, but no help. My next step is to clean the purge pads, but I wanted some of your excellent advice. I uploaded my Service test page and my nozzle check, but I am not sure how to analyzing them. Any explanation of the service page would be greatly appreciated. I'm also still trying to figure out how to put a picture on my post.

 

[ghwellsjr]

Do your three narrow cartridges have the letters "C", "Y", and "M" on them? I'm guessing that instead of "C" you have one that has "PC" on it.

The only thing you care about on your service test page is whether there are any missing horizontal segments in the grid patterns at the very top of the page. There is one large grid pattern for the black and two grid patterns for each of the three colors. It is very hard to tell from your scans whether there are any missing segments but you should be able to see them with the naked eye or using a magnifying glass if your eyes are like mine.

As far as posting two images on the same post, you can either post a reply to your first post and put the second image there, just like you did when you started your second thread, or you can just edit your second post and copy the line of text that starts with the square bracket containing the link to the image and then edit your first post on this thread and paste it at the end. It would be a good idea for you to do this and delete your second thread or else you may get disjointed responses on both threads.

 

[RonZimmerman]

Thanks for the reply. I do not have a pc on the blue, it is a BCI-3ec Cyan. The grids are missing a few lines. I guess that indicates a few plugged nozzles. The yellow prints very light and is difficult to see. Should I clean the pronthead again and clean the purge plastics?

 

[ghwellsjr]

A few missing segments are not going to produce a big offset in color. Don't bother cleaning the printhead until we figure out why your colors are so far off.

Do you have Canon original cartridges?

Do you have any more cartridges?

Do you refill your cartridges?

 

[RonZimmerman]

Yes, No, No

 

[ghwellsjr]

Did this problem start soon after you replaced any cartridges or has it been a long time since you replaced any cartridges?

One thing that is very confusing to me is that your nozzle check which you posted on another thread shows only 128 nozzles for each of the colors whereas your service test page shown on this thread shows the correct 256 nozzles. Could you please do another nozzle check on a piece of photo paper and upload it here in the highest resolution possible? Just upload the top of the page where the grid lines are. And then please delete your other thread, we don't want other people trying to help there.

 

[RonZimmerman]

I replaced the Y recently and I have 2 new Cs. The B is low. This printer was not used last winter whcih made me think it might be clogged. The specs on the Canon page say "Number of Nozzles Black - 320, Color - 256 each ". Thanks for your help.

 

[RonZimmerman]

I looked at the Nozzle Check for my Printer on several web sites. It seems very similar to mine. How can you tell its only printing 128 nozzles? I'm wondering if the purge pads are causing the nozzles to soak up the colors?

 

[ghwellsjr]

If you count the number of horizontal line segments on your nozzle check (including the ones that are absent) you can see that the black is ten rows high by 32 segments wide which is 320 like the spec says. But for each of the colors, there is 4 rows high by 32 wide which is only 128. But on your service test page, there are two sets of grid patterns for each color which brings the total to 256.

Your pictures are so fuzzy I cannot draw any conclusions. What I'd like you to do is reprint both the nozzle check and the service test page on photo paper and rescan them at the highest resolution possible. Save them as a bitmap (.bmp). Then crop them in paint so that only the grid patterns remain on the image. There is no point in uploading all that white space or the other patterns below the grid patterns because you are limited in the size of the files that you can upload and I need to be able to see each line segment clearly.

 

[RonZimmerman]

Done, can't upload the bitmap so I changed it to a jpeg.