Why is my Canon imagePROGRAF PRO-300 adding red ink to one area of a black-and-white print?
Asked 12/24/2025
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I'm printing a Photoshop image that is in grayscale mode on a Canon imagePROGRAF PRO-300. Only this image shows a red-tinted patch in the same area of the sky every time I print it. Other images print normally, and I've already run a deep clean. What could cause a localized red cast on a black-and-white print?
Originally by bmargulies. Source · Licensed CC BY-SA 4.0
bmargulies
5mo ago
2 Answers
2
Double-check that the image is gray-scale, e.g., using free IrfanView, which can convert to grayscale.
Note that errors in the image might not show on screen, but might be misinterpreted by the printer driver, so ensuring that there is no hidden color information by forcing to grayscale again might fix it.
Another possibility is that the printer driver is misinterpreting data. Make sure the driver is up-to-date. Is the bit-depth too great for that driver? If so, try reducing color depth, which can also be done with IrfanView.
Originally by DrMoishe Pippik. Source · Licensed CC BY-SA 4.0
DrMoishe Pippik
4mo ago
0
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A localized red cast on just one black-and-white print is most likely a file or color-management issue rather than a clogged nozzle, especially if other images print fine.
Based on the answers, check these things:
- Confirm the file is truly grayscale with no hidden color data. Re-save or convert it to grayscale again.
- If needed, try reducing bit depth in case the driver is misreading the file data.
- Make sure your printer driver is current.
- Most importantly, verify the paper ICC profile. In the reported case, the problem was caused by using the wrong profile for the paper/printer combination: a Canon 310 profile was selected instead of the correct PRO-300 profile. Switching to the proper ICC profile fixed the red area.
Since the issue appears only on one image and in a repeatable location, the wrong ICC profile or a file-specific color/data issue is the most likely cause.
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