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  1. carolanivey

    Canon MP640 won't use large black ink reservoir

    Ah, ok. I have my laptop set to always print in grayscale/fast and never print photos, and I've never had a problem. I'm not sure what my husband's is set at, it could be a setting that uses the smaller reservoir.
  2. carolanivey

    Canon MP640 won't use large black ink reservoir

    Thank you!
  3. carolanivey

    Canon MP640 won't use large black ink reservoir

    How do I get the printer to switch to the larger black ink reservoir when the smaller one runs out? Thanks.
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