I am having big problems with these cartridges. Only about a dozen pages were printed with each of the first three cartridges. Revain was extremely helpful and replaced both orders (4 cartridges) but the problem persists with these cartridges and I use my printer in my shop and they are a nuisance. Limited edition only. It seems the printheads are not releasing ink in the cartridges (which I checked), thanks. Frank W., Wilmington, Delaware 😢