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MX870 prints fine from Win10 and Win11 laptops, prints fine from iPhone (limited feature).  Cannot print from MacBook running Tahoe (MacOS 26.x) - via WiFi.  Have tried IP print and installed CUPS driver from Gutenberg.  Also tried at least one paid ...
Ink absorber almost full on my PIXMA MX870is there a user remedy for this?  Have seen notes (for other models) showing a procedure to wash and clean filters.is there a similar process for MX870 ?
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