epson r3000 prints have random wet blobs of black ink: Printers and Printing Forum: Digital Photography Review
![Black ink blobs appearing on prints after switching from MK to PK cartridge in R3000 - Printer Maintenance & Cartridges - InkjetMall Community Black ink blobs appearing on prints after switching from MK to PK cartridge in R3000 - Printer Maintenance & Cartridges - InkjetMall Community](https://community.inkjetmall.com/uploads/default/original/2X/2/284ae8964fc376782b0616b0b6650db02bc76e55.jpg)
Black ink blobs appearing on prints after switching from MK to PK cartridge in R3000 - Printer Maintenance & Cartridges - InkjetMall Community
Which black ink damages the Epson ink switch valve? | PrinterKnowledge - Laser, 3D, Inkjet Printer Help
![Black ink blobs appearing on prints after switching from MK to PK cartridge in R3000 - Printer Maintenance & Cartridges - InkjetMall Community Black ink blobs appearing on prints after switching from MK to PK cartridge in R3000 - Printer Maintenance & Cartridges - InkjetMall Community](https://community.inkjetmall.com/uploads/default/original/2X/9/947a2ddfc93fbc507070a5114c8555659ac2246a.jpg)