One of the 3 colors will not print
This problem may be due to blocked nozzles, faulty cartridges or a faulty print head or main board. The first thing to do is eliminate the cartridges. Do a proper cartridge change on both printers, but swap the yellow and cyan (blue) cartridges between printers rather than fit new ones. If either (or both) of the missing colours now appear, you know the problem is the cartridges; replace it (or them) with new ones.
For example, take printer A, with yellow missing. Do a cartridge change procedure on printer A, but instead of fitting a new yellow cartridge, put in the yellow cartridge from printer B (since you know this yellow cartridge works). If yellow now prints in printer A, you know the cartridge you took out is faulty - put a new yellow in printer B, and throw away the cartridge you removed from printer A. Repeat this process for printer B with the Cyan cartridge.
For one or both printers where the above does not solve the problem, then you can try soaking the print heads for 24 hours (or more), as follows. Turn the printer on, and as soon as the print head moves pull the power cord out of the back, or turn the printer off at the mains. You may now carefully move the print head by hand over to the left hand side out of the way. Look inside the print head parking area on the right and you will see a small rubber cup that comes up to cover the print nozzles when the head is parked (to stop it drying out). Use a syringe or dropper to fill this cup with head cleaning fluid or distilled water. DO NOT USE TAP WATER. Carefully push the print head across fully into its parking position on the right, so that the cup full of fluid comes up over the print head. Leave this for at least 24 hours, then try a head clean or two. If the missing colours now start to appear, try another clean or two. If still not perfect, leave for 24 hours and try again. If still nothing, report back.
×