My p600 uses the CISS and works great, but lately the vivid magenta channel has been clogging consistently. I use it weekly, so idol operation is not the problem. Usually 1 or 2 head cleaning cycles fixes the problem, but the next day it is clogged again. Sometimes none or almost none of the VM nozzles are firing. I don’t have problems with any of the other channels. Sometimes it takes 5 cycles to clear the VM, but the very next day there are some nozzles clogged.
Is this a clogging problem with the damper, or somewhere else in the printers ink delivery system? I just purchased a flush kit. My thinking is the printer needs a complete flush to clean it out, since it has never been done. It’s about 2+ years old, my understanding it a complete flush cleaning should be done once a year as part of the printers preventive maintenance. Is that correct? Does a flush cleaning sound like it will take care of the problem?