I hope this isn't a stupid question, or too redundant.
I have a 4900, a little over 3 years old, just past the extended warranty. It's been pretty trouble free, but over the last several months it's started doing automatic cleanings every few minutes--literally--if I'm printing a lot. I also go through periods where I get a lot of 0100 and 1433 error messages. I cleaned the wiper blade and capping station a couple of months ago, but it didn't really seem to change anything. I did have a clog lately in the orange, which took a couple of days (cleaning, waiting, cleaning, etc) to clear.
I'm planning to change the dampers and wiper blade, although I didn't buy a pump unit yet.
Would it be helpful to flush the print head as well? I know it's somewhat preventive maintenance, but I can't afford to replace this printer any time soon. What I was thinking was to do an initial fill with the piezo flush and let it sit for a day or two--will that do any good? (Since I don't actually have any clogs currently it doesn't seem necessary to take the head out, and besides I'm scared to….)
Is what the service manual calls "IS Unit" the dampers or the pump unit? And is it worthwhile to replace the dampers and wiper blade alone but not the pump unit?
Thanks very much for your time!
(I've got the set of refillable cartridges and the piezo-flush, as well as the service manual, adjustment program and PC notebook).