Jon Cone asked me to post in this forum...
Seems that I am only getting Piezoflush to charge on the Right side, but not the Left side...
I purchased an upgraded cleaning set for the Epson 4900 (refillable cartridges and upgraded the kit to 1 gallon of Piezoflush),
hoping a Flush Royale will unclog my blocked nozzles...!
Prior to the Piezoflush the Right side PK/MK/LK/C/VM had returned mostly to an unblocked state after a couple of Initial Charges with ink...,
Left side had big portions blocked of VLM, LC LLK (50 - 80% blocked) and smaller portions blocked of OR, GR and Y.
Filled the cleaning cartridges to fill line with Piezoflush, air caps off, and installed into printer.
Performed Initial Charge on both sides, let sit for 48 hrs,
performed Second Initial Charge, let sit for 12 hrs.
Nozzle check pattern came back approx. as before on the Left side, with Left side colors
being printed with the original colors (OR, GR, LLK, Y, VLM, LC).
The Right side is 100% unblocked, and prints with the faint pink cast of the piezoflush fluid.
A couple of additional Initial Charges and Cleanings of the left side (3 x CL2, 1 x CL3)
has improved the pattern of OR, GR, LLK, Y somewhat, but not at all VLM and LC.
Checking the ink cartridges, the right side cartridges are 1/2 - 3/4 inch below the initial fill level,
The left side cartridges are only 1/5 - 1/4 below the initial fill level.
Seems to me that the Left side has not sucked in the Piezoflush fluid at all,
but it seems to have gone into the Right side all fine.
Jon and team, what would you recommend as next steps?
The pump and suction during initial charge seems to have worked fine for the right side.
Is there a separate pump for the Left side or does Right & Left use the same pump / vacuum etc.?