Platinum Printer Member
- Apr 19, 2007
- Reaction score
- Printer Model
- Canon MB5120, Pencil
I, too, find it difficult to believe the printer just ran out of ink and the owner shelved it instead of buying a new cartridge. Who knows?the "new" iP4200 that seems to suffer from mechanical problems.
Maybe a biological is involved in the loss of PGBK. Good thought! "Dregs" certainly conjures thoughts of biologicals, settled pigment particles, and/or effects of desiccation. I suppose there could be widespread disruption of biologicals within the channels of the nozzles during a soaking that could lead to a complete blockage of all nozzles at the same time. And, how to explain how all the nozzles returned to functions at a later time without any intervention?
It is a puzzle. One thing I would have done is on the day I discovered PGBK return to function I would have bought a lottery ticket.
Chemicals can kill the biological. But, how would one clear the clog? Ink clogs are soluble given a proper solvent. A solvent that would melt a biological might also damage the channels/nozzles, PCB board or tracings. Could it be as simple as alcohol to kill followed by a syringe modified to fit onto the ink port of the print head and then using gentle pressure to flush out the contaminant?I think no cleaning can save a print head blocked from biological growth.
Maybe a forum member can advise on a specific biological killer and method of clearing the clog without damaging the print head.
That would be my second choice. I would reinstall the "new" print head back into the "new" printer to see if it works and what issues it might have. My reasoning is that if the "new" printer functions properly then use it and shelf the current printer for potential future use. I would only use the "new" print head in the current printer if certain malfunctions of the "new" printer are found, like purge pump bad, etc.to get the "old" iP4200 working again with PGBK would be to install the print head from the "new" iP4200
Importantly, if the "new" printer or print head is not functioning properly then we know what that issue(s) is and can then discriminate that issue from a problem that is unique to the current printer, if and when we use the "new" print head in the current printer. If we go straight to using the "new" print head in the current printer, bypassing trying it out in the "new" printer, then we may not know if any problem that occurs is due to the "new" print head or the current printer.