PiezoFlush solution was invented by and is manufactured by InkjetMall. This is an innovative solution that can be used to clean inkjet printers, flush inks from systems, or be used to safely store inkjet printers with a solution that does not promote drying out of the inkjet heads. It has been formulated for Epson and other piezoelectric inkjet heads and includes a pink colorizing agent so that when printing nozzle checks, the user can "see" the nozzle check patterns print.
There are two types of permanent clogs of which one is easier to remedy than the other. The easiest clog to repair is an external clog on the surface of the print head. In most cases this type of clog is due to
- head contact with the media
- a physical obstruction such as lint, hair, (you would be surprised what can get on there...)
- dried ink due to low humidity conditions or leaks of air into the capping station
- streaks of ink left on the print head after it is wiped by the wiper blade during a clean operation; due either to
- the buildup of ink on the wiper blade
- cupping of the wiper blade
- buildup of ink on the surface of the print head
Our external cleaning kit for large format printers give you safe materials with which to clean these areas. We have videos on how we apply this remedy Online. But, if you apply PiezoFlush to both the print head and the cleaning station including the wiper blade and the clog is not remedied, than its source is most likely internal and those are more difficult and costly to remedy.
If a clog permanently appears in a location that can not be remedied by external cleaning, then the clog may be located
- behind the surface of the jets such as in the tiny ink channel inside the print head
- just behind the print head where ink flows from the ink exchanger into the print head
- in the ink exchanger where the ink lines feed into the filters and dampers from the cartridge
- in the filters and dampers
PiezoFlush is usually successful when filled into cartridges and applied using the INIT FILL, allowing a rest period of from 24-48 hours, and then pulling out dissolved matter using a second INIT FILL. A nozzle test at that point should reveal a fully printed pink nozzle check (PiezoFlush is stained pink). If there is no change in the blockage, then it is possible that these jets are electronically dead.
PiezoFlush is more difficult to administer to the black channel in printers which use the same ink channel for both the MK and PK (which is nearly all Pro or Photo printers that use remote ink tanks (remote means that the inkjet cartridge is not actually riding back and forth on the print head). In this case, the MK and PK share an ink exchanger using a pair of valves, so that what affects MK affects PK and visa versa. To be successful with a black ink blockage PiezoFlush would need to be administered using both a MK and a PK cartridge, running INIT FILL procedures in both ink modes, potentially twice, in order to determine by nozzle check if the blockage is repaired. We have a guide that explains how to perform the INIT FILL in the instructions tab of this product.