- Joined
- Jun 16, 2006
- Messages
- 3,645
- Reaction score
- 85
- Points
- 233
- Location
- La Verne, California
- Printer Model
- Epson WP-4530
I recommend sealing the German refill hole to prevent two potential problems:
First, leaving the hole unsealed allows the daily fluctuations in ambient air pressure to gradually dry out the water in the ink and make it more concentrated.
Second, leaving the hole unsealed can interrupt the normal air flow in the cartridge resulting in an ink flow problem. The air normally flows through the air vent above the sponge compartment down through the upper sponge to the groves that go half way up the wall separating the two compartments and into the hole at the bottom of that wall to replace the ink in the reservoir that is drawn out of the cartridge. Instead, as the print head attempts to suck more ink out of the cartridge, it just gets air.
You don't need a seal as good as the one you would need for refilling at the top of the cartridge, just a small piece of flexible tape will do.
First, leaving the hole unsealed allows the daily fluctuations in ambient air pressure to gradually dry out the water in the ink and make it more concentrated.
Second, leaving the hole unsealed can interrupt the normal air flow in the cartridge resulting in an ink flow problem. The air normally flows through the air vent above the sponge compartment down through the upper sponge to the groves that go half way up the wall separating the two compartments and into the hole at the bottom of that wall to replace the ink in the reservoir that is drawn out of the cartridge. Instead, as the print head attempts to suck more ink out of the cartridge, it just gets air.
You don't need a seal as good as the one you would need for refilling at the top of the cartridge, just a small piece of flexible tape will do.