Epson COLOR 760 Printer Basics Manual page 14

Once you install an ink cartridge, do not open the clamp or remove the cartridge
except to replace it with a new one. The cartridge may become unusable
otherwise.
Do not use an ink cartridge beyond the date printed on the cartridge package. For
best results, use up the ink cartridges within six months of installing them.
Do not shake an ink cartridge; this can cause leakage.
Do not move the print head by hand; otherwise you may damage the printer.
Before transporting the printer, make sure the print head is capped in the far right
position and the ink cartridges are in place.
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