Xpres Subli-Print Epson R1800: Feeder System Troubleshooting Guide - Manual (Page 15)

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APPENDIX F - How to Prime the Ink Cartridges and Check the Flow of Ink
If ink is allowed to fall below the recommended minimum levels on the bottles it may be
possible for air to get into the tubing and ultimately into the cartridge. This will prevent the
printer working (colors completely missing on nozzle checks). This is completely different to the
tiny amount of air in the tube during first install and the air needs to be removed to re-prime
the system.
Also there may be a blockage within the system which will prevent the flow of ink and
eventually cause printing problems and bad nozzle checks.
To prime and check the flow of ink through the cartridges:
1. Remove the cartridges and distich the tubes from the printer.
2. If it is just one color that will not get the nozzle check, make sure that there is no
blockage with that color, in order to do this disconnect the lure from the tube running
from the bottles. Insert the syringe and draw the ink into the syringe, if the ink flows
into the syringe then there is no blockage with the flow from the bottle. If you dont get
a nozzle check on more than one color repeat this process for each color.
3. Ensure that there are no kinks in the tube between the lure and the cartridge as this
would reduce or completely stop the flow of ink.
If the flow of ink through the cartridge is fine then re-priming the cartridge may be necessary.
Note: This is only for Easy Flow IV systems