Epson SUBLIJET IQ R1800 - Manual (Page 13)

6. Insert the plastic cross bars into place by sliding the notched end into the back of the chip
holders.
7. Slide the cartridge bay to the center of the printer to install the
sublimation cartridges. It must be to the left of the gray bar before
any cartridges can be installed.
8. Gently place the cartridges into the cartridge bay. Start with the
yellow cartridge on the left and attach the cartridges in this order:
9. Once all cartridges are attached and in place, slide the cartridge
bay back to its original position. The Quick Connect II™ tubes
should be underneath the gray bar on the printer.
(from left to right)
Yellow, Magenta, Cyan, Light Cyan,
Black, Red, Blue, Light Magenta