Epson COLOR 300 manual 6-4

4. Hold down the E load/eject button and turn on the printer;
then release the button.
The printer prints an operation check page including the
version of your printer’s ROM, the ink counter code, and a
nozzle check pattern. Here is a typical printout:
The above sample is in black and white, but the actual test prints
in color (CMYK).
26-B+
15
LHudson++ Ref. Guide
Rev.c
A5 size Chapter 6
03-04-97 DR, pass 0
6-4 Troubleshooting