Specifications

Upgrades NTX ROM Upgrade - 2
4 Install the new ROMs, making sure that the notch on each
chip faces the I/O bracket.
Note: Install each ROM in its proper socket. They are
not interchangeable. Look at the characters printed on
each ROM chip to identify a ROM; you can find the
marking at the end of the first line of print. This
marking matches the ROM socket location on the I/O
board.
5 Plug in and switch on the printer. Wait about 3 minutes.
Note: If the printer does not produce a startup test page,
run the NT/NTX ROM and SIMM Test to identify any
failing ROM chip. Replace any ROM that the test
identifies as bad.
6 Read the copyright information along the right edge of
the test page.