Diagnostic information 2-59
4500–E220/E321/E323
Power–on operations
To access the printer operations for the E220, E321, E323:
1. Turn off the printer.
2. Press and hold the buttons in the following table for the
operation needed.
3. Turn on the printer. Hold the buttons until the lights cycle on the
operator panel.
4. Print menus by closing the top cover and then pressing
Continue until the lights flash (see samples on page 3-38 and
page 3-39).
Operation Power–on action
Enter configuration
menu mode
1. Power on with top cover open and Continue
pressed.
2. Close cover once the Error light is displayed.
Print the print quality
test pages
In configuration mode, press and release Cancel
until the top two lights come on. Press and hold
Continue until lights flash. See the note in item 3
page 3-40 for more information (Cartridge Lockout
function enabled).
Enter diagnostics
mode
1. Power on with top cover open and Cancel
pressed.
2. Close cover once the Error light is displayed.
Print the print quality
test pages
In diagnostic mode, press and release Cancel
until the top two lights come on. Press and hold
Continue until lights are on. Press and hold
Continue until lights flash. See the note in item 3
page 3-40 for more information. (Cartridge
Lockout function disabled)
Reset NVRAM and
enter normal mode
1. Power on with top cover open and both
Continue and Cancel buttons pressed.
2. Close cover once the Error light is displayed.