Epson ActionLaser 1400 Reference Manual page 43

Be sure the printer is level.
Do not
Be sure to adjust the paper guides so the paper can slide in
and out freely.
Never let more than 50 sheets accumulate in the exit tray.
Try turning over the stack of paper in the tray. Most paper
packages indicate which side should be face up.
Do not load paper while the printer is operating.
The Ready light does not turn on when you turn the printer on
Open the printer's front cover and make sure the toner
cartridge is installed securely.
Turn off the printer and check the power cable connections
between the printer and the electrical outlet; then turn the
printer back on
If the electrical outlet is controlled by an outside source such
as a wall switch, make sure the switch is turned on or plug
another electrical device into the outlet to make sure the outlet
is operating properly.
The Ready light is on but nothing prints
Your computer may not be properly connected to the printer.
Perform the procedure 'Testing the computer-to-printer
connection" in Read This First.
The interface cable may not be plugged in securely. Check both
ends of the cable between the printer and the computer. Be
sure to secure the connector using the wire retaining clips.
more than 100 sheets of paper in the tray.
load
Troubleshooting 3-3