Internal Laser Radiation; Ozone Safety - Epson WorkForce AL-M400DN User Manual

Internal laser radiation

There is a Class III b Laser Diode Assembly that has an invisible laser beam inside the printer head unit.
The printer head unit is NOT A SERVICE ITEM, therefore, the printer head unit should not be
opened under any circumstances. An additional laser warning label is affixed to the inside of the
printer.

Ozone safety

Ozone emission
Ozone gas is generated by laser printers as a by-product of the printing process. Ozone is produced
only when the printer is printing.
Ozone exposure limit
The Epson laser printer generates less than 1.5 mg/h of continuous printing.
Minimize the risk
To minimize the risk of exposure to ozone, you should avoid the following conditions:
❏ Use of multiple laser printers in a confined area
❏ Operation in conditions of extremely low humidity
❏ Poor room ventilation
❏ Long, continuous printing together with any of the above
Printer location
The printer should be located so that the exhaust gases and heat generated are:
❏ Not blown directly into the user's face
❏ Vented directly out of the building whenever possible
AL-M300/AL-M400 Series
Safety Instructions
User's Guide
20