Specifications
280 Installing Options
Installing the two optional paper cassette units
1. Turn the printer off and unplug the power cord and all the 
interface cables.
*OFF
c
Caution:
Make sure to unplug the power cord from the printer to 
prevent getting an electrical shock.
2. Carefully remove the optional paper cassette units from their 
cartons and place them on the floor.
Note:
❏ Make sure you have the four screws packed with each of the 
optional paper cassette unit.
❏ Remove the protective materials from the units.
❏ Keep all protective materials in case you want to ship the 
optional paper cassette units in the future.
*
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