Oki B721 Maintenance Manual

45487001TH Rev.1
2-14 /
Oki Data CONFIDENTIAL
2. Installation
2.5.3 Installationandrecognitionconrmationofoptions
(1)InstallationofanAdditionalTrayUnit
An additional tray unit is intended for increasing the amount of paper that can be loaded in
the printer, and three additional tray units can be installed to the printer. An additional tray
holds530sheetsof70kgpaper,allowingtheprintertoprintupto2,220sheetscontinuously
whenusedwithastandardpapercassetteandamulti-purposetraytogether.
1. Turn off your printer, then unplug all the cables from the printer.
 Turnofftheprinterbyfollowingthestepsdescribedunder“Turningoffthepower”in
section 3.5.2.
2. Stacktheadditionaltrays,insertingtheprojectionsoftheloweradditionaltrayinto
the holes on the bottom of the upper additional tray one by one.
• Printerandoneadditionaltrayunit
• Printerandtwoadditionaltrayunits
• Printerandthreeadditionaltrayunits
Projection

Oki B721 Specifications

General

Print Technology	LED
Resolution	1200 x 1200 dpi
Processor	533 MHz
Memory	256 MB
Connectivity	USB, Ethernet
Duplex Printing	Standard