Oki B721 Maintenance Manual

45487001TH Rev.1
2-12 /
Oki Data CONFIDENTIAL
2. Installation
2.5.2 Connection of the AC cable
Powersupplyconditions
• Observethefollowingconditions:
  Current: 110-127VAC(Range99-140VAC)
   220-240VAC(Range198-264VAC)
  Frequency: 50/60Hz±2%
• Ifthepowersupplyisunstable,useavoltageregulator.
• The maximum powerconsumption of this printer is 1400W.Ensure that the power
supply is sufficient to operate this printer.
• We do not guarantee operation where anuninterruptible power system(UPS)or
inverterisused.Donotuseanuninterruptiblepowersystem(UPS)orinverter.
There is a risk of getting an electric
shock and/or causing fire.
• BesuretoturnoffthepowersupplyswitchwhenattachingorremovingtheACcable.
• BesuretopluginandunplugtheACcablewhileholdingontothepowersupplyplug.
• InserttheACcableplugcompletelyintothewallsocketsecurely.
•
Donottouchthepowercable,orprinter,ifyourhandsarewet.
• Installapowercableintheplacewhichisnotsteppedon,anddonotplaceathingona
powercable.
• Donotusethecabletiedinabundle.
• Pleasedonotusethedamagedpowercable.
• Donotusemulti-outletadapters.
• Do not connect this printer and other electric products to the same wall socket. If it is
connected simultaneously withanairconditioner, copier,shredder,etc.,theprinter
may malfunctionby the electric noise.When youconnect with the same wall socket
unavoidably, please use a commercial noise filter or a commercial noise cut transformer.
• Usethepowercablesuppliedtotheprinterandplugitdirectlyintoawallsocket.Donot
usethepowercableforotherproductfortheprinter.
• Do not use an extensioncable.When youuse it unavoidably,use the thing more than
rated 15 A.
• UseofanextendedcodemaynotoperateaprinternormallybyACvoltagedescent.
• Duringprinting,donotshutoffapowersupplyordonotpulloutapowersupplyplug.
• Whenyouuseitneither forconsecutiveholidaysnoratravelforalongtime,pullouta
powercable.
• Donotusethesuppliedpowercabletotheotherproducts.
About the connections of the power cableand grounding wire, the user should be given
thoroughexplanationonthebasisoftheuser’smanual.
Turningonthepower
(1) PlugtheACcableintotheACpowersocketofyourprinter.
(2) PlugtheACcableintotheelectricsocket.
(3) Holddownthepowerswitchforabout1secondtoturnonthepower.
ThePowerswitchLEDindicatorlightsupwhentheprinterturnson.Themessage“Ready
To Print” is displayed in the operator panel once printer is ready.
AC cable
Power switch

Oki B721 Specifications

General

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