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Laboratory Test ReportComparative Energy Consumption EvaluationJUNE 2009Xerox WorkCentre 7435 vs. Competitive Color MFPsCanon ColorimageRUNNERC2550Canon ColorimageRUNNERC3080iKonica Minoltabizhub C253Ricoh AficioMP C2550SharpMX-C311Xerox WorkCentre 7435TEST OBJECTIVEConduct a comparative energy consumption evaluation of Xerox’s WorkCentre 7435 vs. the competitive devices noted herein based on BLI’s proprietarytest methods. Competitive devices include the Canon Color imageRUNNER C2550, Canon Color imageRUNNER C3080i, Konica Minolta bizhub C253,Ricoh Aficio MP C2550 and Sharp MX-C311.TEST METHODOLOGYFor each device, energy consumption was measured using BLI’s multiple-page job stream test suite, a real-world four-hour test that begins with warmup from overnight sleep mode and encompasses all modes, including simplex black and color print, duplex black and color print, idle, energy-save (ifapplicable) and sleep modes and warming up from these modes. The number of pages printed was based on the average monthly volumes for eachdevice (determined by its speed range). All devices were configured the same and were tested with their most energy-efficient settings activated (forinstance, set to go into the best energy-save and deepest sleep mode as quickly as possible after printing). Results of the test are used to calculateprojected annual energy consumption and cost, including nights and weekends.PERFORMANCE OVERVIEWThe Xerox WorkCentre 7435 consumes significantly less energy than all of the competitive devices in the test group when running BLI’s environmentaljob stream test, which replicates real-world usage. In fact, the WorkCentre 7435’s projected annual energy cost is less than half that of the average ofthe units tested and 75.5% less than that of the competitive unit with the highest annual energy consumption.Since the WorkCentre 7435 has a faster than average tested recovery time from sleep mode, which was tested after it remained dormant overnight andafter it went into sleep mode during the day, it achieves its energy consumption advantages without sacrificing productivity. Plus, the WorkCentre 7435can be programmed to go into sleep mode faster than some other units tested, which helps lower its overall energy consumption.In addition, the WorkCentre 7435’s lower-speed sister model, the WorkCentre 7428, consumed less energy than all other tested devices during BLI’senvironmental job stream test. Based on these findings, it is BLI’s conclusion that, although not tested in our lab, the lower-speed WorkCentre 7425,which uses the same engine as the WorkCentre 7435/7428 Series, will be able to achieve similar results. 2008BuyersLaboratoryInc. reproducedWARNING: Thismaterialis copyrightedby BuyersLaboratoryInc. and is thepropertyof BuyersLaboratory.proprietaryreportoror manner,excerpts fromthis report,in any manner,whetherThisreporthas beenwiththe writtenpermissionof BuyersLaboratoryInc.soleAnyduplicationof thisreport,Duplicationin whole oforthispart,in any formwithoutthe writtenpermissionofprinted or BuyerselectronicLaboratory,(including, butlimited to,copying,faxing,or use on afax-backsystem),is illegal andInc.strictlyforbidden torsbe prosecuted to theis notunlawfulandviolatorswillscanningbe prosecuted. 2009BuyersLaboratoryTo purchasereprints,contactBLI at(201)488-0404(x17)or at willinfo@buyerslab.com.fullest extent of the law. To purchase reprints of any BLI reports or articles, contact BLI at (201) 488-0404. Buyers Laboratory Inc., 20 Railroad Avenue, Hackensack, NJ 07601. Contact us at info@buyerslab.com. 070807

Comparative Energy Consumption EvaluationEnergy Consumption DuringAn Eight-Hour Business Day16-Hour Sleep ModeEnergy ConsumptionCanon Color imageRUNNER C3080i.5694Canon Color imageRUNNER C3080i.4320Canon Color imageRUNNER C2550.5496Canon Color imageRUNNER C2550.3481Sharp MX-C311.6462Sharp MX-C311.1500Konica Minolta bizhub C253.4708Konica Minolta bizhub C253.2336Ricoh Aficio MP C2550.2842Ricoh Aficio MP C2550.0992Xerox WorkCentre 7435.2698Xerox WorkCentre 7435.02390.2.4.6.80kWh.1.2.3.4.5kWh24-Hour Business DayEnergy Consumption(Including 16-Hour Sleep Mode Energy)Weekend Energy ConsumptionCanon Color imageRUNNER C3080i1.0014Canon Color imageRUNNER C3080i1.2960Canon Color imageRUNNER C25500.8977Canon Color imageRUNNER C25501.0443Sharp MX-C3110.7962Sharp MX-C3110.4500Konica Minolta bizhub C2530.7044Konica Minolta bizhub C2530.7008Ricoh Aficio MP C25500.3834Ricoh Aficio MP C25500.2976Xerox WorkCentre 7435.2937Xerox WorkCentre 74350.07170.2.4.6.801.0kWh.51.01.5kWhAnnual Energy ConsumptionCanon Color imageRUNNER C3080i331.76Canon Color imageRUNNER C2550291.30Sharp MX-C311233.60Konica Minolta bizhub C253222.40Ricoh Aficio MP C2550116.69Xerox WorkCentre 743581.270100200300400kWh2 2008BuyersLaboratoryInc. reproducedWARNING: Thismaterialis copyrightedby BuyersLaboratoryInc. and is thepropertyof BuyersLaboratory.proprietaryreportoror manner,excerpts fromthis report,in any manner,whetherThisreporthas beenwiththe writtenpermissionof BuyersLaboratoryInc.soleAnyduplicationof thisreport,Duplicationin whole oforthispart,in any formwithoutthe writtenpermissionofprintedor electronicis(including,notviolatorslimited to,willcopying,faxing, scanningor useBuyerson a fax-backsystem),is illegaland strictlyreprints,forbiddencontactwithout writtenfrom BuyersViolators will be prosecutedto theBuyersLaboratory,unlawfulbutandbe prosecuted. 2009LaboratoryInc.To purchaseBLI atpermission(201) 488-0404(x17)Laboratory.or at info@buyerslab.com. 060903fullest extent of the law. To purchase reprints of any BLI reports or articles, contact BLI at (201) 488-0404. Buyers Laboratory Inc., 20 Railroad Avenue, Hackensack, NJ 07601. Contact us at info@buyerslab.com. 070807

Comparative Energy Consumption EvaluationProjected Annual Energy CostsThe costs in the following table represent annual energy cost projections based on conducting BLI’s Job Stream Matrix over four hours. Includedin the projection is the cost of power for the device while in sleep mode 16 hours daily and over the weekend. To calculate usage over an eighthour workday, the total energy consumed after four hours of testing is multiplied by two. Total yearly energy consumption is calculated basedon the total energy used during a typical eight-hour day, plus overnight and weekend sleep energy. The energy costs are based on the January2009 energy rate for the United States: USD: 0.1061. 35.20 40.00 35.00 30.91 30.00 23.60 25.00 20.00 on3080i2550311-CXMmageRinolMaonicColKAnnual 507435WorkCentr eerox50.00%-30.00%-61.80% 0.0036.90%-45.20%S 5.00Col 10.0055.90%9.70%4.50% 12.38C253 15.00X 24.7870.00%Percent Difference from the AverageRecovery Time (in seconds)Recovery time is tested separately from the Job Stream tests. To test the unit’s recovery time from idle mode and its various energy-save andsleep modes, a single page is sent to the device after being in idle mode for 30 seconds, energy-save mode for five minutes, sleep mode for 15minutes and again after being in sleep mode overnight (about 12 hours). The devices are set to go into energy-save mode and sleep mode afterthe shortest intervals of time possible.In Seconds160140Ricoh Aficio MP C2550120Xerox WorkCentre 7435100Konica Minolta bizhub C25380Canon Color imageRUNNERC3080i60Canon Color imageRUNNERC255040Sharp ep 2008BuyersLaboratoryInc. reproducedWARNING: Thismaterialis copyrightedby BuyersLaboratoryInc. and is thepropertyof BuyersLaboratory.proprietaryreportoror manner,excerpts fromthis report,in any manner,whetherThisreporthas beenwiththe writtenpermissionof BuyersLaboratoryInc.soleAnyduplicationof thisreport,Duplicationin whole oforthispart,in any formwithoutthe writtenpermissionofprintedor electronicis(including,notviolatorslimited to,willcopying,faxing, scanningor useBuyerson a fax-backsystem),is illegaland strictlyreprints,forbiddencontactwithout writtenfrom BuyersViolators will be prosecutedto theBuyersLaboratory,unlawfulbutandbe prosecuted. 2009LaboratoryInc.To purchaseBLI atpermission(201) 488-0404(x17)Laboratory.or at info@buyerslab.com. 060903fullest extent of the law. To purchase reprints of any BLI reports or articles, contact BLI at (201) 488-0404. Buyers Laboratory Inc., 20 Railroad Avenue, Hackensack, NJ 07601. Contact us at info@buyerslab.com. 070807

Comparative Energy Consumption EvaluationTime Required To Enter Sleep ModeAfter programming each device to enter sleep mode after the shortest intervals of time possible, the first Job Stream test document was sent toeach device and the time taken to go into sleep mode was recorded. The Xerox, Ricoh and Sharp devices were able to be programmed to go intosleep mode after one minute of non-use, while the Konica Minolta device was able to be programmed to go into sleep mode after two minutesof non-use.Although both Canon devices could be programmed to go into sleep mode after 10 minutes of non-use, which is the shortest interval of time possible, they were unable to go into sleep mode during testing. No other devices tested had this problem.Shortest Recorded Time to Sleep ModeXerox WorkCentre 74351 minuteRicoh Aficio MP C25501 minuteSharp MX-C3111 minuteKonica Minolta bizhub C2532 minutesCanon Color imageRUNNER C3080i*Canon Color imageRUNNER C2550** Both Canon devices were unable to enter sleep mode after their shortest programmed times of 10 minutes. Instead, both Canon devices went into their bestenergy-save mode after 5 minutes, which is the best energy-save settings available, and remained there. Energy-save mode uses more energy than sleepmode.SUPPORTING TEST DATAProjected Annual Energy Consumption/CostsAnnual EnergyConsumption (kWh)Annual Cost81.27116.69222.40233.60291.30331.76212.84 8.62 12.38 23.60 24.78 30.91 35.20 22.58Xerox WorkCentre 7435Ricoh Aficio MP C2550Konica Minolta bizhub C253Sharp MX-C311Canon Color imageRUNNER C2550Canon Color imageRUNNER C3080iCompetitive Average% Difference in Annual Costfrom the Competitive Average-61.8%-45.2%4.5%9.7%36.9%55.9%Recovery Time (in seconds)Ricoh Aficio MP C2550Xerox WorkCentre 7435Konica Minolta bizhub C253Canon Color imageRUNNER C3080iCanon Color imageRUNNER C2550Sharp MX-C311Competitive Average4Idle16Energy-Save19Daytime Sleep25Overnight 242434515159.5 2008BuyersLaboratoryInc. reproducedWARNING: Thismaterialis copyrightedby BuyersLaboratoryInc. and is thepropertyof BuyersLaboratory.proprietaryreportoror manner,excerpts fromthis report,in any manner,whetherThisreporthas beenwiththe writtenpermissionof BuyersLaboratoryInc.soleAnyduplicationof thisreport,Duplicationin whole oforthispart,in any formwithoutthe writtenpermissionofprintedor electronicis(including,notviolatorslimited to,willcopying,faxing, scanningor useBuyerson a fax-backsystem),is illegaland strictlyreprints,forbiddencontactwithout writtenfrom BuyersViolators will be prosecutedto theBuyersLaboratory,unlawfulbutandbe prosecuted. 2009LaboratoryInc.To purchaseBLI atpermission(201) 488-0404(x17)Laboratory.or at info@buyerslab.com. 060903fullest extent of the law. To purchase reprints of any BLI reports or articles, contact BLI at (201) 488-0404. Buyers Laboratory Inc., 20 Railroad Avenue, Hackensack, NJ 07601. Contact us at info@buyerslab.com. 070807