Advanced Guide > Troubleshooting > Message Appears on the Computer ScreenU331Message Appears on the Computer ScreenError Number: B200 A printer error has occurred. Turn the printer off and unplug the power cord of theprinter from the power supply. Then contact the service center. Is DisplayedError Number: **** A printer error has occurred. Turn the printer off and then on again. If this doesn'tclear the error, see the user's guide for more detail. Is DisplayedError Regarding the Power Cord Being Unplugged Is DisplayedWriting Error/Output Error/Communication ErrorOther Error MessagesThe Inkjet Printer/Scanner/Fax Extended Survey Program Screen Is DisplayedError Number: B200 A printer error has occurred. Turn the printer off and unplug thepower cord of the printer from the power supply. Then contact the service center. IsDisplayedTurn off the machine, and unplug the power cord of the machine from the power supply.Contact the service center.Error Number: **** A printer error has occurred. Turn the printer off and then on again. Ifthis doesn't clear the error, see the user's guide for more detail. Is Displayed"****" is displayed in the alphanumeric character and depends on the error occurred.5100 Is DisplayedConfirm the movement of the FINE Cartridge Holder blocked.Cancel printing from your computer, turn off the machine. Then clear the jammed paper orprotective material that is preventing the FINE Cartridge Holder from moving, and turn on themachine again.ImportantBe careful not to touch the components inside the machine. The machine may not printout properly if you touch it.If the problem is not resolved, contact the service center.Four-Digit Alphanumeric and "Printer error has occurred." Is DisplayedTurn off the machine, and unplug the power cord of the machine from the power supply.Plug the machine back in and turn the machine back on.If the problem is not resolved, contact the service center.Error Regarding the Power Cord Being Unplugged Is DisplayedThe power cord may have been unplugged while the machine was still on.Check the error message that appears on the computer, then click OK.The machine starts printing.See Notice for Unplugging the Power Cord for unplugging the power cord.Writing Error/Output Error/Communication ErrorCheck 1: If the POWER lamp is off, make sure that the power plug is plugged in,then turn the machine on.While the POWER lamp is flashing green, the machine is initializing. Wait until the POWERPage 641 of 707 pagesMessage Appears on the Computer Screen