Other problemsOther problemsThe printer does not go on ............................................................................................................................. 630Cannot operate from the Control Panel .......................................................................................................... 630The printer takes time to start up .................................................................................................................... 630If the Printer Makes a Strange Sound ............................................................................................................. 631Messages advising to check the maintenance cartridge are not cleared ......................................................... 631The printer consumes a lot of ink .................................................................................................................... 631Ink Level Detection ......................................................................................................................................... 631The printer does not go onThe printer does not go onCause Corrective ActionThe printer is unplugged. Plug the power cord into the outlet, and then turn on the printer.The specified voltage is not supplied. Check the voltage of the outlet and breaker.(See "Specifications.") ➔ P.658Cannot operate from the Control PanelCannot operate from the Control PanelCause Corrective ActionThe control panel access lock is set. Release the control panel access lock.(See "Setting Control panel access lock.") ➔ P.461The printer takes time to start upThe printer takes time to start upCause Corrective ActionThe printer may have shut down incorrectly last time. This may hap-pen after power outages or if the printer is unplugged before it isturned off.In this case, the next time power is restored, the printer's hard disk ischecked, and startup may take some time.Please wait a while, because it may take several minutes tofinish checking the hard disk.If an error message is displayed after the hard disk check,follow the instructions indicated to resolve the problem.The printer does not go on iPF840User's GuideTroubleshooting Other problems630