Chapter 44-12F-4-144.4 Shut-Down Sequence4.4.1 Overview 0006-8356iR2270 / iR2870 / iR3570 / iR4570 / / iR2270N / / iR2870N / / iR3570N / / iR4570N /If the main power switch is turned off while the machine is accessing its HDD, damage can well occur on the HDD. To avoid such damage, the machine is providedwith a shut-down sequence.4.4.2 Overview (w/ HDD) 0008-8064iR2230 / / iR3530 /If the main power switch is turned off while the machine is accessing its HDD, damage can well occur on the HDD. To avoid such damage, the machine is providedwith a shut-down sequence.4.4.3 Flow of Operation 0006-8379iR2270 / iR2870 / iR3570 / iR4570 / / iR2270N / / iR2870N / / iR3570N / / iR4570N /The following diagram shows the flow of shut-down operation:F-4-154.4.4 Flow of Operation (w/ HDD) 0008-8065iR2230 / / iR3530 /The following diagram shows the flow of shut-down operation:Image memory (SDRAM)CPUHDDSystem area Image dataareaBootROMMain controller PCBSelf-diagnosisprogramBootprogram: access to the program during execution.: flow of the system program.- While the Boot Program Is Being RunSystemsoftwarePress on the control panelpower switch (3 sec or more)HDDprotection check modeHDDprotection execution modeMain power switch offIndicates the job being executed, and informs theuser that it will start the shut-down sequence.Moves to the shut-down sequence.Cancels any job on wait in print mode.Cancels any job on wait in print mode.Cancels any job being executed in fax mode.