2 - 2Chapter 2 Operation of Diagnostic8. "ON LINE" keyPress the "ON LINE" key holding down the " ← " and " → " keys to start the Diag (C/E) mode.9. "CANCEL" keyInstructs an interruptible Diag Code to stop. This key is ineffective for any uninterruptible DiagCode.10. "POWER SAVE" keyUse this key in special M/C start-up procedures.1.2 How to Start Up M/CFive ways of starting up M/C are available depending on an operation when turning on the powersupply.How to start up M/C and an operation when turning on the power supply are described below.How to start up M/C Operation when turning onpower supply UsageNormal boot Turn on the power supply withoutpressing any key.Use in a normal way.Long boot(with self-diagnosis)Turn on the power supply whilepressing the "POWER SAVE" and"FEED / SELECT" keyssimultaneously.In a normal boot sequence, [Normalboot diag] is executed to omit thedevice (ESS) diagnosis items andreduce the start-up time. On the otherhand, [Long boot diag] is executedfor more detailed diagnosis of thedevice. The diagnosis items and thedifferences are as follows:• RAM diagnosis:Write/Read/Verify test isexecuted for the entire area.• Program ROM diagnosis:The checksum is calculated tocheck the ROM and necessaryactions are taken.• Font ROM diagnosis:The checksum is calculated tocheck the ROM and necessaryactions are taken.NVRAM Clear Boot Turn on the power supply whilepressing the "POWER SAVE" and" ↑ " keys simultaneously.Initialize the configuration area(printer setting value, etc.) of NVRAM(ESS), and start up the system. (JobLog is not erased.)NVRAM/Spool Clear Boot Turn on the power supply whilepressing the "POWER SAVE" and" ↓ " keys simultaneously.If any error occurs when spooling inHDD and the system does not startup even though turning OFF/ON thepower supply, erase the spool area inHDD and start up the system. Then,initialize the NVRAM (ESS)configuration area (printer settingvalue, etc.) too. (Job Log is noterased.)Down Load Turn on the power supply whilepressing the "POWER SAVE" key.Set to the download mode whenupgrading the firmware version of themain unit.
