Chapter 11-71.5.2 Power-on Sequence 0008-1693The power-on sequence is the first operation executed by loads based on the firmware previously stored in the printer. It is indicated in the flowchart below.The power-on sequence is executed from when the power is turned on until the printer enters the standby status.F-1-9PRINT(Print)From the end of the INTRperiod until the ITB homeposition for the secondarytransfer is detected.To form an image on thephotosensitive drum based onthe VIDEO signal input fromthe interface controller andtransfer a toner image to theITB.LSTR(Lastrotation)From the end of a printoperation until the mainmotor stops its rotation.To transfer secondarily atoner image on the ITB to apaper and then deliversoutpaper with toner fixed on.Instant a print command is inputfrom the interface controller; theinitial rotation starts.Fan onCPU initializationASIC initializationVideo interface communication readyVideo interface communication startPrinter ID checkPower onScanner motor initial drivedriveImage stabilizationcalibration controlMaximum image density control (D-max)Failurecheck periodMotor initial drive* Main motor* Toner cartridge motor* Developing rotary motor* Fixing motor* Engaging motorStandbyResidualpaper/door opencheck periodHalftone calibration detection control (D-half)EP-87 toner cartridgepresence/life checkEP-87 drum cartridgepresence/life checkMemory tag (for toner cartridges, drumcartridge) communication startScanner motor initial drive check
