Chapter 11-6DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS.1.3.5 CDRH Ordinances 0011-0549The Center for Devices and Radiological Health (CDRH) of the US Food and Drum Administration put into force ordinances related to laser products on August2, 1976. These ordinances apply to laser products manufactured on and after August 1, 1976, and sale of laser products is prohibited within the US unless they beara certificate of compliance. The following is the label that indicates compliance with the CDRH ordinances, and it must be found on all laser products sold in the US.F-1-7The description may vary from model to model.1.4 Functional Configuration1.4.1 Functional Construction 0007-4972The machine may be divided into the following 6 functional blocks: system control block, reader control block, printer control block, laser/scanner block, imageformation block, pickup/feeder block.The following is a diagram showing these blocks:F-1-81.5 Basic Sequense1.5.1 Basic Operation Sequence 0008-1692The operation sequences for the printer are controlled by the CPU in the DCNTboard in the engine control system. The table below indicates the purposes andengine operations of each period from when the power is turned on until a print operation is completed and each motor stops rotating. See the appendix for thetiming chart.T-1-1Period Purpose RemarksWAIT(Wait)From the power switch isturned on until ITB cleaningis completed.To clear a potential on thedrum surface and clean theITB.In this period, the printer executesresidual paper detection, toner leveldetection, image density calibrationcontrol, etc.STBY(Standby)From the end of the WAITor LSTR period until a printcommand is input from theinterface controller or thepower switch is turned off.To keep the printer ready toprint.INTR(Initialrotation)After the input of a printcommand from the interfacecontroller until the ITBHOME POSITIONDETECTION (HP1) signalfor the first color is detected.To stabilize sensitivity of thephotosensitive drum inpreparation for printing.System controlsystemLaser exposure systemPrint controlsystemPickup / feed systemfixing systemImage formation systemEeposure control system
