Chapter 33-113.2 Basic Sequence3.2.1 Basic Sequence of Operations at Power-On 0006-2867The following is the flow of operation occurring from when the machine is turned on until it enters standby state:F-3-7StandbyPower-OnInitializes the CPU,Clears the RAM, Sets the PortStarts communicationwith the image processor PCB.• Checks the reader unit (open/close).• Toner supply cover open/closed detection• Toner bottle present/absent detection• Checks paper (cassette, manual tray).• Detects size of paper (LGL; cassette).• Checks the thermistor (open/short).Fixing Heater OnThe primary charging AC/DC bias,Transfer Cleaning Bias ONThe developing AC/DC bias goes ON.The primary charging DC bias anddeveloping AC/DC bias go OFF.The main motor andprimary charging AC bias go OFF.The transfer cleaning bias goes OFF.Auto delivery occursif the paper leading edge sensor detects paper.A jam is identified if the paper leading edge seor the delivery sensor detects paper.Checks the machine inside for residual paper.NOYES0.2 sec after the fixing heater goes ON,is the fixing temperature 100˚C ? Or, has 0.5 secpassedafter the fixing heater went ON?A check is made for the presence/absence of a cwhen the primary charging AC bias is applied.The toner level is checked when the developingFixing Heater OFFMain Motor ONWhen the main motor goes ON, the machine always chthe level of waste toner.
