Chapter 77-24F-7-33The following shows the sequence used to supply toner from the sub hopper to the buffer:F-7-34The machine uses the following sequence of operations to move toner from the toner bottle to the sub hopper:2 sec 0.3 secToner supplysequence startedToner supply STBYDeveloping assemblytoner sensorMagnet rollerIf a toner absent condition is identifiedfor 0.3 sec or more, the toner supplysequence is started.If continuously supplied, overflow will be apossibility with the stop not taking place in time.If a toner present condition is detected for 0.7sec or more, the toner supply sequence is ended.If the toner supply sequence is not finished at the end of machine operation,the sequence will be resumed during the next operation.If a toner absent condition is detected for 20sec or more, indicates error code E020.Supply Supply Supply90 secToner supply sequencestarted Toner supply STBYBuffer toner lower limit sensorBuffer toner sensorSub hopper feedscrewIf a toner absent condition is detectedfor 0.5 sec or more, the toner supplysequence will be started.If a toner present condition is detected for0.5 sec or more, the toner supply sequencewill be ended.If the toner supply operation is not finished at the end ofmachine operation, the operation will be continued untilthe sequence is over.SupplyIf a toner absent condition is detected for 60 sec or morewith the sub hopper toner sensor detecting a toner absentcondition for 90 sec or more in continuous printing mode,a message will appear on the touch panel to indicate theabsence of toner, and the machine will stop operation.If a toner absent condition is detected for 60 sec ormore when image output is started immediately afterreplenishment of the toner bottle, a messagewill be indicated on the touch panel for a supply of toner,and the machine operation will be stopped.60 sec
