6 - 407.7 Detection of life of consumable items and parts to be changed on regular basisT Detection of life of consumable itemsToner cartridgeOperation time of Dispense Clutch that is operated to supply toner from cartridge is counted,and when it exceeds the regulated time, "Near Empty" occurs. When process is controlled inthe state of "Near Empty" and if toner patch concentration read by Sensor ADC doesn't reachthe target concentration, a change message is displayed.XERO CRUWhen Sensor TR0 in CRU used to detect Belt position detects silver seal more than theregulated number of times or Full Toner Sensor detects full toner state , a change message isdisplayed.T Detection of life of parts to be changed on regular basisDeveloper AssyWhen rotation time of Magnet Roll in Developer Assy exceeds the regulated value, a changemessage is displayed.Second BTRWhen number of prints exceeds the regulated value, a change message is displayed.FUSERWhen number of prints exceeds the regulated value, a change message is displayed.Chapter 6 Principles of Operation
