Samsung CLX-3185 - Crum

Product spec and feature
Service Manual
2-33
Samsung Electronics
2.2.3 CRUM
The CLX-3185 series engine will be equipped with electronics that can read and write data into EEPROM
otherwise known as CRUMs that reside within 1) C, M, Y, K Toner cartridges.
The CRUM has a company ID.
The CRUMs contain xed data such as the low warning point, specied life point and also store the current
life count (pages count, pixels count, images count) and % of usage (gas gauge)
data.
■ In the case of Rell Toner Install
1) Perception of Rell Cartridge (when power is on or the cover is closed)
End of Life / life span data initialization -> judge to be Rell Cartridge
End of Life / life exhausted (simple rell) -> stop printing caused by life exhaustion
2) Operating
It is impossible to control appropriate development parameters, for there’s no toner specication data.
It runs with the setting of default development parameter. (Image quality will be degraded, for the lack of
appropriate respond to the change of time and environment.)
■ Process after CRU life expiration
1) Record the information of End of Life.
2) Clear some information of Operation Area.
-> Supplier/Model Name/MFC date/Serial Number (Manufacture Information)
-> Let cartridge reller initialize manufacture information and life span information.