Patent · US Expired

Printing or copying appliance with exchangeable part units which have an identification device, method for operating an appliance of this type and toner containers for use in the same

US6181885A · kind A · utility

47Cited by
15References
42Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 3, 2000
Grant dateJan 30, 2001
Priority date
Expiry dateJan 3, 2020

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB41J2202/17
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

In a printing or copying device which has one or several exchangeable part units with a modular assembly, the part unit to be identified has an identification device with a non-volatile memory for storing function-relevant operating data of the part unit, said operating data being allocated to operating states. The part unit also has a communication interface for detachably connecting the identification device to a process control device of the printing or copying device.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.