Image forming system

Details Image forming system Image forming system

1989-11-15

1992-06-23

Coles, Jr., Edward L.

Facsimile and static presentation processing

Facsimile

358406, 358407, 358442, 358468, 358296, H04M 100

Patent

active

051248093

ABSTRACT:
An image forming system includes a processor, a print engine and optional units. A serial signal line couples the print engine and the optional units. The processor has a command sending function of sending the print engine a command which asks the print engine whether or not the print engine can communicate with each of the optional units. The print engine has a function of managing a variety of information including data relating to status of the optional units, and a function of determining, in response to the command, as to whether each of the optional units is in a communication active state where it can communicate with the print engine on the basis of the managed information and a function of sending the processor a response which indicates information on whether each of the optional units is in the communication active state.

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