Data communication apparatus capable of rewriting firmware

Details Data communication apparatus capable of rewriting firmware Data communication apparatus capable of rewriting firmware

2007-05-01

2007-05-01

Donaghue, Larry D. (Department: 2154)

Electrical computers and digital processing systems: multicomput

Computer conferencing

Demand based messaging

C717S171000, C717S176000

Reexamination Certificate

active

10106099

ABSTRACT:
When electronic mail with firmware attached is received at a data communication apparatus, determination is made whether it corresponds to firmware data of a write process allowable state. In the case of write process allowable data, the message is downloaded from a mail server to a printer controller. Then, derived firmware is transmitted to an image formation apparatus. A firmware rewrite permission is obtained. When the firmware attached to the message does not attain a write process allowable state, waiting is conducted for reception of write process allowable firmware with the data left in the mail server. As a result, a data communication apparatus is provided that can rewrite firmware appropriately independent of a transmitted and received order of divided firmware.

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