Title:
COMMUNICATION BETWEEN IMAGE FORMING APPARATUS AND REPLACEABLE SUPPLY ITEM
Document Type and Number:
Japanese Patent JP2019207686
Kind Code:
A
Abstract:
To perform efficient communication between a controller of an image forming apparatus and a chip on a supply item.SOLUTION: A toner container (supply item 100) attachable to an image forming apparatus 10 having a controller unit includes a housing 104 having a reservoir 102 for storing toner. A chip 110 is arranged on the housing and receives a first write command from the controller unit of the image forming apparatus. In addition, the chip determines whether a transmission cycle bit of the first write command matches a transmission cycle bit of a second write command received by the chip from the controller unit of the image forming apparatus prior to the first write command. When the transmission cycle bit of the first write command matches the transmission cycle bit of the second write command, the chip re-transmits a response to the second write command to the controller of the image forming apparatus.SELECTED DRAWING: Figure 1
Inventors:
NATHAN WAYNE FOLEY
JENNIFER TOPMILLER WILLIAMS
GREGORY SCOTT WOODS
JIMMY DANIEL MOORE JR
JENNIFER TOPMILLER WILLIAMS
GREGORY SCOTT WOODS
JIMMY DANIEL MOORE JR
Application Number:
JP2019074923A
Publication Date:
December 05, 2019
Filing Date:
April 10, 2019
Export Citation:
Assignee:
LEXMARK INT INC
International Classes:
G06F13/38; B41J29/38; G06F13/42
Attorney, Agent or Firm:
Kenji Sugimura
Mitsutsugu Sugimura
Kimizuka Emi
Mitsutsugu Sugimura
Kimizuka Emi