Interface system

• US 6,196,735 B1
• Filed: 11/17/1999
• Issued: 03/06/2001
• Est. Priority Date: 11/18/1998
• Status: Expired due to Term

• Current Assignee: RISO Kagaku Corporation
• Original Assignee: RISO Kagaku Corporation
• Inventors: Inamine, Noboru
• Primary Examiner(s): Hilten, John S.
• Assistant Examiner(s): Nolan, Jr., Charles H.
• Application Number:
  US09/441,668
• Time in Patent Office: 475 Days
• Field of Search: 400/76, 400/61, 400/70, 400/74, 101/114, 101/115, 101/116, 101/129
• US Class Current: 400/76
• CPC Class Codes: G06F 3/1207 resulting in the user being informed about print result after a job submission
• CPC Class Codes: G06F 3/1229 Printer resources management or printer maintenance, e.g. device status, power levels
• CPC Class Codes: G06F 3/1259 Print job monitoring, e.g. job status
• CPC Class Codes: G06F 3/1284 Local printer device

Abstract

An interface system transmits printing data from a computer to a stencil printer and transmits status information on the stencil printer to the computer. A previously-transmitted status information memory stores status information on the stencil printer which has been previously transmitted to the computer. Status difference information which represents difference of the updated status information, as transmitted from the stencil printer, from the previously status information stored in the memory is generated and transmitted to the computer on request from the computer.

Claims

1. An interface system which transmits printing data from a computer to a stencil printer and transmits status information on the stencil printer to the computer, said interface system comprising:

a previously-transmitted status information memory for storing status information on the stencil printer which has been previously transmitted to the computer,

an updated status information receiving means for receiving from the stencil printers updated status information on the stencil printer,

a status difference information generation means for generating status difference information which represents a difference of the updated status information from the status information which has been previously transmitted to the computer, and

a status difference information transmitting means for transmitting the status difference information to the computer on request from the computer.

2. An interface system as defined in claim 1 further comprising a means for transmitting the updated status information in place of the status difference information when so requested by the computer.

3. An interface system as defined in claim 1 wherein status difference information generation means further comprises a means for separating the updated status information into fixed status information which represents the fixed status of the stencil printer and variable status information which represents the variable status of the stencil printer, and wherein the status difference information generation means generates the status difference information on the basis of the variable status information.

4. A printing system, comprising:

a computer;

a printer; and

an interface which transmits printing data from the computer to the printer and transmits status information on the printer to the computer, said interface system further comprising;

a previously-transmitted status information memory for storing status information on the stencil printer which has been previously transmitted to the computer,

an updated status information receiving means for receiving, from the printer, updated status information on the printer,

a status difference information generation means for generating status difference information which represents a difference of the updated status information from the status information which has been previously transmitted to the computer, and

a status difference information transmitting means for transmitting the status difference information to the computer on request from the computer.

5. A printing system as defined in claim 4 further comprising a means for transmitting the updated status information in place of the status difference information when so requested by the computer.

6. A printing system as defined in claim 4 wherein status difference information generation means further comprises a means for separating the updated status information into fixed status information which represents the fixed status of the stencil printer and variable status information which represents the variable status of the stencil printer, and wherein the status difference information generation means generates the status difference information on the basis of the variable status information.

7. A printing system as defined in claim 4, wherein said printer is a stencil printer.