Distributed enterprise print controller

• US 5,559,933 A
• Filed: 04/22/1994
• Issued: 09/24/1996
• Est. Priority Date: 04/22/1994
• Status: Expired due to Term

• Current Assignee: Unisys Corporation
• Original Assignee: Unisys Corporation
• Inventors: Boswell, R. Stephen
• Primary Examiner(s): Powell, Mark R.
• Assistant Examiner(s): Popovici, Dov
• Application Number:
  US08/231,547
• Time in Patent Office: 886 Days
• Field of Search: 395/101, 395/112, 395/114, 395/163, 395/111, 395/115, 395/116, 395/117, 395/164, 395/165, 395/166, 395/800, 358/402, 358/403, 358/407, 358/296, 358/404, 358/444, 355/200, 355/202, 355/204, 400/62, 400/70, 400/71, 347/142
• US Class Current: 358/1.15
• CPC Class Codes: G06F 3/1203 Improving or facilitating administration, e.g. print management
• CPC Class Codes: G06F 3/1204 resulting in reduced user or operator actions, e.g. presetting, automatic actions, using hardware token storing data
• CPC Class Codes: G06F 3/126 Job scheduling, e.g. queuing, determine appropriate device
• CPC Class Codes: G06F 3/1285 Remote printer device, e.g. being remote from client or server
• CPC Class Codes: H04L 67/30 Profiles
• CPC Class Codes: H04L 67/51 Discovery or management thereof, e.g. service location protocol [SLP] or web services
• CPC Class Codes: H04L 67/59 Providing operational support to end devices by off-loading in the network or by emulation, e.g. when they are unavailable
• CPC Class Codes: H04L 67/75 Indicating network or usage conditions on the user display
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

A system and method for transferring and printing files originating on mainframe computer systems, workstations, or personal computers connected within a heterogeneous computer network is disclosed. The printer controller coordinates the distribution of print files across multiple computer systems to attached printers for printing. In response to incoming files received from another computer system within the network, the system utilizes file mask attributes to automatically generate transfer requests and print requests. In response to user inputs through a graphical user interface, the system updates various file databases, print attribute and transfer attribute libraries, and system configurations before generating a transfer or print request. Support for multiple page description languages and multiple printers is provided.

Claims

1. A distributed printing control system for transferring files between computer systems connected by a computer network, each of the computer systems having a memory, and printing files on printers coupled to the computer systems comprising:

file database means for storing a file to and retrieving said file from the memory, said file containing a file mask specifying file identification, transfer, and printing parameters, and for storing and retrieving a predetermined set of file masks;

file mask processing means coupled to said file database means for comparing said file mask of said file against said predetermined set of file masks stored in said file database means, for creating a transfer job to transfer said file or a print job to print said file or both said transfer job and said print job according to said file mask when said file mask matches a file mask in said predetermined set of file masks, and for directing said file database means to store said file;

file transfer means coupled to said file database means and said file mask processing means for executing said transfer job to transfer said file according to said file mask to another computer system coupled to the computer network; and

file print means coupled to said file database means and said file mask processing means for executing said print job to print said file according to said file mask on a computer printer interfaced to a computer system coupled to the computer network.

2. The distributed printing control system as in claim 1, wherein said file transfer means automatically transfers said file to a selected computer system according to said file mask without user intervention.

3. The distributed printing control system as in claim 1, wherein said file print means automatically prints said file on a selected computer printer according to said file mask without user intervention.

4. The distributed printing control system as in claim 1, wherein said file transfer means transfers and said file print means prints files containing POSTSCRIPT print commands.

5. The distributed printing control system as in claim 1, wherein said file transfer means transfers and said file print means prints files containing PCL print commands.

6. The distributed printing control system as in claim 1, wherein said file mask comprises file attributes that define characteristics of said file, transfer attributes that define how said file is to be transferred to another computer system, print attributes that define how said file is to be printed on a printer connected to the computer network, and destination printer identification.

7. The distributed printing control system as in claim 6, wherein said file database means comprises:

file mask means for storing and retrieving file masks;

transfer attribute means coupled to said file mask means for storing and retrieving sets of said transfer attributes specifying how, when, and where said file is to be transferred; and

print attribute means coupled to said file mask means for storing and retrieving sets of said print attributes specifying how, when, and where said file is to be printed.

8. The distributed printing control system as in claim 1, wherein said file database means further comprises system configuration means for storing and retrieving data signals indicative of the operational parameters of said system.

9. The distributed printing control system as in claim 8, wherein said file database means further comprises communications configuration means coupled to said transfer attribute means for storing and retrieving the communications paths used to send and receive said file.

10. The distributed printing control system as in claim 9, wherein said file database means further comprises file group means coupled to said file mask means for grouping files according to said file mask.

11. The distributed printing control system as in claim 10, wherein said file database means further comprises file storage means coupled to said file group means for storing and retrieving said file.

12. The distributed printing control system as in claim 11, wherein said file database means further comprises physical printer configuration means coupled to said file mask means for storing and retrieving a list of printers connected to computer systems within the computer network.

13. The distributed printing control system as in claim 12, wherein said file database means further comprises logical printer configuration means coupled to said file mask means for storing, searching, and retrieving a mapping of logical printers to printers.

14. The distributed printing control system as in claim 13, wherein said file database means further comprises header and trailer page configuration means coupled to said print attribute means for specifying the format of header pages and trailer pages to be printed when said file is printed on a printer.

15. The distributed printing control system as in claim 14, wherein said file database further comprises coded character set means coupled to said print attribute means for specifying a set of actions to be performed during the printing of said file when predetermined control characters are present in said file.

16. The distributed printing control system as in claim 15, wherein said file database further comprises translate table means coupled to said coded character set means and said physical printer configuration means for translating character codes contained in said file into different character codes.

17. The distributed printing control system as in claim 1, further comprising:

file input means coupled to said file mask processing means for accepting a file sent by another computer system within the computer network, whereby said file input means interfaces with a computer system in the computer network by using a peer-to-peer communications protocol.

18. The distributed printing control system as in claim 17, wherein said peer-to-peer communications protocol is transmission control protocol/internet protocol.

19. The distributed printing control system as in claim 17, further comprising:

user interface means for accepting requests from a user to control the transferring and printing of said file by modifying said file mask; and

user request processing means coupled to said user interface means, said file database means, said file transfer means, and said file print means for directing said file database means for selectively updating said file mask of said file stored in said file database means.

20. A computer-based distributed printing control system for transferring files between computer systems, each computer system having a memory, connected by a heterogeneous computer network and for printing the files on printers supporting different page description languages coupled to the computer systems comprising:

a system database for storing and retrieving files between a computer system'"'"'s memory, each of said files containing a file mask specifying file identification, transfer, and printing parameters;

file input means for accepting a file sent by another computer system within the computer network, whereby said file input means interfaces with a computer system in the heterogeneous computer network by using a peer-to-peer protocol;

user interface means for accepting requests from a user to control the transferring and printing of said file by modifying said file mask;

user request processing means coupled to said user interface means and said system database for directing said system database to selectively update said file mask of said file stored in said system database;

file mask processing means coupled to said file input means and said system database for comparing said file mask contained in said file received from said file input means against a predetermined set of file masks stored in said system database, for creating a transfer job to transfer said file or a print job to print said file or both said transfer job and said print job according to said file mask when said file mask matches one in said predetermined set of file masks, and for directing said system database to store said file;

file transfer means coupled to said system database, said file mask processing means, and said user request processing means for executing said transfer job to automatically transfer said file according to said file mask to another computer system coupled to the computer network; and

file print means coupled to said system database, said file mask processing means, and said user request processing means for executing print job to automatically print said file according to said file mask on a computer printer interfaced to a computer system coupled to the computer network.

21. The distributed printing control system as in claim 20, wherein said file input means interfaces with computer systems in the computer network by using a peer-to-peer transmission control protocol/internet protocol.

22. The distributed printing control system as in claim 20, wherein said file transfer means transfers and said file print means prints files containing POSTSCRIPT print commands.

23. The distributed printing control system as in claim 20, wherein said file transfer means transfers and said file print means prints files containing PCL print commands.

24. The distributed printing control system as in claim 20, wherein said file mask comprises file attributes that define characteristics of said file, transfer attributes that define how said file is to be transferred to another computer system, print attributes that define how said file is to be printed on a printer connected to the computer network, and destination printer identification.

25. The distributed printing control system as in claim 24, wherein said system database comprises:

a file mask library for storing file masks;

a transfer attribute library coupled to said file mask library for storing sets of said transfer attributes specifying how, when, and where said file is to be transferred; and

a print attribute library coupled to said file mask library for storing sets of said print attributes specifying how, when, and where said file is to be printed.

26. The distributed printing control system as in claim 25, wherein said system database further comprises a system configuration for storing and retrieving data signals indicative of the operational parameters of said system.

27. The distributed printing control system as in claim 26, wherein said system database further comprises a communications configuration coupled to said transfer attribute library, said communications configuration specifying the possible communications paths used to send and receive files.

28. The distributed printing control system as in claim 27, wherein said system database further comprises a file group library coupled to said file mask library, each of said file group library entries specifying groups of files according to said file mask.

29. The distributed printing control system as in claim 28, wherein said system database further comprises a file database coupled to said file group library, said file database storing files.

30. The distributed printing control system as in claim 29, wherein said system database further comprises a physical printer configuration coupled to said file mask library, said physical printer configuration including a list of printers connected to computer systems within the computer network.

31. The distributed printing control system as in claim 30, wherein said system database further comprises a logical printer configuration coupled to said file mask library, each of said logical printer configuration entries specifying a logical-to-physical mapping of printers.

32. The distributed printing control system as in claim 31, wherein said system database further comprises a header and trailer page configuration coupled to said print attribute library, each of said header and trailer page configuration entries specifying the format of header pages and trailer pages to be printed when said file is printed on a printer.

33. The distributed printing control system as in claim 32, wherein said system database further comprises a coded character set library coupled to said print attribute library, each of said coded character set library entries specifying a set of actions to be performed during the printing of said file when predetermined control characters are present in said file.

34. The distributed printing control system as in claim 33, wherein said system database further comprises a translate table library coupled to said coded character set library and said physical printer configuration, each of said translate table library entries being used to translate character codes contained in said file into different character codes.

35. A computer-implemented process for transferring files between computer systems connected by a computer network and printing files on computer printers coupled to the computer systems, each of the files having an embedded file mask specifying file identification information, transfer attributes, and print attributes, each computer system having a file mask library for storing file masks, comprising the steps of:

(a) comparing a file mask embedded within a file stored on a computer system to the file masks in the computer system'"'"'s file mask library;

(b) creating a print job for selectively printing said file on a printer when said file mask contained in said file contains print attributes;

(c) creating a transfer job for selectively transferring said file to another computer system in the computer network when said file mask embedded within said file contains transfer attributes; and

(d) executing said print job, said transfer job, or both said print job and said transfer job according to said file mask.

36. A computer-implemented process for transferring files between computer systems connected by a computer network and printing files on printers coupled to the computer systems, each of the files having an embedded file mask specifying file identification information, transfer attributes, and print attributes, each computer system having a file mask library for storing file masks, comprising the steps of:

(a) storing a file received by a computer system from another computer system over a computer network;

(b) comparing a file mask embedded within said file to the file masks in the file mask library;

(c) adding said file to a file group specified by an entry in said file mask library when said entry matches said file mask embedded within said file;

(d) creating a print job for selectively printing said file on a computer printer when said file mask embedded within said file contains print attributes;

(e) creating a transfer job for selectively transferring said file to another computer system in the computer network when said file mask embedded within said file contains transfer attributes; and

(f) executing said print job, said transfer job, or both said print job and said transfer job according to said file mask.

37. A computer-implemented process as in claim 36, further comprising the step of:

(g) modifying said print job, said transfer job, or both said print job and said transfer job according to a request received from a user.

38. A computer-implemented process as in claim 37, further comprising the step of:

(h) deleting said file from said computer system.

39. A computer-implemented process for transferring files between computer systems connected by a computer network and printing files on computer printers coupled to the computer systems, each of the files having an embedded file mask specifying file identification information, transfer attributes, and print attributes, each computer system having a file mask library for storing file masks, comprising the steps of:

(a) storing a file received by a computer system from another computer system over a computer network into a file database;

(b) comparing a file mask embedded within said received file to the file masks in the file mask library;

(c) adding said file to a file group specified by an entry in said file mask library when said entry matches said file mask embedded within said file;

(d) creating a print job with printing attributes including an assigned priority, for selectively printing said file on a computer printer when said file mask contains print attributes;

(e) creating a transfer job with transfer attributes including an assigned priority for selectively transferring said file to said destination computer system in the computer network when said file mask embedded within said file contains transfer attributes;

(f) receiving a request from a user to modify said print job, said attribute job, or both said print job and said transfer job;

(g) modifying said print job, said transfer job, or both said print job and said transfer job according to the request received from the user;

(h) executing said print job, said transfer job, or both said print job and said transfer job according to said assigned priorities; and

(i) deleting said file from said computer system.

40. A computer-implemented process as in claim 39, wherein said creating a print job step includes defining printing characteristics for printing said file and a printer identifier of said printer on which said file is to be printed.

41. A computer-implemented process as in claim 40, wherein said creating a transfer job step includes defining a communications path for transferring said file, identifying said computer system to receive said file, and defining a time range when said file is to be transferred.

42. A computer-implemented process for transferring files between computer systems connected by a computer network and printing files on computer printers coupled to the computer systems, each of the computer systems having an attached computer display, each of the files having an embedded file mask specifying file identification information, transfer attributes, and print attributes, comprising the steps of:

(a) accepting a file by a computer system from another computer system in the computer network;

(b) assigning said file to a file group when a file mask embedded in said file matches the file mask of said file group;

(c) storing said file in a file database on said computer system with other files in said file group;

(d) creating a print job with printing attributes including an assigned priority, printing characteristics for printing said file, and a printer identifier of said computer printer on which said file is to be printed, for selectively printing said file when said file mask contains print attributes;

(e) creating a transfer job with transfer attributes including an assigned priority, a communications path for transferring said file, identification of said destination computer system to receive said file, and a time range when said file is to be transferred, for selectively transferring said file to said destination computer system in the computer network when said file mask embedded within said file contains transfer attributes;

(f) updating the computer display coupled to said computer system to reflect the change in printing system status as a result of the creation of a print job, a transfer job, or both a print job and a transfer job;

(g) accepting a request to modify a print job, a transfer job, or both a print job and a transfer job from a user;

(h) modifying said print job, said transfer job, or both said print job and said transfer job according to the request received from the user;

(i) executing said print job, said transfer job, or both said print job and said transfer job according to said assigned priorities; and

(j) deleting said file from said computer system.