Object oriented printing system

a printing system and object-oriented technology, applied in the field of computer systems, can solve the problems of program returns and user dissatisfaction, wasted time and effort, wasted disk space for holding drivers,

Inactive Publication Date: 2001-07-03
APPLE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The foregoing problems are overcome and the foregoing object is achieved in an illustrative embodiment of the invention in which an object-oriented printing interface includes document grouping or folio objects which,

Problems solved by technology

Therefore, application program developers had to provide larger and larger numbers of printer drivers with each application program, resulting in wasted time and effort and wasted disk space to hold the drivers, only one or two of which were of interest to any particular user.
Unfortunately, if a user purchased an application program and it did not include a printer driver which could control the printer which the user owned, unpredictable operation occurred, resulting in program returns and user dissa

Method used

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Examples

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Embodiment Construction

The invention is preferably practiced in the context of an operating system resident on a personal computer such as the IBM, PS / 2, or Apple, Macintosh, computer. A representative hardware environment is depicted in FIG. 3, which illustrates a typical hardware configuration of a computer 300 in accordance with the subject invention. The computer 300 is controlled by a central processing unit 302, which may be a conventional microprocessor; a number of other units, all interconnected via a system bus 308, are provided to accomplish specific tasks. Although a particular computer may only have some of the units illustrated in FIG. 3 or may have additional components not shown, most computers will include at least the units shown.

Specifically, computer 300 shown in FIG. 3 includes a random access memory (RAM) 306 for temporary storage of information, a read only memory (ROM) 304 for permanent storage of the computer's configuration and basic operating commands and an input / output (I / O) a...

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Abstract

An object-oriented printing system includes objects that provide query, data transfer, and control methods. The inventive object-oriented printing system communicates with the remainder of the operating system by means of a standard interface such as a grafport and printer drivers are provided for each printer type within the operating system. Thus, an application not only need not worry about the particular printer/computer combination with which it is to operate, but also need not have a built in document formatting capability. The printing system includes objects that provide queries for device identification, optimized imaging, and printer status. Other objects are also provided for data transfer to bracket connections prior to sending and receiving information. Still other objects are provided for cancelling a print job, pausing a job, and clearing out a job. Finally, an object is also provided for supporting multiple streams of communication to an imaging task.

Description

COPYRIGHT NOTIFICATIONPortions of this patent application contain materials that are subject to copyright protection. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office.FIELD OF THE INVENTIONThe invention generally relates to improvements in computer systems and, more particularly, to operating system software for printing documents.BACKGROUND OF THE INVENTIONOne of the most important aspects of a modern computer system is the ability to generate a "hard" copy of textual information or graphics which can be manipulated by the computer, visually displayed and stored. In order to accomplish this task, a computer system generally includes a printing device which is electrically connected to the computer system and controlled by it in order to generate a permanent image on a selected medium. Examples of printing devices in common use are dot matrix, ink jet and las...

Claims

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Application Information

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IPC IPC(8): G06F3/12
CPCG06F3/1285G06F3/1206G06F3/1247
Inventor PATEL, JAYENDRA NATUBHAIWATANABE, RYOJIPEEK, MARKHOLT, L. BAYLESDE SILVA, MAHINDA K.
Owner APPLE INC
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