Print management system and print management method

• US 7,706,027 B2
• Filed: 03/31/2004
• Issued: 04/27/2010
• Est. Priority Date: 04/02/2003
• Status: Expired due to Fees

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: Takabayashi, Nobuhisa, Shimada, Mikiya, Okabe, Hiroki
• Primary Examiner(s): Haskins; Twyler L
• Assistant Examiner(s): Beckley; Jonathan R
• Application Number:
  US10/816,249
• Publication Number:
  US 20040257612A1
• Time in Patent Office: 2,218 Days
• Field of Search: 358/518, 358/519, 358/1.9, 358/1.15, 358/448, 358/1.13, 358/1.8, 358/1.12, 358/1.2, 358/1.14, 358/1.16, 382/100, 382/167, 399/26, 348/195, 709/226
• US Class Current: 358/462
• CPC Class Codes: G06F 3/1208 resulting in improved quality of the output result, e.g. print layout, colours, workflows, print preview
• CPC Class Codes: G06F 3/1211 Improving printing performance
• CPC Class Codes: G06F 3/124 Parallel printing or parallel ripping
• CPC Class Codes: G06F 3/1241 Dividing a job according to job requirements, e.g. black/white and colour pages, covers and body of books, tabs
• CPC Class Codes: G06F 3/1288 in client-server-printer device configuration
• CPC Class Codes: G06F 9/4843 by program, e.g. task dispatcher, supervisor, operating system

Abstract

Each print job received from a client computer 30 is divided into minimum printing units as divisional jobs, which are stored in a job folder 23b. When either of an upper spooler 23d and a lower spooler 23e has any vacancy for next allocation, one divisional job is allocated to a printer corresponding to the spooler having the vacancy. The name of the printer that has received allocation of the divisional job is written into the job folder 23b. When any allocated divisional job having an identical image file name and an identical customer ID with those of a current object divisional job is present in the job folder 23b, the current object divisional job is allocated to the printer, to which the allocated divisional job has been allocated. This arrangement allocates multiple divisional jobs for printing an identical image demanded from an identical customer to the same printer, thus ensuring substantially equal quality of resulting printed images.

Claims

1. A print management system that allocates each print demand to one of multiple printing devices, which print an image on a medium, said print management system comprising:

a plurality of printing devices;

a print demand acceptance module that receives a plurality of print demands, each print demand includes a printing request of an image, wherein each said printing request included in each print demand has image identification information for identifying the image to be printed and has customer identification information for identifying a customer who demands printing of the image, said image identification information includes at least one of a file name of the image, identification information for identifying a digital camera used to record the image, date of recording the image with the digital camera, and a data size of the image;

a print allocation module that receives print demands from said print demand acceptance module,

said print allocation module, in response to a received print demand, which is a second print demand including a printing request of an image, said image is the same image as a first image of a first printing request of a first print demand, wherein the first image has previously been allocated to a given printing device of the plurality of printing devices, retrieves a matching print demand among a plurality of print demands in an allocated state or a printed state, said matching print demand is, or identical to, the first print demand, wherein the matching print demand includes an identical image with the image of the printing request of the received print demand,

said print allocation module determines a state of a spooler of a printing device, to which the matching print demand has been allocated,

said print allocation module allocates the received print demand to the printing device when the spooler has any vacancy, while, in a case when the spooler has no vacancy, waits to allocate the received print demand to the printing device after a vacancy occurs in the spooler,

said print allocation module sets the status of the received and allocated print demand to the allocated state;

an information storage module that stores image identification information and customer identification information of printing requests when a printing request to print an image has been allocated so to identify the image and printing device to which image of the printing request of a print demand has been allocated; and

a printing request number detection module that detects a number of printing requests allocated to each of the plurality of printing devices,

wherein each of the plurality of printing devices accepts allocation of printing requests from said print allocation module to a preset number and successively executes the preset number of printing requests,

said print allocation module allocates the received print demand to the printing device when printing request of the received print demand includes a piece of image identification which is identical to a stored image identification of the matching printing demand and a piece of customer identification which is identical to a stored customer identification of the matching print demand,

said print allocation module allocates the received print demand on the condition that any of the numbers of printing requests to each of the plurality of printing devices is less than the preset number.

2. A print management system in accordance with claim 1, wherein said print allocation module, when there are plural printing devices having the number of allocated printing requests less than the preset number, allocates a printing request to the printing device having a less number of allocated printing requests.

3. A print management method that allocates each print demand to one of multiple printing devices, which print an image on a medium, said print management method comprising the steps of:

(a) receiving a plurality of print demands, each print demand includes a printing request of an image, wherein each said printing request included in each print demand has image identification information for identifying the image to be printed and has customer identification information for identifying a customer who demands printing of the image, said image identification information includes at least one of a file name of the image, identification information for identifying a digital camera used to record the image, date of recording the image with the digital camera, and a data size of the image;

(b) in response to a received print demand, which is a second print demand including a printing request of an image, said image is the same image as a first image of a first printing request of a first print demand, wherein the first image has previously been allocated to a given printing device of a plurality of printing devices, retrieving a matching print demand among a plurality of print demands in an allocated state or a printed state, said matching print demand is, or identical to, the first print demand, wherein the matching print demand includes an identical image with the image of the printing request of the received print demand,

(c) determining a state of a spooler of a printing device, to which the matching print demand has been allocated,

(d) allocating the received print demand to the printing device when the spooler has any vacancy, while, in a case when the spooler has no vacancy, waits to allocate the received print demand to the printing device after a vacancy occurs in the spooler,

(e) setting the status of the received and allocated print demand to the allocated state;

(f) storing image identification information and customer identification information of printing requests when a printing request to print an image has been allocated so to identify the image and printing device to which image of the printing request of a print demand has been allocated; and

(g) detecting a number of printing requests allocated to each of the plurality of printing devices,

wherein each of the plurality of printing devices accepts allocation of printing requests from said print allocation module to a preset number and successively executes the preset number of printing requests,

said step (d) allocates the received print demand to the printing device when printing request of the received print demand includes a piece of image identification which is identical to a stored image identification of the matching printing demand and a piece of customer identification which is identical to a stored customer identification of the matching print demand,

said step (d) allocates the received print demand on the condition that any of the numbers of printing requests to each of the plurality of printing devices is less than the preset number.