Remote diagnosis of copy quality defects

• US 5,365,310 A
• Filed: 07/30/1993
• Issued: 11/15/1994
• Est. Priority Date: 07/30/1993
• Status: Expired due to Fees

• Current Assignee: Xerox Corporation (Xerox Holdings Corp.)
• Original Assignee: Xerox Corporation (Xerox Holdings Corp.)
• Inventors: Rubens, John M., Lo Biondo, Martin F., Wegeng, Donald L., Jenkins, Everett W.
• Primary Examiner(s): Grimley, A. T.
• Assistant Examiner(s): Brase, Sandra L.
• Application Number:
  US08/099,385
• Time in Patent Office: 473 Days
• Field of Search: 355/200, 355/202, 355/203, 355/204, 355/205, 355/206, 355/207, 355/208, 355/209, 364/138, 364/550, 371/15.1, 371/67.1
• US Class Current: 399/8
• CPC Class Codes: G03G 15/5079 for maintenance
• CPC Class Codes: G03G 15/55 Self-diagnostics; Malfunction or lifetime display
• CPC Class Codes: H04N 1/00002 Diagnosis, testing or measuring; Detecting, analysing or monitoring not otherwise provided for error detection, error correction or monitoring in digital computers or digital computer components G06F11/00
• CPC Class Codes: H04N 1/00018 Scanning arrangements
• CPC Class Codes: H04N 1/00029 Diagnosis, i.e. identifying a problem by comparison with a normal state
• CPC Class Codes: H04N 1/00061 using a remote apparatus H04N1/00066 takes precedence
• CPC Class Codes: H04N 1/00074 Indicating or reporting details of user-machine interface H04N1/0035
• CPC Class Codes: H04N 1/00344 with a management, maintenance, service or repair apparatus monitoring H04N1/00002
• CPC Class Codes: H04N 1/32 Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device H04N1/38, H04N1/387 take precedence
• CPC Class Codes: H04N 1/32609 Fault detection or counter-measures, e.g. original mis-positioned, shortage of paper

Abstract

A method for remotely diagnosing copy quality defects. The image scanner on a system reprographics machine, or other digital copier, is used to scan a document that has a copy quality defect. Information about the problem, which may include the scanned image itself as well as machine related parameters resident in non-volatile memory, is then transmitted to a host computer that can diagnose the problem. The diagnosis and instructions for correcting the defect are thereupon given either to a service representative or transmitted back to the user, who can then correct the problem. In some instances, the problem can be fixed remotely by adjusting non-volatile memory values using the Remote Interactive Communications (RIC) network or other similar communications network between the host computer and the defective system reprographic machine.

Claims

1. A process for remotely diagnosing non-repeatable copy quality defects in printed pages of a print job being processed by an electronic reprographic system, the reprographic system includes a printer for producing prints from the pages in response to job program instructions, and a user interface with display screen and at least one command input device for inputting the job program instructions for the print job, comprising the steps of:

printing the print job;

determining a non-repeatable copy quality defect is present;

loading the defective print job pages into a system document handler for scanning;

scanning the defective print job pages thereby creating digitized page images of the defective pages;

transferring the digitized page images containing the copy quality defect along with reprographic system identification and physical data to a remote diagnostic computer, the remote diagnostic computer having expert system software stored in a memory thereof for analyzing the copy quality defect;

analyzing the digitized page images using the remote diagnostic computer;

receiving from the remote diagnostic computer at least one of a status message, notice that a service technician is responding and a list of corrective procedures, the at least one status message, notice and list being displayed on the user interface display screen; and

implementing the list of corrective procedures thereby correcting the copy quality defect.

2. The process according to claim 1, wherein the transferring step further comprises:

transferring said data to the remote diagnostic computer by using at least one of a network data-link, a telephone modem data-link and a floppy disk.

3. The process according to claim 2, wherein the remote diagnostic computer is a host main frame computer, and the process further comprises locating the host main frame computer at a service facility.

4. The process according to claim 2, further comprising providing the remote diagnostic computer as a portable computer.

5. The process according to claim 1, wherein the implementing step is performed automatically by the diagnostic computer which inputs corrective procedures directly into a non-volatile memory of the reprographic system.

6. The process according to claim 1, wherein the transferring and analyzing steps further comprise:

transferring scanned images of both the defective pages and originals of the defective pages; and

analyzing both scanned images to determine differences between the scanned images thereby identifying the copy quality defect using said remote diagnostic computer.

7. The process according to claim 6, wherein said analyzing step further comprises:

displaying remotely the transmitted page image data for analysis by a technician.

8. The process according to claim 1, wherein the transferring and analyzing steps further comprise:

transferring only the differences between scanned images of both defective pages and originals of the defective pages; and

analyzing the differences to identify the copy quality defect using said remote diagnostic computer.

9. A process for remotely diagnosing repeatable copy quality defects in printed pages of a print job being processed by an electronic reprographic system, the reprographic system including a printer for producing prints from the pages in response to job program instructions, and a user interface with display screen and at least one command input device for inputting the job program instructions for the print job, comprising the steps of:

printing the print job;

determining a repeatable copy quality defect is present;

instructing the reprographic system, by job program instruction, to print a test pattern stored in a memory of the reprographic system, the printed test pattern now exhibits the copy quality defect;

loading the printed test pattern into a system document handler for scanning;

scanning the defective printed test pattern thereby creating a digitized image of the printed test pattern;

transferring the digitized image of the printed test pattern along with reprographic system identification and physical data to a remote diagnostic computer, the remote diagnostic computer having expert system software stored in a first memory thereof for analyzing the copy quality defect;

analyzing the digitized image of the printed test pattern containing the copy quality defect using the remote diagnostic computer;

receiving from the remote diagnostic computer at least one of a status message, notice that a service technician is responding and a list of corrective procedures, the at least one status message, notice and list being displayed on the user interface display screen; and

implementing the list of corrective procedures thereby correcting the copy quality defect.

10. The process according to claim 9, wherein the transferring step further comprises:

transferring the data to the remote diagnostic computer by using at least one of a network data-link, a telephone modem data-link and a floppy disk.

11. The process according to claim 10, wherein the remote diagnostic computer is a host main frame computer, and the process further comprises locating the host main frame computer at a service facility.

12. The process according to claim 10, further comprising providing the remote diagnostic computer as a portable computer.

13. The process according to claim 9, wherein the implementing step is performed automatically by the diagnostic computer which inputs corrective procedures directly into a non-volatile memory of the reprographic system.

14. The process according to claim 9, wherein the analyzing step further comprises:

comparing the transmitted digitized image of the printed test pattern with an original of the digitized test pattern stored in a second memory of the diagnostic computer and accessed using the system identification and physical data previously transferred;

15. The process according to claim 14, wherein the analyzing step further comprises:

displaying remotely the transmitted digitized image of the printed test pattern for analysis by a technician.

16. The process according to claim 9, wherein the transferring and analyzing steps further comprise:

transferring only the differences between scanned images of both defective pages and originals of the defective pages; and

analyzing the differences to identify the copy quality defect using said remote diagnostic computer.