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Class Information
Number: 399/9
Name: Electrophotography > Diagnostics
Description: Subject matter wherein a means or method is provided for detecting or analyzing (a) a condition that is outside the normal operating condition or (b) a malfunction or potential malfunction of an electrophotographic device or component thereof.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6088550 |
Image forming apparatus with section-based management function |
Jul. 11, 2000 |
| 6055389 |
Electrophotographic printer determining transfer voltage from voltage readings |
Apr. 25, 2000 |
| 6035149 |
Output apparatus and method in which a suitable analyzer is selected for input information, and the input information is skipped if no analyzer is selected |
Mar. 7, 2000 |
| 6032001 |
Remote diagnosis system and method for an image forming apparatus |
Feb. 29, 2000 |
| 6029029 |
Image forming apparatus |
Feb. 22, 2000 |
| 6029022 |
Image forming apparatus |
Feb. 22, 2000 |
| 6026254 |
Image forming apparatus that can operate during malfunction |
Feb. 15, 2000 |
| 6026380 |
System and methods for tracking copy count information from a plurality of photocopy machines |
Feb. 15, 2000 |
| 6021285 |
Sensorless quality control apparatus used upon malfunction of a quality control sensor and method therefor |
Feb. 1, 2000 |
| 6021284 |
Image forming apparatus, apparatus for supplying image data to image forming apparatus, and method of interfacing two apparatuses |
Feb. 1, 2000 |
| 6016204 |
Actuator performance indicator |
Jan. 18, 2000 |
| 6002489 |
Product catalog having image evaluation chart |
Dec. 14, 1999 |
| 5999757 |
Sheet transportation device |
Dec. 7, 1999 |
| 5995771 |
Image forming apparatus administration system |
Nov. 30, 1999 |
| 5940653 |
Control over image formation based on change in status of image formation means |
Aug. 17, 1999 |
| 5937151 |
Method for setting error print output mode |
Aug. 10, 1999 |
| 5930554 |
Apparatus and method for non-interactive magnetic brush development |
Jul. 27, 1999 |
| 5887216 |
Method and system to diagnos a business office device based on operating parameters set by a user |
Mar. 23, 1999 |
| 5832338 |
Image forming apparatus |
Nov. 3, 1998 |
| 5809371 |
Image forming apparatus displaying job end time |
Sep. 15, 1998 |
| 5809364 |
Instability detection for corona chargers |
Sep. 15, 1998 |
| 5802429 |
Copying machine connected to a host computer for storage and retrieval of help information |
Sep. 1, 1998 |
| 5784676 |
Roller for belt transporting apparatus and image forming apparatus |
Jul. 21, 1998 |
| 5740497 |
Image processing apparatus that can execute interruption job efficiently |
Apr. 14, 1998 |
| 5734480 |
Recording apparatus capable of sorting image recorded sheets |
Mar. 31, 1998 |
| 5732306 |
Printer on-line diagnostics for continuous low frequency motion quality defects |
Mar. 24, 1998 |
| 5715496 |
Remote service system for image forming apparatuses |
Feb. 3, 1998 |
| 5710957 |
Reproduction apparatus transmissivity sensor system for duplex documents |
Jan. 20, 1998 |
| 5708909 |
Equipment management system |
Jan. 13, 1998 |
| 5694528 |
Apparatus and method for diagnosing printing machine operation with facsimile transmitted dialog screens |
Dec. 2, 1997 |
| 5673106 |
Printing system with self-monitoring and adjustment |
Sep. 30, 1997 |
| 5666585 |
Maintenance supervising system for an image-reproducing system |
Sep. 9, 1997 |
| 5666194 |
Apparatus for detecting marking material |
Sep. 9, 1997 |
| 5666584 |
Information output apparatus and method utilizing multi-function mode indicator |
Sep. 9, 1997 |
| 5652803 |
Special-document discriminating apparatus and managing system for image forming apparatus having a special-document discriminating function |
Jul. 29, 1997 |
| 5646717 |
Image forming apparatus having charging member |
Jul. 8, 1997 |
| 5646719 |
Cleaner-brush having a fiberless segment |
Jul. 8, 1997 |
| 5646740 |
Partial or untimed production trees to specify diagnostics operations requiring multiple module cooperation |
Jul. 8, 1997 |
| 5640467 |
Image forming apparatus which monitors hardware errors of a controller of a copying-inhibited function |
Jun. 17, 1997 |
| 5627653 |
Print control device for determining a rotating speed of a print drum of an electrophotographic printer according to a data transmission speed from a host system |
May. 6, 1997 |
| 5613047 |
Apparatus having self-repairing function and method of self repairing the same |
Mar. 18, 1997 |
| 5606399 |
Device for correcting an applied voltage in an image forming apparatus |
Feb. 25, 1997 |
| 5604567 |
Printer color and gray balance adjustment system |
Feb. 18, 1997 |
| 5592298 |
Apparatus and method for detecting digitized image area coverage by counting pixels |
Jan. 7, 1997 |
| 5574527 |
Multiple use of a sensor in a printing machine |
Nov. 12, 1996 |
| 5570165 |
Method of controlling toner density detection |
Oct. 29, 1996 |
| 5557370 |
Control device for a feed roller |
Sep. 17, 1996 |
| 5557373 |
Cleaning system for charging drum of an image forming apparatus |
Sep. 17, 1996 |
| 5557412 |
Image forming method and apparatus for counterfeit protection using image synthesis accounting for forming conditions |
Sep. 17, 1996 |
| 5548377 |
Method of controlling an image forming apparatus when an emergency stop signal is generated |
Aug. 20, 1996 |
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