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Class Information
Number: 399/31
Name: Electrophotography > Diagnostics > Image forming component
Description: Subject matter wherein a means or method is provided that analyzes an abnormal condition for forming a latent or toner image.

Sub-classes under this class:

Class Number Class Name Patents
399/32 Of exposure system (e.g., lamp, scanning, erase) 85

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8705990 Identification of a first and second adjustment value based on a first and second electrical discharge event Apr. 22, 2014
8687985 Belt drive apparatus for correcting belt position in direction of width Apr. 1, 2014
8676067 Image forming apparatus Mar. 18, 2014
8660442 Method and apparatus for premature consumable replacement detection on printing systems Feb. 25, 2014
8610964 Image forming apparatus having lateral cover with inwardly-dented handgrip Dec. 17, 2013
8611769 Method and system for troubleshooting charging and photoreceptor failure modes associated with a xerographic process Dec. 17, 2013
8594520 Image forming apparatus and method of monitoring image forming apparatus power consumption Nov. 26, 2013
8594521 Image forming apparatus Nov. 26, 2013
8577231 Image forming apparatus and toner sensor status sensing method thereof Nov. 5, 2013
8570549 Image recording apparatus in which a recorded content or output for which the confidentiality is required can be prevented from being visible to another user Oct. 29, 2013
8559834 Variable HFSI counter for the charging subsystem based on GOM (grains of moisture) Oct. 15, 2013
8548340 Image-forming device configured to identify a charger at which an abnormal discharge is occurring Oct. 1, 2013
8521045 Image forming apparatus and image density correction method therefor Aug. 27, 2013
8483584 Image forming apparatus including controller for detecting and reducing abnormal discharges Jul. 9, 2013
8478142 Image forming apparatus and toner sensor status sensing method thereof and determination of agitator abnormality Jul. 2, 2013
8472817 Image forming apparatus Jun. 25, 2013
8467101 Image forming apparatus for adjusting dot size Jun. 18, 2013
8411317 Image reading apparatus and image forming apparatus capable of adjusting the difference between the spectral characteristics Apr. 2, 2013
8391728 Image forming apparatus and voltage applying device comprising a control unit for controlling another control unit when the other control unit is abnormally restarted Mar. 5, 2013
8345296 Image processing apparatus for determining appropriateness of combination of control software, activation method, and storage medium storing control program that causes computer to perform the Jan. 1, 2013
8319202 Color registration strategy for preprinted forms Nov. 27, 2012
8301044 Image forming devices including electrification control units Oct. 30, 2012
8290388 Image forming apparatus having an optical sensor Oct. 16, 2012
8275272 Method and apparatus for printing Sep. 25, 2012
8260163 Image forming apparatus including control for removing electrical discharge product Sep. 4, 2012
8244145 Image forming apparatus including image processing member determined by method of evaluating distribution of adhesion forces of toner thereto Aug. 14, 2012
8238769 Electrostatic disturbance used in a timing routine for HVPS switching in a pressure transfer system involving BTB or BTR Aug. 7, 2012
8208171 Image reading apparatus and method to prevent image erasing due to erroneously line-shaped noise detection Jun. 26, 2012
8180231 Testing transfer nips of printing devices using transfer field uniformity maps May. 15, 2012
8180235 Image forming apparatus May. 15, 2012
8175470 Image forming apparatus having a function of predicting device deterioration based on a plurality of types of operation control information May. 8, 2012
8136904 Apparatus to control color registration and image density Mar. 20, 2012
8126339 Image forming apparatus, intermediate transfer belt drive control method, computer program, and recording medium Feb. 28, 2012
8041235 Image forming apparatus, adjusting method thereof and replacement component thereof Oct. 18, 2011
8023840 Image forming apparatus for detecting the distribution of electrical resistance of a transferring member Sep. 20, 2011
8019241 Image forming apparatus Sep. 13, 2011
8014687 Image forming apparatus that determines when a life of a replacement unit has expired Sep. 6, 2011
8005390 Optimization of reload performance for printer development systems with donor rolls Aug. 23, 2011
7995936 Optical measurement system and method for determining wear level of printer components Aug. 9, 2011
7986889 Abnormality detection in an image forming apparatus Jul. 26, 2011
7962054 Image forming apparatus having a function of predicting device deterioration based on a plurality of types of operation control information Jun. 14, 2011
7916364 Image reading device Mar. 29, 2011
7890002 Image forming apparatus with cooling device and controller permitting image heating during error occurrence Feb. 15, 2011
7869732 Amplitude modulation of illuminators in sensing applications in printing system Jan. 11, 2011
7839526 Reservation of secondary printing devices in a substitute printing system Nov. 23, 2010
7813658 Image forming apparatus Oct. 12, 2010
7777913 Image reading apparatus, facsimile apparatus and copying apparatus Aug. 17, 2010
7769307 Information processing apparatus and information processing method Aug. 3, 2010
7734200 Lifetime management device and image forming system Jun. 8, 2010
7715743 Charger with a probe and controller May. 11, 2010

1 2 3

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