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Class Information
Number: 347/129
Name: Incremental printing of symbolic information > Electric marking apparatus or processes > Electrostatic > Photo scanning
Description: Subject matter wherein at least one writing beam is progressed line by line or point by point (e.g., LEDs) to either charge, or discharge, the medium in imagewise configuration in accordance with the information signal representing the image.

Sub-classes under this class:

Class Number Class Name Patents
347/132 Beam generator driving means 197
347/140 Developer or charger mechanism 213
347/131 Dot density or dot size control (e.g., halftone) 338
347/138 Housing or mounting 199
347/130 Light emitting diodes 267
347/134 Optical elements interposed between record receiver and beam generator 149
347/139 Record receiver or conveyor means therefor 202

Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
8711444 Light-source control device, light-source control method, image reading device, and image forming apparatus Apr. 29, 2014
8576265 Image forming apparatus having a printhead guide and locking mechanism Nov. 5, 2013
8537431 Light source driving device, and image processing device, image reading device and image forming apparatus using the light source driving device Sep. 17, 2013
8531683 Image forming device, image forming method and storage medium Sep. 10, 2013
8494415 Light emitting element array, light emitting device, and image forming apparatus Jul. 23, 2013
8400481 Image forming apparatus Mar. 19, 2013
8345074 Light-emitting device, print head and image forming apparatus Jan. 1, 2013
8330993 Image forming apparatus and image forming system Dec. 11, 2012
8289582 Optical beam scanning apparatus and digital writing apparatus Oct. 16, 2012
8284446 Method, device and computer readable medium for reducing consumable ink in response to image quality degradation such smear Oct. 9, 2012
8233018 Image forming apparatus Jul. 31, 2012
8218202 Multiple image combination via comparative data transform and normalization transform application Jul. 10, 2012
8144179 Image forming apparatus and control method thereof Mar. 27, 2012
8115793 Optical scanning device and image forming apparatus using the same Feb. 14, 2012
8106931 Semiconductor device, print head and image forming apparatus Jan. 31, 2012
8054502 Scanning optical apparatus, image forming apparatus and image clock correction method Nov. 8, 2011
8035669 Image forming apparatus and shutter control method Oct. 11, 2011
8013883 Image forming apparatus Sep. 6, 2011
8013882 Image forming apparatus Sep. 6, 2011
7965397 Systems and methods to measure banding print defects Jun. 21, 2011
7961208 Image forming apparatus, image forming method, and image forming program product Jun. 14, 2011
7952599 Heating element incorporating an array of transistor micro-heaters for digital image marking May. 31, 2011
7932918 Exposure apparatus, image forming apparatus, exposure apparatus manufacturing method and image forming method Apr. 26, 2011
7925179 Image forming apparatus with dust-proof wall Apr. 12, 2011
7889224 Optical path switching device, optical scanning device, and image forming apparatus Feb. 15, 2011
7821678 Image forming apparatus capable of producing a high-precision light beam with a simple structure Oct. 26, 2010
7817176 Light source device, optical scanning device, and image forming apparatus Oct. 19, 2010
7804510 Imaging method for universal printers using an image-on-image process Sep. 28, 2010
7714882 Image forming apparatus and image forming process May. 11, 2010
7684725 Exposure device and image forming apparatus Mar. 23, 2010
7673981 Image formation apparatus Mar. 9, 2010
7652786 Device adapted for adjustment of scan position of light beam Jan. 26, 2010
7595812 Image forming apparatus, printer apparatus, facsimile apparatus, and copying machine Sep. 29, 2009
7586508 Image-forming device with scanner unit Sep. 8, 2009
7574150 Power control apparatus and method of using a power control apparatus in an image forming device Aug. 11, 2009
7559476 Thin MFP (multifunction peripheral) Jul. 14, 2009
7542177 Image reading device and shading correcting method for the same Jun. 2, 2009
7516040 System and method for automated detection of printing defects in an image output device Apr. 7, 2009
7492381 Compensation of MPA polygon once around with exposure modulation Feb. 17, 2009
7483046 Complex image forming apparatus Jan. 27, 2009
7477430 Transparency conveying apparatus and image reading apparatus Jan. 13, 2009
7450144 Image forming apparatus Nov. 11, 2008
7450139 Image forming apparatus, light scanning apparatus and image forming method Nov. 11, 2008
7382994 Background energy density control in an electrophotographic device Jun. 3, 2008
7340482 Preview function in a digital data preservation system Mar. 4, 2008
7333742 Image forming apparatus with switched-potential responsive to attenuation of a remaining voltage Feb. 19, 2008
7324237 Image recording apparatus correcting the image recording position based on the detected result of the recording material Jan. 29, 2008
7286259 Self-scanned light-emitting device array, its driving method, and driving circuit Oct. 23, 2007
7277106 Scanning apparatus having a fluorescent lamp and control method thereof Oct. 2, 2007
7221464 Image recording apparatus and test pattern for evaluating recorded image May. 22, 2007

1 2 3 4 5 6 7

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