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US6839524B2 Expired / Lapsed US ⏱️ 0.0 years remaining

Image forming apparatus, normal image forming unit, special image forming unit and image forming method

Assignee: Fujifilm Business Innovation Corp
•
Filing: 2002-09-17
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Granted: 2005-01-04
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Expires: 2022-09-17
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Abstract

Abstract An image forming apparatus can form an image of a high-precision security information for anti-reproduction. A photosensitive material-coated area in a recording paper is exposed with an exposure unit to form an image of a high-precision security information. Since the image of the security information is thus formed by exposing the photosensitive material, it can be formed as an image incapable of reproduction.

Inventors

  • 👤 Shoji Yamaguchi
  • 👤 Mario Fuse
  • 👤 Hideki Fukunaga
  • 👤 Tetsuya Kimura

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 13:41
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/32; H04N1/32101; H04N1/32144; G; G03; G03G; G03G21/00; G03G21/04; G03G21/043; G03G2215/00; G03G2215/00362; G03G2215/00789; G03G2215/00797; G03G2215/00801; H04N2201/00; H04N2201/32; H04N2201/3201; H04N2201/3271

Claims Analysis

Total Claims: 23
Claim 1
Independent Claim 75 words
An image forming apparatus comprising: a normal image forming part that forms a normal image on a recording medium; and a special image forming part that forms a special image on the recording medium using a photosensitive material, wherein the special image forming part comprises a coating device that coats the recording medium with the photosensitive material, and an exposure unit that exposes the photosensitive material to form the special image on the recording medium.
Claim 2
Dependent Claim 75 words
An image forming apparatus comprising: a normal image forming part that forms a normal image on a recording medium; and a special image forming part that forms a special image on the recording medium using a photosensitive material, wherein the special image forming part comprises a coating device that coats the recording medium with the photosensitive material, and an exposure unit that exposes the photosensitive material to form the special image on the recording medium.
Claim 3
Dependent Claim 61 words
The image forming apparatus as claimed in claim 1 , wherein the special image forming part comprises a transfer part, a coating device that coats a transfer member with the photosensitive material, and an exposure unit that exposes the photosensitive material to form the special image on the transfer member, the transfer part transferring the special image onto the recording medium.
Claim 4
Dependent Claim 19 words
The image forming apparatus as claimed in claim 1 , wherein the coating device adopts an inkjet printing system.
Claim 5
Dependent Claim 19 words
The image forming apparatus as claimed in claim 1 , wherein the exposure unit comprises a semiconductor laser array.
Claim 6
Dependent Claim 26 words
The image forming apparatus as claimed in claim 1 , wherein a resolution of the special image is higher than a resolution of the normal image.
Claim 7
Dependent Claim 30 words
The image forming apparatus as claimed in claim 1 , wherein a resolution of the special image is at least twice as high as a resolution of the normal image.
Claim 8
Dependent Claim 22 words
The image forming apparatus as claimed in claim 1 , wherein a resolution of the special image is at least 1,200 dpi.
Claim 9
Dependent Claim 25 words
The image forming apparatus as claimed in claim 1 , wherein a resolution of the special image, a dot diameter is 25 μm or less.
Claim 10
Dependent Claim 17 words
The image forming apparatus as claimed in claim 1 , wherein the special image includes security information.
Claim 11
Dependent Claim 36 words
The image forming apparatus as claimed in claim 9 , wherein the security information comprises any of a very small letter, a latent image, fine lines, an optical pattern and a code or a combination thereof.
Claim 12
Dependent Claim 37 words
The image forming apparatus as claimed in claim 9 , wherein the security information comprises any of information about a recording time, information about a recording device or information about a recording person or a combination thereof.
Claim 13
Dependent Claim 41 words
The image forming apparatus as claimed in claim 1 , wherein the normal image forming parts adopts any of an inkjet printing system, an electrophotographic printing system, an image transfer printing system and a sublimation printing system or a combination thereof.
Claim 14
Dependent Claim 46 words
The image forming apparatus as claimed in claim 1 , comprising: a normal image forming unit having the normal image forming part; and a special image forming unit having the special image forming part which is attached to, or detached from, the normal image forming unit.
Claim 15
Dependent Claim 20 words
The image forming apparatus as claimed in claim 1 , wherein the coating device comprises a photosensitive material injection head.
Claim 16
Dependent Claim 60 words
The image forming apparatus as claimed in claim 1 , wherein the coating device comprises: a rotary drum; a supply device that coats a predetermined position of the rotary drum with a photosensitive material; and a transfer roller that transfers the photosensitive material from the rotary drum to the recording medium by pressing the recording medium against the rotary drum.
Claim 17
Dependent Claim 51 words
The image forming apparatus as claimed in claim 15 , wherein the exposure unit is mounted relative to the rotary drum such that the photosensitive material formed on the rotary drum is exposed to a light source from the exposure unit to form high precision security information on the rotary drum.
Claim 18
Dependent Claim 79 words
The image forming apparatus as claimed in claim 16 , further including: an image receiving material forming portion located upstream of the coating device in a recording medium transporting direction to coat a predetermined position of recording medium with an image receiving material; and wherein the coating device transfers the high precision security information from the rotary drum onto the recording medium coated with the image receiving material, and the photosensitive material removing device removes the photosensitive material thereafter.
Claim 19
Dependent Claim 47 words
The image forming apparatus as claimed in claim 15 , comprising: a seal adhesion device located upstream of the coating device, wherein the seal adhesion device adheres a seal to the recording medium and the coating device transfers the photosensitive material to the seal from the drum.
Claim 20
Dependent Claim 38 words
The image forming apparatus as claimed in claim 1 wherein the coating device comprises a hologram adhesion device wherein the hologram adhesion device adheres a hologram to the recording medium with the photosensitive material disposed on the hologram.
Claim 21
Dependent Claim 72 words
An image forming method comprising: receiving a normal image and a special image transmitted through an electric circuit; forming the normal image on a recording medium, the normal image having a predetermined first resolution; coating a portion of the recording medium with a photosensitive material; and exposing the photosensitive material to a light source to form the special image, the special image having a predetermined second resolution higher than the first resolution.
Claim 22
Dependent Claim 72 words
An image forming method comprising: receiving a normal image and a special image transmitted through an electric circuit; forming the normal image on a recording medium, the normal image having a predetermined first resolution; coating a portion of the recording medium with a photosensitive material; and exposing the photosensitive material to a light source to form the special image, the special image having a predetermined second resolution higher than the first resolution.
Claim 23
Dependent Claim 21 words
The image forming method of claim 20 wherein the second resolution is at least twice as high as the first resolution.

References Cited (Backward Citations)

US4978593A Cited
US5321467A Cited
US5373350A Cited
US6099108A Cited
JP2000211244A Cited
JP2000265077A Cited
JP2001270098A Cited
US6385405B1 Cited
US6618563B2 Cited
US6582039B2 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2008-01-04 2008-07-05 2009-01-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2012-01-04 2012-07-05 2013-01-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2016-01-04 2016-07-05 2017-01-04 $7700.00 Window Closed / Lapsed

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