Patent US5765074A successfully refreshed from Google Patents.
US5765074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transfer device and image forming apparatus using said transfer device
Assignee: Minolta Co Ltd
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Filing: 1996-06-24
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Granted: 1998-06-09
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Expires: 2016-06-24
Abstract
Abstract The present invention relates to an image forming apparatus having a first forming device forming a first toner image on a first surface of a sheet, a second forming device forming a second toner image on a second surface of the sheet, a detecting device detecting the amount of adhered toner on the first surface of the sheet, a setting device setting an forming output according to the amount of adhered toner detected by detecting device, and inputting device inputting the forming output to the second forming device in order to form the second toner image by the settled forming output. The object of the present invention is to provide a reliable image forming.
Inventors
- 👤 Masato Yasui
- 👤 Kazunobu Maekawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:28
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/22; G03G15/23; G03G15/231; G03G15/14; G03G15/16; G03G15/163; G03G15/1635; G03G15/165; G03G15/1655; G03G2215/00; G03G2215/00025; G03G2215/00029; G03G2215/00067; G03G2215/01; G03G2215/0167; G03G2215/0174; G03G2215/018
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
97 words
An image forming apparatus comprising: first forming means for forming a first toner image on a first surface of a sheet; second forming means for forming a second toner image on a second surface of the sheet; detecting means for detecting the amount of adhered toner on the first surface of the sheet; setting means for setting a forming output according to the amount of adhered toner detected by the detecting means; and inputting means for inputting the forming output to the second forming means in order to form the second toner image by the forming output.
Claim 2
Dependent Claim
97 words
An image forming apparatus comprising: first forming means for forming a first toner image on a first surface of a sheet; second forming means for forming a second toner image on a second surface of the sheet; detecting means for detecting the amount of adhered toner on the first surface of the sheet; setting means for setting a forming output according to the amount of adhered toner detected by the detecting means; and inputting means for inputting the forming output to the second forming means in order to form the second toner image by the forming output.
Claim 3
Dependent Claim
34 words
The image forming apparatus of claim 1 wherein the detecting means detects an area ratio of a toner adhered area to a toner non-adhered area in order to judge the amount of adhered toner.
Claim 4
Dependent Claim
147 words
An image forming apparatus comprising: first forming means for forming a first toner image on a first surface of a sheet; second forming means for forming a second toner image on a second surface of the sheet; detecting means for detecting the amount of adhered toner on the first surface of the sheet; setting means for setting a forming output according to the amount of adhered toner detected by the detecting means; and inputting means for inputting the forming output to the second forming means in order to form the second toner image by the forming output; wherein the setting means sets the forming output so that the second forming means makes the amount of the second toner image larger than that of the first toner image, when the detected amount of adhered toner on the first surface of the sheet is larger than a predetermined value.
Claim 5
Dependent Claim
147 words
An image forming apparatus comprising: first forming means for forming a first toner image on a first surface of a sheet; second forming means for forming a second toner image on a second surface of the sheet; detecting means for detecting the amount of adhered toner on the first surface of the sheet; setting means for setting a forming output according to the amount of adhered toner detected by the detecting means; and inputting means for inputting the forming output to the second forming means in order to form the second toner image by the forming output; wherein the setting means sets the forming output so that the second forming means makes the amount of the second toner image larger than that of the first toner image, when the detected amount of adhered toner on the first surface of the sheet is larger than a predetermined value.
Claim 6
Dependent Claim
122 words
An image forming apparatus comprising: first forming means for forming a first toner image on a first surface of a sheet which is adhered on a carrying member by a first adhering power; second forming means for forming a second toner image on a second surface of the sheet which is adhered on the carrying member by a second adhering power; detecting means for detecting the amount of adhered toner on the first surface of the sheet; setting means for setting an adhering output according to the amount of adhered toner detected by the detecting means; and inputting means for inputting the adhering output to the second forming means in order to settle the second adhering power according to the adhering output.
Claim 7
Dependent Claim
122 words
An image forming apparatus comprising: first forming means for forming a first toner image on a first surface of a sheet which is adhered on a carrying member by a first adhering power; second forming means for forming a second toner image on a second surface of the sheet which is adhered on the carrying member by a second adhering power; detecting means for detecting the amount of adhered toner on the first surface of the sheet; setting means for setting an adhering output according to the amount of adhered toner detected by the detecting means; and inputting means for inputting the adhering output to the second forming means in order to settle the second adhering power according to the adhering output.
Claim 8
Dependent Claim
34 words
The image forming apparatus of claim 4 wherein the detecting means detects an area ratio of a toner adhered area to a toner non-adhered area in order to judge the amount of adhered toner.
Claim 9
Dependent Claim
52 words
The image forming apparatus of claim 4 wherein the setting means sets the adhering output so that the second forming means makes the second adhering power larger than the first adhering power, when the detected amount of adhered toner on the first surface of the sheet is larger than a predetermined value.
Claim 10
Dependent Claim
117 words
A image transfer device comprising: first transferring means for transferring a first toner image from a image carrying member to a first surface of a sheet by a first transfer power; second transferring means for forming a second toner image from the image carrying member to a second surface of the sheet by a second transfer power; detecting means for detecting the amount of adhered toner on the first surface of the sheet; setting means for setting a transferring output according to the amount of adhered toner detected by the detecting means; and inputting means for inputting the transferring output to the second transferring means in order to transfer the second toner image by the transferring output.
Claim 11
Dependent Claim
117 words
A image transfer device comprising: first transferring means for transferring a first toner image from a image carrying member to a first surface of a sheet by a first transfer power; second transferring means for forming a second toner image from the image carrying member to a second surface of the sheet by a second transfer power; detecting means for detecting the amount of adhered toner on the first surface of the sheet; setting means for setting a transferring output according to the amount of adhered toner detected by the detecting means; and inputting means for inputting the transferring output to the second transferring means in order to transfer the second toner image by the transferring output.
Claim 12
Dependent Claim
34 words
The image transfer device of claim 7 wherein the detecting means detects an area ratio of a toner adhered area to a toner non-adhered area in order to judge the amount of adhered toner.
Claim 13
Dependent Claim
52 words
The image transfer device of claim 7 wherein the setting means sets the transferring output so that the second transferring means makes the second transfer power larger than the first transfer power, when the detected amount of adhered toner on the first surface of the sheet is larger than a predetermined value.
Claim 14
Dependent Claim
122 words
An image transfer device comprising: first forming means for forming a first toner image on a first surface of a sheet which is adhered on a carrying member by a first adhering power; second forming means for forming a second toner image on a second surface of the sheet which is adhered on the carrying member by a second adhering power; detecting means for detecting the amount of adhered toner on the first surface of the sheet; setting means for setting an adhering output according to the amount of adhered toner detected by the detecting means; and inputting means for inputting the adhering output to the second forming means in order to settle the second adhering power according to the adhering output.
Claim 15
Dependent Claim
122 words
An image transfer device comprising: first forming means for forming a first toner image on a first surface of a sheet which is adhered on a carrying member by a first adhering power; second forming means for forming a second toner image on a second surface of the sheet which is adhered on the carrying member by a second adhering power; detecting means for detecting the amount of adhered toner on the first surface of the sheet; setting means for setting an adhering output according to the amount of adhered toner detected by the detecting means; and inputting means for inputting the adhering output to the second forming means in order to settle the second adhering power according to the adhering output.
Claim 16
Dependent Claim
32 words
The image forming apparatus of claim 10 wherein the detecting means detects an area ratio of a toner adhered area to a toner non-adhered area to judge the amount of adhered toner.
Claim 17
Dependent Claim
52 words
The image forming apparatus of claim 10 wherein the setting means sets the adhering output so that the second forming means makes the second adhering power larger than the first adhering power, when the detected amount of adhered toner on the first surface of the sheet is larger than a predetermined value.
Claim 18
Dependent Claim
85 words
An image forming method comprising the steps of: first forming a first toner image on a first surface of a sheet; second forming a second toner image on a second surface of the sheet; detecting the amount of adhered toner on the first surface of the sheet; setting a forming output according to the amount of adhered toner detected by the detecting means; and inputting the forming output to the second forming means in order to form the second toner image by the forming output.
Claim 19
Dependent Claim
85 words
An image forming method comprising the steps of: first forming a first toner image on a first surface of a sheet; second forming a second toner image on a second surface of the sheet; detecting the amount of adhered toner on the first surface of the sheet; setting a forming output according to the amount of adhered toner detected by the detecting means; and inputting the forming output to the second forming means in order to form the second toner image by the forming output.
Claim 20
Dependent Claim
113 words
An image forming method comprising the steps of: first forming a first toner image on a first surface of a sheet which is adhered on a carrying member by a first adhering power; second forming a second toner image on a second surface of the sheet which is adhered on the carrying member by a second adhering power; detecting the amount of adhered toner on the first surface of the sheet; setting an adhering output according to the amount of adhered toner detected by the detecting means; and inputting the adhering output to the second forming means in order in order to settle the second adhering power according to the settled adhering output.
Claim 21
Dependent Claim
113 words
An image forming method comprising the steps of: first forming a first toner image on a first surface of a sheet which is adhered on a carrying member by a first adhering power; second forming a second toner image on a second surface of the sheet which is adhered on the carrying member by a second adhering power; detecting the amount of adhered toner on the first surface of the sheet; setting an adhering output according to the amount of adhered toner detected by the detecting means; and inputting the adhering output to the second forming means in order in order to settle the second adhering power according to the settled adhering output.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-06-08 | 2001-12-08 | 2002-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-06-08 | 2005-12-08 | 2006-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-06-08 | 2009-12-08 | 2010-06-09 | $7700.00 | Window Closed / Lapsed |