Our Invention is related to an Intelligent Printer: Remove the Printed Text and
Print Again.
BACKGROUND OF THE INVENTION
A large amount of paper is consumed printing permanent hardcopies in situations
where a temporary hardcopy would suffice. Frequently a temporary hardcopy
would be adequate for a meeting agenda, a draft of an article, memorandum, or
report to be proofread, or recurring information such as daily as schedules or
news. It is often helpful to have hardcopy in hand to read but a permanent
hardcopy copy of the information is not required. For this reason, many paper
documents are discarded the same day they are printed.
Several alternative types of print media have been developed to substitute for
paper in temporary hardcopies. These media are designed to be erased and reused
multiple times. U.S. Pat. No. 5,943,067 to Kong discloses a multi-layer print
medium that is electrically, magnetically, thermally or similarly activated by a
physical effect to change its appearance. U.S. Pat. No. 7,205,088 to If time discloses
a print medium that changes appearance when exposed to a particular wavelength
of light.
Similarly, U.S. patent application 20090034997 to Edwards discloses a print
medium that changes appearance when exposed to light or heat. The substitute
print media of Kong, of If time, and of Edwards are costlier than paper, are not
recyclable at the end of their useful life, and require the purchase and use of
special new printing equipment. In addition, erasing devices are typically required
to allow reuse of the media.
Another approach has been to develop erasable inks and corresponding erasing
devices and procedures to allow the reuse of paper from temporary hardcopies.
U.S. Pat. No. 7,381,757 to Sato discloses ink which is visible when printed and
erased when the paper is heated. A heating device or procedure is required to
erase the ink from the paper before the paper can be reused. U.S. patent
application 20040150702 to Tsuyoshi discloses ink which is visible when printed
and erased when the paper is illuminated.
An illumination device or procedure to un-stack pages of a document and expose
each and every sheet to light is required to erase the ink from the paper before the
paper can be reused. U.S patent application 20070228005 to Hasegawa discloses a
process to apply a special coating to paper, print on the coated paper, and then
erase the paper using a reactive gas generated by a creeping discharge or corona
discharge machine.
3
U.S. Pat. No. 7,111,933 to Morris discloses a system in which invisible ink is
printed on a substrate and subsequently made visible by a developer. The
disclosed process is the opposite of self-erasing and does not address temporary
hardcopies.
Writing pens are available that contain disappearing ink. These are made for
humor and entertainment rather than for the reuse of paper. On the Internet,
suggestions have been made somewhat facetiously to extend the disappearing ink
pen concept to printers. A posting by the user name “GLOBALTOURNIQUET” at
www.halfbakery.com/idea/Disappearing—20 Toner asks if disappearing ink is
available to hide the evidence that an obscene e-mail message was printed. A
posting by Masino at www.masino.com/ideas/DisappearingInkjet.php suggests
that a disappearing ink inkjet cartridge would be useful to print disappearing
clauses on contracts, or clothing on pornographic images to avoid getting into
trouble at work.
From consideration of the foregoing there remains a need to provide a means of
printing temporary hardcopies that are familiar in appearance and handling,
inexpensive, self-erasing, reusable, and recyclable. There is further need to
produce the temporary hardcopies using existing printing equipment.
At present, office all over the world all can produce the waste paper that a large
amount of offices was used every day, the vestige that wherein only has some
printings or scribble on most of waste paper.
These waste paper are generally all sent paper mill back to and are recycled, and
in the process of recycling, can produce a large amount of pollutants, very large
and cause environmental pollution to environmental hazard.
Produce paper in the office simultaneously and need cut down a large amount of
bamboo and wood materials, the destruction of also having caused the forest
reserves, therefore saving paper using just seems very important.
How these are only had in the Zhi Jian office of printing or scribbling vestige and
just carry out restoration disposal, eliminate its printing or scribble vestige, be
again used, this protection to the protection of environment and the forest
reserves, and saving paper using all has earth shaking meaning.
OBJECTIVES OF THE INVENTION
1. The objective of the invention is to a Intelligent Printer: Remove the
Printed Text and Print Again is a self-erasing printing system comprises a
substrate such as A-4 paper, a printer, a printer driver, and self-erasing ink
through heating, abstraction technology.
2. The other objective of the invention is to a self-erasing ink can comprise an
acid-base indicator and a base whereby the ink is colored when printed but
4
erases itself after a predetermined period of time and after the ink has selferased the substrate again reused.
3. The other objective of the invention is to a printing, heating abstracting,
removing technology, to a printing or copying method for covering printing
or scribbling marks and also a spraying pixel material of which the set of
color is the same as that of paper is adopted, the paper with the printing or
scribbling marks is printed or copied again, then the printing or scribbling
marks in the paper are fully covered, the paper restores to the original
state and can be reused, and recovery processing of waste paper and waste
of office paper are avoided.
4. The other objective of the invention is to a significance in achieving
environment friendliness, protecting forest resources and saving paper
first time in the world.
SUMMARY OF THE INVENTION
The is to be understood that the scope of the embodiments is not limited to the
particular systems, methods, compositions, and materials which are disclosed
herein because such may vary. It should also be understood that all terminology
used herein is only for the purpose of describing particular embodiments. These
terms are not intended to be limiting in any way and should not be misconstrued
to limit scope.
As used herein, the term “paper” refers to any printable substrate. The term may
refer not only to paper but also to cloth and woven or non-woven textiles, plastics,
polymers, metals, and any other material or media capable of receiving a printed
image.
As used herein, the term “printer” refers to a device that reproduces information
on paper using a liquid ink. Examples can include ink-jet printers, bubble-jet
printers, copiers, facsimile machines, receipt printers, ticket validators, plotters,
and the like.
As used herein, the term “image” refers to marks, signs, symbols, figures,
indications, and/or appearances than can be printed. Examples of images can
include characters, words, numbers, alpha-numeric symbols, punctuation, text,
lines, underlines, highlighting, pictures, graphics and the like.
As used herein, the term “invisible” means not able to be seen readily with the
naked eye. This does not mean completely imperceptible. An observer may see
that an image is present but the image is still considered “invisible” if it does not
appear substantially different from the background or is not readily discernable.
As used herein, the term “self-erasing” refers to the ability of an image to become
invisible without the application of external stimuli. The presence of air and the
passage of time are not considered external stimuli. Examples of external stimuli
5
can include light, heat, cold, radiation, humidity, desiccation, mechanical forces
and manipulation, gasses, chemicals, absence of light, absence of air, and the like.
As used herein, the term “reuse” means to use again, for the same purpose or for a
different purpose.
As used herein, the term “recycle” means to break down and then reprocess waste
material for a useful purpose.
With this in mind, systems and methods of printing self-erasing temporary
hardcopies are described. A self-erasing printing system may include paper, a
printer, a printer driver, and self-erasing ink. In one embodiment the printer,
under control of the printer driver, forms images by applying self-erasing ink to
the paper.
In an alternative embodiment, a method of temporary printing can comprise steps
of setting up a printer, printing temporary hardcopies, reading or otherwise using
the temporary hardcopies, erasing the images from the hardcopy paper, and
reusing the paper. In another aspect of this method the paper may be recycled or
discarded at the end of its useful life.
Regarding setting up a printer, one step can include ink selection. The printer may
contain only a single cartridge of self-erasing ink or it may contain multiple
cartridges of different types of ink. Multiple cartridges may include different
formulations of self-erasing ink which self-erase over shorter or longer durations.
Multiple cartridges may include different colors of self-erasing ink as well as
different colors of conventional permanent ink or other inks.
The printer driver is computer code that formats data to print properly on a
particular printer and allows specification of the qualities, characteristics, or
attributes of the printed images. The type or types of ink loaded in the printer may
be automatically communicated to the printer driver from the cartridges
containing the inks by means of codes, electronic signals, and the like. The type or
types of ink may also be communicated to the printer driver by being entered
manually by the user. The user may use the printer driver to select which ink or
inks are to be used and assign or map different inks to different colors in the
image to be printed.
Another step that can be included in setting up the printer is adjustment of how
fast the printed hardcopies will self-erase. In addition to different formulations of
ink, the self-erasing time is also determined by the quantity of ink that is applied
to the paper by the printer to form each image. If an image is printed using less
self-erasing ink the image will become invisible sooner. If an image is printed
using more self-erasing ink, which increases the ink saturation of the paper, the
image will take longer to become invisible.
This adjustment of self-erasing time by adjusting the amount of ink applied can be
made using the printer driver or equivalent. It may also be adjusted by altering the
6
properties of the electronic document to be printed. For example, text that is
formatted in a “bold” font will take longer to self-erase compared to a normal
black font because more ink is applied when the text is printed. Conversely text
formatted in a lighter shade will self-erase more quickly than darker text because
less ink will be applied.
For addressing the above problem, the present invention has taked following
method: a kind of method of printing or scribbling vestige in paper part of
eliminating, adopt the sprayed on material with paper part same color, to there is
the paper part of printing or scribbling vestige again print or duplicate, thereby
cover the printing in paper part or scribble vestige part.
Further technical scheme is: the printing in described covering paper part or to
scribble vestige part operation step as follows:
The first step: paper part is scanned, obtain the data of printing or scribbling
vestige part;
Second step: process printing or scribble the scan-data of vestige part;
3rd step: to the printing in paper part or scribble vestige and partly again print or
duplicate, can cover and print or scribble vestige according to the scan-data after
processing.
By paper part is scanned, obtain the scan-data of printing or scribbling vestige
part, then to printing or scribble the scan-data of vestige part, process, according
to the scan-data after processing to the printing in paper part or scribble vestige
and partly again print or duplicate, can cover the printing in paper part or scribble
vestige part, eliminate its printing or scribble vestige, recovering the original state
of paper part.
This situation is particularly suitable for existing printing vestige, has again the
recovery of scribbling vestige paper part. Further technical scheme is: the printing
in described covering paper part or scribble vestige part and can also take
following methods:
The first step: preserve the print data in paper part in computer;
Second step: according to the data in computer, the paper part of printing is
printed again, can be covered printing vestige.
This method is specially adapted to only there is the recovery of printing vestige
paper part.
Further technical scheme is: described sprayed on material is white carbon dust.
Further technical scheme is: described sprayed on material is white ink.
The beneficial effect of said method is: adopt the sprayed on material with paper
part same color; by there being the paper part of printing or scribbling vestige,
again printing or duplicate; thereby cover the printing in paper part or scribble
7
vestige part; make paper part at once return to original state, can reuse, needn't
arrive paper mill and recycle; especially to printing or scribble the less paper part
of vestige; through the processing of said method, just can continue to use
protection ecosystem environment successful at once.
Embodiment 1: the paper part of being printed or scribble vestige by duplicator
to having scans, obtain the scan-data of printing or scribbling vestige, in duplicator
to the printing of obtaining or scribble Trace Data and process, and then in
duplicator, use white carbon dust to duplicate this paper part, original vestige is
covered, thereby eliminate its printing or scribble vestige.
This method is specially adapted to the whole paper part of printing or scribbling
vestige that has.
Embodiment 2: the paper part of being printed or scribble vestige by scanner to
having scans, obtain the scan-data of printing or scribbling vestige, in computer to
the printing of obtaining or scribble Trace Data and process, and then in printer,
use white carbon dust to print this paper part, original vestige is covered, thereby
eliminate its printing or scribble vestige.
This method is specially adapted in printer print range, there is the paper part of
printing or scribbling vestige.
Embodiment 3: in computer, preserve the data of printing, then use white ink by
computer and printer, paper part to be printed again, original vestige is covered,
thereby eliminate it, print vestige. This method is specially adapted to only there is
on the whole the paper part of printing vestige.
EXAMPLES
In the following examples, the system and method of self-erasing printing will be
clarified further by examples thereof. However, it is to be understood that the
following are only exemplary or illustrative. Numerous modifications and
alternative compositions, methods, and systems may be devised by those skilled in
the art. The appended claims are intended to cover such modifications and
alternatives.
Example 1
A 0.3% by weight solution of sodium hydroxide was prepared by dissolving
sodium hydroxide pellets in reverse-osmosis filtered water. Thymolphthalein
indicator was added to the solution to the point of saturation. The solution was
filtered to remove undissolved Thymolphthalein. A mixed surfactant solution was
added in an amount less than 1% of the total solution by weight.
The resulting blue ink was injected into a #2 cartridge manufactured by the
Lexmark Corporation. The cartridge was loaded into a LEXMARK [trade] model
X2480 printer. Text and photographic images were printed over the course of
several days on GEORGIA-PACIFIC [trade] Copy Paper, 88 brightness, 104
8
whiteness, 20-pound weight. The printed images were clearly visible and easily
read when examined 2.5 hours after printing. When examined 5 hours after
printing the images were visible but faint. When examined 16 hours after printing
the images had completely self-erased.
The paper from the self-erased hardcopies was subsequently re-printed in the
same manner and performed as it had originally.
Example 2
Sodium hydroxide was dissolved in 15 mL of reverse-osmosis filtered water to
form a 1.5% solution by weight. A prepared surfactant solution was added at a
quantity of 0.15% by weight.
The surfactant solution contained magnesium isododecylbenzenesulfonate,
ammonium C12-15 paratha sulfate, sodium dodecyl benzenesulfonate, SD alcohol
3-A, sodium xylene sulfonate, lauramidopropylamine oxide, magnesium sulfate,
DMDM hydantoin, pentasodium penetrate, sodium bisulfate,
methylchloroisothiazolinone, and methylisothiazolinone in water.
The surfactant solution served both to improve the flow of the ink and to increase
the solubility of the acid-base indicator.
Phenolphthalein indicator was added to the solution at 1.4% by weight. The
resulting red ink was injected into a cartridge. The cartridge was loaded into a
model CX7450 printer manufactured by EPSON [trade] Corporation. Text and
photographic images were printed on SOUTHWORTH [trade] 100% cotton fiber,
bond finish, 20-pound paper.
The printed images were clearly visible and easily read at the time of printing and
remained substantially readable for several days. When the stack of pages was
examined 12 days after printing all images had self-erased including those on the
top, middle, and bottom of the stack.
Post Script Options:
Use the PostScript Options panel of the Advanced Print Setup dialog box to set
options for a particular PostScript printer. These options include how to handle
non-resident printer fonts and whether to download Asian fonts.
If a PDF contains device-dependent settings, such as halftones and transfer
functions, these settings can be sent in the PostScript output to override the
default settings in the printer. To use these options, you must be connected to a
PostScript printer or have a PostScript printer driver installed with a PPD file
selected.
Font and Resource Policy:
9
Specifies how fonts and resources in the document are sent to a printer when
those fonts and resources aren’t present on the printer.
Send at Start:
Downloads all fonts and resources at the start of the print job. The fonts and
resources remain on the printer until the job has finished printing. This option is
the fastest but uses the most printer memory.
Send by Range:
Downloads fonts and resources before printing the first page that uses them, and
then discards them when they are no longer needed. This option uses less printer
memory. However, if a PostScript processor reorders the pages later in the
workflow, the font downloading can be incorrect, resulting in missing fonts. This
option does not work with some printers.
Send for Each Page:
Downloads all fonts and resources for a given page before the page prints, and
then discards the fonts when the page has finished printing. This option uses the
least printer memory.
Print Method (Acrobat Pro)
Specifies the level of PostScript to generate for the pages. Choose the level of
PostScript appropriate for your printer.
Language (Acrobat Pro)
Specifies the level of PostScript to generate for the pages. Choose the level of
PostScript appropriate for your printer.
Download Asian Fonts
Prints documents with Asian fonts that aren’t installed on the printer or
embedded in the PDF. The Asian fonts must be present on the system.
Emit Undercolor Removal/Black Generation (Acrobat Pro)
Black Generation calculates the amount of black to be used when reproducing a
particular color. Undercolor removal (UCR) reduces cyan, magenta, and yellow
components to compensate for the black added by the black generation. Because it
uses less ink, UCR is used for newsprint and uncoated stock.
Emit Halftones (Acrobat Pro)
Allows you to emit the embedded halftones instead of using the halftones in the
output device. Halftone information controls how much ink is deposited at a
specific location on the paper. Varying the dot size and density creates the illusion
of variations of gray or continuous color. For a CMYK image, four halftone screens
are used: one for each ink used in the printing process.
Emit Transfer Functions (Acrobat Pro)
10
Emits embedded transfer functions. Transfer functions are traditionally used to
compensate for dot gain or dot loss that occurs when an image is transferred to
film. Dot gain occurs when the ink dots that make up a printed image are larger
(for example, due to spreading on paper) than in the halftone screen. Dot loss
occurs when the dots print smaller. With this option, the transfer functions are
applied to the file when the file is output.
Emit Flatness (Acrobat Pro)
allows you to use the flatness value of the PDF if the PDF already has flatness
settings. If the PDF doesn’t have any flatness settings, Acrobat controls it for the
PostScript printing. The flatness value sets the limit for how much Acrobat can
approximate a curve.
Emit PS Form Objects (Acrobat Pro)
Emits PostScript form objects for Form Objects within the PDF. Selecting this
option reduces the overall size of the print job, but it could increase the printer
memory that is used. A form Object is a container of graphics objects (including
path objects, text objects, and sampled images) within the PDF. Form
Objects create a single description for complex objects that can appear many
times in a single document, such as background images or company logos.
Discoloured Background Correction
Prevents printing problems like red boxes over graphics, or pages printing
mirrored or upside down. These problems can occur when Acrobat or Reader
cannot use the default Color Rendering Dictionaries (CRDs) on some PostScript
printers.
Always Use Host Collation (Acrobat Pro)
Specifies if you want Acrobat to always use host collation for printing without
checking the printer driver. Acrobat uses printer collation by default. Printer
collation sends the print jobs separately to the printer and allows the printer to
figure out how to collate the pages. For example, if you send out two copies of a
two-page job, the printer receives two jobs of two pages. Host collation figures out
how to collate the pages in Acrobat and then sends that job to the printer. For
example, if you send out two copies of a two-page job, the printer receives a single
rearranged job of four pages.
Print as Image
Prints pages as bitmap images. Select this option if normal printing doesn’t
produce the desired results, and specify a resolution. This option is available only
for PostScript printers.
Output Options:
Use the Output panel of the Advanced Print Setup dialog box to set output
options.
Color
11
Presents composite and separations options. Other options become available in
the Output panel depending on your selection in this menu. For more information
about color composite and separations, see Printing color.
Flip
Specifies if the orientation of the page on the media. Flip horizontal for wrongreading documents, flip vertical to change vertical orientation. This option is only
enabled for separations and disabled for composites.
Negative
Select this option to print the document reversed. For example, black appears as
white on the resulting output. This option is only enabled for separations and
disabled for composites.
Screening
Specifies the lines per inch (lpi) and dots per inch (dpi) combinations.
Trapping
Specifies if trapping is off. Click Trap Presets to manage trapping presets.
Transparency Flattener Preset
Flattens transparent objects according to the preset you choose.
Simulate Overprinting
Simulates the effects of overprinting spot inks in composite output and converts
spot colors to process colors for printing; the document itself is unchanged. This
option is useful for printing devices that don’t support overprinting and is
available only if you choose Composite from the Color menu. If you intend to use a
file for separations on a RIP (raster image processor) or for final output, don’t
select this option.
Note:
When printing to a printer that supports overprinting, make sure that this option
is unselected, so the native overprinting capabilities of the printer are used.
Use Maximum Available JPEG2000 Image Resolution
Controls how resolution progression information, if present, is used when
generating PostScript. When selected, the maximum resolution data contained in
the image is used. When unselected, the resolution data is consistent with the
resolution settings on the Transparency Flattening panel.
Halftone Screen:
In commercial printing, continuous tone is simulated by dots (called halftone dots)
printed in rows (called lines or line screens). Lines are printed at different angles to
make the rows less noticeable. The Screening menu in the Output section of the
Print dialog box displays the recommended sets of line screens in lines per inch
(lpi), and resolution in dots per inch (dpi), based on the currently selected PPD. As
12
you select inks in the ink list, the values in the Frequency and Angle boxes change,
showing you the halftone screen frequency and angle for that ink.
A high line-screen ruling (for example, 150 lpi) spaces the dots closely together to
create a finely rendered image on the press; a low line-screen ruling (60 lpi to 85
lpi) spaces the dots farther apart to create a coarser image. The size of the dots is
also determined by the line screen. A high line-screen ruling uses small dots; a low
line-screen ruling uses large dots. The most important factor in choosing a linescreen ruling is the type of printing press your job will use. Ask your service
provider how fine a line screen its press can hold, and make your choices
accordingly.
Color Management
Use the Color Management panel of the Advanced Print Setup dialog box to set
options for printing color. For more information about printing color, see Printing
color.
Color Handling
Determines if color management is used and whether it happens in the application
or at the printing device.
Acrobat color management
Enables you to select an ICC Profile that describes the target output device.
Printer Color Management
Sends the document’s color data along with the document profile directly to the
printer and lets the printer convert the document to the printer color space. The
exact results of the color conversion can vary among printers.
Same as Source (No Color Management)
Discards all color management information and sends device color to the printer.
Color Profile
Determines the profile used for handling colors during printing.
Output Color
Displays the output color based on the settings in the Output panel of
the Advanced Print Setup dialog box.
Treat grays as K-only grays
Select this option to ensure that any grayscale as well as RGB graphical objects for
which R, G, B have equal values, are printed using only the black (K) when you
enable color management and specify a CMYK profile printing to a PostScript
printer
Preserve Black
13
Specifies that pure K-based CMYK colors are preserved as K-based in CMYK to
CMYK conversions that may occur when you enable color management and
specify a CMYK profile printing to a PostScript printer.
Preserve CMYK Primaries
Specifies that pure primary-based (C only, M only, Y only, or K only) CMYK colors
are preserved in CMYK to CMYK conversions that may occur when you enable
color management and specify a CMYK profile printing to a PostScript printer.
Apply Output Preview Settings
Simulates the print space defined by the device identified in the Simulation Profile
menu of the Output Preview dialog box. (Choose Tools > Print
Production > Output Preview.) This option allows you to simulate the
appearance of one device on another.
BRIEF DESCRIPTION OF THE DIAGRAM
Fig.1: Remove the Printed Text and Print Again, flow chart.
Fig.2: Remove the Printed Text and Print Again Process.
Fig.3: Color Printed Text and Print Again Complete Process.
DESCRIPTION OF THE INVENTION
the scope of the embodiments is not limited to the particular systems, methods,
compositions, and materials which are disclosed herein because such may vary. It
should also be understood that all terminology used herein is only for the purpose
of describing particular embodiments. These terms are not intended to be limiting
in any way and should not be misconstrued to limit scope.
As used herein, the term “paper” refers to any printable substrate. The term may
refer not only to paper but also to cloth and woven or non-woven textiles, plastics,
polymers, metals, and any other material or media capable of receiving a printed
image.
As used herein, the term “printer” refers to a device that reproduces information
on paper using a liquid ink. Examples can include ink-jet printers, bubble-jet
printers, copiers, facsimile machines, receipt printers, ticket validators, plotters,
and the like.
As used herein, the term “image” refers to marks, signs, symbols, figures,
indications, and/or appearances than can be printed. Examples of images can
include characters, words, numbers, alpha-numeric symbols, punctuation, text,
lines, underlines, highlighting, pictures, graphics and the like.
As used herein, the term “invisible” means not able to be seen readily with the
naked eye. This does not mean completely imperceptible. An observer may see
14
that an image is present but the image is still considered “invisible” if it does not
appear substantially different from the background or is not readily discernable.
As used herein, the term “self-erasing” refers to the ability of an image to become
invisible without the application of external stimuli. The presence of air and the
passage of time are not considered external stimuli. Examples of external stimuli
can include light, heat, cold, radiation, humidity, desiccation, mechanical forces
and manipulation, gasses, chemicals, absence of light, absence of air, and the like.
As used herein, the term “reuse” means to use again, for the same purpose or for a
different purpose.
As used herein, the term “recycle” means to break down and then reprocess waste
material for a useful purpose.
With this in mind, systems and methods of printing self-erasing temporary
hardcopies are described. A self-erasing printing system may include paper, a
printer, a printer driver, and self-erasing ink. In one embodiment the printer,
under control of the printer driver, forms images by applying self-erasing ink to
the paper.
In an alternative embodiment, a method of temporary printing can comprise steps
of setting up a printer, printing temporary hardcopies, reading or otherwise using
the temporary hardcopies, erasing the images from the hardcopy paper, and
reusing the paper. In another aspect of this method the paper may be recycled or
discarded at the end of its useful life.
Regarding setting up a printer, one step can include ink selection. The printer may
contain only a single cartridge of self-erasing ink or it may contain multiple
cartridges of different types of ink. Multiple cartridges may include different
formulations of self-erasing ink which self-erase over shorter or longer durations.
Multiple cartridges may include different colors of self-erasing ink as well as
different colors of conventional permanent ink or other inks.
The printer driver is computer code that formats data to print properly on a
particular printer and allows specification of the qualities, characteristics, or
attributes of the printed images. The type or types of ink loaded in the printer may
be automatically communicated to the printer driver from the cartridges
containing the inks by means of codes, electronic signals, and the like.
The type or types of ink may also be communicated to the printer driver by being
entered manually by the user. The user may use the printer driver to select which
ink or inks are to be used and assign or map different inks to different colors in the
image to be printed.
Another step that can be included in setting up the printer is adjustment of how
fast the printed hardcopies will self-erase. In addition to different formulations of
15
ink, the self-erasing time is also determined by the quantity of ink that is applied
to the paper by the printer to form each image. If an image is printed using less
self-erasing ink the image will become invisible sooner. If an image is printed
using more self-erasing ink, which increases the ink saturation of the paper, the
image will take longer to become invisible.
This adjustment of self-erasing time by adjusting the amount of ink applied can be
made using the printer driver or equivalent. It may also be adjusted by altering the
properties of the electronic document to be printed. For example, text that is
formatted in a “bold” font will take longer to self-erase compared to a normal
black font because more ink is applied when the text is printed. Conversely text
formatted in a lighter shade will self-erase more quickly than darker text because
less ink will be applied.

WE CLAIMS
1) Our invention Intelligent Printer: Remove the Printed Text and Print Again
is a self-erasing printing system comprises a substrate such as A-4 paper, a
printer, a printer driver, and self-erasing ink through heating, abstraction
technology. The invention is also a self-erasing ink can comprise an acidbase indicator and a base whereby the ink is colored when printed but
erases itself after a predetermined period of time and after the ink has selferased the substrate again reused. The invention is a printing, heating
abstracting, removing technology, to a printing or copying method for
covering printing or scribbling marks and also a spraying pixel material of
which the set of color is the same as that of paper is adopted, the paper
with the printing or scribbling marks is printed or copied again, then the
printing or scribbling marks in the paper are fully covered, the paper
restores to the original state and can be reused, and recovery processing of
waste paper and waste of office paper are avoided. This invented method is
a is of great significance in achieving environment friendliness, protecting
forest resources and saving paper first time in the world.
2) According to claim1# the invention is to a Intelligent Printer: Remove the
Printed Text and Print Again is a self-erasing printing system comprises a
substrate such as A-4 paper, a printer, a printer driver, and self-erasing ink
through heating, abstraction technology.
3) According to claim1,2# the invention is to a self-erasing ink can comprise
an acid-base indicator and a base whereby the ink is colored when printed
but erases itself after a predetermined period of time and after the ink has
self-erased the substrate again reused.
4) According to claim1,2,3# the invention is to a printing, heating abstracting,
removing technology, to a printing or copying method for covering printing
or scribbling marks and also a spraying pixel material of which the set of
color is the same as that of paper is adopted, the paper with the printing or
scribbling marks is printed or copied again, then the printing or scribbling
marks in the paper are fully covered, the paper restores to the original
state and can be reused, and recovery processing of waste paper and waste
of office paper are avoided.
5) According to claim1,2,4# the invention is to a significance in achieving
environment friendliness, protecting forest resources and saving paper
first time in the world.