WO1997030417A1 - Copieur numerique - Google Patents

Copieur numerique Download PDF

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Publication number
WO1997030417A1
WO1997030417A1 PCT/CN1997/000010 CN9700010W WO9730417A1 WO 1997030417 A1 WO1997030417 A1 WO 1997030417A1 CN 9700010 W CN9700010 W CN 9700010W WO 9730417 A1 WO9730417 A1 WO 9730417A1
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WIPO (PCT)
Prior art keywords
image
input
output
data memory
copier
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Application number
PCT/CN1997/000010
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English (en)
French (fr)
Inventor
Jie Liu
Original Assignee
Jie Liu
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jie Liu filed Critical Jie Liu
Priority to AU15887/97A priority Critical patent/AU1588797A/en
Publication of WO1997030417A1 publication Critical patent/WO1997030417A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/387—Composing, repositioning or otherwise geometrically modifying originals

Definitions

  • the present invention relates to a copying machine, more specifically to a digital copying machine.
  • Existing office equipment also includes a copying device with storage, modification, calibration, editing, and printing functions that connects image scanners (such as fax machines and fax cards) with computers and printers. Mode connection, occupying a lot of space, the connection is tedious, the copying process needs to be read in by a computer, Printing operation procedures, data can not be directly transmitted, and therefore inconvenient to use, copy slower. Disclosure of the Invention
  • the purpose of the present invention is to design a digital copying machine, which is an integrated copying machine composed of image scanning input, a computer and an image printout that can reprocess an image.
  • the copying principle of this copier is to convert the original image into a digital signal after optical scanning, or store it in the copier for the operator to modify and re-edit the original image, and then print it out; or directly drive the printout, so Complete the copying task. Since the image is transmitted in digital form during the copying process, the image can be effectively copied with fidelity, so that the copying effect is more ideal than that of a drum copier, and the functions are more convenient to use.
  • the digital copying machine of the present invention includes
  • An image scanning input mechanism, a panel option input mechanism for controlling the nature of copying, and an image printout mechanism that prints and restores image data into an image characterized in that the copier further includes image editing that performs secondary processing editing processing on the image data A computer; an image data memory, which is a function of temporarily storing image data, is connected between the image scanning input mechanism and the image print output mechanism, which is a so-called buffer area; and the panel option input mechanism can control each of the output strobes according to the options
  • the signals are respectively input to the image scanning input mechanism, the image editing computer, the image printout mechanism and the image data memory or are respectively input to the image scan input mechanism, the image printout mechanism and the image data memory.
  • the image data memory includes a first data memory, a second data memory, a first strobe gate, a second strobe gate, and a third strobe gate; an input end of the first data storage is connected to the scan input The output end of the mechanism, the output end of the first data memory is connected in parallel to the first and second strobe gate input ends, and the output end of the first strobe gate is connected in parallel to the input and output ends of the image editing computer and The input end of the third strobe gate, the input end of the second data memory is connected in parallel to the second and third strobe gate output ends, and the output end of the second data memory is connected to the image print output mechanism input end. .
  • the panel option input mechanism includes a microprocessor, a first decoder, a second decoder, an option input key composed of a copy mode or a grayscale selection mode or a reduction mode or an enlargement mode, and the function is used in each option mode.
  • Numerical input keys for copying or modifying, gray level, enlargement ratio, reduction ratio selection are connected to the input end of the microprocessor, and the option input keys are connected to the first A decoder input terminal, the numerical input key is connected to the input terminal of the second decoder, and the microprocessor outputs the gating control signal.
  • FIG. 1 is a block diagram of a basic structure of the present invention
  • Figure 1 is a structural block diagram of a preferred embodiment of the present invention.
  • the digital copying machine of the present invention includes an image scanning input mechanism 11, an image editing computer 13, an image printout mechanism 15, a panel option input mechanism 14, and
  • each of the strobe control signals output by the panel option input mechanism 14 is input to the image scan output mechanism 15 and the image data storage 12, respectively, and the image data storage 12 includes a first data storage 21 and a second data The memory 22, the first gate 23, the second gate 24, and the third gate 25.
  • the input terminal of the first data memory 21 is connected to the output terminal of the scan input mechanism 11 and the output terminal of the first data memory 21.
  • the output terminal of the first gate 23 is connected in parallel to the input / output terminal of the image editing computer 13 and the input of the third gate 25, and the second
  • the input terminal of the data memory 22 is connected to the output terminals of the second and third gates 24 and 25 in parallel, and the output terminal thereof is connected to the input terminal of the image printout mechanism 15.
  • the panel option input mechanism 14 is controlled by the microprocessor 26, the first A decoder 27, a second decoder 28, and an option input key 29, and a value input key 30.
  • the output ends of the first and second decoders 27 and 28 are connected to the input end of the microprocessor 26, and the option input key 29 connected to the first decoder 27
  • the terminal, numeric key 30 connected to the second input 28 of the decoder, the output gate control signal of the microprocessor 26 are connected to the input ends of the first and second decoders 27 and 28.
  • the image scanning input mechanism 11 is an image digital conversion mechanism. It has the same working principle as a flatbed scanner. It has the function of converting the original image of the copy into a digital signal through the scanning actuator and inputting the temporary storage of the data memory. To further improve the working speed of the image scanning input mechanism, its image data should be directly input into the data memory through the data channel, which can reduce the problem of slow copy speed caused by the data reading speed of image editing calculations.
  • the scanner's The resolution can reach 2400dpi, which is relatively accurate for the drum copier used in the existing market.
  • the scanner can be divided into monochrome and color. Monochrome works at a scanning speed of 300 dots per second. A piece of A4 paper can complete the digital conversion of the image in only 7 seconds. This digital copier can draw on the image scanning input method of the currently mature flatbed scanner.
  • the image editing computer 13 is a computer-based mechanism that can perform secondary processing and editing on image data. It can edit or modify part or all of the image data according to people's wishes, and can also zoom in or out on part or all of the image. Processing, transpose, etc. From the perspective of color copying, you can also redefine part or all of the color of the image. As pages have been replaced in recent years (rule 26) The popularity and application of portable computers, so when implementing a digital copying machine, the computer part can be placed on the side or the head of the copying machine casing to form an integrated structure. At the same time, because the copying machine is only a dedicated office equipment, The calculation requirements will not be too high, so you can not reserve disks and so on.
  • a large-capacity memory that can store A3 paper with a resolution of 2400dpi is used to store the pixels of the image. If designed as a color digital copier , The capacity will be expanded by four times.
  • an LCD panel can be set on the upper part of the copier body, and the keyboard can be set in the dark place of the copier body or on the LCD panel side.
  • you should set a data dump device interface such as a disk or optical disk interface.
  • the image printout mechanism 15 can be printed according to the laser It is made by the principle of a printer or an inkjet printer or a speed printer.
  • the image data is printed and restored into an image.
  • the image can be divided into regions and multiple print heads. Simultaneous printing. Because of the existing dot matrix printers, only laser printers and inkjet printers have higher accuracy than other types of printers, and the resolution can reach 720dpi, which plays an important role in improving copy quality. In terms of printing speed, laser printers are also higher than inkjet printers.
  • the Laserjet 4 V laser printer introduced by HP in the United States in recent years can print 5 pages per minute under the condition of A4 format and 500 x 600dpi resolution.
  • the recently launched HPDJ1200C inkjet printer, with a resolution of 600 X 300dpi, can only print 7 pages per minute, which shows the difference in printing speed.
  • inkjet printers are much cheaper than laser printers in color printing This can be an important choice for the design of color copying of this digital copier.
  • Laser printers and inkjet printers are slower in copying and discharging paper than the drum-type copier for the image printout of this digital copier.
  • its performance-price ratio is unmatched by the photocopier.
  • the panel option input mechanism 14 is used to control the copy nature. For example, there are four options.
  • the first option is the copy mode selection, including the modification mode and the copy mode. When the modification mode is selected, the original image can be input to the image editing. Computer 13 for modification; when the copy mode is selected, it will be considered that there is no need to process the original, and the digital copier does not need to press the replacement page (decision 26)
  • One frame is read and stored, and the printout can be synchronized according to the scanning line to improve the copy speed.
  • the second option is grayscale selection, which can provide 64 levels of grayscale, which is sufficient for medium and advanced desktop scanners and laser printers. Requirements for grayscale. Options three and four are for copy reduction and enlargement, for example, they can be increased or decreased by 2%.
  • Microprocessor 26 e.g. 8951
  • first decoder 27 e.g. 8951
  • second decoder 28 e.g. 8951
  • option input keys e.g. 8951
  • Numerical input key 30 constitutes a panel option input mechanism 14.
  • Microprocessor 26 outputs control scan input mechanism 11, image editing computer 13, image print output mechanism 15, first and second data storage 21, 22, and first, second, Three gates 23, 24, 25 work signals, and the gates work as interface circuits.
  • the digital copier When the operator places the original on the scanning mechanism 11 and presses the panel to enter option one (29, 30) to select the copy mode, the digital copier enters the copying state.
  • the scanning executive mechanism II of the digital copier Under the control of the processor 26 (8951), the original image is converted into digital signals line by line and stored in the scan data memory 21, because the microprocessor 26 has opened the gate 24 and closed the selection at the same time when the option is operating.
  • the image data can be directly entered into the print data memory 22.
  • the print output mechanism 15 Under the control of the microprocessor, the print output mechanism 15 will print the original image according to the stored image data.
  • the microprocessor 26 will close the gate 24 and open the gate 23 at the same time, so that the image data is input into the image editing computer 13 for the operator to process the image ⁇ ⁇ again.
  • the microprocessor 26 may be informed to open the gate 25 and transfer the image data to the print data storage 22 for restoring the printed image. Pass gates 23, 24 are closed.
  • Digital copiers have high-quality copying effects, and will have inestimable value in the fields of printing, electronics, finance, public security and national defense.
  • the digital copying machine according to the present invention can also have various modifications, improvements and changes, but these modifications, improvements and changes will not depart from the scope defined by the claims of the present invention.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Record Information Processing For Printing (AREA)
  • Facsimiles In General (AREA)

Description

敖字式复印机 技术领域
本发明涉及一种复印机， 更确切地说是涉及一种数字式复印机. 背景技术
现有的光鼓式复印机是采用光学原理将原件的影像投射到光鼓表 面， 在静电的作用下将墨粉按原件影像固定在复印件上， 以完成复印工 作， 因此光鼓式复印机从复印模式上讲可称为模拟式复印机， 该类复印机 不具备对原件影像进行存贮、 修改、 校排、 编辑等的能力， 由于图像的光 信号会受到诸如光偏转、 调制、 磁显、 转印及定影等由墨粉指标及机械品 质等因素决定的限制， 使图像的像素受到损失， 因而很难达到理想的复印 效果， 不能实现高质量的复印， 而高品质的光鼓式复印机价格也很昂贵. 现有的办公设备中也有将图像扫描机 (如传真机、 传真卡)与计算机、 打印机连接构成的具有存贮、 修改、 校排、 编辑、 打印功能的复印装置， 由于各设备采用物理模式连接， 占用空间多、 连接较繁瑣， 复印过程需经 计算机的读入操作、 打印操作等程序、 数据不能直接传递， 因而使用不方 便、 复印速度较慢. 发明的公开
本发明的目的在于设计一种数字式复印机， 是一种由图像扫描输入、 计算机和图像打印输出组成的可对一幅图像进行再处理的一体式复印 机.
该复印机的复印原理是将原件影像经光学扫描后转化成数字信号， 或 存贮到复印机中， 以备操作者对原件影像进行修改和再编辑， 再经打印输 出； 或直接驱动打印输出， 从而完成复印任务. 由于在复印过程中， 其图 像是以数字的形式进行传递的， 所以图像能有效地进行保真复印， 从而使 复印效果较光鼓式复印机更为理想， 且功能多使用方便，
本发明的数字式复印机， 包括将复印原件图像扫描转化为数字信号的
替换页 (细则第 26条) 图像扫描输入机构， 用于控制复印性质的面板选项输入机构和将图像数据 打印还原成为图像的图像打印输出机构， 其特征在于， 所说复印机还包括 对图像数据进行二次加工编辑处理的图像编辑计算机； 在图像扫描输入机 构与图像打印输出机构之间连接有作为暂存图像数据功能的图像数据存 储器， 即所谓的緩存区； 而所述面板选项输入机构可依据选项将输出的各 选通控制信号分别输入到所述的图像扫描输入机械、 图像编辑计算机、 图 像打印输出机构和图像数据存储器或分别输入到所述的图像扫描输入机 构、 图像打印输出机构和图像数据存储器.
另外， 所述图像数据存储器包括第一数据存储器、 第二数据存储器、 第一选通门、 第二选通门和第三选通门； 所述第一数据存储器的输入端接 所述扫描输入机构的输出端， 所述第一数据存储器的输出端并接第一、 第 二选通门输入端， 所述第一选通门的输出端并接所述图像编辑计算机的输 入、 输出端和第三选通门的输入端， 所述第二数据存储器的输入端并接第 二、 第三选通门输出端， 所述第二数据存储器的输出端接所述的图像打印 输出机构输入端.
所述的面板选项输入机构包括微处理器、 第一译码器、 第二译码器、 由复印模式或灰度选择模式或缩小模式或放大模式构成的选项输入键和 在各选项模式中作复印或修改、 灰度等级、 放大比例、 缩小比例选择的数 值输入键； 所述第一、 第二译码器的输出端接所述的微处理器的输入端， 所述选项输入键接第一译码器输入端， 所述数值输入键接第二译码器的输 入端， 所述微处理器输出所述的选通控制信号.
以下结合实施例及附图进一步详细说明本发明的技术解决方案. 附图的简要说明
图 1为本发明的基本结构框图；
图 1为本发明的最佳实施例的结构框图.
实现本发明的最佳方式
参见图 1及图 2， 本发明的数字式复印机包括图像扫描输入机构 11 、 图像编辑计算机 13、 图像打印输出机构 15、 面板选项输入机构 14、 以及
替换页 (细则第 26条) 图像数据存储器 12 , 所述面板选项输入机构 14输出的各选通控制信号分 别输入到所述的图像扫描输出机构 15和图像数据存储器 12， 图像数据存 储器 12包括第一数据存储器 21、 第二数据存储器 22、 第一选通门 23、 第二选通门 24和第三选通门 25，第一数据存储器 21的输入端接扫描输入 机构 11的输出端、第一数据存储器 21的输出端并接第一、第二选通门 23、 24的输入端， 第一选通门 23的输出端并接图像编辑计算机 13的输入 /输 出端和第三选通门 25 的输入端， 而第二数据存储器 22 的输入端并接第 二、 第三选通门 24 、 25的输出端， 其输出端接到图像打印输出机构 15 的输入端， 面板选项输入机构 14是由微处理器 26、 第一译码器 27、 第二 译码器 28和选项输入鍵 29，数值输入键 30构成，第一、第二译码器 27、 28的输出端接微处理器 26的输入端， 选项输入键 29接第一译码器 27的 输入端，数值输入键 30接第二译码器 28的输入端， 微处理器 26输出选通 控制信号。 工业应用' t生
图像扫描输入机构 11 是一个图像数字转化机构， 具有与平板式扫描 仪基本相同的工作原理， 具有将复印原件图像经扫描执行机构转化为数字 信号并输入数据存储器暂存的功能， 实施时为能进一步提高图像扫描输入 机构的工作速度， 应将其图像数据通过数据通道直接输入到数据存储器 中， 这样可减少由于图像编辑计算的数据读取速度所造成的复印速度緩慢 问题. 目前， 扫描仪的分辨率可达 2400dpi , 这对现有市场上所使用的光 鼓式复印机来说， 其精度相对提高. 扫描仪可分单色、 彩色两种， 单色以 300点 /秒的扫描速度工作， 一幅 A4纸仅需 7秒钟即可完成图像数字转化 工作. 本数字复印机可借鉴目前已相当成熟的平板式扫描仪的图像扫描输 入方法工作.
图像编辑计算机 13是以计算机为核心的可对图像数据进行二次加工 编辑处理的机构， 可以根据人们的意愿对图像数据的部分或全部进行编 辑、 修改， 也可以对图像的局部或全部进行缩放、 转置等处理， 从彩色复 印角度出发， 还可对图像的局部或全部色彩重新进行定义， 由于近年来便 替换页 (细则第 26条) 携式计算机的普及和应用， 因而在实施数字式复印机时， 可将计算机部分 置于复印机机壳的侧面或项部， 以形成一体化结构. 同时由于复印机仅是 一个专用的办公设备， 对其计算要求不会太高， 因而可不保留 盘等， 从 实用出发设置一个可供存贮 A3紙面积的， 分辨率达 2400dpi的大容量内 存， 用于存贮图像的像素. 若设计成彩色数字复印机， 则将容量再扩大四 倍. 此外， 可在复印机机体上部设置液晶显示板， 将键盘设置在复印机机 体的暗处或设置在液晶显示板侧. 为了能提高对图像数据的编辑速度， 可 加入鼠标器来加快图像数据的搜索和修改. 为了能永久性地保留复印原 件， 应设置数据的转储设备接口， 如磁盘或光盘的接口. 由于该计算机的 专用性， 其软件无需保留在外存媒体中， 可直接固化在计算机的内存里， 图像打印输出机构 15可根据激光打印机或者喷墨打印机或者速印机 的原理制成， 将图像数据打印还原成为图像， 实施时为提高复印速度， 除 的数据緩存区外， 还可采用分区域、 多打印头等的方式对图像同时进行打 印. 由于在现有的点阵式打印机中， 只有激光打印机和喷墨打印机相对其 他形式的打印机精度高， 分辨率可达 720dpi , 对提高复印品质起到了重要 的作用。 在打印速度方面， 激光打印机也较喷墨打印机高， 如美国惠普公 司近年来推出的 Laserjet 4 V型激光打印机在 A4幅面、 500 χ 600dpi分辨 率的情况下， 每分钟可打印 5页， 而其近期推出的 HPDJ1200C型喷墨打 印机， 以 600 X 300dpi分辨率， 每分钟仅能打印 7页， 由此可见它们在打 印速度上的差异. 但在彩色打印方面喷墨打印机较激光打印机成本低得 多， 这对本数字式复印机在彩色复印的设计上可成为重要的选择. 激光打 印机和喷墨打印机对于本数字式复印机的图像打印输出而言， 其复印和排 纸速度虽然较光鼓式复印机慢， 但其性能价格比是光鼓式复印机所无法比 拟的.
面板选项输入机构 14用于控制复印性质， 例如可有四种选项， 其中 第一选项为复印模式选择， 包括修改模式和复印模式， 当选择修改模式 时， 其原件的图像即可输入到图像编辑计算机 13 , 以备修改之用； 当选 择复印模式时， 就会被认为无需再处理原件， 此时数字式复印机就不需按 替换页 (细则第 26糸) 一帧读取和存贮， 而可按扫描行同步进行打印输出， 以提高复印速度. 第 二选项为灰度选择， 可提供 64 级灰度， 足以满足中、 高级台式扫描仪及 激光打印机等对灰度的要求. 选项三、 四为复印缩、 放选择， 例如可按 2 %的比例递增或递减.
微处理器 26(如 8951)、 第一译码器 27、 第二译码器 28和选项输入键
29、 数值输入键 30构成面板选项输入机构 14 . 微处理器 26输出控制扫 描输入机构 11、 图像编辑计算机 13、 图像打印输出机构 15、 第一、 二数 据存储器 21 、 22和第一、 二、 三选通门 23、 24、 25工作的信号， 选通 门作为接口电路工作.
当操作者将原件置于扫描机构 11上， 按动面板输入选项一 (29 、 30) 选择复印模式后， 使数字式复印机进入复印状态， 此时数字式复印机的扫 描执行机构 I I便会在微处理器 26(8951)的控制下，按行将原件的图像转化 为数字信号并存储在扫描数据存储器 21 内， 由于在选项搡作时， 微处理 器 26已将选通门 24打开并同时关闭选通门 23，因此图像数据可直接进入 打印数据存储器 22内， 在微处理器的控制下， 打印输出机构 15就会按其 所存贮的图像数据将图^ £原打印出来. 同理， 若选择修改模式， 微处理 器 26会关闭选通门 24 , 并同时打开逸通门 23 , 使图像数据输入到图像编 辑计算机 13 内， 以备操作者对图^ ^行再处理， 当需要还原该处理过的 数据时， 可告知微处理器 26将选通门 25打开并将图像数据传送给打印数 据存储器 22 , 供还原打印图像， 而此时选通门 23、 24均关闭.
通过对数字式复印机工作原理的描述， 可归纳出幅面、 速度、 分辨率 等是衡量数字式复印机品质的参数， 可参考光鼓式复印机对比.
数字式复印机具有高品质的复印效果， 在印刷、 电子、 金融、 公安及 国防等领域将会具有不可估量的价值。
对本领域技术人员而言， 按本发明的数字式复印机还可有各种改型、 改进和变化， 但这些改型、 改进和变化均不会脱离本发明权利要求书所限 定的范围.
替换页 (细则第 26条)

Claims

权利要求
1 、 一种数字式复印机， 包括图像扫描输入机构 (11)， 用于将复印原 件图像扫描转化为数字信号； 图像打印揄出机构 (15)用于将图像数据打印 还原成图像； 面板选项输入机构 (14)， 用于控制复印性质， 其特征在于， 所说复印机还包括图像编辑计算机 (13), 用于将图像数据进行二次加工编 辑处理；在图像扫描输入机构 (11)与图像打印输出机构 (15)之间连接有图像 数据存储器 (12), 用于暂存图像数据； 以及， 所述面板选项输入机构（14) 可依据选项将输出的各逸通控制信号分别输入到所述的图像扫描输入机 构 (11)、 图像编辑计算机 (13)、 图像打印输出机构 (15)和图像数据存储器 (12) 或分别输入到所述的图像扫描输入机构 (11)、 图像打印输出机构（15)和图像 数据存储器 (12).
2、 根据权利要求 1 所述复印机， 其中， 所述图像数据存储器 (12)包 括第一数据存储器 (21)、 第二数据存储器 (22)、 第一选通门 (23)、 第二选通 门 (24)和第三选通门 (25), 所述第一数据存储器 (21)的输入端接所述扫描输 入机构 (11)的输出端， 所述第一数据存储器 (21)的输出端并接第一、 第二选 通门 (23 、 24)的输入端， 所述第一选通门 (23)的输出端并接所述图像编辑 计算机 (13)的输入 /输出端和第三选通门 (25)的输入端， 所述第二数据存储 器 (22)的输入端并接第二、 第三选通门 (24、 25)的输出端， 所述第二数据 存储器 (22)的输出端接所述的图像打印输出机构 (15)的输入端.
3、 根据权利要求 1所述的复印机， 其中， 所述的面板选项输入机构 包括微处理器 (26)、 第一译码器 (27)、 第二译码器 (28)、 由复印模式或灰度 选择模式或缩小模式或放大模式构成的选项输入键 (29)和在各选项模式中 作复印或修改、 灰度等级、 放大比例、 缩小比例选择的数值输入键 (30); 所述第一、 第二译码器 (27 、 28)的输出端接所述的微处理器 (26)的输入 端， 所述选项输入键 (29>¾第一译码器 (27)的输入端， 所述数值输入键 (30) 接第二译码器 (28)的输入端， 所述微处理器 (26)输出所述的选通控制信号.
替换页 (细则第 26条)
PCT/CN1997/000010 1996-02-14 1997-02-06 Copieur numerique WO1997030417A1 (fr)

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CN 96101056 CN1090356C (zh) 1996-02-14 1996-02-14 数字式复印机

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CN1307590C (zh) * 2003-11-21 2007-03-28 明基电通股份有限公司 影像打印方法及相关装置
KR100739119B1 (ko) * 2005-07-26 2007-07-13 삼성전자주식회사 전자앨범 화상형성장치

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EP0505916A2 (en) * 1991-03-25 1992-09-30 Sharp Kabushiki Kaisha Digital copier

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002019038A2 (en) * 2000-08-30 2002-03-07 3M Innovative Properties Company Graphic base construction, retroreflective graphic article made therefrom and method of making
WO2002019038A3 (en) * 2000-08-30 2003-03-13 3M Innovative Properties Co Graphic base construction, retroreflective graphic article made therefrom and method of making

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CN1172310A (zh) 1998-02-04
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