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The color laser jet CP2025n can connect to multiple computers of a wired network, and the printer produces high-quality prints.

This attractive laser printer measures 12.7 inches tall by 15.9 inches wide by 25.9 inches deep. This printer is not easy to move as it weigh about 50 pound. The front control panel houses a small two-line black lit LCD for alerts and toner level graphics, a left and right directional pad, a cancel button, and two LEDs to alerts users of low toner and print errors. All of the ports necessary to connect the printer to a computer are on the back of the device, including the power plug, a USB port, and an Ethernet jack for wired networking among several computers. HP contains a black and color laser print cartridges in the box. A black cartridge with a 3,500-page life span costs $123, while the color version is $121 for 2,800 pages. The HP is quick to print color text and color graphics at 8.31 and 13.56 pages per minute respectively.

The cheap CP2025n makes a more consistent argument for compelling output quality rather than speed. Both black graphics and color spectrums of this cheap printer appear to be solid and well formed with crisp lineation and clean edges. As expected, the black toner produces slightly more visually appealing text in smaller fonts than the color toner, but this printer remains true to the quality we expect from a professional laser.

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Method of normality decision with regard to ink cartridge and printer actualizing the method Claims

What is claimed is:

1. A printer, to which an ink cartridge having a storage unit is detachably attached, the printer comprising: a reading unit reading a piece of ink related information indicating a month of manufacture of the ink cartridge, wherein the piece of information has been registered in advance in a predetermined format, from the storage unit; and a decision unit identifying whether the read-out piece of ink related information satisfies the predetermined format, so as to determine whether the storage unit is normal or whether the storage unit is not normal if the read-out piece of ink related information has been destroyed, wherein the predetermined format is four-bit data, and the decision unit determines that the storage unit is not normal when the ink-related information has a predetermined value.

2. A printer according to claim 1, wherein the predetermined value is one of 0000 and 1111.

3. A method of determining whether a storage unit included in an ink cartridge is normal, wherein the ink cartridge is configured to be detachably attached to a printer, the method comprising the steps of: (a) reading a piece of ink related information indicating a month of manufacture of the ink cartridge that has been registered in advance in a predetermined format, from the storage unit; and (b) identifying whether the read-out piece of ink related information satisfies the predetermined format, so as to determine whether the storage unit is normal or whether the storage unit is not normal if the read-out piece of ink related information has been destroyed, wherein the predetermined format is four-bit data, and the identifying step determines that the storage unit is not normal when the ink-related information has a predetermined value.

4. A method according to claim 3, wherein the predetermined value is one of 0000 and 1111.

5. A computer readable recording medium, on which a specific computer program is recorded, the specific computer program being used to determine whether a storage unit is normal, wherein the storage unit is included in an ink cartridge that is detachably attached to a printer, the specific computer program comprising: a program code that causes a computer to read a piece of ink related information indicating a month of manufacture of the ink cartridge, wherein the piece of ink related information has been registered in advance in a predetermined format, from the storage unit; a program code that causes the computer to identify whether the read-out piece of ink related information satisfies the predetermined format; and a program code that causes the computer to determine that the storage unit is not normal in the case where the read-out piece of ink related information does not satisfy the predetermined format if the read-out piece of ink related information has been destroyed, wherein the predetermined format is four-bit data, and the computer code causes the computer to determine that the storage unit is not normal when the ink-related information has a predetermined value.