Functional Overview

Soft Power-Off Switch

There is a power-off switch on the front panel to switch OFF the product in a controlled way.

When the switch is actuated the firmware turns off several subsystems and stores information about the product in the EEROM, then it grounds the soft power off signal to the PSU to switch off the product. The main goal of the soft power off switch is to improve the reliability of the product powering off the systems and putting the product in a known state before the power off condition.

Front Panel

The user can interact with the printer in two ways: from the host via the I/O channels or directly via the front panel. The front panel is used to display messages (like the status of the machine or warnings), to configure the printer (like setting the print quality or defining the palette) and to send commands to it (cancel the job or print a demo for example). It is important to recognize that the configuration settings that can be sent with the header of one plot will apply just to that plot and won’t override the front panel settings for subsequent plots.

The front panel module has an LCD display, 10 keys, 6 leds and one beeper.

The front panel display is a 128 x 64 pixel graphic LCD. Every pixel can be activated individually and the controller present on the front panel board allows us to have both text and graphics at the same time on the display. The display has an LED backlight to improve its viewing characteristics. The backlight can be turned ON and OFF by the software. The contrast of the LCD can also be adjusted.

The keys are distributed in four groups:

2 keys at the bottom left corner are used to select the Print Quality (Best, Normal or Fast) and Color/Grayscale printing. The LEDs on top of the keys show the selected option.

2 keys at the top left part are used to send commands directly to

nthe printer: Cancel and Form Feed and Cut.

5 keys to the right of the display are used to navigate through the

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HP DesignJets 1050C and 1055CM Printers Service Manual

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HP 1055CM manual Soft Power-Off Switch, Front Panel, Printer Cancel and Form Feed and Cut
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1055CM specifications

The HP 1055CM is a large-format printer that stands out in the world of professional printing due to its exceptional capabilities and advanced technologies. Launched as part of HP's Designjet series, the 1055CM is designed to meet the needs of architects, designers, and engineers who demand high-quality output in a variety of applications.

One of the main features of the HP 1055CM is its impressive printing speed. The printer can produce high-quality prints at resolutions up to 1200 dpi, ensuring sharp and vibrant details in every project. This makes it particularly suitable for printing technical drawings, schematics, and high-fidelity graphics. Its ability to work with a range of media types, including bond paper, coated paper, and glossy media, further enhances its versatility in a professional setting.

The HP 1055CM employs a 5-color ink system, which includes cyan, magenta, yellow, black, and light cyan. This configuration allows for a wide color gamut and the production of rich and vibrant colors, making it ideal for color-intensive tasks like marketing materials or presentations. The use of dye and pigment-based inks ensures that prints are not only vibrant but also durable, providing resistance to fading over time.

An important technological advancement in the HP 1055CM is its Print Designjet series technology, which facilitates rapid print processing. The printer's powerful processing capabilities allow it to handle complex files with ease, ensuring that users can produce high-quality output without long wait times. Additionally, the inclusion of a high-capacity media roll means that the printer can handle large jobs without frequent media changes, reducing interruptions in workflow.

Another characteristic of the HP 1055CM is its ease of use. The printer features a user-friendly interface with intuitive controls, allowing users to quickly access various functions and settings. Connectivity options, including USB and Ethernet interfaces, make it easy to integrate the printer into any existing network infrastructure, enabling multiple users to access its capabilities seamlessly.

In summary, the HP 1055CM is a robust and reliable printing solution that combines speed, versatility, and high-quality output. Its cutting-edge technologies and user-friendly design make it an invaluable asset for professionals who require precision and excellence in their large-format printing tasks. Whether for architectural plans or vibrant marketing materials, the HP 1055CM consistently delivers outstanding results.
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