HP Deskjet 3420

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The HP Deskjet 3420 is an all-in-one inkjet printer introduced by HP targeting home and small office users. It supports printing, scanning, and copying functions, providing multifunction capabilities within a compact design. The device uses HP thermal inkjet technology with drop-on-demand capabilities for fine ink placement. It supports print resolutions up to 1200 x 600 optimized dpi in color and up to 1200 x 1200 dpi in grayscale. The printer connects via a parallel port interface, as USB was not standard at the time. Paper input capacity is around 100 sheets with basic manual duplex support unavailable.

The scanning component is a flatbed scanner capable of up to 600 dpi optical resolution. It features HP's Quick Apps technology for easy one-touch operation for tasks such as copying and scanning. The device supports various standard document sizes including Letter and Legal. It is compatible mainly with Windows and Mac OS systems prevalent during the early 2000s.

The HP Deskjet 3420 offers integrated multifunction capabilities (print, scan, copy) which reduce the need for multiple devices.

Its compact footprint helps save space in small office environments.

High resolution printing and scanning provide reasonably good output quality for its class.

Quick Apps technology enhances usability by simplifying common operations.

Supports multiple paper sizes and offers borderless printing for photos.

Energy Star compliant which reduces power consumption during idle modes.

The device lacks modern connectivity options such as USB or wireless interfaces, relying on the older parallel port standard.

Print speed is relatively slow compared to contemporary models, taking over a minute for color pages.

It does not support automatic duplex printing which limits efficiency for double-sided documents.

The ink cartridges have limited page yields leading to frequent replacements.

Mac OS and Windows driver support are limited to older versions, causing compatibility issues on modern operating systems.

The scanner's color depth and resolution are modest by today's standards, limiting graphic fidelity.

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