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Agilent Technologies Introduces High-Resolution Optical Encoders for Home and Office Printers, Scanners


Devices Meet User Demand for Higher Quality Graphics

Böblingen, Germany, 03-06-2004 - Agilent Technologies today introduced two high-resolution optical encoders designed to increase the performance of home and office printers and image scanners. With the increasing interest in digital photography and other graphic-intensive applications, consumers expect higher quality graphic performance from today's mid- to high-end printers, copiers and scanners. The new encoders from Agilent's Semiconductor Products Group offer this higher resolution with the size needed for high-volume printers.

Optical encoders detect the position, speed and direction of components such as print heads in inkjet printers, imaging drums and rollers in laser printers and photocopiers, and scan heads in optical scanners. Greater precision in detecting these parameters results in higher quality printing and higher resolution scans.

Agilent's HEDS-973X-350 optical encoder offers a digital output with 480 LPI (lines per inch) resolution, matching the highest resolution provided by any manufacturer for office automation applications. Agilent's HEDS-971X-150 is an analog-output encoder providing 360 LPI resolution, higher resolution than any analog encoder designed for office automation applications. The HEDS-971X-150 delivers an effective resolution of up to 1,440 LPI when used with external interpolation techniques.

The HEDS-971X-150 operates over the +15 C to +45 C temperature range and requires only a single 5V supply. The HEDS-973X-350 operates from -40 C to +85 C and can run off a 3.3V up to 5V supply. Both versions feature a 40 kHz frequency count, making them compatible with high-speed operation. The encoders are supplied in a lead-free module with dimensions of only 20.2 mm by 12.6 mm by 10.8 mm. Combining a highly collimated light source and a unique photodetector array, the module is extremely tolerant to mounting misalignment. The standard modules are designed for use with an 11 mm optical radius code wheel or linear code strip.


The Agilent HEDS-973X-350 and HEDS-971X-150 optical encoders are available now through Agilent's direct sales channel and worldwide distribution partners.

Further information about Agilent's motion control products is available at