Design and Development

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Reducing power consumption in printer Standby mode

At Epson, we use total power consumption (Wh/day) as an indicator to measure the energy-saving performance of printers, and we use this indicator as we look for new ways to improve our designs. One effective way to improve an inkjet printer's energy performance is to reduce the amount of power consumed in standby states (warm-up and sleep modes), as this accounts for a large percentage of its total power consumption.
The Expression Premium XP-610 is equipped with a power-saving SOC (System-On-a-Chip) that enables approx. 57% lower power consumption than the Artisan 730.

Reduction in total power consumption for inkjet printers

Reduction in total power consumption for the inkjet printers

The evaluation conditions
These values are based on evaluation conditions used at Epson. 115V is used for calculation, based on U.S. specifications. These were calculated as 5 sheets of A4 color documents copied or printed/day, with 1 day defined as 8 hours with the power on and 16 hours with the power off. Power consumption will vary according to the customer's printer usage

Reduced power consumption that accommodates usage by customers

Epson has been increasing the brightness of its projectors while continuing to reduce their power consumption by improving light use efficiency. 3LCD projection technology uses light efficiently to create brilliant images. In contrast to 1-chip technology, 3LCD requires 25% less electricity per lumen of brightness. Power consumption per lumen

Power consumption per lumen

*Weighted average of the sales volume for each product for each year (100V, 2000 - 3000lm)

Providing power-saving features that reflect actual use

Epson projectors feature innovations that reduce power consumption during normal use.

sliding lens cover

For example, our desktop projectors have a sliding lens cover that, when closed, automatically pauses a presentation and puts the projector in a low-noise standby mode. The presentation can quickly resume as soon as the cover is reopened.

Ceiling-mounted projectors always have a power cable connected. To reduce power consumption when these projectors are not being used, we re-engineered the power supply, adding a specialized circuit to reduce standby power consumption to less than 0.5 W in our new products starting in 2010. These improvements meet the regulations targeted for 2013 as stipulated in Lot 6 of the EU's ErP Directive*.

* EU directive that requires environmentally considerate design for energy-related products.

Reduced power consumption of scanner with the use of LED light sources

The WorkForce DS-70000 is an A3 flatbed scanner that Epson released in 2012. It uses a white LED for the light source instead of a xenon fluorescent lamp like Epson's earlier heavy-duty business scanners. The DS-70000 consumes approximately 88% less power in sleep mode than the GT-20000, yet provides the same advantage as the xenon lamps: zero warm-up time. The scanner also has a Sleep button that allows the user to immediately put the unit in a low-power state. The LED light source is able to instantaneously provide the amount of light necessary for scanning, even after being woken up from Sleep mode. Offering both the convenience of Sleep mode and excellent energy efficiency, the DS-70000 not only saves office users money but puts less stress on the environment.

Reductions in power in various modes

Reductions in power in various modes

A proofing inkjet printer equipped with the industry's first water-based white ink

The Epson Stylus Pro WT7900 boasts the industry's first water-based white ink. Epson's newly developed white ink is made using special hollow resin particles. As all of the ink colors are water-based, they are low-odor, which also makes them suitable for office environments. In addition, these inks help save energy because, unlike their solvent-based or UV-curable counterparts, there is no need for heaters, lamps, or ventilation equipment. Epson inks enable a low environmental impact and efficient proofing process.

Advantages of using water-based inks

Reduction of total power consumption by electrophotographic page printers

The Epson AcuLaser C1750N and C1750W compact A4 color laser printers (launched in 2011) achieved a typical electricity consumption (TEC) value of 1.38 kWh. The new, energy-efficient design consumes 71% less electricity per week than the AcuLaser C1100 and C1100N models launched in 2005. Additional improvements include greatly reduced operation noise of only 49 decibels and a suction cooler that eliminates unpleasant exhaust ports. Now you can save electricity and enjoy a more comfortable office environment.

Reduction in total power consumption per week for AcuLaser C1750N/ C1750W

Reduction in total power consumption

The evaluation conditions
These are Typical Electricity Consumption (TEC) values, based on measurement methods stipulated by the International Energy Starツョ Program. 230V is used for the AcuLaser C1750N/ 1750W, based on European specifications.

Reduction of total power consumption by thermal receipt printers

The thermal receipt printer TM-T88V supplements superior business printer functionality with environmental performance. Launched in 2010, it achieves high-speed printing of up to 300 mm/sec., yet uses 14% less power than the previous model (TM-88IV), and approximately 85% less than the TM-T88II launched 12 years ago in 1998*. Total power consumption is further reduced with a high-efficiency AC adapter and the use of a low-power ASIC chip that supplies power only when and where needed.

Reduction in total power consumption per day for TM-T88V

Reduction in total power consumption per day for TM-T88V

The evaluation conditions
Figures calculated under Epson's test conditions, assuming 300 receipts per day, with the power on 16 hours/day and off 8 hours/day. 230V is used for the TM-T88V, based on European specifications. Power consumption will vary according to actual usage conditions.
* These are reference values because the power consumed by the TM-T88II and TM-T88III when printing receipt patterns varies slightly.

SG-8003CE series programmable crystal oscillators

The SG-8003CE series supports supply voltages as low as 1.8V and 2.5V and frequencies up to 166MHz. They also consume 50% less current than their predecessors, the SG-8002CE series.


Current consumption

The evaluation conditions
Comparison at 125MHz, Operating Voltage of 3.6V, and No Load

Low-power GPS solar watch

Epson developed the world's first GPS solar watch. This impressive timepiece quickly captures satellite data to pinpoint its location and current time zone anywhere on the planet. The solar panel eliminates the need for an external charger, and the ability to obtain accurate time anywhere and any time is made possible by a newly developed GPS module designed for low-power, compact, high-precision solar watches. The new module uses only one-fifth the power of Epson's older models.

*This product was launched in 2012 by Seiko Watch Corporation.

Seiko Astron GPS Solar. The World's First truly global watch.No part of the planet is beyond the reach of the GPS satellite network.

GPS solar watch construction

Better Products for a Better Future

At Epson, we know that planning for the future requires a strong commitment to the environment. That is why we strive to create innovative products that are reliable, recyclable, and energy efficient.
Better products that use fewer resources help ensure a better future for us all.

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