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Ricoh Group Sustainability Report 201263
Sustainable Environmental Management
Energy Conservation and Prevention of Global Warming
We are working to reduce our total lifecycle CO2 emissions by 30%
from the 2000 level by 2020. We are particularly focused on reducing
environmental impact associated with the use of our products by
customers, which is the stage of the product life cycle with the largest
impact on the environment. At the same time, we are working to
reduce CO2 emissions associated with production activities primarily
through innovating production processes, aiming at both cost and
environmental impact reduction.
Launching products boasting outstanding
energy efficiency performance
imagio MP C5002/C4002/C3302/C2802
Featuring Ricoh’s proprietary technologies, including Color QSU1
technology (direct heating (DH) fixing system) and color PxP-EQ toner
with a lower melting point, imagio MP C5002/C4002/C3302/C2802
(color MFPs released in February 2012) have reduced their typical
electricity consumption (TEC)2 substantially and achieved best-in-class
environmental performance. We reduced the typical electricity
consumption (TEC) of imagio MP C5002 SPF by 22% compared to that
of the previous model and also achieved a recovery time of 9.1 seconds3
from the sleep mode.
1. QSU: Quick Start-Up
2. Measured according to the guideline set by the International ENERGY STAR Program
3. In the case of imagio MP C5002: 9.1 seconds; imagio MP C4002: 9.3 seconds; imagio MP C3302/
C2802: 7.8 seconds
* The performance data shown here is for the imagio MP C5002/C4002/C3302/C2802 model MFP
available in Japan. The proprietary technology used to achieve these results, Ricoh’s Color QSU
Technology and PxP-EQ toner using Direct Heating System, are also used in the Aficio MP C5502/
C4502/C3502/C3002 model outside of Japan.
The fusing unit has a substantially lower heat capacity due to the smaller diameter and
thinner wall of the fusing roller (belt). The unit also has a higher heat-transfer efficiency
since a heater located inside the roller heats the roller (belt) directly.
The fixation temperature is lower by around
30˚C compared to that of the color PxP toner
when it was first released in 2004. To achieve
a lower fixation temperature as well as stable
quality at a higher temperature during storage,
the toner is designed to remain unchanged until
reaching the fusing temperature, whereupon it
immediately melts.
Improved ductility (spreading
ease) of the toner has made
uniform image formation
possible with a small mass of
deposit per unit area on the
uneven surface of paper fiber,
resulting in a more natural and
reader-friendly image quality.
Energy-saving technologies (1): Color QSU (Direct Heating (DH)
Fixing System)
Efficient heating of fusing rollers
Energy-saving technologies (2): Color PxP-EQ toner
Lower fusing point and excellent image quality that is more
natural and easy to read
Our approaches to reduce environmental impact
associated with the use of our products by customers
We develop many energy-efficient products and offer them along with solutions and services that
facilitate a new work style with enhanced operational efficiency and lower environmental impact.
Through such efforts we help customers reduce environmental impact.
Fixing pad
Despite the small size of the
roller, the pad allows the
contact width between
paper and the roller to be
maintained at a
predetermined level.
Fusing roller (belt)
Thinner wall and smaller diameter results
in a shorter warm-up time
Halogen heater
Directly heating the fusing roller (belt)
Pressure roller
Lowering of color PxP toner melting point
Launched in
2004
Launched in
2007
Launched in
2010 (black)
Color PxP-EQ
toner
Progress in the lowest toner fixation temperatures
-20ºC
-30ºC
-10ºC
Toner taken thinly and uniformly
Paper Toner
www.ricoh.com/about/company/technology/tech/042.html
www.ricoh.com/about/company/technology/tech/043.html
WEB
2.34 kWh
3.01 kWh
0 1 2 3 kWh
imagio MP C5002 SPF
Previous model
(imagio MP C5001 SPF)
Reduction
by about 22%
* Assessed by Ricoh
0 300 600 900 1,200
■
Ricoh Group lifecycle CO2 emissions from business activities
Process in which the Ricoh Group
has indirect impact
Process in which the Ricoh Group
has direct impact
Product use (paper and
electricity consumption)
Material/parts procurement
Logistics/transport
Development/design/
manufacturing/marketing
(thousand tons of CO
2
)
Increased environmental
impact at customers’ offices
and other sites