Request to Imaging Equipment Standard criteria on next version about EP products JBMIA Copier-MFD Technology WG JEITA Printer Energy Saving WG 1
Improvement Overview from Ver1.0 to Ver2.0 Criteria have been revised twice, actual TEC values greatly improved. Particularly Ver2.0 criteria are so severe for monochrome products that further improvement is hardly possible. 2
Technical limit of EP method TEC measurement pattern The image part with relationship ID rId2 was not found in the file. Job1 Job2/3/4 pattern pattern Old technology once for morning /noon 6~30 times Twice/day according to ipm Always pre-heat required Job Energy + ready Energy Ｊｏｂ１ Ｊｏｂ２，３，４ New パターン パターン Polymerized Toner + ASIC Technology realizes red spec. Ｃｏｐｙ Ｃｏｐｙ =Top Runner (limit) Ｒｅｃｏｖｅｒｙ Ｆｉｎａｌ No Final Ｒｅａｄｙ１分 1min Ｒｅａｄｙ１分 1min Ｅｎｅｒｇｙ Energy は無い 1~2W 1~2W 1~2W Ｓｌｅｅｐ１Ｗ台 Ｓｌｅｅｐ１Ｗ台 Ｓｌｅｅｐ１Ｗ台 contributing （ enormous cost ） （ enormous cost ） factor ASIC development for sleep energy saving Low-heat-capacity fuser + low melting-point toner （ Proprietary tech: polymerized toner / crashed （ Needs customization for each small-diameter toner ） model; no common tech. ） 3 3
Technical approach of TEC improvement Actual picture image of TEC testing data corresponding to illustrations on the previous page. TEC testing figure Job1 figure 4
History of power reduction in Sleep mode 1. Power off of non-active area 2. Main CPU off (separation of LAN connection) Efficiency module Further Power ② unit fuser ③ Separation of network-connection-function from high- ① speed main CPU, which consumes significant power, by way ① Power off only for fuser unit of network-control LSI, realizing energy-saving. ② Power off for other units, other than network controller Sleep Power Reduction ◆ Technical hurdle ・ ASIC development – resource investment 35 ・ Retarded recovery time – system initialization Pow ower on on engine pa part, Only chip remains, 30 further reduction is difficult. ・ Efficiency of power unit – high efficiency for Power er o off onl nly f fus user er unit unit. Sleep Power (W) 25 low power output 白黒複写機 mono copier 20 Pow ower on on networ ork c con ontroller, 白黒複合機 mono MFD In these ten years Sleep power 15 Pow ower of off ot other c com ompon ponent. color MFD カラー複合機 has been improved greatly. After 10 achieving ~1W, there is no other 5 power source, meaning this is the Power er o on n chi chip, 0 limit. Power o Po off exc xcept a a part o of 1998 2003 2008 network co net cont ntroller Fiscal year 5
Lowering toner melting temperature Big improvement in (example) manufacturing method (break through) Crash toner (conventional toner) Emulsion polymerization (capsule toner) smaller particle diameter improvement of diameter distribution （ remove too big / too small particles ） 6
Lower ering ng t toner ner mel elting ng tem emper eratur ure Toner viscosity change vs. temperature EA-Eco toner with an abrupt change of viscosity against temperature lowers the minimum fusing temperature by 20~50 degrees centigrade. However, this needs enormous investment on production plant etc. 7
Distribution of MFD TEC data After introducing technologies shown in the preceding pages, the top TEC values of monochrome and color products stay almost at the same level. This shows that EP method has encountered its technological limit. 8
Summary Success! ENERGY STAR has driven tremendous energy savings! Concern For top-runner products; there’s no where to go, but these are now very efficient products. 9
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