Invention Grant
US08400659B2 Image forming apparatus with dedictated transmission line that connects the control unit and the engine unit and features a power mode signal
有权
具有致动传输线的图像形成装置，其连接控制单元和发动机单元并具有功率模式信号
- Patent Title: Image forming apparatus with dedictated transmission line that connects the control unit and the engine unit and features a power mode signal
- Patent Title (中): 具有致动传输线的图像形成装置，其连接控制单元和发动机单元并具有功率模式信号
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Application No.: US12545411Application Date: 2009-08-21
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Publication No.: US08400659B2Publication Date: 2013-03-19
- Inventor: Jun Sasaki
- Applicant: Jun Sasaki
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Limited
- Current Assignee: Ricoh Company, Limited
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2008-238678 20080917
- Main IPC: G06F3/12
- IPC: G06F3/12
Abstract:
In an MFP, a system controller is connected to an engine via a universal transmission line and a dedicated transmission line. When MFP is powered, the system controller sends a mode signal to the engine via the dedicated signal line. If the mode signal indicates that the power mode is to be set to a normal mode, the engine activates predetermined components. The system controller and the engine then establish communication via the universal bus. After establishing the communication, if the mode signal indicates that the power mode is to be set to a mode other than the normal mode, the system controller sends a setting command to the engine via the bus to set the power mode to any of a plurality of power-saving modes.
Public/Granted literature
- US20100067043A1 IMAGE FORMING APPARATUS Public/Granted day:2010-03-18
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