43967002TH Rev.1 45 /Oki Data CONFIDENTIAL 2. Theory of Operation2.3.1.3 Fundamental operationsDrive force transmission diagramThe MFP is a document feed device of skim reading only. The MFP uses the two motors fordocument feed and document transport.Name (symbol) F unctionTransport motor (M1) It transports document.Feed paper motor (M2) It separates and transports document.[1]ADF driver circuit PCB [2] Document detection signal[3] Document detection signal [4] Feed paper motor dive signal[5] Document detection signal [6] Stamp solenoid drive signal[7] Document set signal [8] Transport motor drive signal[9] Separator solenoid drive signal [10] Final document detection signal[11] Paper size (width) detection signal 1 [12] Paper size (width) detection signal 2[13] Paper size (length) detection signal 1 [14] Paper size (length) detection signal 2[15] Relay circuit PCB(READ)CN8-6(REG)CN8-3(EMPTY)CN9-3(EXIT)CN8-9CN11CN4(LAST)CN7-3PI5PI4PI8PI11PI3PI7PI62[1][2][3][7][5][4][8][6][9][13][14][10]PI2 [11]PI1 [12][15]Drive force diagram of the MFP is shown below.Overview of operation modesThere are four operation modes that are executed by the MFP. The respective operationmodes are executed in accordance with the instructions given by the connected equipmentto implement the print operation.Name of the operation modes, the overview of the operation and the corresponding printmodes are shown in the following table.Name of the operationmodesOverview of the operation Supporting print modes[1] Normal direction feedpaper/Unload paperDocument is fed andscanned. Upon completionof scan, document isunloaded as it is.Single-sided document => Single-sided printSingle-sided document => Both-sided print(This operation is performed in both caseswhen documents of same width anddifferent width are used.)[2] Normal direction feedpaper/ Inverted unloadpaperDocument is fed andscanned. Upon completionof scan, document isinverted and unloaded.Both-sided document => Both-sided printBoth-sided document => single-sided print(This operation is performed in both caseswhen documents of same width anddifferent width are used.)Normal direction feed paper and unload paper (single-sided document => single-sided print) operationOutline of document flow is shown below.Supplement: When a single-sided document is selected, this operation is performedregardless of the same size mixed documents or different sizes mixeddocuments.DocumentFeed paperLoop creationScanningUnload paperScanning standby Job end