Ricoh FW780 Service Manual - Page 277
Fd = Light Sensor
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Service Tables SERVICE TOOLS Mode No. Synchro-cut Length Auto Adjustment (1,189 mm) -36 Function Adjusts the original cut length in Synchro Cut mode at 1189 mm. Insert the 1189 mm length original five times (this number displayed on the copy number indicator can be changed : 1 to 10). If the actual original length is different from the standard length, input the following value in the cut length indicator before inserting the original: Data -50 ← 0 → 50 1 step = 0.1 mm Actual Length - Standard Length -37 Not Used Synchro-cut Length Manual -38 Adjustment (297 mm) Synchro-cut Length Manual -39 Adjustment (1,189 mm) Light Sensor Voltage Display (Factory use) -62 Synchro-cut Rear Feed Mode -70 Then the machine automatically calculates the correction value. The data is overwritten on SP#-39. Adjusts the synchro cut length when a 297 -9.9 ← 0 → 9.9 mm original is used. Increasing the number 1 step = 0.1 mm will shorten the paper cut length. (This value is over written when SP#-35 is performed.) Adjusts the synchro cut length when a 1,189 -50.0 ← 0 → 50 mm original is used. Increasing the number 1 step = 0.1 mm will shorten the paper cut length. (This value is over written when SP#-36 is performed.) Displays the real time light sensor output Fd = X,XX voltage. Fd = Light Sensor In this mode, the PTL, main motor, QL and Voltage the bias voltage for non-image areas can be turned on and off using the Copy Media key. Translucent paper = ON Translucent Film = OFF Even if the SP mode is canceled, the voltage is displayed during the stand-by condition or copy cycling. To release this condition, turn the main switch off and on. Normally, an original cannot be inserted 0: Normal from the rear side in Synchro-cut mode. If 1 1: Synchro-cut Rear is selected in this mode, an original can be Feed Mode inserted from the rear side even if Synchro- cut mode is selected. This mode cannot be used with the trailing edge margin function. In this mode, the copy will be 194 mm longer than the original (A252 copier only). SM 4-7 A251/A252