Ricoh FW780 Service Manual - Page 391
A = Toner Sensor Voltage, LE = X, XXX
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Service Tables SERVICE TOOLS Mode No. Length Size Magnification Compensation on Leading Edge -28 Registration Adjustment for the Rear Feed -29 Toner Density Sensor Voltage Setting -30 Toner Sensor -31 Voltage Display (Last Copy) Toner Sensor Voltage Display (Real Time) -32 -33 Not Used to -34 Function The fusing roller's speed is slightly higher than the drum speed. The speed of the copy paper transport will increase slightly after the leading edge of the copy paper enters the fusing unit. To compensate for this, the speed of the original feed motor is corrected from the leading edge to 183 mm (B048 copier only). Adjusts the paper registration for the rear original feed (B048 only). If the setting of SP#-74 is 1, this setting is used for the paper registration for the front original feed as well as the rear original feed. In this case, this adjustment is automatically set for the SP#-5 adjustment. Changes the toner density sensor voltage. Normally, the value is automatically adjusted when the new developer initialization (SP36) is done. In this mode, PTL, main motor, QL and the bias voltage for non-image area can be turned or and off using the Copy Media key. Data -100 ← 10 → 100 Shorter Longer -2.5% +2.5% 0: Standard -9.9 ← 0 → 9.9 mm Advance Delay 80: Standard 50 ← 80 → 120 Low High Translucent paper = ON Translucent Film = OFF Displays the toner sensor output voltage for the last copy. A = X,XX (Beeper) Displays the real time toner sensor output voltage. In this mode, the PTL, main motor, QL and the bias voltage for non-image areas can be turned on and off using the Copy Media key. Translucent paper = ON Translucent Film = OFF When this SP mode is canceled, the voltage will be continually displayed during the copy cycle and in standby mode (the toner sensor output voltage, paper length and copy counter are displayed one at a time). To stop this, turn the main switch off and on. A = X,XX A = Toner Sensor Voltage During the stand-by condition, and copy cycling the following data is displayed. A = X,XX ↓ LE = X,XXX ↓ CO = XX ↓ (Beeper) LE = Paper Length (ex. 297 mm: LE=0.297 12 inch: LE=0.120) CO = Copy counter SM 4-17 B047/B048