ریکوRicoh FT3713
11 Exposure lamp open
12 Exposure lamp stays on
12 Zero cross. Main board or DC power supply
21 Scan home problem (did not return home)
22 Scan home problem (did not leave home)
28 Lens home problem (did not get home)
29 Lens home problem (did not leave home)
2A Mirror home problem (did not get home)
2B Mirror home problem (did not leave home)
40 Optics thermistor open
52 Low fuser temperature. Lamp, thermal switch, thermistor
53 High fuser temperature. Themistor, AC driver, pinched wire
55 Fuser thermistor open
70 Waste toner. 80K copies or 9 toner cartridges have been run. Reset with SP mode 83.
96 Document feeder drive problem
U2 User code. key counter not installed.
E1 Exposure lamp
E2 Scan
E5 Fuser
E6 Drive
E7 Toner waste is full
U3 Developer unit is not installed
U5 Add fuser oil
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