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Xerox WorkCentre 222
Troubleshooting. LIST OF MALFUNCTIONS
Polygon Motor malfunction
- The LOCK signal is not detected within a predetermined period of time that begins 1 sec. after the Polygon Motor has been energized. • No new LOCK signal is detected for a 1-sec. period that begins 1.5 sec. after the first LOCK signal was detected.
- The LOCK signal is not detected for a continuous 0.5-sec. period in a state in which the Polygon Motor runs stably.
- The LOCK signal remains ON for a continuous 5-sec. period or more when the Polygon Motor remains deenergized.
Laser malfunction
- The laser output exceeds the upper limit value.
- The laser output remains lower than the lower limit value.
- The Start Scan signal (-S_SCAN) is not detected at all within a predetermined period of time after the laser has been turned ON.
- The Start Scan signal (-S_SCAN) is turned OFF.
Cooling Fan Motor malfunction
- The LOCK signal remains HIGH or LOW continuously for a predetermined period of time while the Cooling Fan Motor remains energized.
Warm-up failure
- The voltage of the Thermistor remains low for a predetermined period of time when a warm-up cycle is started.
- The temperature detected by the Thermistor remains lower than a reference value for a predetermined period of time for the period of time that begins 5 sec. after, and ends 9 sec. after, the start of the warm-up cycle (where the temperature detected by the Thermistor is 80 °C or less).
- The temperature detected by the Thermistor does not increase for a 3-sec. period or more for the period of time that begins after the lapse of a predetermined period of time after the Fusing Roller Heater Lamp has been turned ON and ends when the lamp is turned OFF.
- The Fusing Roller Heater Lamp remains ON for a 30-sec. period or more (except during the period through which the Main Motor remains energized).
Abnormally low fusing temperature
- The temperature detected by the Thermistor remains lower than the set temperature continuously for a predetermined period of time while the fusing temperature control is being provided. (The set temperatures are as follows: 140 °C during a print mode at 600 dpi; 110 °C during a print mode at 1200 dpi; 70 °C during the standby mode.)
Abnormally high fusing temperature
- The temperature detected by the Thermistor remains higher than 235 °C for a predetermined period of time while the fusing temperature control is being provided.
High voltage failure
- The Drum Charge Monitor Voltage (HVC_MON) signal falls outside a predetermined range at any time after the lapse of a predetermined period of time after the Power Switch has been turned ON.
- The Image Transfer Voltage Monitor signal (T_MON_V) and Image Transfer Current Monitor signal (T_MON_I) fall outside a corresponding predetermined range.