Description: Motor fan error (error code 122, 128)
Remedy: The rear fan and front fan does not rotate immediately after the power is turned on. (12-1-1) Cable connection condition and wiring condition Cable connection condition and wiring condition of the rear fan and front fan Check if the connectors are connected normally or not. Check if extra length of the cables does not touch the fan blade or not. Correct the connection condition of the connectors. Correct the cable wiring route. Replace the fan. All fans of the printer do not rotate. 12-2-1) 24V power supply CU/PU board fuses, F1, F5 and F6 Check if the fuses F1, F5 and F6 are not open-circuit or not. Replace the CU/PU board 24V power supplied to the CU/PU board Check the power supply voltages at the POWER connector of the CU/PU board. Pins 12, 13 and 14: 24V Pins 9, 10 and 11: 0VP Replace the low voltage power supply.
Remedy: (18-1-1) Check the system connection Connection to the CU/PU board and to the toner sensor board Check if the 20-conductor FFC is connected to the SSNS connector of the CU/PU board normally. Check if the 20-conductor FFC is connected to the CN1 connector of the 76E board normally. Check if the connector is connected in the half-way only or not, and check if the connector is inserted in a slanted angle or not. Re-connect the cable normally. Check if any peeling-off of sheath has occurred or not throughout the cable. Replace the FFC with the normal FFC. (18-1-2) Environment condition Sharp change of environment condition Is the environment condition changed sharply from a low temperature environment to a high environment condition within a short time? (Example is such a case that a printer is moved from storage condition of a cold area in winter to an office environment.) Leave a printer for around one hour in the new environment to get used to the new environment. After that, turn on the power again. Before turn on the power, touch the metal panel of the controller panel and the metal plate inside a printer to feel temperature increase inside a printer with human hands. After confirmation that the printer temperature has increased close to the room temperature, turn on the power again.
Code: 131, 132, 133, 134
Description: LED head cannot be recognized. (error code 131, 132, 133, 134)
Remedy: Service call 131 to 134 (LED HEAD Missing) (15-1-1) Check the system connection Connecting condition of the CU/ PU board connector and the head connector Check the connecting condition of the FFC by the visual inspection. Correct the connection to the normal connecting condition. Head FFC Remove the head FFC from the printer. Check if any open-circuit or peeling-off of sheath has occurred or not throughout the cable. Replace the head FFC or CU/PU board. Conduction of the fuse on the CU/PU board Check if each fuse F14, F15, F16 is open or not. Replace the CU/PU board.
Code: 142
Description: ID unit Up/Down error (Service call 142)
Remedy: Error occurs during the Up movement of the ID unit (10-1-1) Check the mechanical load during the Up movement Mechanical load during installation and removal of the ID unit Check if abnormal heavy load is applied when removing the ID unit. Replace the ID unit, or replace the right/left side plate. Greasing to the right and left Up/Down link levers Check if the slant surface of the link lever is coated by grease or not. Apply grease. Assembled condition of the right and left Up/Down link levers Check if any part exists or not in the vicinity of link lever, that hampers movement of the link lever. Assemble them correctly. (10-1-2) Up/Down mechanism Assembled condition of the peripheral mechanism of the link lever Is the mechanism assembled so that the link lever is connected to the driving gear? Assemble them correctly. Right and left link levers Check if the link lever is set in the correct position that enables the specified engagement of gears. (Check if the link lever is set in the wrong position that results in the wrong engagement of gears by several teeth.) Assemble them correctly. (10-1-3) Sensor check Up/Down sensor lever (unified structure with the left link lever) Check if shape and movement of the sensor levers have any abnormality or not. Replace the left link lever. Up/Down sensor Confirm that the sensor signals are normally detected by using the SWITCH SCAN function of the self-diagnostic mode. Check if the SCAN state changes or not when the incoming light is interrupted/ passed by using a piece of paper or the like for the transparent type sensor. Replace the high voltage board. Error occurs during the Down movement of the ID unit (10-2-1) Check the mechanical load during the Down movement Mechanical load during installation and removal of the ID unit Check if abnormal heavy load is applied when removing the ID unit. Replace the ID unit, or replace the right/left side plate. Greasing to the right and left Up/Down link levers Check if the slant surface of the link lever is coated by grease or not. Apply grease. Assembled condition of the right and left Up/Down link levers Check if any part exists or not in the vicinity of link lever, that hampers movement of the link lever. Assemble them correctly.
Code: 153, 154, 155
Description: Fuse cut error (error codes 153 to 155)
Remedy: Connecting the CU/ PU board and the toner sensor board Check if the 20-conductor FFC is connected to SSNS connector of the CU/PU board and the CN1 connector of the 76E board is connected normally. Check if the connector is connected in the half-way only or not, and check if the connector is inserted in a slanted angle or not. Connect the FFC normally. Check if any peeling-off of sheath has occurred or not throughout the cable. Alternately, replace the FFC. (17-1-2) Fuse cut circuit CU/PU board Upon completion of the system connection check, turn off the power once and back on. The, check if the error occurs or not. Replace the CU/PU board.
Code: 170 ... 177
Description: Fuser unit error (error 170 to 177)
Remedy: Error occurs immediately after the power is turned on. (11-1-1) Thermistor is defective Note) Upper thermistor, lower thermistor, frame thermistor Check the respective thermistors if they are shorted or opened internally. Check the resistance value at the connector pins in the bottom of the fuser unit. (Refer to section 6.1 Resistance check (fuser unit).) Replace the fuser unit. Installed condition of fuser unit. Check if the fuser nit is pressed in until the connector in the bottom of the fuser unit is surely connected. Re-set the fuser unit. Error occurs approx. 1 minute after the power is turned on. (11-2-1) Temperature increase of fuser unit Thermostat, halogen lamp Heater of the fuser unit is controlled of its temperature. Check if the fuser unit gets hot or not by touching it with hands. If the fuser unit temperature does not increase and remains cold, check that the resistance between pin-1 and pin-2, and that in between pin-3 and pin-4 of the two connectors is in the range of several ohms to several ten ohms respectively. (Refer to section 6.1 Resistance value (fuser unit).) Replace the fuser unit. (11-2-2) Temperature increase of fuser unit Installation position of the upper thermistor Check if the upper thermistor is installed in the far position from the specified position or not causing detection of the lower temperature than the actual temperature of fuser unit. Remove the heater cover, and check warpage of sensor by visual inspection. Replace the fuser unit. Installation position of the lower thermistor The lower thermister must be installed while contacting with the fuser unit. Check if the lower thermister is installed in the far position from the specified position or not causing detection of the lower temperature than the actual temperature of fuser unit. Replace the fuser unit. (11-2-3) AC power input to the halogen lamp AC power voltage from the low voltage power supply Check if the AC voltage for heater is normally supplied or not. Power supply CN2 connector, between pin-1 and pin-2, and between pin-3 and pin-4. Replace the low voltage power supply. Heater ON signal that is output from CU/PU to the low voltage power supply Check that the heater ON signal goes active at the warming up timing, or not. "L" active while ON. CU/PU board POWER connector pin-2 and pin-4. Replace the CU/PU board.