کو نیکا مینو لتا magicolor2550en

کو نیکا مینو لتا magicolor2550en

04    Printer control board malfunction
• Communications with the M/C expansion IO G/A (IC on the printer control board) are not properly carried out     copyir.com    1 Check the PRCB connector for proper connection and correct as necessary     copyir.com 2 Change PRCB     copyir.com
05    Flash ROM malfunction
• Firmware upgrading has failed     copyir.com    1 Check the PRCB connector for proper connection and correct as necessary     copyir.com 2 Change PRCB     copyir.comRCB     copyir.com
08    Main motor malfunction
• The motor lock signal remains HIGH for a predetermined consecutive period of time while the main motor remains energized     copyir.com
• The motor lock signal remains LOW for a predetermined consecutive period of time while the main motor remains deenergized     copyir.com    1 Check the M1 connector for proper connection and correct as necessary     copyir.com 2 Check M1 for proper drive coupling and correct as necessary     copyir.com 3 Check the PRCB connector for proper connection and correct as necessary     copyir.com 4 M1 operation check     copyir.com 5 Change PRCB     copyir.com 6 Change DCPU     copyir.com
0B    Ventilation fan motor malfunction
• The fan motor lock signal remains HIGH for a predetermined consecutive period of time while the ventilation fan motor remains energized     copyir.com    1 Check the FM2 connector for proper connection and correct as necessary     copyir.com 2 Check the fan for possible overload and correct as necessary     copyir.com 3 Check the PRCB connector for proper connection and correct as necessary     copyir.com 4 FM2 operation check     copyir.com 5 Change PRCB     copyir.com 6 Change DCPU     copyir.com
0C    Power supply cooling fan motor malfunction
• The fan motor lock signal remains HIGH for a predetermined consecutive period of time while the power supply cooling fan motor remains energized     copyir.com    1 Check the FM1 connector for proper connection and correct as necessary     copyir.com 2 Check the fan for possible overload and correct as necessary     copyir.com 3 Check the PRCB connector for proper connection and correct as necessary     copyir.com 4 FM1 operation check     copyir.com 5 Change PRCB     copyir.com 6 Change DCPU     copyir.com
0F    Cooling fan motor malfunction Duplex Option
10    Polygon motor malfunction
• A LOW motor lock signal is not detected even after the lapse of a predetermined period of time after the polygon motor has been started     copyir.com
• The motor lock signal remains HIGH for a predetermined consecutive period of time while the polygon motor remains energized     copyir.com    1 Check the cable and connector for proper connection and correct as necessary     copyir.com 2 Change PH unit     copyir.com 3 Change PRCB     copyir.com
12    Laser malfunction
• The SOS signal is not detected within a predetermined period of time after the output of a laser has been started     copyir.com
• The SOS signal is never detected in the image area     copyir.com    1 Check the cable and connector for proper connection and correct as necessary     copyir.com 2 Change PH unit     copyir.com 3 Change PRCB     copyir.com
14    2nd image transfer pressure /retraction failure
• The state of the retraction position sensor/2nd image transfer is not changed from the unblocked to blocked state even after the lapse of a predetermined period of time during predrive     copyir.com
• The retraction position sensor/2nd image transfer is in the unblocked state even after the lapse of a predetermined period of time during predrive     copyir.com
• The retraction position sensor/2nd image transfer is not blocked (roller in the retracted position) within a predetermined period of time after the retraction sequence of the 2nd transfer roller has been started     copyir.com
• The retraction position sensor/2nd image transfer is not unblocked (roller in the pressed position) within a predetermined period of time after the pressure sequence of the 2nd transfer roller has been started     copyir.com    1 Check the M1 connector for proper connection and correct as necessary     copyir.com 2 Check M1 for proper drive coupling and correct as necessary     copyir.com 3 Check the SD4 connector for proper connection and correct as necessary     copyir.com 4 Check the PRCB connector for proper connection and correct as necessary     copyir.com 5 PS5 sensor check     copyir.com 6 SD4 operation check     copyir.com 7 M1 operation check     copyir.com 8 Change PRCB     copyir.com
15    Cleaning blade pressure /retraction failure
• The state of the retraction position sensor/cleaning blade is not changed from the blocked to unblocked state even after the lapse of a predetermined period of time during predrive     copyir.com
• The retraction position sensor/cleaning blade is in the blocked state even after the lapse of a predetermined period of time during predrive
• The retraction position sensor/cleaning blade is not unblocked (blade in the retracted position) within a predetermined period of time after the retraction sequence of the cleaning blade has been started     copyir.com
• The retraction position sensor/cleaning blade is not blocked (blade in the pressed position) within a predetermined period of time after the pressure sequence of the cleaning blade has been started     copyir.com    1 Check the M1 connector for proper connection and correct as necessary     copyir.com 2 Check M1 for proper drive coupling and correct as necessary     copyir.com 3 Check the SD3 connector for proper connection and correct as necessary     copyir.com 4 Check the PRCB connector for proper connection and correct as necessary     copyir.com 5 PS6 sensor check     copyir.com 6 SD3 operation check     copyir.com 7 M1 operation check     copyir.com 8 Change PRCB     copyir.com
16    Transfer belt rotation failure
• The belt positioning sensor does not detect the transfer belt position detection hole a second time even after the lapse of a predetermined period of time after it has detected one while the transfer belt is rotated     copyir.com    1 Check the PRCB connector for proper connection and correct as necessary     copyir.com 2 PS4 sensor check     copyir.com 3 Change transfer belt unit     copyir.com 4 Change PRCB     copyir.com
17    Rack rotation failure
• The rack positioning sensor is in the blocked state when the rack motor remains deenergized     copyir.com
• The rack positioning sensor is not blocked a second time even after the lapse of a predetermined period of time after it has been blocked once while the rack motor remains energized     copyir.com
• The rack positioning sensor is unable to detect the deceleration control position after the lapse of a given period of time after the rack motor has started while the rack motor is turning     copyir.com
• The count value of the edge of ON signal of the rack positioning sensor during each developing positions are not a predetermined value while the rack motor is turning     copyir.com    1 Check the M2 connector for proper connection and correct as necessary     copyir.com 2 Check M2 for proper drive coupling and correct as necessary     copyir.com 3 Check the PRCB connector for proper connection and correct as necessary     copyir.com 4 PS3 sensor check     copyir.com 5 M2 operation check     copyir.com 6 Change PRCB     copyir.comhe
18    Heating roller warm-up failure
• The thermistor does not detect a predetermined temperature value even after the lapse of a predetermined period of time after the current warm-up cycle has been started and the current warm-up cycle is thus not completed     copyir.com    1 Check the fusing unit for correct installation (whether it is secured in position)     copyir.com 2 Check the fusing unit, PDCU, and PRCB for proper connection and correct as necessary     copyir.com 3 check the lever of the safety switch and correct as necessary     copyir.com 4 change the fusing unit     copyir.com 5 Change PRCB     copyir.com 6 Change PDCU     copyir.com
19    Abnormally low heating roller temperature
• The temperature detected by the thermistor remains lower than a predetermined value for a predetermined period of time     copyir.com    1 Check the fusing unit for correct installation (whether it is secured in position)     copyir.com 2 Check the fusing unit, PDCU, and PRCB for proper connection and correct as necessary     copyir.com 3 check the lever of the safety switch and correct as necessary     copyir.com 4 change the fusing unit     copyir.com 5 Change PRCB     copyir.com 6 Change PDCU     copyir.com
1A    Abnormally high heating roller temperature
• The temperature detected by the thermistor is a predetermined value or higher for a predetermined period of time     copyir.com    1 Check the fusing unit for correct installation (whether it is secured in position)     copyir.com 2 Check the fusing unit, PDCU, and PRCB for proper connection and correct as necessary     copyir.com 3 check the lever of the safety switch and correct as necessary     copyir.com 4 change the fusing unit     copyir.com 5 Change PRCB     copyir.com 6 Change PDCU     copyir.com
1B    Faulty thermistor
• The condition of a temperature rise of less than 1°C extends continuously for a predetermined period of time that begins when the warm-up cycle is started     copyir.com    1 Check the fusing unit for correct installation (whether it is secured in position)     copyir.com 2 Check the fusing unit, PDCU, and PRCB for proper connection and correct as necessary     copyir.com 3 check the lever of the safety switch and correct as necessary     copyir.com 4 change the fusing unit     copyir.com 5 Change PRCB     copyir.com 6 Change PDCU     copyir.com
21    Faulty OHP sensor
• It is determined that the OHP sensor is faulty through a check made at the end of the predrive     copyir.com    1 Check the PRCB connector for proper connection and correct as necessary     copyir.com 2 PS2 sensor check     copyir.com 3 Change PRCB     copyir.com
24    Faulty fusing thermistor resistor
• The heater lamp remains ON for a predetermined consecutive period of time     copyir.com    1 Check the PRCB connector for proper connection and correct as necessary     copyir.com 2 Change fusing unit     copyir.com 3 Change PRCB     copyir.com
29, 2A, 2B, 2C    Trouble related to security
• Contact the responsible people of KONICA MINOLTA when not returning in power switch OFF/ON     copyir.com