Description: Faulty ATDC Sensor
• The measurement taken by the ATDC Sensor (UN1) at a time 2.5 sec. after the Main Motor (M1) has started turning is less than 3 % (greater than 4.98 V). • The measurement taken by the ATDC Sensor (UN1) at a time 2.5 sec. after the Main Motor (M1) has started turning is 19 % or more (1.41 V or less).
Remedy: 1 Developer is not even in the Developer Mixing Chamber. YES • Gently swing the IU in the horizontal direction to even out developer in the Developer Mixing Chamber. 2 ATDC Sensor (UN1) is dirty with foreign matter (such as paper dust) other than developer. YES • Clean ATDC Sensor (UN1). 3 Foreign matter (such as paper dust) is trapped in the Developer Mixing Chamber. YES • Remove foreign matter from the Developer Mixing Chamber. 4 The following voltages are supplied from the Master Board (copier: PWBA). <Check Procedure> Check voltage across a Master Board pin and GND when the Power Switch is turned ON. • DC5.39 V to 8.15 V across PJ7A-8 and GND • DC1.41 V to 4.98 V across PJ7A- 10 and GND YES • Change ATDC Sensor (UN1) and developer. NO • Change Master Board (copier: PWB-A).
Code: C0F33
Description: Improperly adjusted ATDC Sensor
• The adjustment of the ATDC control voltage is not completed within 1 sec. after sampling has started of the ATDC Sensor (UN1) as part of an operation of ATDC Sensor Automatic Adjustment. • The ATDC Sensor control voltage falls outside the range of 5.39 V to 8.15 V during an operation of ATDC Sensor Automatic Adjustment.
Remedy: 1 Developer is not even in the Developer Mixing Chamber. YES • Gently swing the IU in the horizontal direction to even out developer in the Developer Mixing Chamber. 2 ATDC Sensor (UN1) is dirty with foreign matter (such as paper dust) other than developer. YES • Clean ATDC Sensor (UN1). 3 Foreign matter (such as paper dust) is trapped in the Developer Mixing Chamber. YES • Remove foreign matter from the Developer Mixing Chamber. 4 The following voltages are supplied from the Master Board (copier: PWBA). <Check Procedure> Check voltage across a Master Board pin and GND when the Power Switch is turned ON. • DC5.39 V to 8.15 V across PJ7A-8 and GND • DC1.41 V to 4.98 V across PJ7A- 10 and GND YES • Change ATDC Sensor (UN1) and developer. NO • Change Master Board (copier: PWB-A).
Code: C1038
Description: Engine connection failure
Master Board (PWB-A) to Control Board (PWB-C) connection failure • There is no acknowledge signal transmitted from the Master Board (PWB-A) to Control Board (PWB-C) for 1.5 sec. or more. • An error command signal is transmitted from the Control Board (PWB-C) to Master Board (PWB-A). • An error status signal is transmitted from the Master Board (PWB-A) to Control Board (PWB-C).
Remedy: 1 C1038 reappears when the copier is turned OFF and ON again. <Check Procedure> Turn OFF and ON the Power Switch to check to see if C1038 reappears. YES • Go to step 2. 2 The connection between Master Board (copier: PWB-A) and Control Board (copier: PWB-C) is loose. YES • Make good connection between Master Board (copier: PWB-A) and Control Board (copier: PWB-C). NO • Change Control Board (copier: PWB-C). • Change Master Board (copier: PWB-A).
Code: C1200
Description: Faulty ASIC/memory
ASIC/memory (for image and control) fault • A write or read error occurs with SRAM on the Control Board (PWB-C).
Remedy: 1 C1200 reappears when the copier is turned OFF and ON again. <Check Procedure> Turn OFF and ON the Power Switch to check to see if C1200 reappears. YES • Go to step 2. 2 Memory (U8) on Control Board (copier: PWB-C) is loose. YES • Reinstall memory (U8). NO • Change Control Board (copier: PWB-C).
Code: C1300
Description: Polygon Motor malfunction
Startup failure • A LOW Polygon Motor (M2) Lock signal is not detected within a given period of time that begins 1 sec. after the Polygon Motor has started turning. Lock signal fault: Unstable after the first Lock signal has been detected • For a period of 1 sec. after the first LOW Polygon Motor (M2) Lock signal (first Lock) has been detected, the next LOW Polygon Motor Lock signal is not detected. Lock signal fault: Lock signal out-of-timing • A LOW Polygon Motor (M2) Lock signal is not detected for a continuous given period of time while the rotation of the Polygon Motor remains stabilized. Faulty Lock signal • A LOW Polygon Motor (M2) Lock signal is detected for a given period of time or more when the Polygon Motor remains deenergized.
Remedy: 1 C1300/C13F0 reappears when the copier is turned OFF and ON again. <Check Procedure> Turn OFF and ON the Power Switch to check to see if C1300/C13F0 reappears. YES • Go to step 2. 2 Polygon Motor (M2) connector PJ13A is loose. YES • Reconnect connector PJ13A. 3 The following voltage is supplied to the Polygon Motor (M2). <Check Procedure> Check voltage across a Master Board (copier: PWB-A) and GND when the Start key is pressed. • Voltage across PJ13A-3 and GND DC5 V while Polygon Motor (M2) is in standby state DC0 V when Polygon Motor (M2) is energized YES • Change PH Unit. NO • Change Master Board (copier: PWB-A).
Code: C13F0
Description: Faulty HSYNC
Laser scanning system malfunction • The SOS Sensor does not detect a rising edge of SOS within a given period of time after the Polygon Motor (M2) has started turning and a laser output has been started. • The SOS Sensor detects no rising edges of SOS while VIA (image area control) is ON.
Remedy: 1 C1300/C13F0 reappears when the copier is turned OFF and ON again. <Check Procedure> Turn OFF and ON the Power Switch to check to see if C1300/C13F0 reappears. YES • Go to step 2. 2 Polygon Motor (M2) connector PJ13A is loose. YES • Reconnect connector PJ13A. 3 The following voltage is supplied to the Polygon Motor (M2). <Check Procedure> Check voltage across a Master Board (copier: PWB-A) and GND when the Start key is pressed. • Voltage across PJ13A-3 and GND DC5 V while Polygon Motor (M2) is in standby state DC0 V when Polygon Motor (M2) is energized YES • Change PH Unit. NO • Change Master Board (copier: PWB-A).