• Code: 1-061
• Description: Entire black page is printed.
• Causes: Engine board. 1. No supply or bias voltage at the Engine board. (Perform DCU diagnostic mode 04 to measure the voltage)
• Remedy: Check the following parts : U201(KA324), Q204(D526-Y), T204(Transformer), U203(SN7407N) Resistors, Diodes and etc. in the output and feedback section Refer to the following information. U203(7407N)'s pin #9 ; pulse input, pin #8 ; pulse output

• Code: 1-062
• Description: A black page prints.
• Causes: Engine board. 1. Voltages higher than normal. (supply : 490V - 510V, bias : 290V - 310V)
• Remedy: 2-1. Check the following parts : U201(KA324), Q204(D526-Y), T204(Transformer), U203(SN7407N) Resistors, Diodes and etc. in the output and feedback section Refer to the following information. U203(7407N)'s pin #9 ; pulse input, pin #8 ; pulse output 2-2. Check developer contacts for contamination by toner particles.

• Code: 1-063
• Description: When printing, especially in high temperature, the printer sounds abnormal and the printed image is dark
• Causes: Engine board. Transfer voltage is maximum.
• Remedy: Check the following parts : U201(KA324), Q205(A708), Q206(C1008), Q202(KSD526-Y), Q203(KSD526-Y)), VR201, T201 and T203, U203(SN7407) Resistors and Diodes and etc. in the output and feedback section Remark Transfer voltage check point: Q203 operating voltage; Base 2-2.5V, Emitter 0-1V, Collector 30-60V U203; #11 pulse input, #10 pulse output

• Code: 1-070
• Description: Print density uneven from left to right
• Causes: 1. Transfer roller pressure 2. Developer cartridge. The pressure of the left and right springs of the Transfer roller may be unbalanced, the springs are damaged, the Transfer roller is improperly installed, or the transfer roller bushing or holder is damaged.
• Remedy: 1. Cause 1 : Replace defective roller or springs. 2. Cause 2 : Check transfer voltage or replace the Transfer roller.

• Code: 1-080
• Description: Background appears in the printing.
• Causes: 1. Engine board 2. Developer cartridge 3. Transfer roller 4. Operating environment. 1-1. Transfer voltage low (in excess of approx. 10% below spec) 1-2. Supply and /or bias voltage high. 1-3. Negative transfer voltage is not correct. 1-4. Erasing lamp is defective (causing approx. 20% residual image) 2. Unauthorized recording paper has been used. 3. Abnormal ambient temperature or humidity.
• Remedy: 1-1. Refer to Error Code 1-060. 1-2. Refer to Error Code 1-061. 1-3. Refer to Error Code 1-090 and 1-091. 1-4. If the erasing lamp does not turn on or off properly, check the lamp PCB and Q1/Q10 on the engine board. The erasing lamp should be on when CPU pin 35 is 0V. (Check the voltage after you remove the developer and manually activate the top cover switch). Replace the lamp if it does not come on. 2. Use the recommended type of recording paper. 3. If the printer is used in abnormal ambient conditions for a long time, print errors may occur.

• Code: 1-090
• Description: Ghost occurs at 94mm intervals
• Causes: 1. Developer cartridge 2. Main body. 1. Contamination of high voltage terminals in the main body, engine board, and/or developer. 2. Transfer roller lifetime has expired. 3. No using recommended recording paper. 4. The erasing lamp defective.
• Remedy: 1. Open top cover and disassemble the unit and clean contamination components. 2. After replacing the transfer roller, make sure the transfer voltage is normal. 3. Use a recommended type of recording paper. 4. If the erasing lamp does not turn on and off properly, check the lamp PCB and Q1/Q10 in the engine board. The erasing lamp should be on when CPU pin 35 is 0V. (Check the voltage by removing the developer and activating the top cover switch)

• Code: 1-090-1
• Description: Ghost occurs at 94mm intervals
• Causes: Operating environment. 1. Strong light, such as direct sunlight, entering the manual feeder, causing a horizontal ghost on the printed page. 2. Abnormally low temperature and humidity. In this case, ghost occurs on the entire page and the print density is too light.
• Remedy: 1. If strong light enters the manual feeder ; Change the orientation or location of the printer or attach the OPC sheet cover. 2. If the operating temperature and relative humidity are too low, try waiting about 1 hour after power on before using printer

• Code: 1-091
• Description: When xerographic paper is used in ADF, ghost occurs at 94mm intervals
• Causes: Engine board. No minus(-) transfer voltage output from the engine board. (Normal voltage: 850-1250V with 100 Mohm load)
• Remedy: Check the following parts : U201(KA324), Q207(A708), Q202(KSD526-Y), T201, U203(sn7407) Resistors and Diodes and etc. in the output and feedback section