Causes: 1. No document? 2. U15-125 is HIGH? (+4V or over)
Remedy: 1. Insert documents. 2. If high, check SEN1 and the surrounding circuit. If low, replace the main PBA.
Code: 08
Description: No Cartridge
Causes: 1. Check if ink cartridge is mounted. 2. Check contacted part of the head. 3. Check head checking circuit and driver.: Check U15-8,9,10,128,154,156, U17-23 control signals and head data.
Remedy: 1. Mount ink cartridge. 2. Clean it. 3. Replace the main PBA.
Code: 09
Description: Ink low
Causes: Check the amount of ink.
Remedy: Replace ink cartridge. After replacing it, press Oink replacement O key for over 3sec to inform the system of new ink.
Code: 10
Description: Can't copy
Causes: 1. Refer to problems of scanner. 2. Poor quality of printed image : Print test pattern and check if nozzles have fallen out. 3. Can't print.: Check U17-34, 36 signals.( LOW ACTIVE)
Remedy: 1. Refer to problems of scanner. 2. 1) Check contact between ink cartridge and the head.: Clean it. 2) Check print control signals of U15- 1-10, U15-158 - 160, U15-12-19, and U15-21-28. Check input and output signals of U19,20,23, and 24. Replace the main PBA. 3. Replace the main PBA.
Code: 11
Description: Can't PRINT
Causes: 1. Check centronics cable connection. 2. Is Standby LED of the system on? 3. Check how print driver has been installed. 4. Check I/F part of parallel port. 1) Check the initial state of print control signal of CON8.: No.1, 10 -14, 31, 32, 36 2) Check input and output signal of U14. 3) Check input and output signals of U15-43-51 and U15-53-61. 5. Refer to 2 and 3 of 6-4 PRINGTING QUALITY.
Remedy: 1. Connect it correctly. 2. Press OstandbyO key to keep the standby mode. 3. Install the print driver again and reboot the system. 4. Replace the main PBA. 5. Refer to 2 and 3 of 6-4 PRINGTING QUALITY.
Code: 12
Description: Defective Transmission / Reception
Causes: In case PC controls: 1. Check CON3(main PBA), main LIU harness, and P1(LIU PBA). 2. 1) Is external telephone hooked off? 2) Output of U2-4(LIU PBA) is LOW? 3. Check HOOK-OFF. (Line connection): U17-8(/CML1) is HIGH? 4. Check the signals of U15-122, 123. 5. Check transmission path: Check output of U21-44(main PBA) and input of U3-3(LIU PBA). 6. Check reception path: Check output of U3-40(LIU PBA) and input of U21-45(main PBA). In case you use external telephones: 1. Check CON3(main PBA), main LIU harness, and P1(LIU PBA). 2. Output of U2-4(LIU PBA) is HIGH? (+4V or over) 3. Refer to 3,4,5 and 6 of ODefective Transmission/Reception in In case PC controls.
Remedy: 1. Replace defective parts. 2. 1) Hook on external telephone correctly. 2) If low, replace LIU PBA. 3. If low, replace main PBA. If it is not hooked off though it is normal, replace LIU PBA. 4. If the signals of U15-122(LIU_TXD) are abnormal, replace main PBA. If the signals of U15-123(LIU_RXD) are abnormal, replace LIU PBA. 5. If it is abnormal, replace main PBA. 6. If the output of U3-40(LIU PBA) is not confirmed, replace LIU PBA. If the output of U3-40(LIU PBA) is confirmed but the input of U21-45(main PBA) is not confirmed, check the circuit around U6(main PBA). 1. Replace defective parts. 2. If high, check the surrounding circuit and replace LIU PBA. 3. Refer to 3,4,5 and 6 of Defective Transmission/ReceptionO in OIn case PC controls.