Description: Communication error between Control PWB and Operation PWB
Causes:
Remedy: Control PWB 1 Turn the main power switch off and after 5 seconds, then turn power on. 2 Check that the wirings and connectors between the control PWB and the operation panel PWB are normal. Operation PWB and control PWB (YC12) 3 Check that the DIMM memories in the control PWB are well conducted and, if not, replace. 4 Execute U021initialize memory. 5 Replace the control PWB. Operation PWB Replace the operation PWB.
Code: F010
Description: Control PWB checksum error
Causes: Control PWB
Remedy: Turn the main power switch off/on to restart the machine. If the error is not resolved, replace control PWB and check for correct operation.
Code: F020
Description: Control PWB RAM check sum error
Causes: Main memory (RAM)
Remedy: Turn the main power switch off/on to restart the machine. If the error is not resolved, replace control PWB and check for correct operation.
Code: F040
Description: Communication error between Controller and Print engine
Causes: Control PWB
Remedy: 1 Turn the main power switch off and after 5 seconds, then turn power on. 2 Repair or replace the wire from the control PWB, that may be grounded. (Check shortcircuit between 5V and 3.3V.) 3 Check the control software and upgrade to the latest, if necessary. 4 If not corrected, replace the control PWB and check for correct operation.
Code: F050
Description: Print engine ROM checksum error
Causes: Control PWB
Remedy: 1 Turn the main power switch off and after 5 seconds, then turn power on. 2 Confirm that the EEPROM has been properly installed. 3 Check the control software and upgrade to the latest, if necessary. 4 If not corrected, Replace the control PWB and check for correct operation.