Oki C7200 Service Manual - Page 272

Read/Write when turned on. Service Call Error detected at Does the error repeat? Yes 104: Error Engine EEPROM Checksum when turned on. Service Call EEPROM not No EEPROM? Yes 105: Error detected when Does the error repeat? Yes turned on. Service Call Error detected at Does the error repeat? Yes 106: Error Engine Control Logic. Service Call Error detected at 1) Is the error message displayed? Yes 120: Error the Power unit 2) Does the error repeat? Yes ~ 122 Error cooling fan in the Controller cavity. Service Call Inappropriate 1) Is the error message displayed? Yes 123: Error ambient RH 2) Does the error repeat? Yes detected by a sensor Service Call: Inappropriate 1) Is the error message displayed? Yes 124 Error ambient temp. 2) Does the error repeat? Yes detected by a sensor. Replace the engine control board (71K). Confirm the existence of EEPROM. Without it mount an EEPROM. Replace the engine control board (71K). Replace the engine control board (71K). Turn off/on the printer. Replace the fan motor. Turn off/on the printer. Replace the RH sensor. Turn off/on the printer. Replace the temperature sensor. Copyright 1999, Okidata, Division of OKI America, Inc. All rights reserved.