• Code: 954
• Description: Printer application program error
  The printer application program does not become ready when the printer application program is necessary.
• Causes: - Defective application program

• Code: 955
• Description: Image transfer error
  The BICU requests the controller to transfer image data; but the controller does not become ready.
• Causes: - Defective application program

• Code: 964
• Description: Status error (laser optics housing unit)
  The optics-housing unit does not become ready within 17 seconds after a request.
• Causes: - Defective software

• Code: 980
• Description: Controller-engine inconsistency
  The controller is incompatible with the engine.
• Causes: One of the following controllers is installed to the basic model:
  - The controller of the MFP model
  - The controller of the copier/facsimile model
  - The controller of the printer/scanner/copier model
  The controller of the optional printer/scanner is installed to one of the following models:
  - The MFP model
  - The copier/facsimile model
  - The printer/scanner/copier model

• Code: 981
• Description: NVRAM error
  An error occurs during engine NVRAM check.
• Causes: - Defective NVRAM
  - Loose connection between the BICU and the NVRAM
  - Incorrect installation of the NVRAM
  - Defective BICU

• Code: 982
• Description: Localization error
  The localization information in the nonvolatile ROM and in the NVRAM is different
• Causes: - Localization setting not specified (The main power switch is turned on for the first time after the NVRAM is replaced.)
  - Incorrect localization setting
  - Defective NVRAM

• Code: 984
• Description: Print image transfer error
  Print images are not transferred
• Causes: - Defective controller
  - Defective BICU
  - Loose connection between the controller and the BICU