Description: Printer font error
Necessary font files are not found.
Causes: - Font file not installed
Code: 928
Description: Memory error
The machine detects a discrepancy in the write/read data during its write/read test (done at power off/on and at recovery from low power or night/off mode).
Causes: - Memory defective
- BICU defective
- Poor connection between BICU and memory
Code: 954
Description: Printer application program error
The printer status does not become ready when the printer application program is necessary for image processing.