| Код ошибки | Причина |
| Engine Related |
| E004 | Engine board problem |
| E005 | Flash ROM problem |
| E008 | Main motor problem |
| E011 | Sirocco fan problem |
| E012 | Power supply cooling fan problem |
| E014 | Suction fan problem |
| E016 | Polygon motor problem |
| E018 | Laser problem |
| E020 | Secondary transfer voltage contact/release problem |
| E021 | Transfer belt cleaner contact/release problem |
| E022 | Transfer belt rotation problem |
| E023 | Imaging rack rotation problem |
| E024 | Fuser roller temperature increase problem |
| E025 | Fuser roller low temperature problem |
| E026 | Fuser roller high temperature problem |
| E027 | Fuser roller thermistor problem |
| E033 | Transparency detection sensor problem |
| E041 | Main unit memory counter problem |
| E042 | Main unit memory data problem |
| E043 | Main unit memory access problem |
| E044 | Main unit memory installation problem |
| E998 | Engine communication error |
| Controller Related |
| C0017 | CPU error (Interrupt exception) |
| C0088 | CPU error (System call exception) |
| C0089 | CPU error (Break point exception) |
| C0091 | CPU error (Disabled floating-point exception) |
| C0300 | CPU error (Reserved (undefined) exception) |
| C0301 | CPU error (Machine check exception) |
| C0302 | CPU error (Data access exception) |
| C0303 | CPU error (Instruction access exception) |
| C0304 | CPU error (Alignment exception) |
| C0305 | CPU error (Program exception) |
| C0306 | CPU error (Trace exception) |
| C0307 | CPU error (Performance monitor exception) |
| C0308 | CPU error (System administration interrupt exception) |
| C0309 | CPU error (Temperature management interrupt exception) |
| C0800 | IPL error (Controller defective) |
| C0998 | Engine communication error (Only when powering on) |
| C0999 | No Engine Flash ROM program data |
| C1002 | Standard RAM error (When the standard size is not determined, etc.) |
| C1010 | Verify error |
| C1020 | RAM error (Slot 0) |
| C1021 | RAM error (Slot 1) |
| C1100 | ROM checksum error (bit 0 ~ 15) (Font) |
| C1101 | ROM checksum error (bit 16 ~ 31) (Font) |
| C1120 | ROM checksum error (bit 0 ~ 7) (Program) |
| C1121 | ROM checksum error (bit 8 ~ 15) (Program) |
| C1122 | ROM checksum error (bit 16 ~ 23) (Program) |
| C1123 | ROM checksum error (bit 24 ~ 31) (Program) |
| C1170 | Optional Font ROM module checksum error |
| C1180 | Optional ROM module A checksum error |
| C1181 | Optional ROM module B checksum error |
| C1185 | Unsupported ROM module |
| C1200 | EEPROM write error |
| C1210 | EEPROM write count limit |
| C1400 | Engine initialization malfunction |
| C1500 | CCNV hardware error |
| C1550 | Compression SRAM initialization hardware error |
| C1600 | Video related hardware error (including PWM IC calibration error) |
| C1700 | Built-in network hardware error |
| C1800 | SPD error of ROM module |
| C1999 | Other hardware error |
| C2000 | Software error |
