1. Error code 010-333: This error code usually refers to a jam in the fuser unit， which is the part of the copier that heats and bonds the toner to the paper. The fuser unit may need to be replaced if it is damaged or worn out.
2. Error code 015-704: This error code indicates a malfunction in the copier's paper feed system. It may be caused by a paper jam， a damaged paper tray or feed roller， or a dirty feed roller.
3. Error code 018-505: This error code suggests a problem with the copier's image transfer belt. The belt may need to be replaced or cleaned if it is damaged or dirty.
4. Error code 022-451: This error code points to a problem with the copier's drum unit， which is the part of the copier that transfers the toner to the paper. The drum unit may need to be replaced if it is damaged or worn out.
5. Error code 064-330: This error code indicates a problem with the copier's black toner cartridge. The cartridge may need to be replaced if it is low or empty， or if it is damaged or defective.
6. Error code 093-320: This error code points to a problem with the copier's waste toner container. The container may be full if this error code appears， and it may need to be emptied or replaced.
7. Error code 093-421: This error code suggests a problem with the copier's fuser cleaning web， which is the part of the copier that cleans the fuser unit. The cleaning web may need to be replaced if it is damaged or worn out.
8. Error code 099-460: This error code indicates a problem with the copier's drum fan， which is a cooling fan that keeps the drum unit from overheating. The fan may need to be replaced if it is not working properly.
9. Error code 116-324: This error code suggests a problem with the copier's toner density sensor. The sensor may need to be cleaned or replaced if it is dirty or damaged.
10. Error code 116-365: This error code points to a problem with the copier's transfer roller， which is the part of the copier that transfers the toner from the drum unit to the paper. The roller may need to be replaced if it is worn out or damaged.
