The **Canon TR8620** printer error code **E03** indicates a **paper jam** in the printer. This error typically occurs when the printer detects a piece of paper stuck or obstructing the paper path, preventing the proper feeding of paper.
### **Technical Description of Error Code E03 (Paper Jam):**
- **Error Trigger**: The printer's internal sensors detect a blockage or obstruction in the paper feed system. These sensors are usually located in various areas of the paper path, such as the input tray, rollers, or the paper exit path.
- **Possible Causes**:
1. **Physical Paper Jam**: A piece of paper may be stuck in the printer, preventing the paper feed mechanism from operating correctly.
2. **Improper Paper Load**: Paper may not be loaded correctly or may be curled, causing it to jam when being pulled into the printer.
3. **Dirty or Worn Rollers**: If the feed rollers are dirty or worn, they may fail to grab and feed the paper correctly, resulting in a jam.
4. **Foreign Objects**: Small debris or fo