The interior of a cash box is primarily composed of a metal mechanical structure, with the exception of the electromagnetic device. Over time, deformation, rust, and aging can significantly affect its performance. Below are some common issues and their corresponding solutions:
1. **Cable Failure**
The cash drawer is connected to the printer via a cable, and any break in this connection can prevent the drawer from opening or closing properly. To check for a broken wire, users with the necessary tools can use a multimeter to test continuity. If the issue persists, replacing the cable is a straightforward solution.
2. **Electromagnetic Coil Failure**
The electromagnetic coil and striker work together as a relay system. If the relay isn’t functioning, you may hear a clicking sound when sending a command through the software. If the sound is present, it might indicate an external issue. Open the cash box and inspect the relay’s condition—adjust the striker’s position or apply a small amount of lubricant at the contact point between the striker and the core. If the problem remains, the relay should be replaced.
3. **Spring and Rail Issues**
A weak pop when opening the cash box often points to problems with the spring or rail. Check if the spring has lost elasticity or become deformed. If so, manually stretch it to restore its function. For the rails, ensure the wheels move smoothly and the brackets are not bent. Cleaning debris and applying a little grease to the rollers and rails can also help resolve the issue.
4. **Circlip Malfunction**
Circlip failure is often linked to relay issues, as the relay controls the circlip. A deformed or rusted circlip can increase friction, making it difficult to release the cash box. This is more common in older models. Correcting the deformation, removing rust, and applying a small amount of lubricant usually solves the problem.
5. **Lock Problems**
It's not uncommon for users to lose keys or encounter locked cash boxes. If the third-generation model is stuck, avoid forcing it open, as this can cause permanent damage. Instead, contact the supplier to reprogram the key or replace the lock. With the assistance of technical personnel, you can safely open the box and complete your task without risk.
Regular maintenance and proper handling can significantly extend the life of a cash box and reduce the likelihood of these issues. Always follow the manufacturer’s guidelines and seek professional help when needed.
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