bonsaii C237-B New Version
Bonsaii Paper Shredder
Model: C237-B New Version User Manual
1. Introduction
Thank you for choosing the Bonsaii C237-B New Version Paper Shredder. This cross-cut shredder is designed for home and small office use, providing secure disposal of sensitive documents, credit cards, staples, and paper clips. Please read this manual thoroughly before operation to ensure safe and efficient use.
What's in the Box:
- 1 x Paper Shredder Unit (Head)
- 1 x Wastebasket (3.4 Gallon / 13 Liters)
- 1 x User Manual

Image: The Bonsaii C237-B paper shredder, a black unit with a clear window showing shredded paper and a silver handle on top.
2. Important Safety Instructions
To reduce the risk of fire, electric shock, or injury, always follow basic safety precautions when using this product.
- Keep out of reach of children and pets.
- Keep loose clothing, jewelry, hair, and other foreign objects away from the paper entry slot.
- Do not place hands or fingers into the paper entry slot.
- Always unplug the shredder before moving, cleaning, or emptying the wastebasket.
- Do not operate if the power cord is damaged.
- Do not shred wet or sticky materials.
- The shredder will stop working once the head is lifted from the wastebasket, ensuring user safety.
Do Not Shred:

Image: A diagram showing items that should not be shredded, including large paper clips, CDs/DVDs, window envelopes, adhesive materials, newspapers, continuous computer paper, cardboard, metal credit cards, and laminated documents/magazines.
Caution:
- Do not spray or store any aerosol products (such as cleaners, flammable liquids, gases, oils, etc.) inside or around the shredder.
- Do not use compressed air cans on the shredder.
3. Setup
- Unpack: Carefully remove the shredder and all components from the packaging.
- Position: Place the shredder on a flat, stable surface. Ensure it is positioned near a power outlet and has adequate space for ventilation. The compact dimensions (approximately 7 x 11.2 x 14 inches) allow it to fit neatly under most desks.
- Assemble: Place the shredder head securely onto the wastebasket. Ensure it is properly seated for the safety interlock to engage.
- Connect Power: Plug the power cord into a standard electrical outlet.

Image: The Bonsaii shredder shown with its dimensions (36.2cm height, 30cm width, 18cm depth) next to a desk, illustrating its compact size.
4. Operating Instructions
Control Panel:
The shredder features a simple control panel with a slide switch for different modes:
- FWD (Forward): For manual shredding or clearing minor jams.
- AUTO (Automatic): The shredder will automatically start when paper is inserted and stop when shredding is complete. This is the recommended setting for normal use.
- OFF: Turns the shredder off.
- REV (Reverse): Reverses the shredding action to clear paper jams.

Image: A close-up of the shredder's control panel, showing the slide switch with FWD, AUTO, OFF, REV options, and indicator lights for Power (green) and Overheat (red).
Shredding Paper:
- Set the slide switch to AUTO.
- Insert up to 6 sheets of A4 paper (75g/m²) into the paper entry slot. The shredder will automatically start and shred the paper into 5x14mm cross-cut particles (P-4 security level).
- The shredder can handle staples and small paper clips without removal.
Shredding Credit Cards:
- Set the slide switch to AUTO.
- Insert one credit card at a time into the designated credit card slot.

Image: The shredder demonstrating its ability to shred paper, credit cards, clips, and staples, with an inset showing the resulting small cross-cut particles.
Continuous Operation & Cooling:
The shredder is designed for a continuous operating time of 3 minutes. After 3 minutes of continuous use, the overheating LED indicator will light up. Allow the shredder to cool down for 20 minutes before resuming operation to prevent overheating and extend its lifespan.

Image: A hand feeding 6 sheets of paper into the shredder, with icons indicating "6 A4 Sheets Per Pass" and "3 Minute Non-Stop Shredding Time".
5. Maintenance
Emptying the Wastebasket:
The shredder features a 3.4-gallon (13-liter) transparent window bin, allowing you to easily monitor the shredded paper level. When the wastebasket is full:
- Set the slide switch to OFF and unplug the shredder.
- Lift the shredder head using the portable handle.
- Empty the shredded contents from the wastebasket.
- Replace the shredder head securely onto the wastebasket.

Image: The shredder head being lifted by its portable handle, revealing the wastebasket and indicating its 13 Litres / 3.4 Gallons capacity.
Oiling the Shredder:
Regular oiling of the shredder blades is recommended to maintain performance and extend the life of your shredder. Use shredder oil (not supplied) or specially oiled paper. Follow the instructions provided with the shredder oil.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Shredder does not start. | Not plugged in; shredder head not properly seated; overheat protection activated. | Ensure power cord is securely plugged in. Re-seat the shredder head firmly onto the wastebasket. Allow 20 minutes for cooling if overheat indicator is on. |
| Paper jam. | Too many sheets inserted; paper inserted crooked; wastebasket full. | Set switch to REV to clear paper. If unsuccessful, unplug, remove shredder head, and manually clear paper. Empty wastebasket if full. Reduce sheet count for next shredding. |
| Overheat indicator light is on. | Continuous operation exceeded 3 minutes. | Turn off the shredder and allow it to cool down for 20 minutes. The light will turn off when ready for use. |
7. Specifications
| Feature | Detail |
|---|---|
| Model | C237-B New Version |
| Cut Type | Cross Cut |
| Shred Size | 5x14mm particles (P-4 Security Level) |
| Sheet Capacity | Up to 6 sheets (A4, 75g/m²) |
| Shreds Materials | Paper, Credit Cards (one at a time), Staples, Small Paper Clips |
| Wastebasket Capacity | 3.4 Gallons (13 Liters) |
| Continuous Run Time | 3 minutes |
| Cool Down Period | 20 minutes |
| Product Dimensions | 7 x 11.2 x 14 inches (18 x 30 x 36.2 cm) |
| Item Weight | 6.55 pounds |
| Special Features | Jam Proof (Manual Reverse), Overheat Protection, Safety Interlock (Head Lift), Portable Handle |
8. Warranty and Support
Warranty:
Bonsaii offers a 1-year warranty for this paper shredder. This warranty covers defects in materials and workmanship under normal use.
Customer Support:
If you have any questions, concerns, or require assistance with your Bonsaii paper shredder, please contact Bonsaii customer support. Refer to the contact information provided on the Bonsaii official website or your purchase documentation.
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