Core Technical Parameters (Identical for Both Models)
| Parameter | Specification | Notes |
|---|---|---|
| Print Resolution | 203 dpi | Fully consistent, suitable for Bizerba GLP80 series label printers |
| Effective Print Width | 80 mm (3 inches) | 960 dots for both, compatible with standard 3-inch label applications |
| Print Method | Thermal Transfer | Ideal for high-clarity printing of barcodes, text and graphics |
| Compatible Printers | Bizerba GLP80, GS150, GH150, GV150, GT150, GX150, etc. | 100% compatible with the same product line |
| Bizerba Original Part Number | 65620170500/65620170501 | Both printhead models correspond to these two Bizerba spare part codes |


Key Distinguishing Features
1.Model Suffix Meaning (Batch/Version Variation)
- Suffix B: Generally refers to the early version or products from specific production batches, directly corresponding to the part number 65620170500 in some supplier systems.
- Suffix C: Generally the updated later version or a new production batch, serving as a compatible upgrade to the B version. It has identical functions with minor optimizations in production process and durability.
2.Supplier & Market Circulation Differences
- Some distributors regard the two models as interchangeable spare parts, and label them collectively as "KD2003‑DC91B/C" or use a single model name for inventory management in sales.
- Both are original ROHM printheads customized for Bizerba, not third-party compatible products, and adhere to the same quality standards.
3.Potential Technical Detail Variations
- Slight differences may exist in the resistance value of heating elements or temperature coefficient (usually within ±3%), which does not affect printer compatibility or print quality.
- Minor improvements may be made in protective coating materials or packaging processes to enhance wear and corrosion resistance (no explicit difference documents have been released by ROHM).
Compatibility & Purchase Recommendations
- Full Interchangeability: The two models are 100% compatible at both hardware and software levels and can be directly replaced without adjusting any printer settings.
Purchase Priorities:
- Prioritize the Suffix C version (KD2003‑DC91C): As an updated batch, it usually features more stable production processes and quality control.
- If the equipment manual specifically designates the Suffix B model, you can select the corresponding version directly, or replace it with the Suffix C version (no compatibility risks).
Summary
Rohm KD2003‑DC91B and KD2003‑DC91C are essentially different production batch versions of the same specification and function. The core difference lies in the production period or process optimization represented by the model suffix, rather than variations in performance or compatibility. In practical applications, the two models are 100% interchangeable and can both meet the standard printing requirements of Bizerba GLP80 series printers.

One-stop Thermal Printing Solution in China
We supply 100% original Rohm KD2003-DC91B/DC91C printheads with stable stock and competitive bulk pricing for B2B wholesale. Customized matching solutions for Bizerba printer series, free technical support on installation and after-sales service are also available. Feel free to send us an inquiry via email/WhatsApp for the latest quotation, delivery details and sample application at any time! We will reply to you within 24 working hours.

