Description
DH Print 546 Cypher IV Thermal Label Printer RS-232 Serial ROHM KF1504-AA
The DH Print 546 Cypher IV is a desktop thermal label printer manufactured in the United States and dated April 1990. It uses a ROHM KF1504-AA thermal print head and connects to a host system via an RS-232C serial interface. The rear DIP switch banks (SW1 and SW2) configure baud rate, parity, bit width, print mode, and interface options without requiring software changes.
Specifications & What's Included
- Brand: DH Print
- Model: 546 / Cypher IV
- Part Number: 546 S12000-086
- Revision: A00
- Date Code: 0490 (April 1990)
- Print Head: ROHM KF1504-AA
- Interface: RS-232C Serial
- Supported Baud Rates: 300, 600, 1200, 2400, 4800, 9600, 19.2K baud (SW1 DIP switches)
- SW1 Options: Parity enable, odd/even parity, 7/8-bit ASCII
- SW2 Options: X-ON/X-OFF, bi/uni-directional interface, hi/lo true busy, auto line feed, vertical/horizontal print, auto check, strip mode, alternate font selection (×2), parallel interface
- Print Modes: Strip Mode, Batch Mode, Batch Rewind
- Front Panel Indicators: Power (green LED), Ready (yellow LED), Strip Mode (yellow LED)
- Front Panel Control: Label Advance button
- Form Factor: Desktop
- Country of Manufacture: USA (per label)
- Certifications visible on rear label: CE, UL
- Power: AC (power switch on rear panel; voltage not fully legible in photos)
Applications
The Cypher IV 546 is a thermal direct label printer from the early 1990s, designed for barcode label printing in industrial, retail, and warehouse environments. It connects to a host computer or controller via RS-232C serial, making it compatible with the wide range of systems that used serial communication at the time — including PCs, minicomputers, and dedicated label-generation workstations. The DIP-switch-configurable interface was common in that era, allowing the printer to be adapted to different host configurations without firmware updates. Strip Mode peels printed labels from the backing for immediate application, while Batch and Batch Rewind modes handle larger label runs. The Aedex name associated with this printer reflects the product line branding used in some markets. These printers were widely used in manufacturing, distribution, and inventory control applications during the early-to-mid 1990s.
This DH Print 546 Cypher IV thermal label printer is being sold as-is for parts or repair. The unit has not been tested and no functionality is guaranteed. It may be incomplete or non-functional. The unit received may vary slightly from the one photographed, as we have had multiple units in stock. Please view our photo set and contact us if you have any questions. Please note: We have multiple units in stock — yours may not be the one shown in the photos, however, it will be similar in condition and function.
Warranty Information
Additional Information
Brand: |
DH Print |
Model: |
546 |
MPN: |
546 S12000-086 |
Secondary Model: |
Cypher IV |
Type: |
Thermal Label Printer |
SKU: |
12144 |
Condition: |
As-Is / For Parts or Not Working |
Print Head: |
ROHM KF1504-AA |
Interface: |
RS-232C Serial |
Baud Rate: |
300, 600, 1200, 2400, 4800, 9600, 19.2K |
Print Modes: |
Strip Mode, Batch Mode, Batch Rewind |
Front Panel Controls: |
Power, Ready, Strip Mode LEDs; Label Advance button |
Revision: |
Rev A00 |
Date Code: |
0490 (April 1990) |
Country/Region of Manufacture: |
United States |
Form Factor: |
Desktop |
Seller Notes: |
Sold as-is for parts or repair. Untested. Unit may vary from photo. |
Condition Notes: |
DH Print 546 Cypher IV thermal label printer sold as-is for parts or repair. Untested — no functionality guaranteed. May be incomplete. Unit received may vary from photo. Please contact us with questions. |
