Founded in 1979 in Zhejiang, China Daerq Office Equipment Co., Ltd. is impact printer manufacturer and designer of office products, school products and stationery. We have engineering development and designing department, mold research department, plastic injection department, printing department, assembling department, sewing department and PVC production department. Owing to hard working of every staff, we have been grown up fast, having accumulated plentiful experience of production, impact printers design and manufacture. Our company has passed ISO9001 International Quality Certification, and all of our products have the characteristics of easy operation, long lifespan, and beauty figures.

Satisfaction Ensured.
Manufactured to the Highest Quality Available.
With True Enhanced Performance.
Latest Technical Development.
The OKI MICROLINE 420 9-pin printer and its wide-carriage counterpart ML421 are a quantum leap forward in impact printer performance. Engineered for dedicated forms printing in the most demanding point-of-sale, automation and utility environments, ML420/421 printers are right at home in applications such as retail sales counters, medical facilities, automotive rental and repair shops, airline counters, financial departments and manufacturing sites. Their print speed and versatile paper handling make them ideal for the office, too.The ML420/421 sport features that give them a strong edge over their predecessors as well as the competition. 3-piece top cover provides easy access and unsurpassed break resistance. An internal cooling fan provides continuous airflow for the printhead - maximizing throughput productivity for long, unattended print jobs. Additional feed rollers provide precise forms handling and printed-character placement accuracy. The ML420/421 have a zero-tear feature that accurately positions continuous forms for a clean tear at the perforation, which eliminates wasted stock. You also get perfect results with single sheets, card stock, labels and envelopes, too. All without jams or smears. The OKI ML420/421 deliver the kind of productivity usually reserved for printers many times the price - starting with a super-fast print speed of 570 characters-per-second (in SuperSpeed Draft mode).

Print Method: 9-pin serial bi-directional. Print Density: 210 dots (whole dots) / 420 dots (half dots), Print Speed: 4.4 lines/sec. Reliability: 5 million lines (MCBF)
Feed Speed: 100mm/sec. Print Paper: Roll Model: high quality common white paper or impact paper roll, Width: 76.0 ± 0.5mm, OD: 75mm (max.), ID: 12mm (min.), Thickness of Per Layer: 0.06-0.085mm, total thickness d0.2mm, Ribbon:
Ribbon Cassette ERC 39 purple or black, Black Mark check: Black mark printed on the right of the front of note, its length 5mm, width 12mm (min); the reflection rate of black mark part: d10%, other part: >75%. Print Font: ASCII character set II, 5×7dots and 7×7dots, GB level I, II Chinese character library, 15×16dots
Interface: Parallel: 36pin Centronics, 8-bit parallel interface, BUSY/ACK handshaking protocol, TTL signal level. Serial: DB25 (female) socket, RTS/CTS protocol, baud rate: 9600bps. USB. Cash Drawer Control: DC24V, 1A, 6-pin RJ-11 socket, Power Supply: 24V/2A, Appearance Outline (LWH): 248×160×142mm

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