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OkiData MicroLine 621 Serial Card - QuikShip Toner
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4 Products for the OkiData MicroLine 621 Impact Printer
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OkiData MicroLine 621 Serial Card

Price:  $103.89
Product Description
RS-232 Serial Card for OkiData MicroLine 621 Laser Printer, manufactured by OkiData

OkiData MicroLine 621 Ribbon Cartridge - 13,000,000 Characters
  OVER 100

Price:  $13.89
OkiData MicroLine 621 Ribbon Cartridge (OEM) 13,000,000 Characters
OkiData OVER 50

Price:  $26.89
OkiData MicroLine 621 Push Tractor (OEM)

Price:  $56.89

OkiData MICROLINE 621 Dot Matrix Printer Review


Out of the four printers in the OkiData 600 series, the OkiData MICROLINE 621 Dot Matrix Printer is probably the most cost effective. This is due to its high consumable page yield and reasonable overhead price. This extra wide unit is built to last under even the most dusty or harsh work conditions, and comes complete with its own three year warranty; ensuring that this impact printer will produce quality receipts and multi layer documents for years.


Four print speeds are selectable on the OkiData MICROLINE 621 Dot Matrix Printer. They include a super speed draft that clocks in at 700 characters per second, a regular high speed draft that, while printing in slightly better quality, processes at 600 characters per second, a commonly used utility speed of 450 characters per second that is probably the best value as far as speed to quality ratio, and a near letter quality speed of only 113 characters per second that achieves the maximum possible resolution.

The OkiData MICROLINE 621 Dot Matrix Printer operates on a 9 pin system, though its sister units in the series are available in 24 pin models. There are tradeoffs for both in that the 9 pin one is capable of operating in super speed draft mode while the 24 pin models are not, though the 24 pin units can print at resolutions of 360 x 360 dots per inch and the 9 pins are limited to a fairly pitiful 288 x 72 dots per inch.


The OkiData MICROLINE 621 Dot Matrix Printer is very costly for a dot matrix with these specifications. Some units that come very close to competing with the 621 as far as raw performance carry price tags half of that of this printer. The unit also operates with only 9 pins, whereas the higher end units in the 600 series, the OkiData MICROLINE 690 and 691, use a much faster and more precise 24 pin setup.

In general, dot matrix printers such as the OkiData MICROLINE 621 Dot Matrix Printer have inherent deficiencies when compared to even the cheapest inkjet or laser printer. Print speeds are incomparable, while print quality remains that of only the worst fax machine. The 621 is no different and should never be considered for common office work; only for multi layer printing or very harsh work environments.

Another annoying feature of the OkiData MICROLINE 621 Dot Matrix Printer that is “not really its fault” so to speak is its incredibly loud print volume. Users will feel like they are back in the eighties when they hear the 57 dBA hammering buzz of this impact printer. The device, interestingly enough, does make an attempt to buffer this problem by including a quiet mode option that reduces operating noise to 55 dBA.

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