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White desktop printing calculator with large black keys and a 12-digit fluorescent display

Canon

Canon MP21DX 12-Digit Two-Color Printing Calculator

SKU CH-7JAW-B8QCA MPN MP21DX

A 12-digit desktop calculator prints 3.5 lines per second in black and red on a 57 mm paper roll

  • Product typeCalculators & Accessories
  • Key featuresLarge keys well-spaced for eas
  • Product colorBlack
  • 12-digit fluorescent display reads clearly in low light
  • Two-color printing shows positive figures in black and negative in red
  • 5 lines per second output speeds through long calculations
  • Large well-spaced keys reduce entry errors during extended use
  • Heavy-duty metallic paper holder keeps rolls aligned for reliable feeding

Desktop printing calculator for office use

The Canon MP21DX is a 12-digit desktop printing calculator designed for daily office and educational tasks. Its fluorescent display remains readable in low-light conditions. A two-colour ribbon prints positive figures in black and negative figures in red at 3.5 lines per second. Large, well-spaced keys reduce entry errors during extended sessions.

Printing speed and paper constraints

The mechanism produces 3.5 lines per second using a 57 mm plain paper roll. Only two-colour output is supported, so colour coding beyond black and red is not possible. The printer is not suited for high-volume continuous printing or multi-part forms. AC power is required, so the unit cannot operate on batteries or in locations without a mains outlet.

Check power and paper before ordering

Verify that a standard AC outlet is available at the intended workstation. Confirm that 57 mm paper rolls match your existing supply or storage. The calculator weighs approximately 4 lb and measures 3.7 in by 9 in by 12.2 in, so ensure the desk surface can accommodate its footprint. No battery backup or portable operation is provided.

How it compares

Measured against everything we stock in Calculators & Classroom Supplies, at today’s prices. Recalculated every night.

Price $105.99
Pricier than about 90% of the 1,255 comparable items (median $25.99).

Specifications

Product
Brand nameCanon USA
Model nameMP21DX
Product typeCalculators & Accessories
Product colorBlack
Size & build
Shipping weight2.22 kg
Package size376 × 302 × 142 mm

Questions about this item

Which version of the Canon MP21DX should I choose for standard desktop use?

The MP21DX is offered as a single 12-digit model with a two-colour ribbon and AC power, so there is no alternative capacity or power option to select.

What does the 3.5 lines-per-second print speed mean when I am printing a column of figures?

At 3.5 lines per second the ribbon printer produces a continuous strip of numbers fast enough to keep pace with normal data entry without pauses.

What interface does the calculator use and what does it limit?

The calculator connects only to mains AC power; it has no data port, so printed output is the only way to transfer results.

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