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Monroe ClassicX Heavy-Duty Accounting Printing Calculator

4.7 (2) Write Review
Free shipping on orders over $29.99

$228.47

$ 94 .99 $94.99

In Stock
  • DON'T CALL IT A COMEBACK: After a several year hiatus, the popular ClassicX has finally returned! Accountants, financial professionals, and other heavy calculator users prefer this model over any other calculator made today. Exclusively featuring the ability to edit and reprint tapes, the ClassicX makes users quicker and more efficient by saving time from costly errors and incorrect entries
  • BUILT FOR SPEED & COMFORT: Equipped with our Monroe exclusive IKT technology (individual key switch), the ClassicX has the softest and most responsive keys of any calculator available today. Save time and frustration with its familiar layout; adding machine controls on the right and calculator controls on the left make it easy to use the functions independently or together. A 5 line-per-second print speed ensures that the ClassicX doesn't fall too far behind the user
  • UNCOMPROMISING PERFORMANCE & FEATURES: Monroe has been in business since 1912. We didn't get to where we are today by cutting corners. When you buy Monroe, you're committing to the best-quality, bar-none. Productivity-oriented features such as a dual 4-key memory, price/price mode, truncate, running subtotal, variable add mode, two-column addition, automatic crossfooting, and more help make your day easier and more efficient than ever. Work smarter, not harder, with a Monroe calculator
  • WHAT'S NEW: Our newest printing calculator model features an exclusive large, fluorescent blue display as well as time clock functionality
  • WHAT'S IN THE BOX: One Monroe ClassicX printing calculator, power cord, instruction manual, one calculator cover, one Monroe M33X ribbon cartridge and one Monroe 20lb. bond starter paper roll


Product Description

The Monroe Difference

As the inventor of the commercial printing calculator in 1912, Monroe has earned the trust of Fortune 500 companies, non-profit organizations and government agencies, including the likes of NASA. Even Hollywood has recognized the strength of the Monroe brand as its products have landed on major television networks and hit series including the show Madmen. Monroe Systems for Business are forerunners in producing technology tools that empower businesses, schools, and individuals to succeed. Headquartered in Pennsylvania, Monroe has a continued commitment to creating durable and reliable products, along with providing superior customer support known as ‘The Monroe Spirit'.

ClassicX Key Features

  • Velvet touch keys with individual key switch technology
  • Print speed of 5 lines per second
  • Large, fluorescent blue display
  • Slide switch to select running subtotal or grand total
  • Enclosed paper roll to protect from dust build up
  • Indicator lamp (making users aware of an active calculation)
  • Automatic total print above tear-off off knife
  • Hidden storage compartment for a spare paper roll and a twin-spooled ribbon to reduce downtime
  • Independent operation of multiplication and division capability, enabling the user to multiply and divide during addition and subtraction

How to Install Monroe Paper Rolls into a Monroe Printing Calculator

Step 1 Ribbon

Step 1

Turn OFF the calculator. Slide the printer cover off of the device. Put pressure on the cover at the top of the device, pushing off the cover.

Take note of the arms holding the paper roll in place. You’ll need to remove the paper roll core from the previous roll that you are replacing for a new paper roll.

Step 2 Ribbon

Step 2

Install the new paper roll.

Make sure that the paper sits so the paper is feeding up towards the sky and not down toward the ground. This will help keep the paper curling toward the back of the machine when you print.

Step 3 Ribbon

Step 3

Now it is time to feed the printer paper into the printer. Look for a slot along the top-rear of the printer. Then, feed the paper between the slot in the printer.

Turn ON the calculator. Press the “FEED” button on the printer so the paper continues to be fed through the device properly.

How to Install the Monroe M33X Ribbon Cartridge into a Monroe Printing Calculator

Step 1 M33X

Step 1

Turn OFF the calculator. Remove the printer cover. Remove paper from printer using the paper advance key.

Remove the new cartridge from the packaging, making sure to leave the ribbon lock in place to stabilize the ribbon during installation and make the process easier.

Step 2 M33X

Step 2

Install the right hand ribbon arm (Arm “A”) first and pivot the cartridge to engage the printer guide arm having it seated under metal tab “C”.

The left hand ribbon arm (Arm “B”) must be moved to the left to clear and engage the printer guide arm on the left hand side.

Step 3 M33X

Step 3

The rear body of the cartridge can now be pressed down to engage the printer spools and the ribbon lock will be disengaged from the cartridge and can now be disposed of.

Helpful Hint: If the back of the ribbon cartridge does not engage with the printer spools, turn the wheels on top of the cartridge to engage the cartridge pins with the holes in the printer spools.


Jim McKinnon
Reviewed in the United States on March 5, 2025
This product is not what it is famous for anymore. I purchased (unconfirmed) they both failed for different reasons.
Lorrie Gile
Reviewed in the United States on May 2, 2023
This product is hard to find! But not on Amazon! It was exactly what we needed. The keys did not stick and it worked perfectly.