Medium-Duty X Series Calculator
Monroe 122PDX 12-Digit Medium-Duty Accounting Printing Calculator with 4.3 LPS Printer
The Monroe 122PDX is a fast, straightforward medium-duty accounting printing calculator created for professionals who need dependable operation without unnecessary complexity. Its large 12-digit display, 4.3-line-per-second printer, professional keyboard, independent memory, input buffer, and two-key rollover make it an excellent choice for banks, credit unions, accounting offices, bookkeeping departments, and compact business workstations.
Fast, Straightforward Accounting Performance
The 122PDX focuses on the essential functions professionals use during daily accounting, bookkeeping, and financial calculations. Its clearly organized keyboard and oversized plus and minus keys provide a familiar adding-machine experience that helps reduce unnecessary steps.
A high-speed printer produces calculation records at 4.3 lines per second. An input buffer and two-key rollover allow the operator to continue entering figures while previous entries are printing, helping experienced users maintain a smooth working rhythm.
Monroe 122PDX Product Overview
12
Digit Display
4.3
Lines Per Second
4-Key
Independent Memory
2-Key
Keyboard Rollover
Key Features
- Fast printing: Produces clear calculation records at up to 4.3 lines per second.
- Large display: Shows up to 12 digits with a 12.5-millimeter digit height for clear viewing.
- Four-key independent memory: Store, recall, add, and subtract values independently from the active calculation.
- Non-add and date function: Print dates, account numbers, invoice references, or other identifying information without including them in the calculation.
- Selectable rounding: Choose standard 5/4 rounding, round up, or truncate based on the calculation.
- Item count: Confirm the number of entries included in a calculation or printed total.
- Input buffer: Continue entering figures while the printer finishes outputting previous calculation lines.
- Two-key rollover: Helps ensure rapid consecutive keystrokes are recognized and recorded.
- Professional keyboard: Oversized plus and minus keys support comfortable, familiar adding-machine operation.
- Compact medium-duty footprint: Delivers professional accounting performance without occupying the space required by a larger heavy-duty calculator.
Designed for Professional Accounting Environments
Banks and Credit Unions
Complete teller-line totals, cash verifications, account calculations, and other frequent financial tasks.
Accounting Offices
Produce clear paper records while completing reconciliations, totals, reports, and routine accounting calculations.
Bookkeeping Departments
Enter long lists of figures efficiently with fast printing, item counting, memory, and a professional keyboard.
Compact Workstations
Add professional printing-calculator performance to offices where available desktop space is limited.
Built for Speed Without Unnecessary Complexity
The Monroe 122PDX is designed for professionals who want fast printing and essential accounting functions in a straightforward machine. Its simplified control layout minimizes distractions and makes commonly used features easy to locate.
The input buffer and two-key rollover work together to support experienced operators entering figures at speed. Entries can continue while previous lines are printing, and rapid consecutive keystrokes are captured for a smoother, more efficient workflow.
Dimensions and Desk Placement
Without Paper Arms
Approximately 11.19 × 8 × 2.77 inches
With Paper Arms
Approximately 14.19 × 8 × 2.77 inches
What Is Included
Compatible Ribbons, Paper and Accessories
The updated 122PDX printer accepts Monroe M33X ribbon cartridges, P65M twin-spool ribbons, and standard 2 1/4-inch by 150-foot calculator paper rolls. Monroe supplies are recommended for consistent print clarity and dependable fit.
M33X Ribbon Cartridges
Convenient black-and-red cartridge ribbons compatible with Monroe X Series printing calculators.
View M33X RibbonsCalculator Paper Rolls
Choose premium 15-pound or 20-pound paper rolls for clean and readable calculation records.
View Calculator PaperAR12225 Paper Rolls
Premium 20-pound single-ply bond paper sized for professional printing calculators.
View AR12225 PaperCalculator Supply Kit
Keep replacement calculator paper and compatible ribbons available in one convenient supply package.
View the Supply KitMedium-Duty Elevation Wedge
Elevate the calculator to create a more comfortable working angle for frequent desktop use.
View the Elevation WedgeReplacement Paper Holders
Replace lost or damaged paper arms and restore the proper paper-roll position.
View Replacement HoldersMonroe 122PDX Product Video
See the Monroe 122PDX printing calculator and learn more about its keyboard, high-speed printer, essential functions, and professional applications.
What the Monroe Expert Says
Jon Gregull, Marketing Manager
Jon recommends the 122PDX for customers who perform a significant amount of accounting-style work but have limited desk space. Its compact medium-duty construction brings professional printing performance to smaller workstations.
Customers value its 4.3-line-per-second printing speed, wider plus and minus keys, and streamlined functionality. Together, these features create a faster and less complicated calculator experience for routine accounting work.
View the Monroe 122PDX User Manual
Review setup instructions, calculator functions, operating information, and maintenance guidance for the Monroe 122PDX.
Open the User Manual