Casio HR-170RC Printing Calculator 12-Digit Display - Two-Color Print

Our review of the Casio HR-170RC finds it best suited to accountants, bookkeepers and anyone doing regular tax or ledger work who needs a reliable, compact printing calculator. The single biggest reason to buy is its combination of a clear 12-digit display and two-color printing that reduces reading errors when reconciling positive and negative amounts. It balances thoughtful business features with portable convenience, so it works as a desktop backup or a travel device for professionals who prefer printed records.

Key Features

• Large 12-digit display: A crisp LCD with well-spaced plastic keys makes long entries easier to read and reduces input mistakes during repetitive tasks.
• Two-color printing: The black-and-red output clearly separates positive and negative values so ledgers and tax notes are simpler to scan.
• Check and correct up to 150 steps: A long review buffer lets users correct earlier entries before finalizing printed records, which cuts rework.
• Cost/sell/margin and tax functions: Dedicated keys speed common business calculations so routine markups, margins and tax adjustments are faster.
• Clock and calendar printing: Time and date stamps add context to printed tapes for record keeping and audit trails.
• Dual-power operation: Use the plug-in adapter for long sessions or four AA batteries for portable use when needed.

Who It's For

The HR-170RC is aimed at small business owners, accountants and bookkeepers who still rely on printed tapes for quick audits, reconciliations and tax work. Its clear display and dedicated business keys make it practical for everyday office use and field visits where a compact printed record matters.

Users who need advanced scientific functions, graphical displays or full bookkeeping software integration should look elsewhere; this model focuses on dependable arithmetic, printing and business shortcuts rather than complex data transfer or advanced financial modeling.

Pros & Cons

Pros

• Reliable two-color printing that reduces reading errors on tapes and receipts.
• Long check-and-correct capability for reviewing up to 150 steps of input before printing.
• Dedicated cost/sell/margin and tax keys which speed common business tasks.
• Compact build with dual-power option makes it easy to move between desk and remote sites.

Cons

• Some customers report mixed battery life and a few mention the on-device instructions are not universally helpful.
• A minority noted occasional printer errors, so users who need flawless continuous printing should keep spare paper and test before heavy jobs.

Specifications

Brand	Casio
Display	12-digit LCD
Printing	Two-color (black and red)
Review buffer	Check & correct up to 150 steps
Functions	Cost/Sell/Margin, tax, grand total, sign change, decimal selector
Power	AC adapter or 4 AA batteries
Extras	Clock and calendar printing, reprint & correction

Our Verdict

The Casio HR-170RC is a solid value for anyone who needs printed tapes, straightforward business functions and a clear display in a compact package. It is particularly good for bookkeeping and tax work where two-color clarity and a long check buffer reduce errors; buyers who need advanced connectivity or continuous heavy-duty printing may want to consider a higher-end model.

Frequently Asked Questions

Does it print negative numbers in a distinct color?
The two-color printer prints in black and red so negative values are easier to spot on the tape.

Can I power it with batteries for portable use?
Yes, the calculator accepts four AA batteries for on-the-go use and also works with an AC adapter when at a desk.

How useful is the check and correct feature?
The review and correction buffer holds up to 150 steps so you can review and adjust earlier entries before final printing, which helps avoid reprints.