12 best desktop printing calculators

Product description

Mini desktop printing calculator with a big easy-to-read display and a host of features. This Desktop printing calculator prints 2.0 lines per second with 2-Color printing and Cost/Sell/Margin functionality. Check and Correct up to 150 steps and print after correction. Clock and Calendar function prints time and date. Sub –Total & Grand Total. Mark-up (MU) & Mark Down (MD) Keys. 3-digit comma markers. Tax Calculation. Shift Key. Percent Key %.

• Check & Correct function
• After-Print Function, print after correction
• Clock & Calendar function, print time & date
• Re-Print Function, print duplicates
• Cost/Sell/Margin function

User questions & answers

Question:	Is this a better English Manual I can download
Answer:	This calculator can print the date or time when entered manually. To print the date, say for example, October 25, 2019, you would enter 10.25.2019 followed by the diamond/number key. To print the time, say for example, 9:46 a.m., you would enter 9.46 followed by the diamond/number key. If you need to print the date repeatedly, I recommend saving it to the memory using the M+ key. Each time you need to print the date, press the M diamond key followed by the diamond/number key. At the end of the day, press the M* key followed by the CA key. This clears the date from the memory.
Question:	does it come with ink cartridge
Answer:	What replacement ink cartridges does it take?
Question:	does this have black and red printing
Answer:	Regular paper rolls. This in not a thermal printer.
Question:	Is it easy to read the screen in a low lit area
Answer:	- Press AC - Press and hold the set% key. The display will go clear and after a few seconds, it will show 0 again. - press TAX+ - Input the tax percentage that you want - press set% - Done:) (For example, if you want to set a tax rate of 9% start with AC , press SET% and HOLD (the display will go clear a few second it will Show 0 again , press TAX+, press 9 , press SET Done !! The 9% tax rate is stored Credit:: I copied some instruction from (Eduardo Hiroshi Tanaka Nakagaw)
Question:	Does this print date and time
Answer:	https://www.amazon.com/Printerfield-Compatible-Calculator-Printer-Ribbon/dp/B07FJ6WP91 Printerfield IR-40 (6 Pack) Compatible Calculator Printer Ribbon Ink Roller
Question:	What replacement ink cartridges does it take
Answer:	This comes with a power cord but you can also use 4 AA batteries.
Question:	what type of paper is used
Answer:	It uses AA batteries. The paper roll is a standard 2.25 inch roll.
Question:	How To Set Tax Percent
Answer:	faster than my fingers.

Product description

12 digit calculator is perfect for the everyday advanced user, especially in a busy office setting. Heavy duty durability is perfect for power users. Works both as a stand-alone desktop printing calculator or connected to your PC allowing you to send your calculation results directly to your computer program for easy analysis in spreadsheets, can also be used as a numeric entry keypad. Made of 45% recycled plastic. Contemporary black styling compliments any modern desktop decor. You can count on the fast and reliable 4.6 lines-per-second ribbon printer. Cost/sell/margin keys make for quick and easy profit margin calculations (simply enter two variables and the third automatically appears). Other functions include two independent tax keys, time/date, change sign key, item count, fully selectable decimal settings, selectable rounding switches, units price mode, grand total key, percent key, sigma key, backspace key, date/non-add key, and 4 key independent memory. Includes wireless USB. Compatible with Windows 98/98SE/ME/2000/XP/7 and Apple based operating systems. AC Power. 3-year manufacturer's standard warranty.

• EXTRA LARGE DISPLAY - Extra Large 12 Digit LCD Display
• FAST & RELIABLE- Equipped with a fast 2.3 lines-per-second ink roller printer
• ENVIRONMENTALLY FRIENDLY - This calculator is manufactured with 20% Recycled Plastic
• COST, SELL & MARGIN KEYS - These keys make for quick and easy profit margin calculations (simply enter two variables and the third automatically appears)
• Uses replaceable Victor ink roller IR40T

User questions & answers

Question:	Does this calculator have a sub-total key
Answer:	The size of the R8-2RS bearings is 1/2 x1-1/8 x5/16 Inch, ID 1/2, OD 1-1/8, Width (Thicknes) 5/16 Inch.
Question:	Where can I purchase rolls
Answer:	It depends upon your layout. You can use a 1/4" barbed coupling to connect to the larger main tubing line. Some people loop this line back to the larger line or you could end cap. You could also use a dripper or drip stake at the end of the line.
Question:	One of the reviews says it is slow. Does anyone else have that problem. I can add very fast and don't want lag time
Answer:	yes you can, as long as you have at lease 20lbs of water pressure all households have that.
Question:	New or used
Answer:	From experience this tubing does a good job of soaking the ground. Running it for about a half hour will moisten the soil about six inches on each side and down about four inches in my sandy conditions. Seems the further from the emitter the less wet the surface as it soaks in quickly. Down just a few inches it is moist. I have a meter. You can run two lines if needed. How do you cut the grass back there?

Product features

Victor 1208-2 12 Digit Compact Commercial Printing Calculator

This 12 digit calculator is perfect for the occasional user, especially in a small office or home office setting.

The 1208-2 features an extra large LCD display for easy viewing. Contemporary black and white styling compliments any modern desktop decor. This calculator is manufactured with 20% recycled plastic.

You can count on the fast and reliable 2.3 lines-per-second ink roller printer. Cost/sell/margin keys make for quick and easy profit margin calculations (simply enter two variables and the third automatically appears).

Manufactured with 20% Recycled Plastic

This calculator is manufactured with post industrial recycled plastic.

Extra Large Display

Easy-to-read large liquid crystal display with 12 digits.

2 Year Warranty

Victor offers the longest warranties in the industry.

Product description

Sophisticated features in a compact design, for the busy professional the Canon mp11dx-2 has the perfect combination of useful and sophisticated features, compact design, for the busy professional. This desktop, two-color printing calculator incorporates profit margin calculation keys that allow you to calculate the selling price or discount, based on the cost and desired profit margin. In addition, the built-in clock and calendar allows you to view the time and date on the display or print them out.

• A compact design, for the busy professional or tax time
• Be certain with your calculations with Double Check Function
• This desktop, two-color printing calculator incorporates profit margin calculation keys that allow you to calculate the selling price or discount, based on the cost and desired profit margin.
• High-speed ink ribbon printing system to ensure quick and efficient calculations.
• Cost/Sell/Margin.

User questions & answers

Question:	How long is the power cable for the mp-11dx
Answer:	Hi, I have measured the cable of the MP-11DX-2 that I have, and it is 48 inches long, or 4 ft., not the 6 answered previously.
Question:	What type ribbon for canon MP11Dx-2 have
Answer:	Hi! Your Canon MP11DX-2 calculator uses industry-standard adding machine ribbon. We hope this helps!
Question:	I have very small desk and hate the noise of roller printing models. Is there a calculator smaller than this that is ribbon printing
Answer:	Not to my knowledge.
Question:	Is it plug in or battery operated
Answer:	Plug in. 110 volts. It may have a battery backup for the clock if it has a clock.

Product description

Paperless printing calculator with a 12-digit display features a unique, powerful design that combines the power of a printing calculator with the functionality of a desktop calculator. Five-line, secondary LCD lets you scroll back and forth up to 300 lines to refer back to your previous calculations. Check and Correct function allows you to quickly modify and recalculate entries for fast, simple updates. Cost/sell/margin keys simplify profit margin calculations by allowing you to simply enter two variables to automatically show the third variable. Calculator also includes four-key memory, tax keys, change sign key, backspace key, rounding keys and more.

• Paperless printing calculator is eco-friendly with no paper and no ink.
• Entries and results are sent to a 5-line display which scrolls up or down to see the last 300 entries.
• Full-size keyboard includes tax, cost/sell/margin, grand total, backspace, and memory keys
• Quiet and Fast: No printer noise and no waiting for the printer
• Powered by AC Adapter

User questions & answers

Question:	How do you make the led screen readable? the background stays dark unable to see numbers completely
Answer:	Not sure. It didn’t work for my needs so I had to return it. Sorry.
Question:	The product description says it is ac powered with battery back up. Does this mean it is optional battery operated
Answer:	1/2 inch
Question:	how can i use it in india? is there any suitable 220 to 110 v converter for this product
Answer:	The opening for the tape seal will not be large enough to allow the stick to pass through. It will work if your bag is large enough to accommodate the stick while leaving enough bag to tape seal.
Question:	Can it be used at 220V
Answer:	No

Product features

Go Paperless with the Sharp EL-1901 Paperless Printing Calculator

This evolution of the printing calculator allows users to have the power of a traditional printing calculator while providing up to 300 lines of digital results. The all digital design is ideal for those that require the functions of a printing calculator, but do not need to save the printed results.

No Paper Needed

With no need for paper or ink, there is no waste created by use.

Whisper Quiet

All digital design allows for quiet operation, making it usable in any environment.

Stores 300 Entries

Records up to 300 entries that can be edited with Check & Correct function.

Tilt LCD Display

Adjustable tilt display allows for easy viewing of scrolling 5 line LCD screen.

Product description

CATIGA’s 30A Commercial Printing Calculator With its brilliant and colorful design, this 12-digit printing calculator brings new meaning to your everyday business and tax calculations. Sturdy and large buttons are easy to view and navigate, along with the tilt LCD Display screen that allows for easy readability. This calculator comes with cost/sell/margin functions to help with your profit calculations, along with tax functions for your business calculations. Not only is this product designed for convenient everyday use, but it’s 2 color ink printer also accentuates lines for easy-viewing. Simple but Brilliant Design: Tilt display allows for easy readability on desktop surfaces while large buttons are easy to navigate and help prevent typing errors. 2 Color Ink Printer: Color Ink prints at 2.03 lines/second in the colors Red and Blue. Not only is it fast and reliable, but it also helps increase readability so calculations can be made even more easily. Tax Functions and Business Calculations made easy: Business and tax calculations are made much easier and quicker with the Cost/Sell/Margin/Grand Total/Average/Tax functions on the calculator.

• Clear Display- This product is desktable friendly and comes with a 12 Digit LCD Display Screen.
• Easy to Read- Tilt LCD Display Screen with large buttons help prevent reading errors.
• Fast and Durable- Printer calculator is fast and durable with 2.03 lines per second and sturdy plastic keys.
• Color Printer- 2 Color (Blue and Red) ink printer helps prevent reading errors and uses replaceable ink roller IR-40T
• Useful Functions- Cost/Sell/Margin/Grand Total/Average/Tax functions help with easy profit margin calculations and business calculations.

User questions & answers

Question:	Can i get instructions on how to use
Answer:	this comes with an instructional folder...try youtube
Question:	Is it battery operated
Answer:	battery and electric
Question:	how do I order extra ink
Answer:	order cartridge thru amazon
Question:	What are the dimensions of the calculator? (I don't know what standard size refers to
Answer:	no comment..it doesn't calculate properly I will be returning this

Product features

CP-30A Professional Business Printing Calculator

With its brilliant and colorful design, this 12-digit adding machine brings new meaning to your everyday business and tax calculations. Sturdy and large buttons are easy to view and navigate, along with the tilt LCD Display screen that allows for easy readability.

This calculator comes with cost/sell/margin functions to help with your profit calculations, along with tax functions for your business calculations. Not only is this product designed for convenient everyday use, but it’s 2 color ink printer also accentuates lines for easy-viewing.

2 Color Ink Printer

• Printing Color: Color Ink prints in the colors Red, and Blue.
• Printing Speed: For 7-column printing, max 2.03 lines/sec. For 19-column printing, max 0.83 lines/sec.
• Not only is it fast and reliable, but it also helps increase readability so calculations can be made even more easily.

Colorful Design

Who says your office couldn't use a little bit of personality? We offer 5 colors for this model, letting you choose the one that fits your personality. Black, Silver, Purple, Teal, or Blue, which one speaks to you?

The Business Calculator You Need

This adding machine has Cost/Sell/Margin/Grand Total/Average/Tax functions for your business accounting needs.

Colorful Choices!

At Catiga, we believe in the power of color. We know that different colors will bring in a different kind of energy to your workplace. Choose the one that suits you!

Colorful Choices!

At Catiga, we believe in the power of color. We know that different colors will bring in a different kind of energy to your workplace. Choose the one that suits you!

Colorful Choices!

At Catiga, we believe in the power of color. We know that different colors will bring in a different kind of energy to your workplace. Choose the one that suits you!

Colorful Choices!

At Catiga, we believe in the power of color. We know that different colors will bring in a different kind of energy to your workplace. Choose the one that suits you!

Product description

Printing calculator features an extra-large, 12-digit display that shows crisp, sharp numbers for easy viewing. Two-color ink printer allows you to quickly see both positive and negative numbers to prevent reading errors. Dual-power operation lets you use plug directly into an outlet or use batteries for on-the-go calculations. Calculator also includes cost/sell/margin, tax calculation, clock/calendar function, decimal selector, currency exchange calculations and more.

• Extra-large, 12-digit display allows easy viewing
• 2-color printer helps prevent costly reading errors
• Dual-power operation for on-the-go use or at fixed location
• Also includes tax calculation, clock/calendar function and more

User questions & answers

Question:	does it have the auto shutoff feature
Answer:	P means it prints - np no print
Question:	Does it come with paper and ink
Answer:	There is a very small roll of paper, no batteries but this is the ink pad all ready installed.
Question:	How many decimal places does this calculator calculate to
Answer:	Yes. The last action is just another equals sign.
Question:	Is this made in the USA
Answer:	I use the standard paper roll 2 1/4 '' wide with a diameter of almost 3 " that I used in my old desktop Canon. The packaging info says the ink roller is type EA-772R and the paper roll is type EA-7100P.

Product description

12-digit printing calculator features a large, easy-to-read LCD that showcases sharp digits to help prevent reading errors. Large keys are appropriately positioned for fast, accurate data entry to help minimize input errors. Compact size offers convenient portability to keep this calculator with you wherever you need. Dual-power operation lets you use plug directly into an outlet or use four AA batteries for on-the-go use. Printing calculator also offers 150-step check and edit, after-print-function, re-print function, currency conversion, profit calculation, tax calculation, independent memory, double-zero key and more.

• Cost/sell/margin keys
• Check & correct up to 150 steps
• After print allows you to print after correction
• Re-print multiple copies.Print Speed - Lines / Seconds:1.6
• Tax and exchange calculations

User questions & answers

Question:	Does this calculator come with ink? What type of ink does it use? Where do we buy replacements ink
Answer:	I don't know the answer for sure. I can't imagine that it would not be able to do so, but since I am a volunteer selling this for a charity, my knowledge is limited.
Question:	Does this use batteries or have a power cord
Answer:	Yes
Question:	What is the width of the paper rolls? What type batteries
Answer:	I don't think less than and greater than is a thing on any calculator.
Question:	What is the speed
Answer:	This can't take notes. What you are referring to is probably a graphing calculator

Product description

Full-size, Heavy-duty Desktop Printing Calculator. Fully-featured desktop printing calculator with Change function to act like a cash register. Check & Correct up to 150 entries, print after making corrections, print duplicates, print Date & Time or show on display, separate Cost/Sell/Margin keys, Grand-total and sub-total keys and much more.

• Check & Correct function
• After-Print Function, print after correction
• Change Function
• Re-Print Function, print duplicates
• Cost/Sell/Margin function

User questions & answers

Question:	how do I sign up for the warranty
Answer:	It's used. Warranty doesn't apply.
Question:	does it use the black & red color ribbon? and is it operaterated with an electric cord what is difference in price per performace of these two calcer
Answer:	Yes it does use black and red color ribbon.
Question:	Que tipo de papel utiliza? Termal o regular??? What type of paper does it uses? Regular paper o thermal
Answer:	Regular
Question:	Does it works on batteries too
Answer:	I’m not seeing any place for batteries, so I would say no.

Product description

Whether in an office setting or at home, the EL2630PIII is the perfect 12-digit printing calculator for the occasional user. The extra-large display makes for easy viewing. The keys are engineered with a micro ban antimicrobial agent that reduces the growth of microbes and bacteria that cause discoloration and odors. You will always be able to count on the fast and reliable 4.8 lines-per-second ribbon printer. Other functions include: mark up key for calculating cost-sell-margin calculations, percent changes, automatic add-on/discounts calculations, automatic tax keys, clock/calendar function, conversion function, constants in multiplication and division, grand total key, change sign key, large-size add and subtract keys, fully selectable decimal settings, date/non-handed key, Item count, average key, selectable rounding switches and four key independent memory. AC power.

The Sharp EL-2630 printing calculator is an indispensable tool for both home and office. The EL-2630 displays an extra-large 12-digit LCD display for better viewing, and two-color ribbon printing (positive numbers in black, negative numbers in red) is enabled at about 4.8 lines per second on standard paper rolls.

The EL-2630 has four-key memory (memory plus, memory minus, and recall/clear) and special functions keys including grand total, adding mode, constant, double zero key, mark-up/profit-margin key, item counter, and rounding settings. Decimal settings are adjustable from floating to fixed decimal places (6-3-2-1-0). A calendar/clock function displays and prints the date and time.

What's in the Box

Calculator, power cord/AC adapter, two-color ink roller, paper roll, instruction manual, service information

From the Manufacturer

The functions on this calculator include discount rates (up to 4 digits) and gross profit functions with price margins up to 4 digits stored in memory. It features a bright green fluorescent display with 3 digit punctuation. 6-position decimal selector floating/fixed(F-6-3-2-1-0), constant (K) and add (A) operating modes to facilitate entry of dollar-and-cents figures. 1-touch % key and independently accessible 4-key memory, minus sign, error and memory indicators. In addition, it features a power switch with print/item count mode selector; constant/add mode, rounding, and grand total/rate setting selectors. Mechanical printer accepts 57mm (2-1/4") to 58mm (2-9/32") wide x 80mm (3-5/32") diameter paper rolls maximum. The printer has dimensions of 8-31/32" width x 13-5/32" depth x 2-25/32" height.

• Large 12-digit fluorescent display.
• Large 17 mm Digit size for easy reading of display.
• Fast 4.8 lines per second, two-color ribbon printer.
• Clock and calendar keys
• Uses replaceable Victor ink ribbon 7010

User questions & answers

Question:	how do you turn it off when not used
Answer:	If you push the button all the way to the left in the row where you select your decimal point placement, paper or paperless settings, etc. the power turns off.
Question:	How do you enhance the red/black print? Mine is getting very light. Is there a ribbon? Cartridge
Answer:	There is a ribbon. You should see the word “push” on the top plate above the paper feed slot. Push on it and lift it off. You will see the ribbon.
Question:	Does the clock and date remain on or is it auto off. Is there contrast control
Answer:	No contrast control and no clock display that I am aware of. Number display stays on.
Question:	This is my second unit that decided to "freeze". On/off switch won't work. Unplugging from power source does nothing. Anyone else experience this
Answer:	Not had that experience. Send the unit back for a replacement. Have had these units perform quite well and only have had issues after 3 or 4 YEARS of continuous heavy use. Usually the keys get "sticky" after that length of time.

Product features

Sharp EL-2630PIII

Features an extra-large fluorescent display for easy viewing. You can count on the fast and reliable 4.8 lines-per-second ribbon printer.

The Printing Calculator Essential to Your Needs

The EL-2630 printing calculator is an indispensable tool for both home and office. It displays an extra-large 12-digit LCD display for better viewing, and two-color ribbon printing (positive numbers in black, negative numbers in red) is enabled at 4.8 lines per second.

Time Calculation

Allows you to compute payroll sheets, time cards, billing time, and fees for professionals who charge by the hour.

Fast Printer

Efficient ribbon two color printer that prints at a speed of 4.8 lines per second.

Product description

Thermal printing calculator delivers extra-large print that is 2.5 times standard print size when the LCD is set on 10-digit display. Calculator generates standard print size when switched to the 12-digit display. Two-color backlit display only switches from 10-digit to 12-digit. Digits turn red with negative numbers and green for positive numbers. Calculator prints 6.0 lines per second in both sizes. Functions include cost/sell/margin, two independent tax keys, item count, grand total, time/date and three-key independent memory. Calculator runs on AC power only.

• Biggest Print on Tape Available, 150% times bigger than any other printing calculator
• Choose 12 Digits for Normal Print Size or Choose 10 Digit Mode for Big Print Size
• Large 2-Color Dot Matrix Display
• Requires Thermal Paper
• Super Fast 6.0 Lines Per Second Thermal Printer

User questions & answers

Question:	Is there a manual or set of directions available
Answer:	Yes. You can find a manual of 37 pages online on the website manualslib.com
Question:	How do you program it to add sales tax
Answer:	Press and hold the RATE key for 3 seconds, then enter tax rate. It's on Pg 15 of the manual
Question:	Is the actual calculator size 9.5"L x 7.5"W
Answer:	The Amazon webpage for this product has two dimensions: 7.5" x 9" and 12.25" x 9.5" x 4". The machine is 7.5" x 9". The box is 12.25" x 9.5" x 4". See, they don't tell you that.
Question:	Does the thermal printing fade over time, say one year
Answer:	I haven't noticed any fading from time, but you definitely don't want to use a highlighter or get any heat near it. It will definitely fade then. Our customer service group uses this type of calculator as does our donation group. I've yet to hear anyone declare the tapes unreadable, and we keep donation paperwork forever.

Product description

Paperless printing calculator with a 12-digit display features a unique, powerful design that combines the power of a printing calculator with the functionality of a desktop calculator. The large five-line, secondary LCD allows you to scroll back and forth up to 300 lines to refer back to your previous calculations. Cost/sell/margin keys simplify profit margin calculations by allowing you to simply enter two variables to automatically show the third variable. Battery-operated design with included batteries eliminates the need for an electric cord to use this calculator anywhere you need. Contoured keyboard helps you accurately input data for easy calculations. Calculator also includes four-key memory, tax keys, change sign key, backspace key, grand total with selector, rounding function and more.

• PRINTING CALCULATOR LOGIC - This is a printing calculator and DOES NOT function like a standard desktop calculator
• CORDLESS - This compact and paperless printing calculator makes it easy to transfer from one workspace to the next. Requires 4 AA batteries (included)
• 12-DIGIT DISPLAY - Combination of a 12-digit display and a 5-line scrolling LCD that stores up to 300 entries eliminates the need for paper and ink
• COST, SELL & MARGIN KEYS – These keys make for quick and easy profit margin calculations (simply enter two variables and the third automatically appears)
• MULTIPLE FUNCTIONS - Decimal, rounding, percent, sign change, backspace, and grand total functions help solve a variety of mathematical problems

User questions & answers

Question:	On this calculator. To do a simple subtraction, would you type in for example “7-1” to equal 6. Or would the calculation be “7+ -1” to equal
Answer:	It would be 7 (plus sign), then 1 (minus sign), then total for 6. It's like a plug-in calculator, not a battery calculator.
Question:	Will the calculator hold the entries and running total when powered off
Answer:	It will if you have not reset it. Once you hit the reset button it will erase all previous numbers
Question:	Just unboxed the critter and called Sharp. Apparently one cannot edit a number once it enters the stack
Answer:	Just subtract the wrong number you entered.
Question:	Falla el display superior, es verdad
Answer:	Me funciono perfectamente

Product features

Go Paperless with the Sharp EL-1501 Paperless Printing Calculator

This evolution of the printing calculator allows users to have the power of a traditional printing calculator while providing up to 300 lines of digital results. The all digital design is ideal for those that require the functions of a printing calculator, but do not need to save the printed results.

No Paper Needed

With no need for paper or ink, there is no waste created by use.

Whisper Quiet

All digital design allows for quiet operation, making it usable in any environment.

Stores 300 Entries

Records up to 300 entries that can be edited with Check & Correct function.

Tilt LCD Display

Adjustable tilt display allows for easy viewing of scrolling 5 line LCD screen.

Product description

• Printing calculator, 2 line/second, 12 digit LCD display. 2-color printer with large easy-to-read display
• Paper Width : 2 1/4 Inches and key rollover- key operations are stored in a buffer, so nothing is lost even during high-speed input
• Sign change, item total and grand total functions
• Cost-sell margin and right shift functions; tax and currency exchange functions. Full decimal system; floating, fixed (0-3) with round off
• AC adaptor or 4 AA Batteries required (best with Polaroid AA batteries)

User questions & answers

Question:	Does this print date and time
Answer:	This calculator can print the date or time when entered manually. To print the date, say for example, October 25, 2019, you would enter 10.25.2019 followed by the diamond/number key. To print the time, say for example, 9:46 a.m., you would enter 9.46 followed by the diamond/number key. If you need to print the date repeatedly, I recommend saving it to the memory using the M+ key. Each time you need to print the date, press the M diamond key followed by the diamond/number key. At the end of the day, press the M* key followed by the CA key. This clears the date from the memory.
Question:	What replacement ink cartridges does it take
Answer:	What replacement ink cartridges does it take?
Question:	what type of paper is used
Answer:	Regular paper rolls. This in not a thermal printer.
Question:	How To Set Tax Percent
Answer:	- Press AC - Press and hold the set% key. The display will go clear and after a few seconds, it will show 0 again. - press TAX+ - Input the tax percentage that you want - press set% - Done:) (For example, if you want to set a tax rate of 9% start with AC , press SET% and HOLD (the display will go clear a few second it will Show 0 again , press TAX+, press 9 , press SET Done !! The 9% tax rate is stored Credit:: I copied some instruction from (Eduardo Hiroshi Tanaka Nakagaw)