Question about Canon P23-DH Calculator

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Printer malfunction The printer adds one number to each keypad input. Thus, 2 x 3 = 6 prints as 3 x 4 = 12. Or 2 x 333 = 666 prints as 3 x 444 = 1,332. Is there a solution for this problem?

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Re: Printer malfunction

Your`printer is poor,try to clen them with compressed air,and probably you may change some parts in the printer

Posted on Feb 05, 2008

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Your calculator is beyond repair. You can use it in no print mode ohly. The printer is not working, causing the error code.

Jan 20, 2016 | Canon P170-DH Calculator

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How to divide 1 2/3 by 3

First make 1 2/3 into a mixed fraction and then divide it by 3.
To make 1 2/3 into a mixed fraction, multiply the whole number, in this case, 1, by the denominator (the bottom number) and then add the numerator (the top number). Thus, we get (1*3+2)/3 or 5/3. Now we have to take 5/3 and divide it by 3. I was taught that in this case, dividing by 3 is the same as multiplying by 1/3. 5/3 x 1/3 = 5/9.

If you have access to a calculator you can always check this. On the calculator, do 2 divided by 3 and add 1. Now take that answer and divide by 3. Write down this answer. Now take 5 and divide by 9. Write down this answer. They should be the same.

Good luck.


Mar 17, 2015 | Calculators

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How to turn printing on and off?

PRINT KEY: To save paper you can only print what is displayed, even in non-print mode. Pressing after the entry of a number will print the entry with the symbol “#” even in non-print mode. Pressing will insert a separator into a number entry such as a code, date, etc. Separators are displayed as a period and dashes but printed as periods. MEMORY + KEY / PRINT ON / OFF KEY: Pressing selects print mode or non-print mode. Cause the calculator to operate in a display / print or display only mode, depending upon the calculator’s present state. “P” on the display: Print mode. “NP” on the display: Non-print mode. MEMORY – KEY / DECIMAL SELECTION KEY: Pressing sets the number of decimal places in the result. “F” on the display: The answer is displayed in the floating decimal system. “3, 2, 1, 0” on the display: Presets the number of decimal places in the answer. “A” on the display (Add mode): The decimal point in addition and subtraction entries is automatically positioned to the 2nd digit from the lowest digit of entry number. Use of the add mode permits addition and subtraction of numbers without entry of the decimal point. Use of , and will automatically override the add mode and decimally correct answers will be printed.

Aug 18, 2010 | Sharp EL-1611P Calculator

2 Answers


I bet your display is showing the correct ans, however your printer is printing incorrectly. Settings have nothing to do with your ans. You need your printer to be cleaned or have the printer replaced with a rebuilt unit. I can do this... 608-222-2484...

Oct 22, 2009 | Monroe 7130 Calculator

1 Answer

I cant make the decimal mode work (5000=50.00)

At the top of the keypad area, there is a switch with the following above it: +023F. Leave the switch in the + position and it should automatically place the decimal 2 postions, i.e. enter 5000 and the display will show up 50.00.

Apr 11, 2009 | Canon P23-DHV Calculator

1 Answer

Tring to subtract

With an adding machine, which is what this is, you enter the number followed by the + or -. If you wanted to add 10+20, you would enter 10 then + then 20 then +. This would show your answer. If you are using the printer and you wish to see the final answer on the paper, hit the * key and your answer will print.

If you are subtracting, let's say 100-40, you would enter 100 then + then 40 then - then *. Adding machines expect you to enter long strings of numbers to total. You may have both positive and negative numbers. So, you always enter the number first followed by either positive + or negative -.

You might have 100 + 25 - 37 - 1 + 50. For that enter:
100+25+37-1-50+ then *

Different than a calculator but the same for all "adding machines". This machine should really be called an adding machine since that is the kind of input it is looking for.

Jan 13, 2009 | Canon P23-DHV Calculator

3 Answers


your printer needs some mechnical adjustement for the print wheel and gear train by qualified service technician.

Feb 27, 2008 | Victor 1280-6 Calculator

1 Answer

Printer malfunction

I"m having the same problem. Just started this morning when I turned my calculator on. Any suggestions?

Nov 08, 2007 | Sharp EL-1197P Calculator

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