20 Most Recent Canon P23-DH Calculator Questions & Answers

Take a small cup and boil it in a microwave, then submerge the printing head (gold foil area) of the cartridge in the boiling water, please be careful doing this, The hot water will dissolve and clear the head, if no joy the print head is defective and you need to buy another one.

Hi, I had the same problem...but I fixed it. Here's how: At the very back of the calculater under the paper roller there is a very thin horizontal slot. Insert the tip of the paper roll into the slot, then press the paper advance button located on the top left hand sidw of the calculator until you see the paper. Guide the paper through the top slot and voila.

ok, have your calculator set on "on" press the "time/clock" button once, when date appears on calculator press the "M+=" and hold until first number on date flashes, enter the date you want, when done switch your calculator from "on" to "print". date should be saved. do the same for time.

Use the * key.


If this helps, Please rate me. Thanks, Patty

try pressing * key

Try removing the batteries in addition to reseting the calculator.

I recently purchased replacement ink roller for the Canon P23-DH 111 (2 pack) from Staples Business Depot.
It uses ink roller CP-13 .
Priced under $10

The Grand Total Key is the * on the far bottom right side. So, when you are adding/subtracting stuff, your input would look something like this: 426+ 532+ 958* I'm a current Business Technologies student at Job Corps and I JUST went over how to use this kind of calculator with my instructor. I hope this helped!