I JUST WANT TO SET THE CLOCK AND CALENDER ON A CANON P23-DH II

Try these ideas. It is a very broad generic E for 'Error'.

Solved: P23-DH V calculator displaying an E (error?)

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How to Troubleshoot the Canon P23-DH V

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Sep 26, 2017 - Press the "CE/E" button if the calculator is no longer allowing you to input data and "E" is displayed on the screen. This occurs when too many ...

Follow the instructions at the beginning of the P23-DH manual.

Follow the instructions at the beginning of the manual.

take cover off take out ink cartridge and take with to store or get some ink kit and reload

Press and hold the ClockDate Set button for three seconds until the display shows the date with the first digit blinking. Enter a two-digit month, a two-digit date, and a four-digit year, followed by the ClockDate Set button.

Press and release the ClockDate Set button. Press and hold it for three seconds until the display shows the time with the first digit blinking. Enter a four-digit time, press AM/PM as appropriate, then press the ClockDate Set button. Press CE/C to finish and return to calculation mode.

You can download a copy of the manual from the manufacturer's web site at http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&tabact=DownloadDetailTabAct&fcategoryid=346&modelid=15431

Push the button with the clock and calendar, this is directly over the 'cost' button, to display the date or time. Then use the 'Time set' button (this is the one for Memory - Plus - Equal). Hold the 'Time set' button down until the first figure blinks then release it. Use the number buttons to change the setting. When you have gotten the correct date or time entered oress the 'Time Set' button again.

Although it is only printed with 'Time Set' the button works for the date just as well.

Download the user manual (P23-DH III) from here:
http://rapidshare.com/files/181603396/P23DHIII.PDF.html

I don't think the P23-DH has a calendar/clock mode. I have found the instructions for setting date and time for the P23-DH V. If your calculator does not have [Calendar/Clock], [Time Set], and [AM/PM] keys, you cannot set the date and time.

To set date:
1. Press the [Calendar/Clock] key once
2. Press and hold the [Time Set] key for three seconds
3. Enter the date in MMDDYYYY format
4. Press the [Time Set] key
5. Press the [C/CE] key

To set time:
1. Press the [Calendar/Clock] key twice
2. Press and hold the [Time Set] key for three seconds
3. Enter the date in HHMM format, press [AM/PM] key if necessary
4. Press the [Time Set] key
5. Press the [C/CE] key

First Remove the clear tape from the battery compartment on the bottom. Second take a paper clip and press and hold the reset button for 5 seconds. Then press the calendar/clock button. Next press and hold the time set button (M+/=) until the first number starts flashing. Type in the date and press time set (M+/=) until it stops flashing. Then press the calendar/clock button. Next press and hold the time set button (M+/=) until the first number starts flashing. Type in the time and press time set (M+/=) until it stops flashing.

Slide the on/off switch all the way to the left to the "Rate Set" position. Now enter the appropriate tax rate. When entered, slide the switch to the desired "On" or "Print" position and CE/C before your first calculation. You should now be all set to go.