Question about Panasonic KX-FP121 Plain Paper Thermal Fax

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Fax machine wont work

One day it worked, the next it didnt. I turn on the machine, and all that shows in the display is 8 black squares where letters should be, such as the date, etc., and I cant get it to do anything. Any ideas what might be wrong?

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Re: fax machine wont work

Ur machine nothing problem just plug off for atleast 3 hour then re proge genral setting its wii b ok

Posted on Jan 17, 2008

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The machine doesnt work at all.the LCD screen shows the first 8 digits black and the other 8 blank.Can you help me?

This is a well known fault with fax machines and unfortunately the main board and or the power supply has gone faulty. there is no fix other than to replace them. Its probably not cost effective. look for a replacement machine.


Sep 29, 2011 | Samsung SF-515 Plain Paper Laser Fax

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How to set date and time

Set the date and time:
The current date and time are shown in the display when the machine is on and ready for use (Ready mode). The date and time will be printed on all faxes you send.
1. Press Menu.
2. Press Left Right Arrow to choose SET DATE & TIME and press Start/Enter.
3. Press Start/Enter when the display shows Date Format.
4. Press Left Right Arrow to select either Europe (day month year) or USA (month day year) and press Start/Enter.
5. Press Start/Enter when the display shows Date & Time.
6. Set the date and time. You can move the cursor by pressing Left Right Arrow.
7. Press Start/Enter when the date and time are correct.
1-AM 2-PM will display.
8. Press 1 or 2.

Dec 07, 2010 | HP 1050 Plain Paper Inkjet Fax

1 Answer


In addition to clearing memory this *will reset unit to factory defaults.
*****all of your programmed settings will be erased.

First power down the fax by unplugging, then power on.

After the power is turned on and "WAIT A MOMENT" is displayed, press & hold the STOP key.....until a normal display message shows.

*The above step allows the memory to be cleared! If this step is skipped clearing memory to factory defaults, (below) may not always work.

Press the "function" key followed by ALL of the following

9 * 8 # 7

wait until "diag mode" is showing.

Then press start button, followed by either * or #
until "memory clear" message is displayed.

then press start. If stressful "memory cleared" is shown.
proceed to re-program your fax machine settings.

Oct 20, 2010 | Fax Machines

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I need to program are fax machine to have are fax # on documents that are being sent to other fax machine's

1. Press <function> then "Down Arrow" on the <start> button until [ENTRY MODE] appears.
2. Press "Right Arrow" on the <start> button until [OWN NUMBER SET] is displayed.
3. Press "Right Arrow" [ENTER FAX #] will display.
4. Enter your fax number with the number keys (max. 20 digits). To insert space, press <#>, to enter "+" press <*>. To clear a mistake press <speaker> button.
5. Press <start/memory> button.
6. Enter your name by pressing number keys for each letter. Will display the capital letter for each of 3-4 letters to number, then number, then the lower case letters for each press. Use "Right Arrow" to go to next letter, if using the same number key (IE: B to A uses 1, use "right arrow" to go to next space). The #1 will give a space between words. (Max. 24 Characters).
7. Press <start/memory> [DATE&TIME SET] will display.
8. Press <stop> to exit.

Mar 19, 2010 | Sharp UX-B750 Inkjet Fax

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We have been a given a fax machine but we need to change the number on the top of the fax paper?

if is a l350!open the cover over the one touch speed dails,press data registration and set!It says user settings,press set,Scroll to unit tel nr,press set,type in your nr,press set and there u go!

Mar 11, 2010 | Canon FAX-L350 Plain Paper Laser

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I have a brother 4100 fax. how do I change the information on the fax transmission page? thank you

If your date and time are not set yet, press Menu, then 1, then 2 and enter the date and time, pressing Set after each entry. Enter time in 24-hour format so it will display AM or PM properly.

For other info at the top of your fax transmission page after date and time, such as your fax and phone numbers, and company name:
Press Menu, then 1, then 3 for Station ID info.
First put in your fax number and press Set.
Next put in your phone number and press Set.
Next press the buttons for your company name and press Set.
Press Stop/Exit to return to the date and time display.

Here is info on inputting text, from the manual:
Entering Text
When you are setting certain functions, such as the Station ID, you may need to type text into the machine. Most keys on the dial pad have three or four letters rinted above them. The keys for 0, # and don’t have printed letters because they are used for special characters.
By pressing the appropriate number key repeatedly you can access the character you want.
Inserting Spaces
If you want to enter a blank space, press once between numbers and twice between characters.
Making Corrections
If you entered a letter incorrectly and want to change it, press to move the cursor after the last correct letter. Then press Clear; all letters above and to the right of the cursor will be deleted. Re-enter the correct characters. Also, you can back up and type over incorrect letters.
Repeating Letters
If you need to enter a character that is assigned to the same key as the previous character, press to move the cursor to the right.
Special Characters and Symbols
Key - once - twice - three times - four times - five times
2 - A - B - C - 2 - A
3 - D - E - F- 3 - D
4 G H I 4 G
5 J K L 5 J
6 M N O 6 M
7 P Q R S 7
8 T U V 8 T
9 W X Y Z 9
Press for (space) ! “ # $ % & ’ ( ) + , - . /
Press # for : ; < = > ? @ [ ] ^ _
Press 0 for é à è ê î ç ë ö 0

Jan 11, 2009 | Brother IntelliFAX 4100 Laser Fax

1 Answer

Had a power outage, a day later i noticed fax would not copy or print out internal reports. Faxes received are unreadable. When I try to make 8 or so copies, it scans them but memory stays at 00% and it...

It seems that your fax machine has been damaged by a power "spike" You may or may not be able to get it to work again. You can try to re sequence the machine, by switching off, then removing both the power cord and the telephone cord from the wall. Wait 30 secs or so, then plug in the power cord and switch on. After the machine shows the "ready" mode in the display, then plug in the telephone cord. If this does not work, your machine is toast. Make sure in future to use a line conditioner for both the power and the telephone lines.

Jun 09, 2008 | Brother IntelliFAX 2800 Laser Fax

2 Answers

Storing Inbound faxes

easiest way is to remove the paper from the unit

Jun 06, 2008 | Panasonic PanaFax UF-8000 Laser Fax

2 Answers

Panasonic FP 1780 Copier. The copier has a flashing wrench that will not reset. I need advice on resetting the wrench.

Hold down 3 buttons in this order:
Paper Tray (Oval button), Recall (Diamond) and #3.
You should see an F2 in the display.
Enter #5 (Display should be showing F5)
Hit the Print Button. (Display should show C00)
Enter 70. (Display should show C70)
Hit the print button. (Display should show probably a 7 or 8)
Hit the print button again. The print button should go Red for a second and then back to green.

Wrench should be gone.

Next to get out of service mode
Hit Clear / stop button until the display shows F5
Then hold down 3 buttons in this order:
Paper Tray, Recall and the Clear Stop button.

You should now be back to working order.

If you have any questions or need parts, feel free to ask.
Have a good day.
Good luck.
Please remember to leave your rating if I have helped you.

Apr 15, 2008 | Fax Machines

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