Question about Lexmark Wheelwriter 3500 Typewriter

2 Answers

Code 120 I have a lexmark wheelwriter 3500 typewriter. Now it is showing a square box with a diagonal line across it and 121 code. I tried shutting off off and on and removing the internal AA batteries to reset typewriter, but it did not help.. Any suggestion.. please email your assistance to: [email protected] Your help is much appreciated.. Thank you

Posted by on

  • 1 more comment 
  • bmansurku Mar 28, 2008

    I need help soon to finish my work. thanks

  • mjones460 Nov 13, 2008

    The code says 121, I unpluged it, turned it off, put new batteries in it, sprayed the debris and tried the code, L, 001. Does not work for me. Any other suggestions?

  • dbowers52 Feb 05, 2009

    error 121



2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Lexmark Master
  • 3,594 Answers

If none of those things helped you need a printwheel sensor call a tech.


Posted on Nov 24, 2008


Tou can try pressing and holding the code key, press and hold the "L" key, release code type 001, release "L" key. Your keyboard may be bad this will select USA keyboard.

Good luck

Posted on Mar 29, 2008


1 Suggested Answer

  • 2 Answers


Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

In my tipewriter appears a square with a diagonal inside and the number 121 and it doesn´t works. What can I do?

You need a keyboard. I'll exchange it with a rebuilt one for 75.00 including shipping.


Sep 03, 2010 | IBM Wheelwriter 30 Typewriter

2 Answers

I have an IBM Wheelwriter 3500 by Lexmark. The icon in the window shows a box with an upper left to lower right slash with the number 121. It turns on, beeps and will not allow anything to work. Help!

Error Code 121 means the keyboard is not recognized, check the connectors from the keyboard to be sure they are plugged in properly.

Try this turn it off remove the batteries, wait 30 sec. turn on all settings will go to default, memory will be cleared for any fault code stored.

Tell us news.

Aug 26, 2010 | Office Equipment & Supplies

1 Answer

Will not advance or return to left margin.

215 is a pwintwheel not being detected. Try re installing the P/W look for debris in that area, if you have a compressed air source blow out that area. If these fail tou will need a P/W sensor, LED or both.


Apr 06, 2010 | Lexmark Wheelwriter 3500 Typewriter

1 Answer


I believe a 215 code is a bad printwheel sensor. You need a tech.


Mar 05, 2009 | IBM Wheelwriter 30 Typewriter

1 Answer

IBM WheelWriter 30 Series II

The 121 indicates a keyboard problem, See my tip under ww1000 also check the two flat connectors from the KB to the PC mboard.


Jan 15, 2009 | IBM Wheelwriter 30 Typewriter

5 Answers

IBM Wheelwriter 30 Series II Typewriter 6787

The book says turn the T/W off wait 30 seconds and restart, if condition returns call for service. However you might try removing the batteries and unplugging the machine waiting a few minutes and restarting. CAUTION ALL THE MEMORY WILL BE LOST!


Jul 16, 2008 | IBM Wheelwriter 30 Typewriter

1 Answer

IBM WheelWriter 3500

Try pressing and holding code key while pressing "L" release "L"
and type 001 release the code key. If this solves the trouble but it comes back on the next power up the keyboard is bad.


Mar 25, 2008 | Lexmark Wheelwriter 3500 Typewriter

1 Answer

Wheelwriter 3500 error code

This is memory cleared. Change the batteries, be sure to clean the battery contacts especally if they were corroded.

Dicky O

Oct 25, 2007 | Lexmark Wheelwriter 3500 Typewriter

1 Answer

The wheelwriter 3500, don´t write, only (_ 121), what´s that? what can i do?

You may have the wrong keyboard selected. Try holding down the code key while pressing the L(lang) key.Release the L key and continue holding down the code key while you type the keyboard code number. USA keyboard is 001.

I’m happy to help further over the phone at

Feb 27, 2007 | Lexmark Wheelwriter 3500 Typewriter

Not finding what you are looking for?
Lexmark Wheelwriter 3500 Typewriter Logo

Related Topics:

119 people viewed this question

Ask a Question

Usually answered in minutes!

Top Lexmark Office Equipment & Supplies Experts


Level 3 Expert

4345 Answers


Level 3 Expert

13434 Answers

Thomas F. Schneider

Level 3 Expert

2715 Answers

Are you a Lexmark Office Equipment and Supply Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides