20 Most Recent Lexmark T640n Laser Printer Questions & Answers

Service Fuser Error appears when the fuser does not warm to the required temperature. For this error on this Lexmark model T640n, the manual states you should power off the printer and power it back on, and if it is not plugged into a wall power point, change it to a power point mounted directly on the wall. Personally, I never got a Lexmark printer to work doing this, but this is in the manual. If this won't help, and the printer is under warranty, you should log it in with the servicing company.

If the printer is out of warranty, your next option is to change the fuser which costs around $350, so I think you would be better off getting a new printer unless you find a second hand one on Ebay.

Please, go through the printer's menus and make sure that the Ethernet port is activated.

You can also do this by printing out the printer's menus and checking the network configuration on the printer.

Please remove the cartridge and then re-install it to make sure it is seated properly. Then close the front cover door and make sure it latches completely. Now turn the printer back on.

Leading cause of paper jams or misfeed is debris / foreign objects that accidentally fell into the paper feed area. Please try this approach to fix the problem:

1. Remove the sheets of paper from the feeder.
2. Grab a flashlight and look inside the feeder for any debris or foreign objects.
3. If you're willing and physically able, you may also carefully turn the printer over. Any debris should just freely roll out from the feeder.
4. If feeder is clear, place the printer on the table. Open the printer cover and remove the cartridges.
5. Check the cartridge area for any obstructions in the paper path.
6. Close the printer cover.
7. Re-brick your printer by pulling out the power supply - the black box where the power cord is plugged into. Re-plug after 30 seconds.
8. When the printer turns on, reinsert the cartridges and load some paper. Try to print again to verify that the problem is fixed.

The 956.02 error on your Lexmark 792 printer indicates a system board issue. Troubleshoot it step by step: Power off the printer: Turn off the printer and allow it to remain powered off for 10 to 20 seconds before turning it back on. Check the code level: You can identify the current code level using either of the following methods: Method 1: Print the Menu Settings Page: Touch the Menu button on the printer's operator panel. Select Reports. Choose Menu Settings Page to print the page. Look for the code level under Device Information. Method 2: Use the Printer's Embedded Web Server (EWS): Open a web browser (such as Internet Explorer) and enter the printer's IP address. Click on Reports and then select Device Information. Download and install the latest firmware: If your printer's code level matches any of the following: For C792: LHS1.HC.P129 or LHS1.HC.P130 For X792: LHS1.MR.P131, LHS1.MR.P135, or LHS1.MR.P135a For X925: LHS1.HK.P136a Proceed to download and install the latest firmware. If your printer's code level matches any of the following: For C792: LHS1.HC.P131 or later For X792: LHS1.MR.P135b or later For X925: LHS1.HK.P136b or later Contact Lexmark Technical Support for service. Update the firmware: Download the latest firmware from the Lexmark Support website. Save the file and extract it to the same directory. Use the appropriate Authorization Keycode: For Lexmark C792: c792 For Lexmark X792: x792 For Lexmark X925: x925 Update the firmware using one of the following methods: Embedded Web Server (EWS): Open a browser, enter the printer's IP address, and select Settings > Update Firmware. USB utility: Follow the detailed steps for updating via USB flash utility. USB thumb drive: Refer to the steps for updating using a USB thumb or flash drive. FTP: Follow the steps for updating via FTP. If you need further assistance, please contact Lexmark Technical Support. When calling, have your machine/model type and serial number (SN) ready. 956.01 system board error ' Lexmark C792 Error Codes > Lexmark > X792dtse > Code 956.02 (printcopy.info)

If you're looking for a replacement for the IBM Lexmark Wheelwriter 1000, you might consider a typewriter like the Brother M-1000, the Olivetti Studio 45, or the Smith Corona SR8000. These typewriters have similar features and capabilities to the Lexmark 1000, and they're often considered to be good alternatives.