20 Most Recent Lexmark T644dtn Printer Questions & Answers

1. Turn off the printer. 2. Press and hold (check) and .(right arrow). 3. Turn on the printer. 4. Release the buttons when Performing Self Test displays. The message CONFIG MENU displays on the top line of the operator panel. 5. Select Reset Maintenance Count from the Configuration menu. 6. The message Reset Maint Cnt=Reset displays momentarily. Press (check) to reset. When the reset operation is complete, the menu returns to the Printer Setup Reset Maintenance Count Screen. Scroll down to the Exit Configuration Menu and Press Select to Return to Ready status.

I'm assuming you mean the maintaince counters... Turn off the printer. Press and hold the check and right arrow buttons on the front of the printer
Turn on the printer. Release the buttons when Performing Self Test displays. The message CONFIG MENU displays on the top line of the operator panel. Select Reset Maintenance Count from the Configuration menu. The message Reset Maint Cnt=Reset displays momentarily. Press Check to reset. When the reset operation is complete, the menu returns to the Printer Setup Reset Maintenance Count Screen. Scroll down to the Exit Configuration Menu and Press Select to Return to Ready status.

Click The Following Link For Instructions, Pertaining To Your, T-644 Issue On The:

LEXMARK T-644 error Web Site or copy/paste the following link into your Web Browser:

http://support.lexmark.com/index?locale=en&startover=y&userlocale=EN_US&question=t644+vertical+line+error&productCode=LEXMARK_T644&page=answers&detectedProductFacet=CMS-CATEGORY_REF.LEXMARK.PRODUCTS.MONOLASER.LEXMARK_T644&searchid=1301004675161#1

843.01 = Service Scanner—flatbed mechanical failure.

Basically the manual says to check the ribbon cables inside the scanner and the shafts that the motor runs 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)