Lexmark MS71x, MS81x, MX71x, & MX81x – Broken or Missing Cartridge Plunger Causes Printing Noise, 31.46 or 31.66 Error, and Print Quality Issue |
Document ID:TE513 |
| 03/08/13 | Properties |
Overview
The cartridge plunger (A) is used to depress the button (B) on the cartridge. This opens the cartridge shutter, thus allowing toner to flow from the cartridge to the imaging unit when the auger motor turns.
![]() |
| Click Image to Enlarge |
The following symptoms and errors could appear should the cartridge bottle shutter fail to open or if the control panel cartridge plunger is broken or missing:
- Noise from the upper-left side of the printer that starts out sounding like a thumping sound, and which can later lead to very loud grinding noise; see the section Sample Noise below to compare the sound produced by your printer.
- Prior to hearing any grinding noise, you may notice some horizontal banding on every printout. Click here to see a sample print.
- Typically, you can print several pages before seeing an error message. You may see a 201.22 paper jam, yet no paper is stuck inside the printer. This means that the cartridge auger motor has detected an “underspeed” condition. This may occur if the plunger is broken or missing on the right-side control panel hinge.
- Eventually, you will likely see a "Re-install missing or unresponsive cartridge [31.46]" error after several pages print out. The same error may appear should you simply remove and reinsert the toner cartridge.
- At some point, if you have not already replaced the toner cartridge, you may see a "Re-install missing or unresponsive imaging unit [31.66]".
Play the sample audio files and compare them to your printer’s sounds. Are they same kind of noise?
| Type of noise | Click the Play button |
| Thumping sound | |
| Grinding sound |
Troubleshooting
Still need help?
Please contact Lexmark Technical Support if you need additional assistance. NOTE: When calling for support, you will be asked for your machine/model type and serial number (SN). If you need help locating these, click here.
Please call from near the printer in case the technician on the phone asks you to perform a task involving the printer.