Single-Function: CS820 and C6160
Multifunction: CX820, CX825, CX860, XC6152, XC6153, XC8155, XC8160 and XC8163
This article provides a guide on how to set up an envelope tray (Tray 3) on the printer.
Setting up envelope tray for first time use
The printer firmware needs to be at least the FW4 (base=CXTPP.040.087 and engine=YK.040.E015) level code.
Check the printer firmware by referring to xref_Check_xref
for the steps.
If the printer firmware level meets the above requirements (at least FW4), skip Steps3 and 4.
If there is an SPR (Special Product Request) firmware on the printer, it needs to be at least at the FW 4 level. If the printer's SPR firmware is older than FW4, please contact Lexmark Technical Support for further assistance.
Follow the setup guide to position the input tray on the printer. Important!The envelope tray must be in the Tray 3 location.
Note:The tray part number 21K0787 is labeled on its box.
Download the most recent firmware for the printer. (Go to the
Lexmark support site
> type the printer model > click on the printer firmware link that is given > then download.)
Update the printer firmware by following the steps found in the README_Updating_Firmware document or from
and load it to the printer by following the procedures found in the README_Updating_Firmware document, or follow the same steps on
The envelope tray is now ready to use.
Still Need Help?
Have the following available when calling Lexmark Technical Support;
Printer serial number
LEGACY ID: HO4112