Lexmark CS421
Using special characters in the username on any app that needs authentication, such as Device Quotas, prevents users from logging in.
Use the correct case for any Unicode character used in a username.
If the issue persists, then search for more information related to this issue or contact customer support.
防止多餘的碳粉散落在印表機內。廢棄碳粉回收瓶已滿時,請予以更換。
以快速簡便的程序更換成像套件請遵循下列有關如何正確更換套件的步驟。