Lexmark MC2640
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.
从定影器或双面打印部件移除被卡的纸张以继续打印。
了解当移除卡在标准接纸架中的纸张时打开哪些盖门。