The Led Head - Muratec MFX-C3400 User Manual

...the LED Head

Clean the LED head when printing does not come out clearly, has white lines or when text
is blurred.
There is no need to switch the MFP off to clean the lens.
1. Pull the lever (a) firmly to release the lock and then gently raise the scanner (b).
2. Press the cover release (a) and open the top cover (b) fully.
a
Maintenance > 134