Fusing and delivery block
The fusing-and-delivery block fuses the toner image onto the print media and delivers the printed page
to the output bin.
Figure 1-43 Fusing and delivery block
Fusing-and-delivery block
Simplex paper path
Duplex paper path (duplex model)
Loop control
The product controls the loop (slackness) of print media to prevent print quality and media feed defects.
●
If the fuser sleeve rotates slower than the ITB, the paper loop increases and an image defect or
paper crease occurs.
●
If the fuser sleeve rotates faster than the ITB, the paper loop decreases and an image is stretched
because the toner image is not transferred to the paper correctly.
Two loop sensors located between the fuser sleeve and the ITB detect the paper loop. Accordingly the
DC controller controls the rotational speed of the fuser motor to keep the proper amount of paper loop.
●
Loop sensor 1: Detects the paper loop for heavy media.
●
Loop sensor 2: Detects the paper loop for plain media other than heavy media.
Table 1-8 Fuser loop sensors control
Loop sensor 1 Loop sensor 2 Fuser motor speed
OFF OFF Speed down
60 Chapter 1 Theory of operation ENWW
To Next Page
Loading...