April 2017
8-56
Xerox® VersaLink® B7025/B7030/B7035 Multifunction Printer
Launch Issue
Product Technical Overview
Fusing/Copy Transportation
Fuser Overview
The fuser module bonds the toner to the paper by applying heat and pressure. This process
melts the toner and fuses it to the paper.
The fuser module consists of a main heat roll, a fusing belt, thermostats, thermistors, and strip-
per blade.
NOTE: There are no spare parts in the fuser assembly. The fuser is replaced as an assembly.
Refer to
Figure 1
.
Figure 1 Fuser
Overview
Fusing works using a free belt nip fusing mechanism consisting of a heat roll, and with a fusing
belt in place of a pressure roll. The heat roll consists of a thin steel tube coated with teflon to
control the build-up of static and an anti-wear agent. The heat roll and fuser belt are in constant
contact during fusing,
Figure 2
. The stripper blade physically removes the paper from the heat
roll during processing. The heat roll receives drive from the main motor through a system of
gears. The fusing belt is driven by the friction applied from the heat roll.
The heat roll is heated by main and sub heat rods. The two rods are used in various combina-
tions depending on the operating conditions to achieve and even temperature along the entire
length of the heat roll.
The fuser temperature control is managed by two thermostats, the fuser non-contact (NC) sen-
sor and the fuser thermistor,
Figure 3
.
Figure 2 Free belt nip fuser
Fuser
Содержание VersaLink B7025
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