Fixing Section - Kyocera KM-1620 Service Manual

2-1-6 Fixing section

The fixing section consists of the parts shown in figure. When paper reaches the fixing section after the transfer process,
it passes between the press roller and heat roller, which is heated by fixing heaters M or S (FH-M or FH-S). Pressure is
applied by the fixing unit pressure springs so that the toner on the paper is melted, fused and fixed onto the paper. The
heat roller is heated by fixing heaters M or S (FH-M or FH-S) inside it; its surface temperature is detected by the fixing
thermistor (FTH) and is regulated by the fixing heaters turning on and off.
If the fixing section becomes abnormally hot, fixing thermostat (FTS) operates shutting the power to the fixing heaters off.
When the fixing process is completed, the paper is separated from the heat roller by its separation claws and is
conveyed from the copier to exit and switchback section.
Heat roller
Figure 2-1-17 Fixing section
FTS
FH-M
FH-S
FTH
EPCB
Figure 2-1-18 Fixing section block diagram
1 Left fixing unit
2 Right fixing unit
3 Press roller
4 Heat roller
5 Fixing heater M (FH-M)
6 Fixing heater S (FH-S)
7 Heat roller separation claw
8 Fixing thermostat (FTS)
YC6-1
PSPCB
YC6-2
LIVE
YC6-3
COM
2C9-2
AC
2-1-15