2-14 Phaser 6121MFP Service Manual
Theory of Operation
Fuser Temperature Control
To fuse the image on the media, the heater lamps are turned On and Off as
necessary to bring the fusing temperature to an appropriate level. Thermistors are
used to detect the surface temperature of the Fuser roller.
Warm-up Control
Control is provided until the Fuser roller reaches the predetermined level.
Control Start Timing
• The power switch is turned On.
• A malfunction or media misfeed is reset.
• The main body leaves the power save mode.
• A door is closed.
Control Termination Timing
• The Fuser roller reaches a predetermined temperature.
• A malfunction or media misfeed is reset.
•A door is opened.
s6121mfp-113
Warm-up Control Wait Control Print Control Wait Control
Printing
Temperature
Warm-up
Complete
Temperature
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