3-25
Preventive
Maintenance
1
Cleaning web roller 120K 120K 120K
2
Fuser lamp
240K 240K 240K
3
Heat roller
240K 240K 360K
4
Heat roller bearing 600K 600K 600K
5
Heat-insulating bushing 360K 360K 360K
6
Heat roller gear
600K 600K 600K
7
Thermistor
240K 240K 240K
8
Separation finger
(upper)
120K 120K 480K
9
Separation finger
(lower)
120K 120K 120K
10
Pressure roller
480K 480K 480K
11
Pressure roller
bearing
600K 600K 600K
12
Web pressure
—
—
1200K
roller
13
Fuser entry guide
—
—
1200K
1
3
8
9
10
7
2
4
5
6
11
4. Fuser unit
Part name
Item
Cycle
D250 D350 D450
D350H D600
13
12