4026-0XX
Fuser Operation
Fuser Mode | Printer Action |
|
|
When the printer power is turned on | |
| the fuser lamp turns on until the hot |
| roll temperature reaches approxi- |
| mately 172 degrees centigrade. |
|
|
Standby Mode | The hot roll temperature reaches |
| approximately 156 degrees centi- |
| grade. If this temperature is main- |
| tained for three minutes, the printer |
| switches to low temperature standby |
| mode and the hot roll is maintained |
| at 112 degrees centigrade. |
|
|
Print Cycle | The hot roll is maintained at 172 |
| degrees centigrade if the engine |
| board receives a print command |
| from the controller board. |
| Note: The hot roll temperature is |
| slightly higher on models 06C and |
| 06F during the print cycle. |
|
|
Fuser Control |
|
The thermistor detects the hot roll temperature and sends a corresponding analog signal to the engine board. The engine board turns the lamp on or off depending on the analog signal from the thermistor.
If the thermistor detects a high temperature failure but the fuser lamp does not turn off, the thermal fuse opens (thermostat on models
