Thermal Control Method
The machine uses PID control (Phase control) and ON/OFF control.
Heating Temp., Press Temp. Detection
The contact thermistor (End) [1] detects fusing belt temperature. Contact thermistors (Center / End) [2] detect pressure roller temperature. Thermostat [3] is a safety switch for detecting malfunction of the heating pipe.
Temperature Control
The fusing lamp starts after machine power ON. When the fusing unit temperature reaches pre-rotation temperature, the pressure roller rotates to heat its surface equally and raise the fusing unit temperature up to the reload temperature.
The temperature increases to the paper feed temperature when printing.
The pressure roller rotates to prevent overshooting after printing.
Warming Up Mode | Fusing warming up begins after machine power switches ON. The fusing lamp heats without rotation until the temperature reaches the “pre-rotation start temperature” (to heat the grease between the heating pipe and fusing belt until the motor can rotate). |
Print Mode | The machine increases the fusing unit temperature to the “print ready target temperature”. |
Wait Mode | The fusing lamp and the fusing motor turn OFF after a certain time passes after the fusing print ready condition is reached. |
List of print speeds, temperatures and paper weights
Paper type | Print speed | Paper weight (g/m2) | Fusing Temperature | |
|---|---|---|---|---|
Thin | Standard | 56-65 | FC | 146 |
BW | 142 | |||
Standard 1 | Standard | 66-74 | FC | 149 |
BW | 145 | |||
Standard 2 | Standard | 75-90 | FC | 153 |
BW | 148 | |||
Recycled | Standard | 66-90 | FC | 149 |
BW | 145 | |||
Middle Thick | Middle | 91-128 | FC | 140 |
BW | 137 | |||
Thick 1 | Middle | 129-163 | FC | 147 |
BW | 144 | |||
Thick 2 | Middle | 164-220 | FC | 145 |
BW | 142 | |||
Special 1 | Standard | 56-90 | FC | 149 |
BW | 144 | |||
Special 2 | Middle | 91-163 | FC | 154 |
BW | 149 | |||
Special 3 | Middle | 164-220 | FC | 154 |
BW | 149 | |||
Special 4 | Standard | 56-90 | FC | 149 |
BW | 145 | |||
Special 5 | Standard | 56-90 | FC | 149 |
BW | 145 | |||
Envelope | Middle | - | 140 | |
Postcard | Middle | - | 147 | |
Label Paper | Middle | - | FC | 147 |
BW | 144 | |||
Coated Paper | Middle | - | FC | 147 |
BW | 144 | |||
Graph of Temperature Control
Details of the special temperature control operations
NO. | Purpose | Operation Details | ||
|---|---|---|---|---|
1 | Curl Reduction Mode | Enable this mode to reduce paper curl in a high-humidity environment. Enabling this function may decrease the print speed for the first print due to the pre-rotation of the fusing unit. For productivity-minded customers, assign a high value in the SP mode (SP1-113-012) to minimize the decrease in productivity (25 - 100%). Alternatively, assign a high value in the SP mode (SP1-113-006) to increase the temperature of the pressure roller (0 - 50 deg C). | UP | Enabling this mode forces a decrease in productivity and a rotation before printing to be done before starting any job in a high-humidity environment. Enabling this mode may shorten the life of the PCDU, Image Transfer Unit, and Fusing Unit by 75% when used in a high-humidity environment. |
2 | Water Drop Reduction Mode | Set pre-rotation time for the fusing unit in SP1-118-002 (0 - 99sec) to avoid water droplet patterns (droplets deposited on one side causing white patches to be generated on the other side during printing) in duplex printing. | UP | Enabling this mode forces a rotation before printing to be done before starting any job that involves duplex printing. Enabling this mode may shorten the life of the Fusing Unit by 77% when used in a low temperature environment. |
3 | Prevention of roller distortion during a long-term period of non-usage | When releasing sleep mode and maintaining standby (110 deg C) for a long time, the roller rotates for one minute at 136° every hour. | Default | In Sleep mode, no one-minute rotations are done. |