[RU Curl Adjustment] is displayed for the machine mounted with Relay Unit RU-509. Press [RU Curl Adjustment] to display the [RU Curl Adjustment] screen.
Curl adjustment is performed by Relay Unit RU-509.
You can perform curl adjustment using the following two methods:
Mechanical method: Decurl section strokes the paper to reduce curl. Select one of nine curl correction strength levels.
Humidification method: Use the decurl unit of Humidifier HM-102 to humidify the paper and adjust the amount of moisture contained in the paper after printing to reduce curl.
The curl adjustment can be set to a tray by registering paper conditions, including the curl adjustment, in a paper profile and recalling them from the paper profile.
For information about how to register paper conditions in a paper profile, refer to Paper Profile Setting: Registering the Paper Conditions.
The mechanical curl adjustment is effective for coated paper.
Both the mechanical and the humidification curl adjustment are effective for paper, except for coated types.
In addition to the decurl unit of Relay Unit RU-509, the other feeding parts also help to reduce curl by cooling paper after printing.
Press the [MACHINE] tab to display the [MACHINE] screen.
Press [RU Curl Adjustment].
Press a paper tray key under [Tray Setting] to select a tray that you want to set the curl adjustment.
Select an adjustment direction and a strength level for the mechanical curl adjustment.
Selecting [0] performs the mechanical curl adjustment to correct paper curl. If paper is still curled, the correction is required as the list shown below.
If you do not perform the mechanical curl adjustment, select [OFF]. Selecting [OFF] minimizes dirt with toner on printed paper.
Specify the adjustment value to be positive or negative based on the table below.
Curl Adjustment direction | Strength level |
---|---|
[+0.5][+1][+1.5][+2] | |
[-0.5][-1][-1.5][-2] |
Pressing [Reset] sets the mechanical curl adjustment value to [0] for all trays.
Specify whether or not to make the humidification curl adjustment.
To make the humidification curl adjustment, select [ON] for [Humidifier Setting], or select [OFF] when not.
While Humidifier HM-102 is mounted, pressing [Reset] resets the machine as described in the table below.
Contact your service representative if setting change for Plain or Fine is desired.
Paper Type | Weight | Humidification curl adjustment ON/OFF |
---|---|---|
Plain, Fine | 62 g/m2 to 300 g/m2 / 16 lb Bond to 68 lb Bond | ON |
Color Specific Coated-GL/ML/GO/MO | 62 g/m2 to 135 g/m2 / 16 lb Bond to 36 lb Bond / 16 lb Bond to 36 lb Bond | Unavailable |
136 g/m2 to 300 g/m2 / 37 lb Bond to 81 lb Bond / 37 lb Bond to 81 lb Bond | OFF |
Press [OK].
The screen returns to the [MACHINE] screen.