Setting the printer driver
If an expansion tray unit has been installed, after installing the printer driver, change the settings of the printer driver by the following procedure.
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- To perform this procedure, you will have to login to the PC as a user with administrator privileges.
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- If you are using B822, refer to the PCL printer driver section.
For Windows PCL printer driver
Open "Printer folder".
- Right-click the [OKI *** PCL6] icon (where *** is your model name) and select [Printer Properties].
- Select the [Device Options] tab.
If using a network connection, click [Get Printer Settings].
If using a USB connection, input the number of trays minus the multi-purpose tray (MP tray) in [Available Trays].
For example, if three expansion tray units are mounted, the usable trays are trays 1/2/3/4, so enter "4".

- Click [OK].
For Windows PS printer driver
Open "Printer folder".
- Right-click the [OKI B842 PS] icon, and select [Printer Properties].
- Select the [Device Settings] tab.
If using a network connection, select [Get installed options automatically] in [Installable Options], and click [Setup].
If using a USB connection, select the relevant value in [Available Trays] of [Installable Options].

- Click [OK].
For macOS PCL printer driver
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- Depending on the timing when the printer is added, the information for the expansion tray unit may have been set.
- Select [System Preferences] from the Apple menu.
- Click [Printers & Scanners].
- Select your model, and click [Options and Supplies].
- Select the [Options] tab.
Select the total number of trays from [Available Trays], and click [OK].

For macOS PS printer driver
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- Depending on the timing when the printer is added, the information for the expansion tray unit may have been set.
- Select [System Preferences] from the Apple menu.
- Click [Printers & Scanners].
- Select your model, and click [Options and Supplies].
- Select the [Options] tab.
Select the total number of trays from [Available Trays], and click [OK].

