Chapter 12 143
Troubleshooting
When an Error is Displayed Regarding Automatic Duplex PrintingError No.: 300 is Displayed
Cause Action
The correct media size is not
selected in the printer driver.
Check the Page Size setting from within your application software to
ensure that it matches the size of the paper loaded.
Check [Page Size] on the [Page Setup] tab in the printer properties dialog
box (Windows) or the [Page Setup] dialog box (Macintosh) to ensure that it
matches the size of the paper loaded.
The page sizes that can be used for Automatic Duplex Printing are Letter,
A4, B5, A5, and 5" x 7" / 127.0 x 177.8 mm. Check that the page size of the
loaded paper is correct.
Note
To print on both sides of the page manually, follow the procedure below.
On the [Page Setup] tab, clear the [Automatic] check box. Then try printing
again.
The manual duplex printing function cannot be used.
Cause Action
The machine is not ready. Ensure that the lamp on the Operation Panel lights.
If the lamp on the Operation Panel is off, turn the machine on.
While the Power Lamp is flashing green, the machine is initializing. Wait
until the Power Lamp stops flashing and stays lit.
When the Alarm Lamp lights orange, an error may occur in the machine.
For details on how to resolve the error, see “An Error Message is
Displayed on the LCD” on page115.
Machine is not properly connected. Ensure that the printer cable is securely connected to the computer.
zIf using a switching hub or other device, disconnect the machine and
reconnect it directly to the computer and try printing again. If
successful, the problem may have been with the device.
zThere could also be a problem with the cable(s). Replace the cable(s)
and try printing again.
The name of the machine being used
is not selected in the [Printer] pull-
down menu of the [Print] dialog box.
Select [MP950] from the [Printer] pop-up menu in the [Print] dialog box of
the printer driver.
If [MP950] is not displayed in the printer list, follow the procedure below to
confirm the settings.
1. Select [Edit Printer List...] from the [Printer] pop-up menu in the [Print]
dialog box. The printer list is displayed.
2. Check that [MP950] is displayed in the printer list.
If [MP950] is not displayed, install the MP Drivers again referring to the
Easy Setup Instructions for the operation.