5-17
Confidential
1.4.11 Not-disclosed-to-users functions (Function code 45)
Regarding the not-disclosed-to-users functions, the function setting can be executed by a
simple panel operation.
■ Changing return value of USB No.
<Function>
When the OS of the computer is Windows Vista
®
, and the computer is connected to a device
through USB 2.0 full speed, the OS might fail to get the serial No. of the USB device
depending on the computer and USB device. When the OS fails to get the serial No., the
return value may continue to increase every time the device is connected to the computer. To
avoid this problem, the return value of the serial No. can be fixed to “0”.
“*” is displayed at the end of the currently specified function in the LCD display.
<Operating procedure>
(1) Press the or button to display “MAINTENANCE 45” on the LCD in the initial state of
the maintenance mode. Then, press the OK button. The “USBNo.” will appear on the
LCD.
(2) Press the OK or Go button to select “USB No. = ON” or “USB No. = OFF,” and then press
the OK or Go button.
(3) “Accepted” is displayed on the LCD, and the printer goes back to the initial state of the
maintenance mode.
(4) Turn the power switch of the printer OFF.
LCD Description
USBNo. =ON Returns the serial No. of the device. (default)
USBNo. =OFF Returns “0”.
Note:
This mode is enabled when the power of the printer is turned OFF/ON after the setting
is done.
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