Epson Stylus Pro 3800/3800C/3850/3880/3885/3890 Revision C
ADJUSTMENT Standard Adjustment 222
5.3  Standard Adjustment
5.3.1  RTC&USB ID
 Purpose
Whenever the main board is replaced, this must be carried out to initializes the 
RTC and write USB ID on the new board.
 Procedure
1. After replacing the main board, turn the printer ON.
2. Start up the Adjustment Program and select [RTC&USBID].
3. Check or enter the date and time displayed on the screen.
4. Enter the 10-digit serial number of the printer. USB ID is automatically 
created according to the serial number.
5. Click [Write] to write RTC&USB ID in the NVRAM on the new main board. 
6. Click [Next] to display a confirmation screen. Click [Check] to display all the 
information written on the NVRAM on the screen. Confirm the information 
and click [OK].
7. Click [Finish]. 
Figure 5-11.  [RTC&USB ID] Screen (1)
Figure 5-12.  [RTC&USB ID] Screen (2)
C A U T I O N
A communication error will occur if the printer is turned OFF/ON 
after the USB ID is changed, because the PC recognizes the USB as 
a different port. To carry on with other adjustments using the 
program, restart the program and use a different port.