4-65
Diagnostic Tests and Utilities
HP Designjet 4000/4020 Printer Series Service Manual
3. Set SN
The purpose of this Service Utility is to set the Serial Number of the Printer.
Perform the Set SN utility as follows:
1 In the Service Utilities submenu, scroll to "Set SN" and press Enter.
2 The Printer will display the current Serial Number and the new Serial
Number of the Printer. Use the Up and Down keys to go through the digits
and press the Enter key to go to the next digit. You can press the Cancel
key at any time to exit the utility without making any changes.
If the Serial Number or the Part Number cannot be read, the Front Panel will
display System Error Code 74:00. For more information on
troubleshooting this error code, refer to Page 2-20.
3 Once the new Serial Number has been entered, the Front Panel will display
the Serial Number and Model Number of the Printer. Press the Enter key to
confirm the Serial Number or the Cancel key to exit the utility without
making any changes or the Back key to modify again.
4
If the new Serial Number cannot be set, the Front Panel will display
System
Error Code 74:00
. For more information on troubleshooting this error code,
refer to Page 2-20.
5 If the utility exits correctly, OK will be displayed on the Front Panel.
Press Enter to
go to next digit
Press Cancel
to exit
Use UP and
DOWN keys
to go through
the digits
Press Enter
to confirm
Press Cancel
to exit
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