GRAPHTEC SignJet JS310-25ES, Service Manual, Page: 76 / 141

8. Print Head Adjustment Procedures
69 JS310-UM-251-9370
8. Print head Adjustment Procedures
8.1 Setting the Print head Drive Voltage
The optimum drive voltage varies with each print head. Follow the procedure given below to register the EF values
printed EF data sheet; “Print head Efficiency Factor (EF) Data for XJ126 Print heads” into the print head package to
the printer.
CAUTION:
If the power supply has been turned off, remove the wet keeping frame, and then turn on the power supply.
EF value
(Recommend EF Data)
Serial number
Print head package
EF data sheet
(1) From the main menu, select [ Print Para ] and then press the ENTER key.
(2) From the submenu, select [ PH Volt Set ] and then press the ENTER key.
(3) Enter the EF values for PH1 to PH8 , and then press the ENTER key.
CAUTION:
Enter the “Recommend EF Data” when you register it into your printer.
Example: If the Recommend EF Data is 0.85, enter 0085.
Print head mounting position
(4) Return to the main menu, select [ Application ], and then press the ENTER key.
(5) From the submenu, select [ Curve of ink ] and then press the ENTER key.
(6) Select “0003 Xr2S JS”, and then press the ENTER key.