Roland TrueVIS VG2-640 User Manual page 231

Daily Print Head Check
NORMAL CL.
AB
7.
Press [▲] to display the screen shown below.
8.
Press [ENTER].
Printing of the test pattern starts.
9.
Check to make sure the dot drop-out or dot displacement has been corrected.
If the problem persists, try performing normal cleaning again. If the printer has been used for a long period,
dot drop-outs may not be fixed even after performing normal cleaning two or three times. If this is the case,
clean using a different method.
RELATED LINKS
・ P. 231 "When Normal Cleaning Is Not Effective"
230
2. Regular maintenance