Roland VersaUV LEJ-640 Service Notes page 254

4-8 CALIBRATION (FEEDING DIRECTION) (Referential Time : 20 min.)
This adjustment is for calibrating the feed amount of media. It allows the media to be fed in proper
amount by calibrating the variation in Grit Roller diameter. Calibration is made based on the value in
feeding media [PET-G].
Without proper calibration, it causes misalignment in the feed amount of media, and results in the prob-
lems such as white banding, banding of overlap or the dimension error of print result compared to the
original data.
Take-up unit must not be used during this adjustment.
While in service mode, the menu which involves a motion of Head UP/DOWN holds and keeps the head carriage at the
very top position, where the menu does not proceed any further.
By following the below steps, the base height position for service menu is set so that the menu can proceed.
The base height is preserved while in service mode, but once the service mode fi nishes, it is released. So, it must be set
again for the next time in service mode.
1.Select [I/S MENU] > [I/S CONTROL] > [HEAD UP/DOWN]
> [MIDDLE], and press [ENTER] key to move down the Head
Carriage.
2.Select [I/S MENU] > [I/S CONTROL] > [CAP] > [CLOSE], and
press [ENTER] key to move the Capping Unit up1 step.
Then press the [ENTER] key 2 times to Cap the Heads with
adjusting the position of the Head Carriage.
Turn on the sub power SW while pressing the Left,
1
Down and Right keys to enter the Service Mode.
Set PET-G fi lm on the machine.
2
I/S CONTROL
HEAD UP/DOWN
HEAD UP/DOWN
MIDLLE
I/S CONTROL
CAP
CAP
CLOSE
MENU
SERVICE MENU
4-46
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[ ]
[ ][ ]
ENTER
[ ]
[ ]
ENTER
+
MENU