Adjusting Print Head Height - MIMAKI UCJV300 Series Operation Manual

2.2 Adjusting Print Head Height

Adjust the print head height to suit media thickness.
Range
Low
Middle
High
• Be sure to correct the dot position after altering the print head height.
Position"(P. 74)
• The print head height should normally be set to 2.0 mm. With inkjet printers, if the gap between
the print and media increases, the ink droplets may vaporize before they reach the media.
Vaporized ink will adhere to the print head nozzle surface, media, and cooling fan filter. The
amount of reflected light incident on the print head surface from the UV-LED unit will also
increase. Reflected light may cure vaporized ink adhering to the nozzle surface. This will
increase viscosity, reduce print quality, and generate print head faults.
1
On the LOCAL mode screen, select [MENU] > [Maintenance], then press the [ENTER] key.
• The Maintenance menu is displayed.
2
Select [Station] > [Carriage Out] > [Station Maint.], then press the [ENTER] key.
• The carriage moves over the platen.
3
Open the front cover.
4
Use the height adjustment lever to adjust the height.
• Set the height adjustment lever so that the desired height is at the top. If the lever is not set to the
correct position, problems such as media jamming and misting may occur, resulting in impaired
print quality.
5
Once adjustment is complete, close the cover, then press the [ENTER] key.
Gap between print head and platen
2 mm (default setting)
2.5 mm
Adjust the head height to this
position.
53
Chapter 2 Printing
3 mm
"Correcting the Drop
2