How can the head gap be adjusted?

Input the value directly. Recommended gap is 1.5mm (.015 inch)

If the head gap has been changed, the table height will be changed accordingly.

UJF-6042 has a function [GAP CHECK].
When [ON] is selected: If an obstacle is detected before or during printing, the table automatically moves down away from the obstacle.

  • Due to the table height continues to move down until the obstruction sensor does not react it, although the [HEAD GAP] has been set to 1.5mm,the actual head gap may become more than 1.5mm. Note that larger head gap more than 1.5mm may create ink mist issue or low quality print result, and it can be happened if sensor detect obstacle.
  • Obstruction sensor may not detect on colored or colorless transparent media. Please see [Q: Is there any caution to print on 3D-media?].

When [OFF] is selected: If an obstacle is detected before printing, the message “ERROR505 !WORK High” will be displayed and the operation has stopped.

UJF-6042 has a function [WORK SET].
If the thickness of the media is 100mm or less, you need to have an additional Table spacer and Vacuum table to make 1.5mm recommended head gap. Which spacer you need to use is depends on the media thickness.
ujf-6042 workset

When you change or remove Table spacer, height of the Vacuum table will be changed as below. Procedure to change height of the Vacuum table differs according to serial number
of the machine.

Serial number “O134B260” or before

table-spacer ujf-6042

Please refer to below table to choose required tools for each media thickness.

Thickness of the media Required tools
100mm~150mm
50mm~100mm Vacuum table + Table spacer 50
50mm or less Vacuum table + Table spacer 100

* When both a Vacuum table and a Table spacer are used, the allowed media weight to set on the table will be 4kg or less (including jig).

Serial number “O134B261” or later

table-spaces-ujf-6042-used-not-used

table-spaces-ujf-6042-used-not-used

Please refer to below table to choose required tools for each media thickness.

Thickness of the media Required tools
100mm~150mm
50mm~100mm Vacuum table
50mm or less Vacuum table + Table spacer 100

Method of Serial number confirmation

Method

  • Serial number of the machine is labeled on rear of the machine as below figure:
  • serial-number-confirm

Another method

  • It is possible to check Serial number of the machine with following procedure:

-> [MAINTENANCE] -> [INFORMATION] -> [SERIAL No.]

serial-number-confirm-other