Roland DX4 printhead Installation

Roland DX4 printhead installation

Part One: Remove

Turn on the SUB POWER SW and perform the [PUMP UP] from the [INK CONTROL] menu.When it finishes, the SUB POWER will be automatically turned off.

Turn on the SUB POWER SW while pressing the Left,Right and Down keys to enter the SERVICE MODE.

Input the HEAD RANK of the head which is going to be installed.
In [HEAD RANK] menu, select the Head No. of the head that you are going to replace and input the HEAD RANK written on the new head.

Input the HEAD RANK by selecting the digit with the Left and Right keys, and changing the parameters with the Up and Down keys.

Press the [ENTER] key to save the settings.

** The left Head is [HEAD 1].

Remove the I/S COVER.

Select [CAP&WIPER CTRL] > [CAP] > [OPEN], and press the [ENTER] key. The CAPPING UNIT moves down and allows you to move the HEAD CARRIAGE by hand.

Turn off the SUB POWER SW, and then turn off the MAIN POWER SW.

Remove the CARRIAGE COVER.

Remove the DAMPER PLATE and remove the 2 INK Dampers from the HEAD which will be replaced.

Remove the HEAD BOARD COVER (the transparent cover).

Disconnect the 2 flexible cables from the HEAD.

Remove the SPRING, and remove the 3 screws fixing the HEAD in order as shown in the figure.Then, pull the HEAD towards the front and pull it up to remove it.

Remove the HEAD from the ADAPTER and fix the new HEAD to the ADAPTER.

Part Two: Install

Install the HEAD to the head carriage and fix the 3 screws temporarily. Then, fix the SPRING and tighten up the 3 screws in order as shown in the figure.

Connect the 2 flexible cables to the HEAD BOARD.Do not connect cable to the wrong connector.

Fix the HEAD BOARD COVER temporarily.

Fix the 2 INK Dampers to the head.

Move the HEAD CARRIAGE by hand to the lock position.

Turn on the SUB POWER SW while pressing the Left,Right and Down keys to enter the SERVICE MODE.

Select [CAP&WIPER CTRL] > [CAP] > [UP], and press the [ENTER] key to move up the capping unit 1 step.Check that the Guides at the two ends of the capping unit align with the Guides at the two ends of the head carriage. Then press the [ENTER] key twice more to cap the heads.

From the menu (NOT from the service menu), select [INK CONTROL] > [HEAD REPLACE], and press the ENTER key.

Enter the SERVICE MODE and perform the following adjustments.

1. THERMISTOR CHECK

2. HEAD ALIGNMENT

3. HEAD INFORMATION CLEAR

4. CAP HEIGHT CHECK

5. TOOL / CROP MARK SENSOR POSITION