Replacing the Printhead on the DTG Viper - Garment Printer … · Replacing the Printhead on the...
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Replacing the Printhead on the DTG Viper Tools Required: #1 Phillips screwdriver, Tape (gaffer’s or masking,not duct) 1) Release the carriage from the capping station. Bring the carriage close to the center of the machine. Fig. 1 2) Use four long pieces of tape to secure the carraige rails on both sides of the printhead, and on both rails. This is to prevent the three pieces of each rail from separating during reassembly. Leave the tails of the tape hanging down, as seen in Fig.1, to facilitate removal. Fig. 2 3) Carefully remove the encoder strip from the encoder sensor by moving it down, then outside the sensor. Be gentle, the encoder strip will not be read correctly if scratched. See Fig. 2. Remove the encoder strip from the pin on the control panel side and set it aside. Pay atten- tion to the orientation of the encoder strip for reassem- bly. 4) The carriage is spring mounted onto the rails. In Fig. 3, the carriage has been pushed towards the rear rails, freeing the front side of the carriage to be lifted out. WARNING: The carriage is still attached to the timing belt. Do not attempt to completely remove it from the machine yet. See step 5. Fig. 3 5) Fig. 4 shows the timing belt attached to the carriage. Remove it by gently pulling it away from the carriage until it is free. Note that the timing belt leaves a mark on the timing belt. See Fig.5. During reassembly, it is important to reattach the belt as close as possible to the original position. Errors will result if the timing belt is out of posi- tion. Fig. 4 Fig. 5
Transcript of Replacing the Printhead on the DTG Viper - Garment Printer … · Replacing the Printhead on the...
Replacing the Printhead on the DTG ViperTools Required: #1 Phillips screwdriver, Tape (ga�er’s or masking,not duct)
1) Release the carriage from the capping station. Bring the carriage close to the center of the machine.
Fig. 12) Use four long pieces of tape to secure the carraige rails on both sides of the printhead, and on both rails. This is to prevent the three pieces of each rail from separating during reassembly. Leave the tails of the tape hanging down, as seen in Fig.1, to facilitate removal.
Fig. 2
3) Carefully remove the encoder strip from the encoder sensor by moving it down, then outside the sensor. Be gentle, the encoder strip will not be read correctly if scratched. See Fig. 2. Remove the encoder strip from the pin on the control panel side and set it aside. Pay atten-tion to the orientation of the encoder strip for reassem-bly.
4) The carriage is spring mounted onto the rails. In Fig. 3, the carriage has been pushed towards the rear rails, freeing the front side of the carriage to be lifted out.
WARNING: The carriage is still attached to the timing belt. Do not attempt to completely remove it from the machine yet. See step 5.
Fig. 3
5) Fig. 4 shows the timing belt attached to the carriage. Remove it by gently pulling it away from the carriage until it is free. Note that the timing belt leaves a mark on the timing belt. See Fig.5. During reassembly, it is important to reattach the belt as close as possible to the original position. Errors will result if the timing belt is out of posi-tion.
Fig. 4 Fig. 5
6) The carriage is still attached to the machine by ink tubes and ribbon cables. Carefully turn the carriage over, exposing the print head towards the front of the machine. Set it on the black rail at the front of the machine. It helps to have a second set of hands to hold the carriage for the next several steps. Fig. 6.
Fig. 6
Fig. 7 Fig. 8
7) The Print Head Housing is secured by three #1 screws. These screws have small heads. it is impor-tant to use a screwdriver that �ts them to avoid stripping the heads. Remove the screws circled in Figs. 7 & 8. Set them aside and DO NOT LOSE THEM.
8) The Print Head Housing is still secured to the print head, but is now free from the damper assembly. Sepa-rate the Print Head Assembly (from right to left, or Emergency Stop side towards the Control Panel). See Fig. 9. Bevery gentle with the Print Head Assembly to avoid damaging the white FFC (Ribbon) Cables.
Fig. 9
Control panel
9) Three #1 screws secure the Print Head to the Print Head Assembly. Remove the screws circled in Fig. 10. Set them aside, and DO NOT LOSE THEM.
Fig. 10
10) Separate the Print Head Assembly from the Print Head. The Print Head is still connected to the machine by the FFC Cables. be sure not to damage them. See Fig. 11.WARNING: The small foam pieces inside the Assembly often fall out. See Fig. 12. Be sure not to lose them, and reinsert them in the Assembly.
Fig. 11
Fig. 12
11) Remove the FFC Cables from the Print Head one at a time by pulling them STRAIGHT out.
WARNING: FFC Cables are delicate. It is VITAL that they be pulled straight out to protect the pins.
12) Begin reassembly by inserting the FFC Cables into the new Print Head. As before, be very careful with the FFC Cables. Some force is required for proper insertion, but make sure that the cable is seated correctly �rst. Orient the head corrrectly, then insert the inner-most FFC cable �rst, then the outer-most. See Fig. 13. The cable being held is the outermost cable, and will be inserted second.
Fig. 13
13) Continue reassembly in the opposite order of this document. WARNING: When closing the Print Head Assembly into the Damper Assembly, MAKE SURE to move the Grounding Fork so that it will not be crushed, and will make contact with the copper plate. See Fig. 14.
14) The screw on the right in Fig. 15 is the small headed Print Head Assembly screw. The screw on the left is the large headed Print Head screw. Do not confuse them during reassembly.
Fig. 14 Fig. 15
Before powering on, be sure that the Encoder Strip is in place, and that the timing belt is in the original position.
Print Head
Print Head Assembly
