127
ii.
9040 for that family of Imaje ink jets.
e.
Loop back detected – this is good if you intentionally put a jumper accros TX and RX
lines for testing. ( Check out the section below for intentional use of the Loop back test
feature.) Otherwise it’s bad and indicates that there is a short between these two lines
somewhere.
f.
Data – indicates that something was received from the Imaje but it was not one of the
three acceptable Codes, ACK, NAK or ENQ. Check the instructions for setting up an
Imaje for use on an ARTOS machine and make sure everything is set correctly on the
Imaje printer. Use the Loop Back test method to isolate where the problem is.
7.
If you went though steps 1 – 6 and everything is OK, then most of the interface is checked out
OK. You should not get any Pre process not ready warnings. However, you may still not get
any marking on the wire. What is Left to check, other than having a valid ink jet preprocess set
up in the part there are two main items that can prevent marking:
a.
DTOP circuit, the Imaje DIO dialog can help you here:
i.
Click on theDTOP button to set DTOP state to 1.
ii.
If using the 5-142096 board check the DTOP LED on the interface board:
1.
If it’s OFF check wiring to the board from the control.
2.
If it’s ON check for the signal at the Imaje industrial interface board to
determine if it’s the cable or the Imaje board and it’s wiring to the cable.
b.
TACKY circuit:
i.
Start by clicking on the Init PO button, this will enable the ARTOS ink jet
interface board to send a short burst of TACKY pulses to the Imaje industrial
interface. You can use this to trace the signal. If a 5-142096 board is in use you
should see the OSC EN LED come on briefly to indicate this. Also the TACKY
LED should come on at the same time:
1.
If neither LED comes on check wiring to the Board from the controller.
2.
If both LEDs come on check cable and connectors to the Imaje.
3.
If one LED come on but not the other or if wiring on both sides of the
board check out, then replace the board.
ii.
If the PO signal traces OK then you actually need to cycle the machine and check
to see if the Imaje industrial interface receives TACKY pulses. If a 5-142096
board is in use watch the TACKY LED on the ARTOS board and on the Imaje
board. To see if it’s flashing as the wire feeds. If it does you are OK if not and
the PO cycle does then there may be a problem with the ARTOS ink jet interface
board or the wiring of the board to the Wire feed wheel encoder. You should
also see the ENC EN LED come on when the wire is feeding. If it does not check
wiring to the controller if it’s OK the interface board may be bad.
Intentional use of TX / RX Loop back
As indicated above in Step 6 the Send ENQ test has a loop back detection message. This means that the
control received back the same ENQ code it sent to the Imaje. Something that does not happen without a
short of TX to RX lines somewhere. We can use this to our advantage in trouble shooting.
If you are having problems with Step 6 above and always get the Timed out with no response message
and the serial interface of the ink jet is properly setup you can try to isolate the problem as follows:
1.
Remove the RX and TX lines at the Imaje Industrial Interface board. This is on the B1 terminal
strip but the actual terminals are different between the S4/S8 and the 9040 versions, check the
appropriate wiring diagram.
2.
Connect the two wires you just removed together.
