I was using our Kroy 4350 printer, went to change the tubing and now it turns on, and all three status leds come on and stay on. The printer won't respond to either the pause or feed buttons. Turning off and on the machine yields the same results with all of the lights staying on constantly.
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It appears that your printer has the cut bit set to cut, from a prior print job. Suggest that you do a short print job with the cutter set to NOT cut. That should change the instruction in the machine until it has been changed to cut again. By the way, the factory advises us that the K4350 should typically NOT be using the cutter to cut heat shrink. So you may want to change the setting to NOT cut for the long haul. If this does not solve your problem, you might give us a call. We're Hanover Technical Sales, Inc. We're a premier Kroy Dealer. Call (757) 357-2677 and ask for Don.
I'm guessing that you are printing on narrow heat shrink. This problem is seen less often with wide tube. Here's why. The latest version of the K4350 has the media sensor slightly offset from dead center to accommodate certain types of side by side labels. Consequently, the electric eye that senses the presence of the media does not see the narrow tube and faults out, thinking there is not media in it. To fool the printer, place some opaque material where it will do the most good. Right under the sensor board. Look down in the throat of the printer when the carriage is open. You will see a tiny circuit board that has surface mounted components on it. The bottom side has the sensor that operates in conjunction with an infrared light source below the tube in a recessed area. From behind the carriage, slip a business card under the board, placing it forward until it almost touches the centering guides. Then tape it in place so it won't slip away and jam something up. Re-feed the tube over the card, but under the tiny board. The eye is totally blocked, so you will need to monitor the print process to make sure you don't run out of tube and start printing on the platen roller. That should work just fine for you. If that does not solve the problem, we're Hanover Technical Sales, Inc. Give us a call at 757-357-2677 and we'll help you thru the problem. Ask for Don
Place the label material in the printe, making sure that it is fed below the tiny green circuit board that you will see down in the throat of the printer carriage.
Power off. Firmly hold down the Pause Button. When the label material starts to feed, Release the Pause button.
When the material stops feeding, you should see two green lights.
If you are seeing a red light instead, you have either been feeding labels with a black mark on the reverse of the liner paper, or there may be some other problem, and you need more help. We're Hanover Technical Sales, Inc. We sell Kroy Label and Wire Marker supplies, and help people thru the little idiosyncracies that they encounter from time to time. Phone 757-357-2677 and ask for Don.
Your software is probably set to print labels with gaps. We're guessing that you need to reset Document Properties to Continuous. If that does not solve the problem, we're Hanover Technical Sales, Inc. Give us a call at 757-357-2677 and we'll help you thru the problem. Ask for Don
I guess that by now you have figured this out. If not, email me at firstname.lastname@example.org and I'll email you a copy of the manual (.pdf format). We're Hanover Technical Sales, Inc. We do Tech Support on Kroy machines.
This sounds like a hot pixel failure on the print head. The hot pixels are not repairable. The entire head will have to be replaced, most likely, at a cost of about $300. Hanover Technical Sales, Inc. (that's us) does Technical Support for Kroy printers, so we know what we're talking about.
Could it be something else? Sure, but without a pic of the issue, we'd not be able to guess what else it might be.
Make sure that heat shrink tube is clean and free of static electricity. When possible, use Kroy brand tube in the K4350. And we have a new hybrid ribbon that minimizes static at the head ... and consequently minimizes hot pixel issues.