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I have a problem with Zebra GK420t printer, the printer does not recognize gaps so when it prints one label next time it starts from the gap and hence some portion of barcode is not printed on the label.

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Posted on Jan 02, 2017

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SOURCE: Gaps in barcode with Zebra S4M

By gaps, do you mean a "void" area ? Over time, the elements on the printhead will wear down and finally they won't transfer heat to the ribbon. This causes a gap or void area. Usually the elements go out one or two at a time. If the area that is worn out is supposed to be printing bars for the barcode, this will cause the scanning problem you are experiencing.

The best way to see if elements are worn out is to design a label that has a thick solid black line across the label or a solid black box. You will see white vertical lines in the areas where elements are worn out. Another method would be to use the widest and longest label you have and print a 'pause" test label. This is done by turning off the printer, pressing and holding on the PAUSE key while turning on the printer. Hold the pause key for 10-15 seconds and when the printer is done with it's power on self test, it will start printing out a test pattern label which includes a nice black area where you can look for the white vertical lines.

Hope that helps !

Posted on Apr 06, 2010

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SOURCE: Gaps in barcode with Zebra S4M

The gaps run in the direction of the label feed? You have a bad printhead. Bad dots on the printhead prevent it from printing your format in the areas that you see the blank lines.
There is no easy fix other than replacing the printhead. You can prevent (or actually prolong the time between failures) in the future by periodically cleaning your printhead. It's recommended that you clean the printhead after every roll of labels. The printhead is underneath the hinged assembly. Over time, ribbon or adhesive from the labels builds up and causes dots to go bad - creating the blank lines you see. Clean your new printhead with rubbing alcohol.

Posted on May 17, 2010

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MY PRINTER ZEBRA GK888T SKIPS LABELS WHEN PRINTING. IT CANT RECOGNIZE GAPS BETWEEN LABELS. CALIBRATED MANY TIMES ALREADY


go to printer properties , check in the options and make sure it there should be printing in continuous not with gaps,

there will be one option print and one tab will be there with options to either print in continuous or with gaps, so select continuous from the tab and save the changes it will work

Best regards
Waqar Ahmed shahUAE

Feb 07, 2014 | Zebra tlp2844ps Thermal Label Printer

1 Answer

Gaps in barcode with Zebra S4M


The gaps run in the direction of the label feed? You have a bad printhead. Bad dots on the printhead prevent it from printing your format in the areas that you see the blank lines.
There is no easy fix other than replacing the printhead. You can prevent (or actually prolong the time between failures) in the future by periodically cleaning your printhead. It's recommended that you clean the printhead after every roll of labels. The printhead is underneath the hinged assembly. Over time, ribbon or adhesive from the labels builds up and causes dots to go bad - creating the blank lines you see. Clean your new printhead with rubbing alcohol.

May 15, 2010 | Zebra S4M Thermal Label Printer

1 Answer

Gaps in barcode with Zebra S4M


By gaps, do you mean a "void" area ? Over time, the elements on the printhead will wear down and finally they won't transfer heat to the ribbon. This causes a gap or void area. Usually the elements go out one or two at a time. If the area that is worn out is supposed to be printing bars for the barcode, this will cause the scanning problem you are experiencing.

The best way to see if elements are worn out is to design a label that has a thick solid black line across the label or a solid black box. You will see white vertical lines in the areas where elements are worn out. Another method would be to use the widest and longest label you have and print a 'pause" test label. This is done by turning off the printer, pressing and holding on the PAUSE key while turning on the printer. Hold the pause key for 10-15 seconds and when the printer is done with it's power on self test, it will start printing out a test pattern label which includes a nice black area where you can look for the white vertical lines.

Hope that helps !

Mar 30, 2010 | Zebra S4M Thermal Label Printer

1 Answer

I have a GK420t Zebra Thermal transfer printer that prints the test print perfect but when connect to mainframe and start printing from mainframe system the print is upside down. The top of print is on the...


You need to add the ^POI or ^PON command to your format on your host system. Look it up in the manual to see which is right for your app.

You could also get labels that are wound the other way on the roll. Inner wound vs. outer wound.

Jan 05, 2010 | Zebra GK420t thermal transfer and thermal...

1 Answer

Losing half of top line when printing


Label definition in printer driver may need adjustment. Try calibrating printer, printer on solid green light, hold down feed key & release after light blinks 4 times, (blinks once, twice, three times then 4 times) Download the Zebra setup utility and use it to configure printer.

Sep 29, 2009 | Zebra TLP 2844-Z Thermal Label Printer

1 Answer

I have a Zebra Stripe 600. I am trying to print a


Ok, when you say continuous...do you mean it is a roll of label material that does not have gaps in between? If it has gaps...it is NOT a continuous label and you probably have the driver settings set as continuous feed and not gap as it should be....

Call BarcodeWarehouse.biz - they will help you with any problems you have!

Aug 03, 2009 | Zebra Stripe Thermal Label Printer

1 Answer

Zebra 105SL label issues


I am surprised that you are using that sequence of buttons to solve this problem. I am pretty sure that they want you to go into the "Media Sensor Calibration" setup in the config menu. It is a bit more complicated than what you have described. I also believe that the size of the gap on two of your labels might be out of tolerance (they are usually 1/8" gaps between the labels). The black marks are a problem for the transmissive sensors. You may need to move the transmissive media gap sensor (remember it has two parts: upper and lower). I would usually setup mine for a place beyond the black mark so that you are looking at just the white paper.

To start out:
1. Load the backing of a 6" strip of media (no label attached).
2. Remove a ribbon (if you usually use one).
3. Close the printhead.
4. Press SETUP/EXIT and then NEXT/SAVE until "Media and Ribbon Calibrate" appears.
5. Press "+" to start the calibration procedure. You should see the "Load Backing" in the LCD Display. You already have the backing loaded so continue to the next step.
6. Press "+" to answer the message and the next screen should say, "Remove Ribbon". You have also removed the ribbon.
7. Press the "+" to continue. You should see the screen say, "Calibrating Please Wait". After the sensors are setup by the machine a new screen should appear, "Reload All".
8. Open the printhead, and move the labels until they are loaded correctly to print. Smooth out the ribbon and load it correctly.
9. Withe media and ribbon now loaded, press "+" to continue and the machine should say, "Media and Ribbon Calibrate".
10. Press the Setup/Exit button once. It should say, "Save Changes Permanent". Press Next/Save to finish the process.
11. Do a normal calibration of your stock and print a label.

You are done. The machine will run for the labels you have setup the sensors for. Unfortunately, you must do this for each of the media types. To automate this, you could run a Configuration listing, capture the settings you just created for each type of label. Take these to a programmer to have them send the setup to the machine before the job. This is beyond the scope of this type support to really help you.

May 13, 2008 | Zebra 105SL Thermal Label Printer

1 Answer

Zebra 2844 Not printing at all


Antztech,
if the red light is coming on and staying on, it might be a sensor problem. Try pushing on the lid and see if the light goes to green. If it does, it' s the gap sensor. This is how the printer "reads" the labels gaps-the little spaces between the labels. We've solve this in the short term by covering the sensor and manually setting the gap through the programming command prompt,

Mar 28, 2008 | Zebra LP 2844 Thermal Printer

1 Answer

Printing die cut labels on Zebra Z4Mplus?


Set the printer to transmissivefrom reflective gap sensing.

This will cause the printer to loog for the inter-label gap to tell it where the top of the label is at.

Steve Weinrich
LazerTek, LLC

Dec 15, 2007 | Zebra Z4Mplus Label Printer

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