My printer won't caliberate using a 1.25 inch circular label. The label stock is white, the backing is an opaque whiteish with black lines between each...HELPPPPP

my best advice is to sever the wires going into the unit at a point where they are in good condition, obtain a soldering device and solder, some heat shrink tubing addtiquit for the size of wire and connect your new power cord to the these ends, make cretin that the common or wight and the hot witch is black be connected respectively

Good luck and best regards Falco Mueller

Your Bartender software is probably set to print individual labels with a gap between them. Reset the software (document properties button) to Continuous label supply, and it should work. Still having problems? We're Hanover Technical Sales, a Kroy Support Site and Distributor. Give us a call at 757-357-2677 and we'll help you get to the bottom of it.

GAP NOT DETECTED error in displayProduct: T5000rSymptom

GAP NOT DETECTED error in display.
Possible Cause

Dirty media sensors, wrong label length
Recommend Solution

Clean the upper and lower media sensors by spraying them with dry air. This should bedone every time the media (label stock) is changed.

Before running the Auto-Calibrate operation, check the QUICK SETUP or MEDIA CONTROL menu for the 'Label Length' parameter. It should be set to the length of the label, not counting the gap.

Check that the sensor type has been set in CALIBRATE CTRL menu to match the media and ribbon.
"Gap" Select when using media with a liner space between die-cut labels or when using tag stock with notches or holes as label length indicators.
"Mark" Select when using media that has horizontal black marks located on the underside of the label liner or tag stock.
"Advanced Gap" Select when media is gapped but also has a dark background.
This sensor arrangement looks through the ribbon, and will not work if ribbon is too dark.
"Advanced Notch" Select when media has a notch that is placed in a dark line on the back of the stock.

Check the position of the media sensor. It should pass through the center of gaps or marks or notches, but not through pre-printed areas if possible.

Run Auto-Calibrate in CALIBRATE CTRL menu, which sets Gap and Paper Out Thresholds

Try moving the sliding green media guide out from the wall about 1/4 to 1/2 inch, until the white line is under the label path. This green piece holds the label sensor, which needs to be under the labels so it can sense the gap between labels (or the black mark on the bottom side of the backing, if there is no gap). Also, on the printer menu you must choose whether your stock has a gap (aka web) or black mark (aka reflective).

Change the label size to 301 and 101

Since the LP2844 is a direct thermal printer, the first thing to check is to make sure you have direct thermal labels - regular label stock won't work. Just quickly scrape your thumbnail across the label, the friction will cause a black line if the label is direct thermal.

Sounds like there are some elements worn off of the printhead causing some of the bars to not be printed. To test, create a label that prints a thick black line or solid black box across the width of the label (assuming a 4" label). Any vertical white lines that show indicate elements that are not functioning.
You could also put one label above the other, lining up the barcodes and you'll probably see bars that are missing from the label that won's scan.
The only ways to correct the problem are to install a new printhead or move the barcode field on the label so that the missing elements fall in the spaces between the bars.

Hope that helps !

The LP2844 can only print on Direct Thermal labels.

DT labels have the ink within the label and the labels react to heat. If these labels are to be exposed to direct sunlight they will eventually turn black.

Hint:
If you scrape the label with fingernail you can usually see the black ink on label

The physical size of the labels is this max width 1 inch (MInimum) to 4 inches (Max). Maximum length of label depends on the amount of memory in printer but maximum size for standard LP2844 is 11 inches. With full memory can be 22 inches long.

The labels must be on a 1 inch core.

These printer can handle all label types.

1: die cut Labels - Use gap sensing.*
2: Labels with Black mark on back - Use Black mark*
3: Continuous roll - select continuous *

* Select in printer driver media setting

Use the latest ZDesigner Driver V1.5.10
Download from Zebra Website.

Printer Preferences - Advanced Setup - Media Type.

The ALPS MD5500 is capable of both making white undercoat for CMYK colors and white overcoat (more opaque than white undercoat).
MD5500 is produced mainly for the Japanese market only with a Japanese driver.
But you can get the printer here- with english driver :-)): http://www.alps-supplies.com/alps-md5500-microdry-printer-with-english-drivers-p-28.html

Since the printer is only doing what it is told to do, it is my opionion that the data in the stream that goes to the printer has changed slightly.

Not knowing if you use 3rd party software to produce your labels, or if you manually write your code, take a look at the reference manual for programming if it is the latter and look for the opaque setting for that type and line of text. If you use a 3rd party app, you may need to contact them about the same type of setting.

This opaque type setting should allow the space around your characters to overlap without creating that box effect. Kind of like a gif with a transparent background.

Good luck