Blinking amber light will feed labels but doesn't print on them

I think this is more related to the calibration of the label each time you change the new label size. I use ZM400 and your printer should also have the same setting. Under setting, put the When Head Close setting to Calibration. This will let the calibration perform automatically when ever you load a new label size and close the print head. Well 2 label will be lost every time.

Over time, printing labels builds up a light residue of the adhesive (due to heat pressing) used on the labels in the paper path. A thorough cleaning of all paper path parts with alcohol prep pads, or Glass Plus and quality paper towels, will reduce this gum build up.

You should regularly print standard paper jobs on a laser printer that will be printing labels. Rule of thumb is 4:1 - four sheets of regular paper print for each sheet of labels printed. This helps keep the adhesive cleaned out of the paper path.

Patience and a lot of scrubbing should do the trick, though you may have to install a printer maintenance kit early given the issues noted. Printing labels cuts maintenance kit duration in half, at a minimum.

Please post more details.

To change from "page mode" (protrait) to "line mode" (landscape) you need to complete the following steps.
1. turn the power off
2. hold the feed button down
3. turn power on, the feed button should blink, release the button.
4. when the feed button blinks green, press and hold until it turns red or amber. release the button.
5. turn the power off.
6. hold down the feed button and turn power on, the button should blink and release. it will now print a calibration page. 4 blanks followerd by 2 text pages, the last saying "Now in DUMP" press feed to exit. on the first print, the 4th line down will say either page mode or line mode.

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.

You should try a factory reset. Power off the printer. Hold the "pause" and "feed" buttons down while powering up. Allthe lights will blink and when they stop blinking, release the "pause" and "feed" buttons. This will factory reset the printer.

Also, what I did was to first back all of the labels out and back into the reel. Turn machine off, then back on. With the peel lever down, as mentioned above, begin to load the labels as shown. The light will blink and it will make a noise as it senses the label. It will begin to draw the label in and you need to make sure you create tension on the labels as they are being pulled in. I accidentally did this by holding pressure against the reel, and sure enough, the thing pulled the first label into place and quit frickin blinking!!! Labels printed fine afterwards!

1: Is it a TLP2844 or a TLP2844Z.

Operationally they are completely different printers. TLP2844 uses ELP (Eltron Programming Language. but TLP2844Z uses ZPL (Zebra Programming Language). You need to calibrate the printer to the labels.

Calibration:
If its a TLP2844. Load media. Connect power.
Hold down feed key, power on, count one, two, release feed key. The printer will go through a calibtation routine and print config label. IMPORTANT - When it prints this label you must press the feed key and see the message OUT OF DUMP. Your printer will now be calibrated. Check this by hitting the feed key a few times and printer will feed one label each time feed is hit.

Calibration:
If its a TLP2844z.

Load media. Turn printer on and wait for green light (Approx 1 minute)
Press feed key and keep it pressed until green light blinks once, then twice, now release feed key.

your in line mode instead of page mode.

1. Turn printer power off.
2. Press and hold the feed key, then turn power back on.
3. When light starts to flash, release finger from feed key.
4. When light starts to flash again, press and hold the feed key until the light turns red (or amber), then release finger from feed key.
5. Wait for light to turn solid and press feed key once.
6. Check to make sure you are in the correct printer mode by printing a configuration label (Click here for configuration label example - Note item C).

The printer is in line mode. Do the following to take it out of line mode:
Turn printer power off.
Hold the feed button while turning printer power on.
When the light starts flashing, release the feed button.
When the light starts flashing again, press and hold the feed button.
When the light turns steady amber, release the feed button.
When the light turns steady green, the mode is changed.
Verify the mode by printing and inspecting a status report.

This requires good timing and may take several tries. You'll know it worked if no labels are reeled out after you're done.