Hello, For labels that ask sensor type "Mark", it is not possible calibrate the printer, since after calibration the error led is blinking. Looking to the parameters I noticed that the value for Mark sensor is 80, when I chage this value to 50 it is possible perform the calibration, but for the next job the mark sensor returns to 80 automaticaly and presents error for every calibration unless I change it to 50. Do you know how can I fix this? Thank you! Fabio

This sounds like a calibration issue.

Follow the instructions below to re-calibrate

Three readings are required:

· Empty: No media in the sensor.

· Gap (or Mark): Only the backing, notch, or reflective mark in the sensor.

· Paper: The label (with the liner attached) in the sensor.

To perform a Standard Calibration:

Step Operator Action Displayed Message Comment

1 (Media should be loaded and the appropriate Sensor Typeselected.)

2 Press the menu key.

Raise the printhead assembly.

MENU MODE

MEDIA SETTINGS

You are entering Menu Mode.

3 Press the enter key to enter

the Media Settings menu.

MEDIA SETTINGS

MEDIA TYPE

4 Press the FWD key and

scroll to 'Sensor Calibration'.

MEDIA SETTINGS

SENSOR CALIBRATION

5 Press the ENT key. SENSOR CALIBRATION

PERFORM CALIBRATION

You are beginning the standard

calibration procedure.

6 Press the ENT key.

Remove the media from the Media Sensor then press any key.

REMOVE LABEL STOCK

PRESS ANY KEY <yyy>

This sets the parameter for the

'empty' value.

Where 'yyy' is a numerical

value representing the current

sensor reading.

8 Position the label (and backing,

if any) under the Sensor Eye

Mark.

ã Note: If using preprinted

media, ensure the label area

under the sensor is free of

preprinted text, graphics or

borders.

Press any key to continue.

SCAN PAPER

PRESS ANY KEY <yyy>

This sets the parameter for the

'paper' value.

Where 'yyy' is a numerical

value representing the current

sensor reading.

The calibration was successful.

See note below if another

message was displayed.

10 Exit upon successful

calibration: Back out of the

menu tree by repeatedly

pressing the key.

If using gap or reflective media,

press and hold the FEED key.

The printer will begin

advancing media; allow at least

one label gap (or mark) to

advance under the sensor.

READY

First check the sensor is free of any label debris. Then follow instructions below:


Standard Calibration is appropriate for most media types. During the process, the printhead assembly can be raised for visual access to the media and media sensor. In addition, displayed sensor readings can be used to indicate the best position over the media, which is helpful when using small, position-critical TOF notches or marks.

Three readings are required:

.No Media

.Lable Backing

.Backing plus lable

Standard Calibration

Step Operator Action Displayed Message Comment

5 Press the key. SENSOR CALIBRATION

PERFORM CALIBRATION

You are beginning the standard

calibration procedure.

6 Press the key.

Remove the media from the

Media Sensor then press any

key.

REMOVE LABEL STOCK

PRESS ANY KEY <yyy>

This sets the parameter for the

'empty' value.

Where 'yyy' is a numerical

value representing the current

sensor reading.

7 Proceed according to your

media type:

Die-cut stock: strip the media

from the backing and then

reinsert it into the sensor; adjust

the Sensor Eye Mark over the

center of the backing.

Notched stock: adjust the

Sensor Eye Mark over the

center of the notch.

Reflective stock: Adjust the

Sensor Eye Mark over the

center of the facedown black

mark.

Continuous stock: go to Step

8.

Press any key to continue.

SCAN BACKING

PRESS ANY KEY <yyy>

Or, for reflective media:

SCAN MARK

PRESS ANY KEY <yyy>

This sets the parameter for the

'gap' or 'mark' value.

Where 'yyy' is a numerical

value representing the current

sensor reading: useful in

locating the best sensor

position.

ã Note: Never position the

sensor over a perforation when

recording a sensor reading.

ã Note: Do not move the position of the Media Sensor after it has been adjusted.

8 Position the label (and backing,

if any) under the Sensor Eye

Mark.

ã Note: If using preprinted

media, ensure the label area

under the sensor is free of

preprinted text, graphics or

borders.

Press any key to continue.

SCAN PAPER

PRESS ANY KEY <yyy>

This sets the parameter for the

'paper' value.

Where 'yyy' is a numerical

value representing the current

sensor reading.

Maintenance and Adjustments

5-3

Standard Calibration (continued)

Step Operator Action Displayed Message Comment

9 Observe the display. GAP MODE

CALIBRATION COMPLETE

Or, for reflective media:

REFLECTIVE MODE

CALIBRATION COMPLETE

Or, for continuous media:

CONTINUOUS MODE

CALIBRATION COMPLETE

The calibration was successful.

See note below if another

message was displayed.

10 Exit upon successful

calibration: Back out of the

menu tree by repeatedly

pressing the key.

If using gap or reflective media,

press and hold the FEED key.

The printer will begin

advancing media; allow at least

one label gap (or mark) to

advance under the sensor.

READY

The printer is now ready to

begin printing.

1)PLACE THE SENSOR IN TO THE LABEL GAP PROPERLY 2)CHECK THE SENSOR TYPE IN PRINTER(menu->media settings->sensor type) 3)PERFORM A MEDIA AUTO CALIBRATION(press and hold feed on control panel) 4)SET FACTORY DEFAULT SETTINGS

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

have you monitoerd the values which are given by your sensor?
Have you checked that you have selected the right type of detection before calibrating?
Gap or black mark?
Have you checked that the sensor is correctly positionned?

some labels are hard to calibrate, nee to calibrate the sensors with manual calibration.
1} go to the MEDIA AND RIBBON CALIBRATION,
2}take 2 or 3 labels from the base paber, load the way to the based paper stay unther the sensors, 3}close printhead.
4} press ok.
5} Move the ribbon out from sensors and close the printhead.
6) press ok
7) wen printer ask RELOAD ALL, load the labels correcly and the ribbon, close the printhead and the top door, and press ok. The printer run the calibration it self.
wen finish, saved (press setub twice) and test.

You have to calibrate the printer. It thinks there is no ribbon (thermal mode) so it's not winding the ribbon up. The instructions are on page 11 of the manual -
4.2 Ribbon Sensor Calibration
Note: Please make sure the ribbon is properly installed before doing this calibration.
Please follow the steps below to calibrate the ribbon sensor.
1. Turn the printer power off.
2. Press and hold the FEED button then turn on the printer.
3. The LED will turn orange then blink red 5 times. Release after the first red blink and before the 5rd.
4. If the ribbon is properly installed the light will turn green. If it is not it will turn red and blink.

Compare the 2 rolls, Pay close attention to the position ans size of the black mark. The black mark sensor in the zebra 2844 is not (where you would expect it to be) in the centre of the label. It is about 10mm to the right,

Try calibrating the printer to your labels.

Check my other solutions to see how to perform a manual calibration.

possible prpblems

1. your design need ribbon but your ribbon not installed
2. your label label gab type set but your design set continous type label

3.may be your calibration fail. You can calibration with one key.

best regards

Ufuk

The printer must be calibrated or the type of sensor is wrong. Verify that the sensor type is correct for your label (gap or black mark) and you can calibrate it by pressing the FEED key for about 5 seconds approximately.