This sensor can be used with:

  • New Lemur with BR## board and desktop roll holder
  • Lemur-X UPG with roll holder arm or desktop roll holder 
  • Lemur-Z with roll holder arm


Current roll holder

An optional low paper sensor (P/N 424078) may be installed onto the receipt roll holder. This sensor will alert the printer when the paper roll physically goes below the sensor eye. When this happens, the printer will send a low paper status message (0F hex or 15 decimal) to the host computer.


The kit contains the following items.



The sensor is installed onto the roll holder arm in the following manner.

 

  1. Choose the sensor location that will work best with the position the roll holder arm will be installed at.

  2. Insert the screw into the countersink side of the arm or roll holder block.
  3. Install the sensor, so that the sensor tab is facing towards the slot on the arm or roll holder block.
  4. Install the flat washer and 3/16” nut onto the screw. Tighten the nut. Install the second nut and tighten.

  5. Attach the cable tie mount to the roll holder arm, similar to what is shown in the below photo. Connect the white connector to the sensor and route the wire through the hole in the arm. Zip-tie the cable onto the cable tie mount.
  6. Once installed, you may plug the sensor connector into the low paper connector on the printer.
    Image above shows the connector on a Lemur-X
    		Image above shows the connector on a Lemur-Z




Legacy roll holder

Low Paper SQ Opto Indicator Kit for mounting on the roll holder  P/N S424078

 

Each kit comes with the following: 

  • Cable to connect opto to the printer
  • SQ opto. 
  • Mounting hardware 



This sensor will alert the print will the paper roll physically goes below the sensor eye. When this happens the printer will send a low paper status message (0F hex or 15 decimal) to the host computer.

 

The sensor is installed onto the roll holder arm in the following manner.

 

  1. Choose the sensor location that will work best with the position the roll holder arm will be installed at.

  2. Insert the screw into the countersink side of the arm.

  3. Attach the sensor, flat washer and ¼” nut onto the screw. Make sure the tab on the sensor aligns with the slot in the roll holder arm and tighten the nut.

  4. Attach the cable tie mount to the roll holder arm, similar to what is shown in the below photo. Connect the AMP connector to the sensor and route the wire through the whole in the arm. Zip-tie the cable onto the cable tie mount.

  5. Once installed, you may plug the sensor connector into the low paper connector on the printer.

    Image above shows the connector on a Lemur-Z


In the Lemur-X and Lemur-Z a low paper condition is signaled when the printer returns a low paper status message (In Hex 0F, in decimal 15) to the host computer. The low paper condition is detected when the SQ opto no longer detecting the paper. Once the low paper status is returned it will not be returned again until the triggering condition has been reset. This is accomplished by loading stock so the opto eye is covered and cycling printer’s power.

 

The host computer can also solicit the current status of the printer by sending an FGL status request (<S1>) command. The printer will respond with a paper low status if the paper low state has been reached and the printer is online (paper out hasn’t been reached) otherwise is will return an X-ON status