Power-On Utilities; Gap/Black Mark Sensor Calibration - zenpert 4D520P Series User Manual

4.3 Power-on Utilities

There are six power-on utilities to set up and test printer hardware. These utilities are activated
by pressing any button then turning on the printer power simultaneously and release the button
at different color of LED.
Please follow the steps below for different power-on utilities.
1. Turn off the printer power switch.
2. Hold on the button then turn on the power switch.
3. Release the button when LED indicates with different color for different functions.
Power on utilities
Functions
1. Gap / black mark sensor calibration
2. Gap / black mark sensor calibration,
Self-test and enter dump mode
3. Printer initialization
4. Set black mark sensor as media
sensor and calibrate the black mark
sensor
5. Set gap sensor as media sensor and
calibrate the gap sensor
6. Skip AUTO.BAS

4.3.1 Gap/Black Mark Sensor Calibration

Gap/black mark sensor sensitivity should be calibrated at the following conditions:
1. A brand new printer
2. Change label stock
3. Printer initialization
Please follow the steps below to calibrate the ribbon and gap/black mark sensor.
1. Turn off the power switch.
2. Hold on the button then turn on the power switch.
3. Release the button when LED becomes red and blinking. (Any red will do during the 5 blinks).
The LED color will be changed as following pattern:
Amber
LED color
Red Amber Green
(5 blinks) (5 blinks) (5 blinks)
Release
Release
Release
14
Green/Amber Red/Amber
(5 blinks) (5 blinks)
Release
Release
Solid green
Release