Power switch, buttons, indicator lights, and self-test of a 76mm dot matrix receipt printer

one,76mm dot matrix receipt printerSwitches, buttons and indicator lights

1. Power switch

The power switch is used to turn the printer on and off. The printer's power switch is located on the left side of the printer. Pressing the "-" button turns the printer on; pressing the "O" button turns the printer off.

Note: Only turn on the switch after connecting to a power source.

2. Buttons and indicator lights

The buttons and indicator panel are shown in the following figure:

Button and indicator light function description:

(1) FEED button: Paper feed button

In standby mode, press the paper feed button to feed paper continuously. The paper feed button is inactive during printing. When loading the paper roll, after the paper is properly loaded, press the paper feed button to confirm paper feeding and put the printer into ready mode. Pressing and holding this button before powering on the printer will perform a self-test after power-on.

(2) ERROR light (red): Error indicator light

Printer error indicators, such as paper shortage, paper jam, printhead overheating, printhead error, or other abnormalities. A flashing indicator means waiting for confirmation that paper feeding is complete.

(3) PAPER light (red): Paper detection indicator

The paper detection indicator light stays on when the printer is out of paper. It turns off when the paper out sensor detects paper.

(4) POWER light (green): Power indicator light. It stays on after the power is connected.

3. Dot matrix printer DIP switch settings

There's a small plastic cover on the bottom of the printer; removing it reveals a circuit board with DIP switches. Adjusting these DIP switches can change the printer's settings.

Notice:

Make sure the printer is off and the power outlet is unplugged before setting the DIP switch.

The functions of each DIP switch on the printer are set as follows:

II. Self-testing of 76mm dot matrix receipt printer

The self-test function checks if the printer is working properly. If it correctly prints the self-test checklist, it means that everything is normal except for the connection interface with the host computer; otherwise, it needs to be repaired. The self-test will print the software version number, interface type, DIP switch settings instructions, and some English and Chinese characters in sequence.

The self-test operation method is as follows: After the printer is connected, press and hold the paper feed button and then turn on the printer power. The printer will first perform a reset test. After the reset is completed, release the paper feed button in less than 5 seconds. At this time, the printer will perform a self-test and print out a self-test checklist.

After the self-test is complete, the printer will print the following:

Selftest

*****

Completed

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