Paper-end detector

The printer is equipped with a paper-end detector that warns you when the printer runs out of paper. When the printer detects that the paper has run out, printing stops, the PAPER OUT indicator goes on and the buzzer sounds.

The PAPER OUT light goes out when paper is loaded. Howev- er, printing does not restart until the ON LINE switch is pressed.

The SQ-2000 has an override which allows the paper to move approximately one inch after the end of paper has been sensed. For this reason, always remove paper using the LF or FF buttons.

If you manually remove the paper from the printer, you won’t be sure the paper end has been detected. It is possible to later place the printer in the on-line state and have data lost (and printed onto the platen) if you don’t follow the correct procedure.

Ink low

When the ink cartridge is nearly empty, the INK LOW indicator lights and the buzzer sounds. Only 66 additional lines (ap- proximately one page) can be printed in this state. If the ink is low when the printer is switched on, the INK LOW indicator lights up and the printer remains off-line until the ink cartridge is replaced. To restart the printer, replace the cartridge, perform the head cleaning operation (explained in Chapter 4), and then set the printer on-line.

Buzzer

The buzzer is located on the control circuit board. It sounds for about 0.25 second in the following cases:

•When the BEL code (ASCII code <BEL>) is sent to the printer.

•When the end of the paper is detected.

•When the printer carriage malfunctions.

•When the printer is out of ink.

Note:

The buzzer can be switched off when DIP switch SW2-6 is set to ON (up). If a malfunction occurs the buzzer will sound even if the switch is set to ON.

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