Infinite Peripherals DPP-350 user manual Power On Self-test

Power On Self-test

The DPP350’s LF switch/button is used for entering various printer modes. These modes can be used to assist developers in debugging problems related to programming and communication. The following explain how to access the various operating modes.

Step #1: Make sure the printer is OFF (On-line LED is OFF) before performing step #2.

Step #2: Press and hold the line feed button (LF). While pressing the (LF) button, press the (ON) button momentarily and release when the LED turns green. Release LF button after the printer Beep once. Shortly after the LF button is released the printer will print the internal test pattern on the right.

LF Button Operation Modes

Short Push	N/A	Paper feed
	1 - beep	Self-test print
Push and
	2 - beeps	Hex Dump mode
Hold -
release after
the number	3 - beeps	Long-test print
of beeps
	4 - beeps	Program mode

Table 5

Note: Care must be taken when entering operating modes to prevent the clearing of factory preset configuration information.

Infinite Peripherals, Inc.

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DPP-350 User Manual v1.09