CNPOS CN-POS890 Manuel de l'utilisateur - Page 16

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CNPOS

USER MANUAL

2.9 Enter the program upgrade mode

When printer is power off,open paper case cover. Hold the【FEED】button, then

switch on the printer and release the 【FEED】 when the status indicator and paper-out

indicator flash alternately. Then press the 【FEED】 for five times and close the paper

cover, printer enter the program upgrade mode. At this time, the status indicator flash

once a second.

Quick enter method:

Open the paper case cover firstly when printer is power off. Hold the 【FEED】button

and switch on the printer, then release the 【FEED】button quickly, then printer enter

the program upgrade mode. At this time, the status indicator flash once a second.

Notice:

When printer enter the program upgrade mode, the paper-out indicator flash means

the interface can't be upgraded, only serial interface and USB interface are

supported online program upgrading at the moment.