[WD20] Receipt Printer - Opening the Cash Drawer (3 replies)

I'm attempting to support 2 more brands of receipt printer in my application. I have a Star TSP100 working well. I'm trying to add a POS-X Evo Green and a Citizen CT-S310II.

I have the Citizen set up correctly except for opening the cash drawer. For the Star I use:

iEscape(Charact(7)) // Open drawer attached to Star printer
iEndPrinting()

This does not work for the Citizen. From this site I found the following codes.

// The following 2 lines have been edited since I originally posted
IF Citizen THEN iEscape(Charact(27) + Charact(112) + Charact(0) + Charact(50) + Charact(250)) // Open drawer attached to Citizen printer
IF Pos-X THEN iEscape(Charact(27) + Charact(112) + Charact(0) + Charact(25)) // Open drawer attached to Pos-X printer
iEndPrinting()

1. The new escape sequence opens the drawer, but it makes the printer error led light up, and the printer is unavailable in Windows until I turn it off and back on. I've tried multiple combinations of that escape sequence and can't get it right.

2. For the POS-X Evo I can get the drawer to open with a number of sequences from the combining the numbers above, but every sequence that successfully opens the cash drawer also feeds some paper.

I believe I have both drivers correctly installed. Does anyone have experience with either of these printers? Is there a certain printer property/preference that I may be missing?