Cash Drawer Interface; Printer Maintenance; Print Head Maintenance - aqprox appPOS58MU Guia Del Usuario

VI. Cash Drawer Interface
Cash drawer interface adopt RJ-11 standard, 6 lines socket and the output of it is
DC 12V/1A. Insert the RJ-11 socket to the corresponding interface which could
through the printer to open the cash drawer.
Pin function of cash drawer interface is listed as below:
Pin No.
1
2
5
3
4
6
VII. Printer Maintenance

7.1 Print head maintenance

When the printer has following circumstances should clean the print head:
(1) Printing is not clear;
(2) Some longitudinal columns on the printing page is vague;
(3) Loud noise when feeding.
Procedure of maintaining the print head is listed below:
Signal
GND
DK1
DK-1N
PWR
GND
Instruction
Power ground
Cash box 1# cathode
Open detection
Power supply/cash box anode
Power ground