User's Manual

11
power, then press the feed key and switch on the power supply while the key is still
under pressing. At the same time, the printer begins to self-checking. Please loosen
the key within five seconds and the printer would print the self-testing list after it.
VI. Cash Drawer Interface
Cash drawer interface adopt RJ-11 standard, 6 lines socket and it outputs DC
24V/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 Number
Signal
Flow
Direction
1
Empty
Empty
2
Electrical grounding
Output
3
Empty
Empty
4
Driver Signal of Cash Drawer
Output
5
Empty
Empty
6
Empty
Empty
VII. Printer Maintenance
7.1 Print Head Maintenance
When the printer has following circumstances, the user 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:
(1) Turn off the power supply and open the top cover. Remove the paper if necessary.
(2) Please wait for the cooling of print head if it just finishes printing.