Printer Lock Unlock Command

Command 179 - Change Lock State

This command is sent before and after a photo is printed. Before the photo is printed, 1 is sent to lock the device, and after 0 is sent to unlock the device. This is presumably used to prevent other users or clients attempting to send photos whilst a print is in progress.

Command Code: 179

Example Command Payload

Byte	Description	Hex	Notes
Payload
Byte 1	Lock Byte	01	Either 1 for Lock, or 0 for unlock
Byte 2		00
Byte 3		00
Byte 4		00

Example Response Payload

No response payload is sent, as all the client needs to do is check that the return code is 0.

Byte	Description	Hex	Notes
Payload
Byte 12	Return Code	00	See [Return Codes](https://github.com/jpwsutton/instax_api/wiki/Return-Codes)
Byte 13		00	Unknown..
Byte 14	Ejecting	00	(b14 >> 2 )& 1
Byte 15		3a	Unknown..