Printer Send Photo

Print Photo 82

This is by far the most complicated payload to figure out.

What I know so far:

Number of messages for the Photo

It seems that the SP-2 can only receive messages of a specified size. It requires a value that is received from the 79 - Printer Specifications message payload (Bytes 28 & 29) The specified size is calculated the following way:

numberOfMessages = ((height x width) x 3) / maxImageSize

i = ((600 x 800) x 3) / 60000
i = 1440000 / 60000
i = 24

From this, we can also identify that the size of an image once encoded is (height x width) x 3

Command Code: 82

Example Command Payload

Byte	Description	Hex	Notes
Payload
Byte 1	Sequence No. MSB	00	The sequence Number of this payload from 0 to `numberOfMessages - 1`
Byte 2	Sequence No. MSB+1	00
Byte 3	Sequence No. MSB+2	00
Byte 4	Sequence No. LSB	00
Byte 5 to n-4	Image Chunk Payload	..

Example Response Payload

Byte	Description	Hex	Notes
Payload - Header
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..
Payload - Main
Byte 16		00
Byte 17		00
Byte 18		00
Byte 19		02