• • • • • • • • • • • • • • • • DX • • • • • • • • • • • • • • • • • • • • • • Game Boy Printer paper [ ] A roll of the American Game Boy Printer paper came in red, blue, yellow and white, with an adhesive backing. It had a width of 38mm and a diameter of 30mm, with a 12mm cardboard spindle in the centre. A typical roll had 390–400 cm of length. When a picture printed from the Game Boy Camera, it would print with a.5 cm margin above and below the picture and print the picture at a 2.3 cm height.

Remove the protective cover over the paper roll and cut off several centimetres' length of paper. Installazione Stampante Canon Pixma Ip 2000 User Guide. Game Boy Printer; Paper jam; Nintendo Switch.

This would give the total of 3.3 cm height per picture. The Game Boy Printer paper refills boasted up to 180 pictures per roll.

With the math the typical roll could only take 118 pictures. The paper is now hard to find; it could be substituted with a 1.5-inch-wide (38 mm) thermal paper without repercussions on the printer. Game Boy Printer Protocol [ ] The communication between the Game Boy and the Game Boy Printer is via a simple serial link. Serial clock (provided by the Game Boy for the printer), serial data output (from Game Boy to printer) as well as serial data input (to Game Boy from printer).

The Game Boy sends a packet to the printer, to which the printer responds with an acknowledgement as well as a status code. Packet Format [ ] Communication is via the Game Boy sending to the printer a simple packet structure as shown below.

In general, between the first 'sync_word' til the checksum is the Game Boy communicating to the printer. The last two bytes of the packet are for the printer to acknowledge and show its current status code. Byte Position 0 1 2 3 4 5 6+X 6+X+1 6+X+2 6+X+3 6+X+4 Size 2 bytes 2 bytes 1 byte 1 byte 1 byte 1 byte Variable 2 bytes 2 bytes 1 byte 1 byte Description SYNC_WORD SYNC_WORD COMMAND COMPRESSION DATA_LENGTH(X) DATA_LENGTH(X) Payload CHECKSUM CHECKSUM ACK STATUS GB TO PRINTER 0x88 0x33 See Below See Below Low Byte High Byte See Below See Below See Below 0x00 0x00 TO PRINTER 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x81 See Below • Command may be either Initialize (0x01), Data (0x04), Print (0x02), or Inquiry (0x0F). Hp Color Laserjet Firmware Update. • Payload byte count size depends on the value of the `DATA_LENGTH` field. • Compression field is a compression indicator. No compression = 0x00 • Checksum is a simple sum of bytes in command, data length, and the data payload. • Status byte is a bit-field byte indicating various status of the printer itself.

If it is still printing) Commands [ ] Initialize (0x01) [ ] • Typical Payload Size = 0 This packet is sent without a data payload. Windows 7 Starter Snpc Oa Hp Iso here. Canon Ir2870 Printer Driver. It signals to the printer to clear the settings and prepare for the first data payload. Data (0x04) [ ] • Typical Payload Size = 640 The data packet is for transferring the image data to the printer data buffer.

The typical size of the data payload is 640 bytes since it can store two printable rows of 20 standard Game Boy tile (2 bit color in 8x8 pixels grid), of which the Game Boy tile takes 16 bytes. Print (0x02) [ ] • Typical Payload Size = 4 This commands the printer to start printing. It also has 4 settings bytes for printing. Payload Byte Type Typical Value note 0 Unknown 0x1 1 Printing Margins? High Nibble for top margin. Low Nibble for bottom margin 2 Palette 0xE4 3 Print head strength?

7 bit value Inquiry (0x0F) [ ] • Typical Payload Size = 0 Used for checking the printer status byte. This may be for checking if there is enough data in the printer buffer to start printing smoothly or if the printer is currently printing. Printer Status Reply Byte [ ] Bit X Status Byte Bit Position Meaning Bit 7 Battery Too Low Bit 6 Other Error Bit 5 Paper Jam Bit 4 Packet Error Bit 3 Unprocessed Data Bit 2 Image Data Full Bit 1 Printer Busy Bit 0 Checksum Error References [ ].