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Last active April 20, 2024 14:02
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Rico SP C250DN Toner Reset on Raspberry Pi
Below are single-line commands to run in BASH on a Raspberry Pi to rewrite the toner chips to "full" for a Ricoh SP C250DN Printer.
You will need to have the 4 files below in the same directory: "black" "cyan" "magenta" and "yellow".
The chip is near one edge of the cartridge. The pad closest to the edge is GND, followed by VCC, DATA, and Clock.
On the Pi, connect VCC and GND to +3.3V and GND. Connect Data to (physical numbering) 3 and 5. They are the I2C Data and Clock pins.
Be sure i2c is enabled and installed.
modprobe -r i2c_bcm2708 ;modprobe i2c_bcm2708 baudrate=9600
address=0; for i in $(cat yellow); do i2cset -y 1 0x50 $address $i; address=$(($address +1)); done
address=0; for i in $(cat magenta); do i2cset -y 1 0x51 $address $i; address=$(($address +1)); done
address=0; for i in $(cat cyan); do i2cset -y 1 0x52 $address $i; address=$(($address +1)); done
address=0; for i in $(cat black); do i2cset -y 1 0x53 $address $i; address=$(($address +1)); done
The majority of the data and information I needed to do this came from this site:
https://esdblog.org/ricoh-sp-c250dn-laser-printer-toner-hack/
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