Notes for Permacomputing Club - 07.07.25

Changes to Website

• Potentially changing web host to leaflet.pub
• Ana wants to redesign site to be more grid based
• Nick suggested side notes (looking for link)

Liberating a Printer

• HP Deskjet 3055a - manual(s)
• Daniel brought in a printer and oscilloscope, so we could have a look at capturing and modifying signals sent by the printer
• Ana talked to someone about 'inkcap mushrooms' which we could try to grow
• Nick also suggested iron gall ink, but it burns the paper
• There is an option on the webserver settings to disable cartridge protection
• We're in!
• Printers fingerprint every page you print with yellow dots, that can be used to track every page back to the printer it came from
• Yellow ink comes from 'gamboge' - a sap collected from the killing fields of Cambodia

Nick - Show and Tell - OLPC

• Nick has 4 'One Laptop per Child' laptops!
• One of them still works
• OS runs in a virtual machine
• OLPC website