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| Canon Laser printer i-sense MF633C toner 045H chips protocol |
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| Wiljan:
Hi After being tired of clocked heads in several Inkjet printer after irregular use, I bought a Canon Laser printer MF633C which works very well. I comes with a starter kit of toner Black, Cyan, Magenta, Yellow Now it starts nagging that the Toner needs to be replaced and that is based on a counter on numbers of print in BW, Color and BW +Color. I know or sure it has not been printing much color... mayby some logo on now and then so I pretty confiden that there are a lot of toner left. On each Toner there are a small chip (2pin) and I can read on the net that the printer reads those chips and the after a print save a new counter number back in the chip to keep track of the toner (so the numbers are NOT saved in the Printer but on each toner unit. I can see that it's possible to buy chip on Ebay saying the toner are brand new (always), but I then was wondering how the protocol was working and I have not found any info yet on the web. So I have soldered 2 wires on the Black Toner and hooked a scope onto it 2 see what's going on. Each time I print a page then when the print are done you get a beep from the printer and right after there are some data traffic. It I measure Ohm in power off the 1 pin have 1K to ground on a USB chassis in the printer and the other pin about 15K. I have taken a few photos of the Scope showing the idle level are about 0v and the it rise to about 3 volt and have data to 5 volt 1-wire normal use the whole 0-5 volt So what kind of data is this? Are the protocol know public? I would like to add in a small PIC or so to the the printer that all the tones are full, so I can wait to change the toner until it's actually used. I you continue printing you have to "accept" the Toner are in a low status and quality are nit guarantied. |
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