[kwlug-disc] Printer Question.

unsolicited unsolicited at swiz.ca
Fri Jun 22 20:37:28 EDT 2012

I expect the routines say "I'm going to need some green in this area." 
So a 'reasonable' amount of green (blue & yellow, actually, OOPS wrong 
medium, cyan & yellow?) is put in the area for the charge on the drum to 
pick up. Since they will be of the opinion better too much, but not too 
much, than not enough, there will always be some waste.

My Ricoh stops cold when the waste toner fills. Note, my waste toner is 
collected in a separate bottle, not in the drum itself (if any do that). 
It's only deep in the technical manuals you find out where it shoots a 
laser through the bottle, and if the light isn't received it assumes the 
bottle is full. So, I have two - one fills, I put in the empty, go out 
to the back yard (at some point weeks later - months if it happens in 
December), empty the other, carefully swab the detection area, probably 
after compressed air'ing it, then get on with my day.

But, nowhere do the public docs say this is possible. Even the techs 
won't order new bottles, they just empty them too.

My Brother inkjet MF - have one ink cartridge go dry and the entire 
thing becomes a paperweight. No scanning, no i/o card reading, no 
modem/fax [who uses modem or fax these days? (vs an internet service?)]. 
Don't use it for a while, ink dries up, same thing.

The Ricoh also has a service mode where low level access to all counters 
are possible. You can seriously brick your printer doing the wrong 
thing. Perhaps Joe's device has a similar facility (via USB, enet, 
telnet, smoke signals?) - if you can but find the information.

On 6/22/2012 3:17 PM, Bob Jonkman wrote:
> Hash: SHA1
> Right, so the toner that sticks to the paper is the toner that is
> usefully used up.  Are you saying that the entire surface of the paper
> has toner flung at it, all of which is waste except where the image is?
> - --Bob.
> On 06/22/2012 03:08 PM, R. Brent Clements wrote:
>> There is always waste toner.  the printer works by creating a
>> patern in static electricity and then spraying it with toner that
>> sticks where the charge is.  That toner is then melted.  One of the
>> stupidest parts of samsung printer designs is that you can't just
>> empty it.  You "have to" replace it.
>> Brent
>> On Fri, Jun 22, 2012 at 3:04 PM, Bob Jonkman <bjonkman at sobac.com>
>> wrote: I've got a Samsung 1720 (B&W, no display).  From reading the
>> manual, it seems like the printer is full of DRM.  There's encoding
>> on the toner cartridge to detect a "nonSAMSUNG toner cartridge -
>> The toner cartridge which the arrow indicates is not a
>> Samsung-genuine cartridge"  or even worse, "Toner Exhausted - A
>> toner cartridge has reached its estimated cartridge life. The
>> printer stops printing" whether there's any toner left or not. This
>> may have something to do with the "waste toner" collector being
>> full, but why is toner being wasted in the first place?
>> So, likely it IS just a counter, but intentionally set up to make
>> you buy new supplies. I see there are lots of places selling
>> circumvention chips[1] and software[2].
>> <politics> Now that Bill C-11 is about to become law, it will be
>> an offence to circumvent these Technological Protection Measures
>> to repair your printer... </politics>
>> FWIW, Samsung is pretty good about providing printer drivers for
>> GNU/Linux systems,  Difficult to install, though. Not something
>> I'd expect a non-technical person to do. And I don't remember if
>> the driver source is provided...
>> --Bob.
>> [1]
>> http://www.ebay.com/itm/Samsung-CLX3175-CLX3170-FN-CLX-3175FN-CLX3175FW-toner-cartridge-fix-reset-chip-/320816974041
>>   [2]
>> http://www.fixya.com/support/t7888133-counter_reset_samsung_scx
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