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#11
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How to use black ink instead of color, for black print
"NY" wrote:
"Tony" lizandtony at orcon dot net dot nz wrote in message news As a general rule, and ignoring the question of mixing colour with black for enhancement purposes, all printers with fixed print heads will refuse to if any ink tank runs out. This is to protect the head regardless of what the cynical amongst us might think. Depending on whether the fixed printhead is piezo or heat driven the ink is needed to either lubricate or cool the head, in both cases absence of ink damages the head. For printers that use cartridges that have built in heads, so that the head is replaced when the cartridge is replaced, it is a matter of design whether the printer will work with some ink missing and that design may be to allow enhanced black printing or (rarely) to force people to buy more ink they do not yet need! Interesting. I hadn't realised that there was a technical reason for it, as opposed to a sales one. Come to think of it, my HP which would carry on printing had the head in the cartridge whereas the Epson which won't has a head that is not replaced when the cartridges are replaced. Shame that if you select black-only, power to the colour head isn't disabled so as to remove the need to lubricate/cool it. In most cases cleaning cycles take place when powering on the printer (I don't know of any exceptions). That indicates that cleaning is needed after a period of power off. In any event I am convinced that any manufacturer that could design a head that didn't need ink to cool or lubricate would get a lot of customers so the technical reasons are obviously powerful. Tony |
#12
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How to use black ink instead of color, for black print
"Tony" lizandtony at orcon dot net dot nz wrote in message
news "NY" wrote: [snip] In most cases cleaning cycles take place when powering on the printer (I don't know of any exceptions). That indicates that cleaning is needed after a period of power off. In any event I am convinced that any manufacturer that could design a head that didn't need ink to cool or lubricate would get a lot of customers so the technical reasons are obviously powerful. Tony FWIW for info only ... I have a Brother MFC-5460CN (an AOI) that is always plugged-in but mostly turned-off. It will periodically "wake itself up" and run through some cleaning cycles automagically. I also have a Canon iP3000 (had an i560 for a long time till I killed it). I think the Canon's clean when I tell them to. Geo. S. |
#13
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How to use black ink instead of color, for black print
"GSalisbury" wrote:
"Tony" lizandtony at orcon dot net dot nz wrote in message news "NY" wrote: [snip] In most cases cleaning cycles take place when powering on the printer (I don't know of any exceptions). That indicates that cleaning is needed after a period of power off. In any event I am convinced that any manufacturer that could design a head that didn't need ink to cool or lubricate would get a lot of customers so the technical reasons are obviously powerful. Tony FWIW for info only ... I have a Brother MFC-5460CN (an AOI) that is always plugged-in but mostly turned-off. It will periodically "wake itself up" and run through some cleaning cycles automagically. I also have a Canon iP3000 (had an i560 for a long time till I killed it). I think the Canon's clean when I tell them to. Geo. S. Fair enough, there is different beaviour for different printers. My ip4000 which I use rarely cleans every time I turn it on. My experiences with Brother inkjets have not been great but I do like their laser or LED printers. Tony |
#14
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How to use black ink instead of color, for black print
"Tony" lizandtony at orcon dot net dot nz wrote in message
news "GSalisbury" wrote: "Tony" lizandtony at orcon dot net dot nz wrote in message news "NY" wrote: [snip] In most cases cleaning cycles take place when powering on the printer (I don't know of any exceptions). That indicates that cleaning is needed after a period of power off. In any event I am convinced that any manufacturer that could design a head that didn't need ink to cool or lubricate would get a lot of customers so the technical reasons are obviously powerful. Tony FWIW for info only ... I have a Brother MFC-5460CN (an AOI) that is always plugged-in but mostly turned-off. It will periodically "wake itself up" and run through some cleaning cycles automagically. I also have a Canon iP3000 (had an i560 for a long time till I killed it). I think the Canon's clean when I tell them to. Geo. S. Fair enough, there is different beaviour for different printers. My ip4000 which I use rarely cleans every time I turn it on. My experiences with Brother inkjets have not been great but I do like their laser or LED printers. Tony =========== I guess you could be right about the Canon's and cleaning on power-up. When I send something to be printed they turn on (if off) and there is a lot of whirring and clucking and latency and what have you. True of the i560 and now of the iP3000. I never gave it much thought. It is what it is. Geo. |
#15
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How to use black ink instead of color, for black print
On Thu, 28 Jan 2016 17:54:19 -0500, "GSalisbury"
wrote: "Tony" lizandtony at orcon dot net dot nz wrote in message news "NY" wrote: [snip] In most cases cleaning cycles take place when powering on the printer (I don't know of any exceptions). That indicates that cleaning is needed after a period of power off. In any event I am convinced that any manufacturer that could design a head that didn't need ink to cool or lubricate would get a lot of customers so the technical reasons are obviously powerful. Tony FWIW for info only ... I have a Brother MFC-5460CN (an AOI) that is always plugged-in but mostly turned-off. It will periodically "wake itself up" and run through some cleaning cycles automagically. Yes, I have a Brother MFC-J625DW AOI (AIO). Inkjet. I don't turn it off. I don't think it has a switch. But it has no sign of life when I look at it. Not a single glowing light. But the manual said it turns on, every 2 days iirc, to clean itself. With the Epson aio inkjet, I was determined to not clog the jets so I printed something every two months, for two years, and that seemed to be enough. Brother's policy of every two days seems excessive. Maybe that's why I found the printer on the curb (and talked to the previous owner, who lived there and answered the door when I knocked, who really did throw it away (not that it was stolen and then dumped). I didnt' ask why.) I also have a Canon iP3000 (had an i560 for a long time till I killed it). I think the Canon's clean when I tell them to. Geo. S. |
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