![]() ![]() I used the stopwatch on my mobile phone to time how long it would take, but managed to stuff that up. I had sent several print jobs to the printer during the day without triggering a clean.Ī few minutes after the 120 hour period had expired I sent a form feed (blank page from a word processor) to the printer which triggered the clean.īased on the Pro9000 Service Manual I expected the clean to last about 85s. As expected my Pro-100S did its 120 hour clean last night. My point here is that the purge sheet did not stop the auto clean some hours later. Also, I can see there was a purge sheet from QI at 09:34 on 31st May which did not initiate a clean. Hence I expect the next clean to happen when I send the first print job after 22:55 on 5th June. Ink is too expensive and I almost never turn off at the mains anyway.īy the way, using Qimage job log I can see the last print I sent to my Pro-100 which triggered a clean was at 22:55 on 31st May. I may test the case when powering off using front panel, but have no intention of testing after powering of at the mains. In otherwords turn printer off on front panel before power down at the mains. "If the print head has not been capped before power-on". On the subject of powering off and on, I see nothing in the Pro9000 Service Manual about cleaning cycles if the switch on the front panel is used. Ink tanks related to just one channel are removed for more than 60s.Ĭonditions that would synch them again would be a manual clean of both channels, Print head removal and replacement or power off and on at the mains. In fact the only 2 things I can think of that would cause the 2 channels to get out of sych are Having thought about this I realise the Qimage purge cannot synch the 2 channels. "since I have been using the Qimage purge sheets recently I expect both channels to flush at the same time" I need to correct something I said in my original post. The obvious implication is that a clean cycle can be avoided if a tank is changed in under 60s. One would expect printing would rest this timer. There is no mention of when the timer is reset. If the same ink tank is removed and installed back multiple number of times, cleaning is performed based on theĪccumulated period of time the ink tank is removed.)" (Cleaning is performed according to the period of time an ink tank is removed from the print head, regardless of whether the ink tank isĪctually replaced or not. "If an ink tank is removed for 60 seconds or longer, cleaning is performed. I will be making some suggested changes to the Purge sheet option in Qimage based on this information.Īnother useful piece of information in the above mentioned manual is the following statement: The count number is not specified as far as I can see. The above mentioned manual also mentions "dot count cleaning", which means the printer will also do a clean when a certain number of dots are printed since the last clean. I have never timed the cycle period, but since I have been using the Qimage purge sheets recently I expect both channels to flush at the same time. I would never have let it reach the 480 hours. On the Pro-100S I have observed the 120 hour cycle several times. ![]() The cycles being 115s for both or 100s for one channel. If greater than 480 hours has elapsed since the last clean then about twice as much ink is flushed prior to the first print. The quantity mentioned appears to be in grams so I will just reference the time mentioned for the cycle, which is either 85s if both channels are flushed, or 75s if only one channel is flushed.Ĭ. If between 120 hours and 480 hours has elapsed since the last clean, a small amount of ink is flushed through the head prior to the print emerging. If you send a print job to the printer and less than 120 hours has elapsed since the last cleaning cycle, no cleaning takes place before the print.ī. The Pro9000 Service Manual talks about 2 timers, ie. At least one other user has observed it to be the case for the Pro-100S. The Pro9000 Service Manual states that to be the case, so it is more than likely the case for the Pro-100 and 100S.ģ. ![]() I have observed it several times on my Pro-100S.Ģ. For the following 3 reasons I believe the cleaning cycles will happen regardless of whether a print has occurred:ġ. One of the common misunderstandings is that by using the printer, even just to print a nozzle check you can avoid an automatic cleaning cycle. ![]() I have started this thread because I believe there is a general misunderstanding about the automatically generated cleaning cycles of the Canon Pixma Pro-100S and probably other Canon Pro models. ![]()
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