Hi, I am new to this forum.

I have been trying to find out when the canon pixma pro 10s initiates a purge cycle. I have searched the internet and found varying
answers to this question. I have read the following variations:

a) the printer initiates a purge cycle every 60 hours regardless of other activities (starting from the first time it printed anything);
b) the printer initiates a purge cycle before every print (as well as or instead of the 60 hour cycle ?);
c) the 60 hour cycle is re-initiated after each print;
d) prints should be made at least every two days to beat the 60 hour cycle.

If the 60 hour cycle takes place regardless, then there is no point as far as I can see in printing every 2 days, the printer will purge after the 60 hours. Presumably this period is set from the day the printer is first used.

I rang the canon technical advice line and they said they knew nothing of a 60 hour cycle, and the printer only purges when it is switched on. They also said that the printer should be switched off after every session ??

Does anybody know what actually happens, and why is this a sort of hidden secret ? It is not explained in the user manual.

I would like to know before I try a compatible ink refillable system.

I hope this is understandable, it may have been discussed here before

many thanks, Robert

Robert,
           I think you are correct in that no one knows.  What you quote in you original post are known facts about the Imageprograf Pro 1000 which is a massive ink consumer and waster.   A fine printer in itself apart from its increasingly dubious reliability with many having to be scrapped due to mechanical breakdowns and extortionate repair costs.

A Pro 10s is at least two models down and considered (by Canon) a consumer printer and as such may not have the over zealous automatic and undefeatable cleaning cycles of the Pro 1000 since I am sure even Canon know that consumers are not printing every day or often every week?

I did own the Pro 1000 but I would advise anyone contemplating buying one to buy elsewhere.  It is still on a table next to my desk here and I have just sold over a £1000 worth of ink cartridges on eBay.  It is scrap but hardly used.  The new Canons (200 and 300) are also a waste of a purchase as the ink cartridges are too small.  As such I am moving to Epson as soon as the P900 is proven and available.  The jury is still out on the former and the latter does not occur until 2021.

I ran my Pro 1000 attached to a UPS as switching it off at night and on again triggered cleaning as did the 60 hour cycle.  It was /is a nightmare!

So I am afraid I cannot answer your question either but I would guess if the Canons with tiny ink volumes carried out the same shameful cleaning cycles of a Pro 1000 then you would be buying Canon ink cartridges often?  You may well know the answer yourself by now and I am sure many would want to know?

Even with a Pro-100, I print a half page purge sheet every other day.  I find that if I let it sit longer than that, ink drops can form on the head and I get smears when I want to print a real photo on good paper.  Doing the purge sheets every other day, I haven't gotten any smears when I do decide to print something nice.

Mike