Error 88 or Support Code 88 in Canon Driver printing on art paper from Lightroom

Question

Re: Error 88 (Support Code 88) of Canon Printer Driver, using Pixma Pro9500 - April 20, 2014
I'm replying to myself from two years ago, and to the rest of you, regarding Error 88.  (My question of April 2012 is in the Photoshop department of Adobe Community.  For those who don't know but are reading this anyway for some reason, Error 88 is a message from the Canon Printer Driver that tells you you haven't set the paper size correctly for printing on fine-art paper.  But it may appear anyway, even if your settings are correct.)
At the time I found no resolution to the problem, just a workaround: to print from Lightroom itself. Too bad this was after months of hassle and expense, including a probably fraudulent (and certainly useless) repair (supposedly replacing the Pixma's logic board and paper sensor), and the ministrations of a techie who could only conclude there was something wrong with my copy of Photoshop which provoked the Error 88. But he made me realise I could print from Lightroom, and that's what I've been doing ever since.  (The possibility had never occurred to me, as my routine of printing from Photoshop was working fine.)  This has been a good move after all, since Lightroom offers many advantages over PS where printing is concerned:  tonal controls and more in Develop, and the possibility of creating a Saved Print.
But to print from Lightroom, I had to crop my printing files to the image. (In PS I had always created a document the same size as the paper I planned to use – A4 or A3+ – and positioned the image where I wanted, with margins all around. But in Lightroom I set margins and position in Print Mode, starting with a borderless file.) This was a bit of work, but unavoidable, and a good thing on the whole. So for a couple of years I printed in this way.
But meanwhile, my 2009 iMac was developing other problems, and finally I had to replace it. (After only two or three years of use, it was shutting down spontaneously, a problem no one was able to resolve, about which every techie has a different opinion, and about which Apple is completely mute and unresponsive; thank you Apple Computer for your supposedly ultra-reliable products – I can only say it’s a good thing you don’t make pacemakers).
So for about ten weeks now I have a nice shiny new 2013 iMac, but I’m keeping my fingers crossed. Also I have the new OS Mavericks, new versions of Photoshop CS6 and Lightroom 5, the new Canon Driver. I have my complaints about the OS (particularly a few interface/viewing design choices that strike me as colossally stupid and unnecessary), but that's beside the point here.
Having not yet printed with the new setup (nor for a few months before), and knowing that it's good to use your Pixma now and then, I thought I'd dedicate a few hours to printing. I figured it could work out easy, since I planned to print from Saved Prints. But as soon as I hooked it all up, checked my settings, and clicked Print, I see the printer icon bouncing in the Dock with its little yellow trouble flag. I check that out and am very dismayed to see my old nemesis, Error 88, which tells me I haven't set the paper size correctly. But it's correct, of course. (As before, I'm printing on fine art paper, A3+.) Beg your pardon, Canon now calls it "Support Code 88", thinking of all the Support you'll get from them.
I tried a few of the obvious things: start/restart computer, printer, Lightroom, etc., but to no avail. Also, supposing that my Saved Prints were perhaps no longer valid in the new LR, I tried to print directly from the file, bypassing the Saved Print, but no go.
I should also note that, in Page Setup, the Default paper size “Super B/A3” (330x483mm) was new to me – seems to me you could set “A3+ Art Margins”. A3+ as I know it from the fine-art papers I use is 329x483mm anyway (also as given in Page Setup), if that makes any difference.
If it's any use, here are some particulars on the current situation:
iMac 27”, late 2013, 3.4 GHz Intel Core i5, 8 GB, Mac OSX 10.9.2
Lightroom 5.3 (Camera RAW 8.3)
Photoshop CS6 (version 13.0 x64)
Canon PrinterDriver_Pro9500 series_108420 (10.84.2.0)
And my settings:  LR Page Setup: set “Art A3+ (Margin 35)”System Prefs/Printers & Scanners – set Default paper size “Super B/A3” (330x483mm) (found via “Format For:” in Page Setup)LR Print Settings:
Printer: Canon Pro9500 series (exclamation point – not recognized?)
Presets: Last Used Settings
Color Matching: Canon
Paper Handling: All Pages – Automatic – NO “Scale to fit paper size” (but “Destination Paper Size, though grayed out, reads “Suggested Paper: Art A3+ (Margin 35”)
Quality & Media: Media Type: Fine Art “Photo Rag” (or “FA Museum Etching” or “FA Matte”); Paper Source: Front Tray; Print Quality: High; YES Grayscale Printing
Color Options:
Color Mode: Standard; C-M-Y and Tone all left at zero
Brightness: Normal; Intensity and Contrast both left at zero
It all looks kosher to me.  Does anybody know anything about this problem? I'll be very grateful.
AlienAl - still alien after all these years

Answer 1

Apple and Canon programmers don't read here.
You need to tell them about this at www.apple.com/feedback