The printer still didn't print anything, but for the first time, it woke up and spun its machinery, some. The job status message is "Failed to read side-channel request!" Here is the CUPS error log:
E [14/Apr/2012:19:35:50 -0500] CanonMP620: File "/usr/libexec/cups/filter/pstocanonij" not available: No such file or directory
E [14/Apr/2012:19:45:05 -0500] [CGI] Could not determine driver name for Canon-MULTIPASS-MP610-gutenprint-ijs.5.2.ppd!
E [14/Apr/2012:19:45:05 -0500] copy_model: empty PPD file
E [14/Apr/2012:19:45:05 -0500] Returning IPP server-error-internal-error for CUPS-Add-Modify-Printer (ipp://localhost/printers/CanonMP620) from localhost
E [14/Apr/2012:19:45:17 -0500] [CGI] Could not determine driver name for Canon-MULTIPASS-MP610-gutenprint-ijs-simplified.5.2.ppd!
E [14/Apr/2012:19:45:17 -0500] copy_model: empty PPD file
E [14/Apr/2012:19:45:17 -0500] Returning IPP server-error-internal-error for CUPS-Add-Modify-Printer (ipp://localhost/printers/CanonMP620) from localhost
E [14/Apr/2012:19:45:31 -0500] [CGI] Could not determine driver name for Canon-MULTIPASS-MP620-gutenprint-ijs.5.2.ppd!
E [14/Apr/2012:19:45:31 -0500] copy_model: empty PPD file
E [14/Apr/2012:19:45:31 -0500] Returning IPP server-error-internal-error for CUPS-Add-Modify-Printer (ipp://localhost/printers/CanonMP620) from localhost
E [14/Apr/2012:19:45:39 -0500] [CGI] Could not determine driver name for Canon-MULTIPASS-MP620-gutenprint-ijs-simplified.5.2.ppd!
E [14/Apr/2012:19:45:39 -0500] copy_model: empty PPD file
E [14/Apr/2012:19:45:39 -0500] Returning IPP server-error-internal-error for CUPS-Add-Modify-Printer (ipp://localhost/printers/CanonMP620) from localhost
W [14/Apr/2012:19:48:01 -0500] [Job 12] Failed to read side-channel request!
W [14/Apr/2012:19:48:01 -0500] [Job 12] Failed to read side-channel request!
W [14/Apr/2012:19:48:01 -0500] [Job 12] Failed to read side-channel request!
W [14/Apr/2012:19:48:01 -0500] [Job 12] Failed to read side-channel request!
W [14/Apr/2012:19:48:01 -0500] [Job 12] Failed to read side-channel request!
W [14/Apr/2012:19:48:01 -0500] [Job 12] Failed to read side-channel request!
W [14/Apr/2012:19:48:01 -0500] [Job 12] Failed to read side-channel request!
W [14/Apr/2012:19:48:01 -0500] [Job 12] Failed to read side-channel request!
W [14/Apr/2012:19:48:01 -0500] [Job 12] Failed to read side-channel request!
W [14/Apr/2012:19:48:01 -0500] [Job 12] Failed to read side-channel request!
W [14/Apr/2012:19:48:01 -0500] [Job 12] Failed to read side-channel request!
W [14/Apr/2012:19:48:01 -0500] [Job 12] Failed to read side-channel request!
W [14/Apr/2012:19:48:01 -0500] [Job 12] Failed to read side-channel request!
W [14/Apr/2012:19:48:01 -0500] [Job 12] Failed to read side-channel request!
W [14/Apr/2012:19:48:01 -0500] [Job 12] Failed to read side-channel request!
W [14/Apr/2012:19:48:01 -0500] [Job 12] Failed to read side-channel request!
W [14/Apr/2012:19:48:01 -0500] [Job 12] Failed to read side-channel request!
The current status of the printer in CUPS is, "Idle - Ready to print".
Tim
