MP830: sporadic white bands with black text when printing

[Joy2]

Getting sporadic white (blank) horizontal bands across the paper when trying to print a copy of a letter.  The position of the blank bands changes when I reprinted it several times.  The printer was working just fine the day before.  There have been no ink cartridge changes, all have ink.   Nozzle pattern for colors are fine, including the black.  Looks like the patten for the "checked" pattern is only half printed as the lower portion of "PGBK" is missing. Tried "Print Head Deep Cleaning" but no change. Any ideas?

[Patrick]

Hi Joy2,

Please try cleaning the encoder/timing strip following the steps provided in this Knowledgebase Article:

https://support.usa.canon.com/kb/index?page=content&id=ART133115

Even though the article does not show your model, the steps are the same.

If the issue persists, your PIXMA MP830 would require service.

You are eligible for Canon's Upgrade Program.  This is for out of warranty units which have been diagnosed to require service, or for some reason are incompatible with a new or upgraded system.  This option allows you a one-time opportunity to purchase a replacement product, discounted from the list price.

To help you get up and running quickly, we also offer free standard shipping (if the order is completed by 12:30PM ET).  If you would like to take part in this option, please call our Sales Department at (866) 443-8002 seven days a week, 8am to Midnight.  Let them know you have been working with technical support and the Canon Upgrade Program was offered.