My old Laserjet 4 still prints out great-looking pages, but pages were starting to jam. The printer is less than 10 years old, built like a tank, and should last for another decade. I looked in vain for a fix, and was just about ready to write it off when I stumbled across fixyourownprinter.com. This company sells parts packages for all sorts of printers (HP, Lexmark, Apple, Epson). Their Web page described the exact problem I was having, with details about the specific problem that lead me to believe they know what they’re talking about. The package I looked at also includes a video (on CD-ROM) that shows how to install the replacement parts.
I’ve ordered the repair kit. I’ll let you know whether it works.
Ed Bott 
I have a Canon pixma IP1000 which keeps suggesting that the waste ink absorber is nearly full and the printer needs resetting every time i need to use it.I have looked on the Canon manual and cannot seem to be able to find a waste ink absorber anywhere on the printer.
I would be grateful if anyone could clarify this for me.
John