Pixma iP4000 does not print text for some users

Run head cleaning and deep head cleaning for few times. If it doesnt help, you can try to remove print head, and clean the nozzles with distiled water.
And after that also run few times head cleaning mode.

have a read here http://www.canon.co.uk/Support/System/Search.aspx?TcmUri=tcm:14-518263&SearchType=3 how to print on CD

You need to use the Canon CD printing software - which should be with the printer or Nero or other CD Writer Software package

• The support site for that printer is here http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&tabact=SupportDetailTabAct&fcategoryid=257&modelid=10239
• The user manual is here http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&tabact=SupportDetailTabAct&fcategoryid=257&modelid=10239#DownloadDetailAct
• Direct link to the user manual http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&tabact=SupportDetailTabAct&fcategoryid=257&modelid=10239#DownloadDetailAct

you are welcome.I have a canon I series printer and I purchaser the cartyridges dirt cheap online. The cartridge work perfectly and I buy them by the box full.
Here is the link to the company. Good luck and haopy new year

http://www.piloshop.ca/

Are you running Vista if so you may need to update the driver if they have one.

Here is a link to your driver and manual.
Make sure to choose the correct operating software.

http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&tabact=SupportDetailTabAct&fcategoryid=257&modelid=10239#DownloadDetailAct

Link to HP users guide and manual for your model :
http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&tabact=SupportDetailTabAct&fcategoryid=257&modelid=10239#DownloadDetailAct

One tank is reserved for colour printing and the other one is for grayscale printing ( Black and white). Watch out as when you run out of ink and you keep trying to print a document with empty tank cartridge it will cause your print head to go bad. The cost of a new canon print head is the same as the cost of a new printer. Canon over priced the print head.

remove print head assembly. clean off.
print head not on cartridge. 

Just choose "landscape' from the printer properties instead of the default 'portrait'. Now adjust the margins, etc so that you can position the text exactly whre you want it

PS. Dont forget to rate this Fixya if the solution worked!
Cheers!
Irish Druid

What program are you printing from? I noticed that sometimes IE7 will print screen content the way you described. The only work-around I have is to copy and paste the content to Word (or other word processor), and format it accordingly.