Canon MX850 - paper feed

6A00] or Light blinking 12 times = AP position error. It's mean there is an error occurred in the AP motor during purging operation. You may need to replace Sheet feed unit, logic board or purge unit. Thank you

Error 6000 is a line feed error, it means the platen roller isn't advancing properly. It usually means something has fallen in from the back where the paper goes and is stop moving of rollers.

The feed switch changes the paper feed from rear feed to tray feed (paper tray is under the output bin). If you have paper in the rear feed, the green light should be on top of the printer icon left of the feed switch. If you have paper in the tray, the light should be on the bottom of the printer icon.

Mel, this is what I found in the online manual:

Set the Ink Drying Wait Time longer.
Doing so gives the time enough to dry the printed surface so that paper curling and ink blots are prevented.

(1) Make sure that the machine is turned on.
(2) Open the printer properties dialog box.
See Opening the Printer Properties Dialog Box Directly from the Control Panel.
(3) Click the Maintenance tab and then Custom Settings.
(4) Drag the Ink Drying Wait Time slide bar to set the wait time, and then click Send.
(5) Confirm the message and click OK.


Make sure that the actual size of the paper is suitable for automatic duplex printing.
The sizes of media suitable for automatic duplex printing are A4, Letter, A5, B5, and 5" x 7".
Load paper of suitable size and then press the OK button.
Make sure that the Page Size or Paper size setting matches the actual size of the paper with a size suitable for automatic duplex printing.
First, check the Page Size or Paper size setting in the application software you are printing from.
Then, check the Page Size setting on the Page Setup sheet in the printer properties dialog box (Windows) or the Paper size setting on the Page Setup dialog box (Macintosh).
Note
Depending on the version of the application program, the automatic duplex printing may not be supported.
Make sure that the type of loaded paper is suitable for automatic duplex printing on the Main sheet (Windows) or the Quality & Media sheet on the Print dialog box (Macintosh).
Note
To switch to manual duplex printing, follow the procedure below.

Open the printer properties dialog box, clear the Automatic check box on the Page Setup sheet, and reprint.
When performing manual duplex printing, note the following.
If you are printing three or more pages of a document with manual duplex printing, one side of all sheets of paper will be printed first. Turn over the paper and reload the paper in the machine, and then the reverse side of all sheets of paper will be printed. Be careful not to change the order of paper in the stack.
The procedure for reversing the paper varies depending on the staple side and printing orientation. Follow the on-screen instructions.
MX850 series On-screen Manual for Windows:

http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&tabact=DownloadDetailTabAct&fcategoryid=334&modelid=16279

Click on this link or copy and paste the complete link into your browser.
If I could be of further assistance, let me know. If this helps or solves the issue, please rate it.
Thanks, Joe


I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_8b8c2cd6ce148309

Go to this site. In the search window in the center of the screen, type "paper tray" and click on the Search button. Select the link "How do I load the paper". When the document comes up, select the link "Cassette" near the top. You will see illustrated step-by-step instructions. If you are missing the cassette tray, contact Canon.