Canon printer PIXMA MP800R User Manual

Chapter 12 129Troubleshooting
Auto head align has failed.
zA4/Letter-sized paper is not loaded on the Auto Sheet Feeder.
Press [OK] on the machine to clear the error, then load one sheet of A4/
Letter-sized paper in the Auto Sheet Feeder.
Automatic Print Head alignment cannot be performed using paper from 
the Cassette. For automatic Print Head alignment, always load paper in 
the Auto Sheet Feeder.
zPrint Head nozzles are clogged. Press [OK] to resolve the error. Print 
the nozzle check pattern to check...

130Chapter 12Troubleshooting
Cannot See the Display Properly on the LCD/Cannot 
See the Display on the LCD
Note
Adjusting the Print Head Manually
If the Automatic Print Head Alignment does not work or if you wish to adjust the print heads 
manually, follow the procedure below.
1. Press [ON/OFF] to turn on the machine, and then load two sheets of A4/Letter-sized 
plain paper in the Auto Sheet Feeder or Cassette. See “Turning the Machine ON and 
OFF” on page 18, and “Loading Paper” on page 20.
2. Ensure...

Chapter 12 131Troubleshooting
Cannot Scan Films
„Cannot obtain a clean scan, colors scan incorrectly
„Frames are not detected correctly
CauseAction
Film guide not correctly placed on 
the Platen Glass.Insert the film in the film guide supplied for this machine and place it in 
the correct position on the Platen Glass.
The Document Cover is not closed. Close the Document Cover properly.
You have not removed the FAU 
Protective Sheet.Remove the FAU Protective Sheet from under the Document Cover.
The...

132Chapter 12Troubleshooting
Ink Does Not Come Out/Printing is Blurred/Colors are 
Wrong/White Streaks/Straight Lines are Misaligned/
Cannot Print to End of Job
CauseAction
Ink tank is empty. If the ink tank lamp is flashing, ink is empty. Replace the ink tank, and 
close the Scanning Unit (Printer Cover).
If printing is not finished yet, just press [OK] on the machine to continue 
printing in the “no ink” state.
Replace the ink tank with a new one as soon as possible after printing has 
finished. The...

Chapter 12 133Troubleshooting
Print Head nozzles clogged or 
shiftedOpen the Scanning Unit (Printer Cover) and check if all ink tanks lamps 
light red.
Print the nozzle check pattern to check for uneven ink output.
See “Printing the Nozzle Check Pattern” on page 116.
zInk supply is uneven.
See“Print Head Cleaning” on page 118.
See“Print Head Deep Cleaning” on page 119.
zIf straight lines are shifted.
See“Aligning Print Head automatically” on page 120.
Print quality is not set properly. Be sure to set the...

134Chapter 12Troubleshooting
Unnecessary print jobs are queued./
Computer problemsRestart your computer. It may solve the problem.
Delete an undesired print job, if there is any. Use Canon IJ Status Monitor 
in Windows or Printer Setup Utility (or Print Center) in Macintosh for the 
deletion.
1. Open the printer properties dialog box.
2. Click the [Maintenance] tab and then [View Printer Status].
3. Click [Display Print Queue].
4. Select [Cancel All Documents] in the Printer menu.
NoteIn Windows Me or...

Chapter 12 135Troubleshooting
„When Copying
The size of the print data is too large.Check the size of the print data. For Windows XP and Windows 2000, if the 
size of the data is too large, part of it may be lost. When the spool format is 
EMF, follow the procedure below.
1. Open the printer properties dialog box.
2. On the [Page Setup] tab, click [Print Options].
3. Select the [Reduce spool data size] check box, and click [OK].
NoteWhen Reduce spool data size is set, the print quality may be degraded....

136Chapter 12Troubleshooting
Back of Paper is Smudged/Paper Does Not Feed 
Properly/Printed Surface is Scratched
CauseAction
Inside of the machine is dirty. If the inside of the machine is dirty, printed paper may be smudged.
Follow the steps described below to clean the inside of the machine.
1. Press [ON/OFF] to turn on the machine, then remove any paper from the 
Auto Sheet Feeder and Cassette. See “Turning on the Machine” on 
page 18.
2. Place the only one sheet of A4/Letter-size plain paper in...

Chapter 12 137Troubleshooting
Paper Feed Roller is dirty. Follow the steps described below to clean the Paper Feed Rollers.
Cleaning the Paper Feed Rollers consumes them, so perform this 
procedure only when necessary.
1. Press [ON/OFF] to turn on the machine, then remove any paper from the 
Auto Sheet Feeder and Cassette. See “Turning on the Machine” on 
page 18.
2. Use [Feed Switch] to select the paper source to clean.
3. Use [ ] or [ ] to select  from the  
and press [OK].
4. Use [ ] or [ ] to select...

138Chapter 12Troubleshooting
Thick paper is used. If you set the machine to prevent paper abrasion, the clearance between 
the Print Head and the loaded paper is widened. 
If the printing surface is abraded even with the media type set correctly to 
match the loaded paper, set the machine to prevent paper abrasion.
When copying or printing directly, see “If printing surface abrasion is not 
resolved even after taking the actions above:” on page 139.
When printing from a computer, follow the procedure...