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Canon printer PIXMA MX7600 User Manual

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Page 141

137
Troubleshooting
“Incompatible device detected. 
Remove the device.” z
A communication time out occurs if an operation takes too long or if it takes 
too much time to send data. This may cancel printing. In such cases, 
disconnect and reconnect the USB cable.
When printing from a PictBridge compliant device, depending on the model 
or brand of your device, you may have to select a PictBridge compliant print 
mode on the device before connecting it to the machine. You may also have 
to turn on your...

Page 142

138Troubleshooting
“Received in memory.” If the machine receives a fax under one of the following conditions, the machine 
will not be able to print the received fax and will store it in its memory. When the 
problem is resolved as described, the fax stored in memory is printed 
automatically.
zInk has run out while receiving a fax: replace the ink tank. See “Replacing an 
Ink Tank” on page 103.
NoteYou can set to print the received fax forcibly even if an ink other than the clear 
ink has run out....

Page 143

139
Troubleshooting
LCD Cannot Be Seen At All  or Display is Difficult to 
See
An Unintended Language Is Displayed on the LCD
CauseAction
The machine is not powered on or the 
LCD is in the screen-saver mode. z
If all the lamps on the Operation Panel are off
The machine is not powered on. Plug the power cord in and press the  ON/
OFF  button. The machine will power on and the LCD will display a message.
z If one of the mode buttons (e.g., the  COPY button) is lit
The LCD may be in the screen-saver mode....

Page 144

140Troubleshooting
Cannot Install the MP Drivers
CauseAction
Unable to proceed beyond the Printer 
Connection screen.If you were unable to proceed beyond the Printer Connection screen, make 
sure that the USB cable is securely plugged into the USB port of the machine 
and is connected to the computer, and then follow the procedure below to 
reinstall the MP Drivers.
In Windows Vista, “The printer is not detected. Check the connection.” may 
be displayed depending on the computer you use. In this case,...

Page 145

141
Troubleshooting
Cannot Connect to Computer Properly
„ Printing or Scanning Speed Is Sl ow/USB 2.0 Hi-Speed Connection Does 
Not Work
„ “This device can perform faster” Message Is Displayed
Installation procedure not followed 
correctly. Follow the procedure described in your setup sheet or the 
Network Setup Guide 
for proper installation.
If the MP Drivers were not installed correctly, uninstall the MP Drivers, restart 
your computer, and then reinstall the MP Drivers. Refer to the  PC Printing...

Page 146

142Troubleshooting
Print Results Not Satisfactory
If the print result is not satisfactory such as  white streaks, misaligned lines, and uneven colors, 
confirm the paper and print quality settings first.
z Check 1: Do the page size and media type settings match the size and 
type of the loaded paper?
When these settings are incorrect,  you cannot obtain a proper print result. If you are printing a 
photograph or an illustration, incorrect paper type  setting may reduce the quality of printout color....

Page 147

143
Troubleshooting
„ Printing Does Not Start/Printing Is Blurred/Colors Are Wrong/Straight 
Lines Are Misaligned
„ White Streaks
„ Printed Paper Curls or Has Ink Blots
CauseAction
The media is loaded with the wrong 
side facing upwards. When using paper with one printable surface, make sure that the paper is 
loaded in the Rear Tray with the printable side facing up or in the Cassette with 
the printable side facing down.
Printing on the wrong side may cause unclear prints or prints with reduced...

Page 148

144Troubleshooting
„Printed Surface Is Scratched/Paper Is Smudged
CauseAction
Printing on inappropriate type of paper.
zCheck to see if the paper you are printing on is not too thick or curled.
See “Paper Handling” on page 21 to make sure that the paper you are using 
is suitable.
If the paper is curled, see “Paper is curled.” on page 144 to correct paper 
curl.
z When performing Borderless Printing, print quality may be reduced at the top 
and bottom edges of the paper. Make sure that the paper you are...

Page 149

145
Troubleshooting
„ Colors Are Uneven or Streaked
The Print Result Not Sa tisfactory When Copying
If these do not resolve the problem, also see  “Print Results Not Satisfactory” on page 142.
Paper Feed Roller is dirty. Clean the Paper Feed Roller. Cleaning the Paper Feed Roller will wear the 
roller, so perform this procedure only when necessary.
For details on cleaning, see “Cleaning the Paper Feed Roller (Roller Cleaning)” 
on page 125.
Inside of the machine is dirty. Performing duplex printing may...

Page 150

146Troubleshooting
Printing Does Not Start
CauseAction
Ink tank is empty. See “An Error Message Is Displayed on the LCD” on page 133 to identify the ink 
error, and then take the appropriate action depending on the error condition.
Ink tank not installed in proper position. Open the Scanning Unit (Printer Cover) and check the ink lamps. If there is still sufficient ink but its ink lamp is flashing red, an ink tank may be 
installed in a wrong position.
Confirm that the ink tanks are installed in the...
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