Canon PIXMA MP800 MP800 User's Guide - Page 120

Cause, Action

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Cause Print Head nozzles clogged or shifted Print quality is not set properly. Action Open 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 102. z Ink supply is uneven. See "Print Head Cleaning" on page 104. See "Print Head Deep Cleaning" on page 105. z If straight lines are shifted. See "Aligning Print Head automatically" on page 106. Be sure to set the [Print Quality] setting to [High] in Windows, or [Fine] in Macintosh. 1. Open the printer properties dialog box. 2. On the [Main] tab, click [High] for the [Print Quality] setting. When you cannot choose the [High] setting or when the print quality does not improve, select [Custom], click [Set] and then adjust the Quality bar for higher print quality. 1. Open the [Print] dialog box. 2. Select [Quality & Media] from the pop-up menu and then click [Detailed Setting]. 3. Drag the [Print Quality] slide bar to the [Fine] end. The media is loaded with the wrong Load the media with the correct side facing upwards. side facing upwards. The paper stack exceeds the If the paper stack exceeds the paper limit mark, or exceeds the capacity of capacity of the Auto Sheet Feeder or the Auto Sheet Feeder or Cassette, reduce the amount of paper. See Cassette. "Recommended Paper and Requirements" on page 19. There is some foreign matter in the Check and remove any foreign matter. Auto Sheet Feeder or Cassette. The paper source is not configured Make sure that the paper source in which the paper is loaded is correctly properly. configured. See "Changing the Paper Source" on page 23. The Paper Output Tray is closed. Press the Open Button to open the Paper Output Tray. Inner Cover is open. Close Inner Cover then press [OK] on the machine. 118 Troubleshooting Chapter 12

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118
Chapter 12
Troubleshooting
Print Head nozzles clogged or
shifted
Open 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 102
.
Ink supply is uneven.
See
“Print Head Cleaning” on page 104
.
See
“Print Head Deep Cleaning” on page 105
.
If straight lines are shifted.
See
“Aligning Print Head automatically” on page 106
.
Print quality is not set properly.
Be sure to set the [Print Quality] setting to [High] in Windows, or [Fine] in
Macintosh.
1. Open the printer properties dialog box.
2. On the [Main] tab, click [High] for the [Print Quality] setting.
When you cannot choose the [High] setting or when the print quality does
not improve, select [Custom], click [Set] and then adjust the Quality bar
for higher print quality.
1. Open the [Print] dialog box.
2. Select [Quality & Media] from the pop-up menu and then click [Detailed
Setting].
3. Drag the [Print Quality] slide bar to the [Fine] end.
The media is loaded with the wrong
side facing upwards.
Load the media with the correct side facing upwards.
The paper stack exceeds the
capacity of the Auto Sheet Feeder or
Cassette.
If the paper stack exceeds the paper limit mark, or exceeds the capacity of
the Auto Sheet Feeder or Cassette, reduce the amount of paper. See
“Recommended Paper and Requirements” on page 19
.
There is some foreign matter in the
Auto Sheet Feeder or Cassette.
Check and remove any foreign matter.
The paper source is not configured
properly.
Make sure that the paper source in which the paper is loaded is correctly
configured. See
“Changing the Paper Source” on page 23
.
The Paper Output Tray is closed.
Press the Open Button to open the Paper Output Tray.
Inner Cover is open.
Close Inner Cover then press [OK] on the machine.
Cause
Action