Canon PIXMA iP4820 On-Screen Manual - Page 385

Alarm Lamp Flashes Orange Six flashes: The Inner Cover is opened. Seven flashes: Ink tank is not installed in the correct position. Eight flashes: Ink absorber is almost full. Nine flashes: The printer has not received a response from the digital camera./The digital camera or digital video camcorder connected is not compatible with this printer. Ten flashes: Cannot perform duplex printing. Eleven flashes: Automatic Print Head Alignment failed. Page 385 of 468 pages If the error is still not resolved, the Print Head may be damaged. Contact the service center. When you start printing on paper, close the Inner Cover, then press the RESUME/CANCEL button on the printer. Some ink tanks are not installed in the correct position. (The lamps on the ink tanks flash.) More than one ink tanks of the same color are installed. (The lamps on the ink tanks flash.) Confirm that the ink tanks are installed in the appropriate positions. Routine Maintenance The ink absorber is almost full. Press the printer's RESUME/CANCEL button to continue printing. Contact the service center. Check the device connected to the printer. Printing photos directly is possible only with a PictBridge compliant device. 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 printer. You may also have to turn on your device or select Play mode manually after connecting the device to the printer. Perform necessary operations before connecting your device referring to its instruction manual. If the error is still not resolved, check if you can print another photograph. The size of paper may not be compatible with automatic duplex printing. The sizes of media suitable for auto duplex printing are A4, Letter, A5, and B5. Make sure that the size of the paper loaded in the printer is correct. Pressing the RESUME/CANCEL button will eject the paper and restart printing from the front side of the next paper. The reverse side of the ejected sheet will not be printed. Print Head nozzles are clogged. Press the RESUME/CANCEL button to dismiss the error, and print the nozzle check pattern to check the status of the Print Head. Routine Maintenance Paper of size other than A4 or Letter is loaded in the Rear Tray. Press the RESUME/CANCEL button to dismiss the error, then load a sheet of A4/Letter-sized Canon Matte Photo Paper MP-101 with the printing side (whiter side) facing UP in the Rear Tray. For Automatic Print Head Alignment, always load paper on the Rear Tray. The Paper Output Slot is exposed to strong light.