Canon printer PIXMA i850 Series User Manual
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Replacing an Ink Tank 71 Routine Maintenance 4Remove the orange protective cap from the bottom of the ink tank. Importantä¥ Do not re-attach the protective cap once you have removed it. ¥ Once you have removed the protective cap, do not touch the open ink port. Never press here! Ink may squirt out of the tank.
Replacing an Ink Tank 72 Routine Maintenance 5Insert the ink tank in the print head holder. Press on the PUSH mark until the ink tank snaps Þrmly into place. 6Close the front cover. The print head holder moves to the right. The ink tank installation process is now complete. Note ä¥ To maintain optimal print quality, use an ink tank within six months of Þrst use. ¥ Once an ink tank has been used, do not remove it from the printer and leave it out in the open. An ink tank left out in the open and then reinstalled in the printer may not function. ¥ Color ink consumption may occur even when black-and-white or grayscale printing is speciÞed. Also, color ink is consumed in the head cleaning and refreshing processes, which are necessary to maintain the printerÕs capabilities.
Printing the Nozzle Check Pattern 73 Routine Maintenance Printing the Nozzle Check Pattern Print the nozzle check pattern to determine whether the ink sprays normally from the print head nozzles, and to verify print head alignment. Use this function when printed results are blurred or the color is incorrect. Nozzle check pattern printing can be executed from the Windows and Macintosh printer drivers, or from the printer itself. nPrinting the Nozzle Check Pattern from the Printer Drivers Windows 1With the printer on, load a sheet of A4 or Letter paper in the printer. 2Open the Printer Properties dialog box. áOpening the Printer Properties Dialog Box 3Click the Maintenance tab and then click the Nozzle Check icon. 4When the conÞrmation message is displayed, click OK. áExamining the Nozzle Check Pattern
Printing the Nozzle Check Pattern 74 Routine Maintenance Macintosh 1With the printer on, load a sheet of A4 or Letter paper in the printer. 2Open the Page Setup dialog box. The Page Setup dialog box can normally be opened by selecting Page Setup... in the File menu. 3Click the Utilities button to open the Printer Utilities dialog box. 4Select Test Print from the pull-down menu, and then click the Nozzle Check icon. 5When the conÞrmation message is displayed, click OK. áExamining the Nozzle Check Pattern
Printing the Nozzle Check Pattern 75 Routine Maintenance nPrinting the Nozzle Check Pattern through the Printer 1With the printer on, load a sheet of A4 or Letter paper in the printer. 2Hold the RESUME/CANCEL button down until the POWER lamp ßashes twice. áExamining the Nozzle Check Pattern
Printing the Nozzle Check Pattern 76 Routine Maintenance nExamining the Nozzle Check Pattern The nozzle check pattern should appear as follows when ink is discharged properly. Examine the nozzle check pattern output by the printer. Lines missing here indicate the print head requires cleaning. Unevenness in these patterns indicates the print head requires alignment. Horizontal stripes in these patterns indicate the print head requires alignment.
Print Head Cleaning 77 Routine Maintenance Print Head Cleaning Clean the print head if you suspect that the nozzles might be clogged. Head cleaning can be performed either from the printer drivers or from the printer itself. Note äCleaning the head consumes ink, so perform head cleaning only when necessary. nCleaning the Print Head from the Printer Drivers Windows 1Ensure that the printer is on. 2Open the Printer Properties Dialog Box. áOpening the Printer Properties Dialog Box 3Click the Maintenance tab and then click the Cleaning icon.
Print Head Cleaning 78 Routine Maintenance 4Select the ink nozzles to be cleaned, and then click Execute. All Colors: All nozzles Black: Black ink nozzles Color: Color ink nozzles 5When the conÞrmation message is displayed, click OK. Macintosh 1Ensure the printer is on. 2Open the Page Setup dialog box. The Page Setup dialog box can normally be opened by selecting Page Setup... in the File menu. 3Click the Utilities button to open the Printer Utility dialog box. 4Select Cleaning from the pull-down menu, and then click the Cleaning icon.
Print Head Cleaning 79 Routine Maintenance 5Select the ink nozzles to be cleaned, and then click OK. All Colors: All nozzles Black: Black ink nozzles Color: Color ink nozzles nCleaning the Print Head from the Printer This operation cleans all nozzles, both black and color. Because this method also resets the printer, any print data stored in the printer is lost. 1Ensure the printer is on. 2Hold down the RESUME/CANCEL button until the POWER lamp ßashes once. Now the POWER lamp starts ßashing and print head cleaning begins. Do not perform any other operations until the head cleaning Þnishes. This takes about 40 seconds. After print head cleaning Þnishes, print the nozzle check pattern to verify that the print head is clean. If not, repeat print head cleaning. If the head is still not clean after the third cleaning, perform print head deep cleaning. áPrinting the Nozzle Check Pattern áPrint Head Deep Cleaning
Print Head Deep Cleaning 80 Routine Maintenance Print Head Deep Cleaning If print quality does not improve by standard print head cleaning, try deep cleaning, which is a more powerful process. Perform print head deep cleaning from the printer driver. Note äPrint head deep cleaning consumes more ink than standard print head cleaning, so perform this procedure only when necessary. Windows 1Ensure the printer is on. 2Open the Printer Properties dialog box. áOpening the Printer Properties Dialog Box 3Click the Maintenance tab and then click the Deep Cleaning icon. 4Select the ink nozzeles to be cleaned, and then click Execute. All Colors: All nozzles Black: Black ink nozzles Color: Color ink nozzles 5When the conÞrmation message is displayed, click OK.