Canon Pixma Ip4850 User Guide

							The Nozzle Check dialog box opens after the confirmation message. 
5.Check the results  
To check whether the print quality has improved, click P rint Check Pattern. To cancel the check
process, click Cancel. 
Important 
Cleaning consumes a small amount of ink. Deep Clean ing consumes a larger amount of ink than
Cleaning. 
Cleaning the print heads frequently will rapidly de plete your printers ink supply. Consequently,
perform cleaning only when necessary. 
Note 
If there is no sign of improvement after Deep Clean ing, switch off the printer, wait 24 hours, and
then perform Deep Cleaning again. If there is still  no sign of improvement, the ink may have run out
or the print head may be worn. For details on the r emedial action to be taken, see 
Printer Moves
But Ink Is Not Ejected
. 
Related Topic 
Checking the Print Head Nozzles
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Cleaning the Print Heads
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							Advanced Guide > Maintenance > Performing Maintenance from a Computer > Cleaning the Paper Feed Rollers 
P027 
Cleaning the Paper Feed Rollers 
Cleans the paper feed roller. Perform feed roller cleaning when there are paper particles sticking to  the
paper feed roller and paper is not fed properly.  
The procedure for performing the feed roller cleani ng is as follows: 
 Roller Cleaning 
1.Prepare the printer  
Remove all sheets of paper from the paper source fr om which paper could not be properly fed. 
2.Open the printer driver setup window
3.
Click Roller Cleaning on the Maintenance tab  
The Roller Cleaning dialog box opens. 
4.Select Rear Tray or Cassette, and click OK  
The confirmation message appears. 
5.Execute paper feed roller cleaning  
Make sure that the printer is on and click OK. 
Paper feed roller cleaning starts. 
6.Complete paper feed roller cleaning  
After the rollers have stopped, follow the instruct ion in the message, load three sheets of plain
paper into the selected paper source of the printer , and click OK. 
Paper will be ejected and feed roller cleaning will  be completed. 
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Cleaning the Paper Feed Rollers
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							Advanced Guide > Maintenance > Performing Maintenance from a Computer > Aligning the Print Head Position 
P028 
Aligning the Print Head Position 
Print head alignment corrects the installation positions of the print head and improves deviated color s
and lines.  
This printer supports two head alignment methods: a utomatic head alignment and manual head
alignment. Normally, the printer is set for automat ic head alignment.
If the printing results of automatic print head ali gnment are not satisfactory, see 
Manual Print Head
Alignment
, and perform manual head alignment. To change to  the manual head alignment, click
Custom Settings on the Maintenance tab, and then ch eck the Align heads manually check box. 
The procedure for performing print head alignment i s as follows: 
 Print Head Alignment 
1.Open the printer driver setup window
2.
Click Print Head Alignment on the Maintenance tab  
The Start Print Head Alignment dialog box opens. 
3.Load paper in the printer  
Load a sheet of A4 size or Letter size Matte Photo Pap er (MP-101) into the rear tray. 
Note 
The type of media and number of sheets to be used d iffer when you select the manual head
alignment. 
4.Execute head alignment  
Make sure that the printer is on and click Align Print  Head.
Follow the instruction in the message. 
Note 
To print and check the current setting, open the Start  Print Head Alignment dialog box, and click
Print Alignment Value. 
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Aligning the Print Head Position
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							Advanced Guide > Maintenance > Performing Maintenance from a Computer > Manual Print Head Alignment
U065
Manual Print Head Alignment
This section describes how to align the Print Head  manually.
If the results of Automatic Print Head Alignment are n ot satisfactory, follow the procedure below to
perform Manual Print Head Alignment to precisely al ign the Print Head.
For details on performing Automatic Print Head Alignm ent, refer to 
Routine Maintenance.
Note
Close the Inner Cover if it is open.
The print head alignment pattern is printed in black and blue only.
1.Make sure that the printer is turned on.
2.Load three sheets of A4 or Letter-sized plain paper  in the Cassette.
3.Open the Paper Output Tray and extend the Output Tr ay Extension.
4.Print the pattern.
1. Open the printer properties dialog box.
Open the Printer Driver Setup W indow through the St art Menu
2.
Click the Maintenance tab, then Custom Settings.
3. Select the Align heads manually check box, then cli ck Send.
4. Confirm the displayed message and click OK.
5. In the Maintenance sheet click Print Head Alignment .
6. Confirm the displayed message and click Align Print  Head.
Important
Do not open the Top Cover while printing is in progress.
Note
To confirm the current setting, click Print Alignment Va lue and print the pattern.
7. After the pattern is printed, click Yes. 
The dialog for entering a print head alignment valu
e is displayed.
5.Look at the first printout and adjust the print head p osition.
1. Check the printed patterns and select the number of  the pattern in column A that has the least
noticeable vertical streaks. Page 364 of 468 pages
Manual Print Head Alignment
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							Note
If it is difficult to pick the best pattern, pick the setting that produces the least noticeable
vertical white streaks.
(A) Less noticeable vertical white streaks 
(B) More noticeable vertical white streaks
2. Repeat the procedure until you finish inputting the p
attern number for column G, then click OK.
For column F and G, pick the setting that produces  the least noticeable horizontal streaks.
Note
If it is difficult to pick the best pattern, pick the setting that produces the least noticeable
horizontal white streaks.
(C) Less noticeable horizontal white streaks 
(D) More noticeable horizontal white streaks
3. Confirm the displayed message and click OK. 
The second pattern is printed.
Important
Do not open the Top Cover while printing is in prog ress.Page 365 of 468 pages
Manual Print Head Alignment
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							6.Look at the second printout and adjust the print head position.
1. Check the printed patterns and select the number of  the pattern in column H that has the least
noticeable vertical streaks.
Note
If it is difficult to pick the best pattern, pick the set ting that produces the least noticeable
vertical white streaks.
(E) Less noticeable vertical white streaks 
(F) More noticeable vertical white streaks
2. Repeat the procedure until you finish inputting the p attern number for column Q, then click OK.
3. Confirm the displayed message and click OK. 
The third pattern is printed.
Important
Do not open the Top Cover while printing is in prog ress.
7.Look at the third printout and adjust the print head  position.
1. Check the printed patterns and select the number of  the pattern in column a that has the least
noticeable horizontal streaks. Page 366 of 468 pages
Manual Print Head Alignment
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							Note
If it is difficult to pick the best pattern, pick the setting that produces the least noticeable
horizontal white streaks.
(G) Less noticeable horizontal white streaks 
(H) More noticeable horizontal white streaks
2. Repeat the procedure until you finish inputting the pa ttern number for column j, then click OK.
3. Confirm the displayed message and click OK. 
Manual Print Head Alignment is complete.
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Manual Print Head Alignment
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							Advanced Guide > Maintenance > Performing Maintenance from a Computer > Checking the Print Head Nozzles 
P029 
Checking the Print Head Nozzles 
The nozzle check function allows you to check wheth er the print heads are working properly by printing a
nozzle check pattern. Print the pattern if printing b ecomes faint, or if a specific color fails to print. 
The procedure for printing a nozzle check pattern i s as follows: 
 Nozzle Check 
1.Open the printer driver setup window
2.
Click Nozzle Check on the Maintenance tab  
The Nozzle Check dialog box opens. 
Click Initial Check Items to display the items that you  need to check before printing the nozzle check
pattern. 
3.Load paper in the printer  
Load a sheet of A4 size or Letter size plain paper  into the cassette. 
4.Print a nozzle check pattern  
Make sure that the printer is on and click Print Check P attern.
Printing of the nozzle check pattern begins.  
Click OK when the confirmation message appears. 
The Pattern Check dialog box opens. 
5.Check the print result  
Check the print result. W hen the print result is normal , click Exit.
If the print result is smudged or if there are any  unprinted sections, click Cleaning to clean the pri nt
head. 
Related Topic 
Cleaning the Print Heads
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Checking the Print Head Nozzles
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							Advanced Guide > Maintenance > Performing Maintenance from a Computer > Cleaning Inside the Printer 
P030 
Cleaning Inside the Printer 
Perform bottom plate cleaning before you execute duplex printing to prevent smudges on the back side
of the paper. 
Also perform bottom plate cleaning if ink smudges c aused by something other than print data appear on
the printed page.  
The procedure for performing bottom plate cleaning  is as follows: 
 Bottom Plate Cleaning 
1.Open the printer driver setup window
2.
Click Bottom Plate Cleaning on the Maintenance tab  
The Bottom Plate Cleaning dialog box opens. 
3.Load paper in the printer  
As instructed in the dialog box, fold the A4 size or Le tter size plain paper in half horizontally, and then
unfold the sheet. 
Load the paper into the rear tray in the portrait o rientation with the crest of the crease facing down. 
4.Perform the bottom plate cleaning  
Make sure that the printer is on and click Execute. 
Bottom plate cleaning starts. 
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Cleaning Inside the Printer
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							Advanced Guide > Changing the Printer Settings 
Changing the Printer Settings 
Changing Printer Settings from Your Computer
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Changing the Printer Settings
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