Adjusting The Printhead; Automatic Adjustment To Straighten Lines And Colors - Canon iPF840 User Manual

Adjusting the Printhead

Adjusting the Printhead
Adjusting the Printhead
Adjusting the Printhead .................................................................................................................................. 550

Automatic Adjustment to Straighten Lines and Colors ............................................................................... 550

Manual Adjustment to Straighten Lines and Colors .................................................................................... 552
Adjustment When Installing the Printhead .................................................................................................. 553
Adjusting Line Misalignment ........................................................................................................................... 554
Troubleshooting Paper Abrasion and Blurry Images ........................................................................................ 556
Adjusting the Printhead
Adjusting the Printhead
If printed documents are affected by the following problems, try adjusting the printhead.
Printing is faint or affected by banding in different colors
•
Execute Nozzle Check in the Control Panel menu to check for printhead nozzle clogging.
For instructions, see "Checking for Nozzle Clogging."
Printed vertical lines are warped or colors are out of alignment
•
Execute Head Posi. Adj. in the Control Panel menu to adjust the printhead position.
• Normally, execute Standard.
(See "Automatic Adjustment to Straighten Lines and Colors.")
• When printing on special paper, or if printing is not improved after Standard, try Manual.
(See "Manual Adjustment to Straighten Lines and Colors.")
Note
Paper rubs against the printhead, or image edges are blurred
•
Selecting Head Height in the Control Panel menu and changing the printhead height may improve the situa-
tion.
(See "Troubleshooting Paper Abrasion and Blurry Images.")
Automatic Adjustment to Straighten Lines and Colors
Automatic Adjustment to Straighten Lines and Colors
If vertical lines in printed documents are warped or colors are out of alignment, execute Head Posi. Adj.. The print-
er will print and read a test pattern, and the Printhead position will be adjusted automatically.
There are two modes for automatic Printhead adjustment: Standard and Simple.
• Standard
Execute if vertical lines in printed material are warped or colors are out of alignment.
Furthermore, if Simple does not improve printing, try Standard.
• Simple
Executes simple adjustment in a short time.
550
Execute this when frequently adjusting the printhead, such as during daily inspection.
•
In the next case, execute Initial adjustmt.
(See "Adjustment When Installing the Printhead.")
•
If adjusting the printhead position has not been performed such as due to an error during initial setup
•
If Rep.P.head Print in the Control Panel menu is set to Off and adjusting the printhead position has
not been performed when replacing the printhead
P.577
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P.550
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P.552
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P.553
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P.556
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iPF840
User's Guide