Canon Imageprograf Ipf825 User Guide
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Adjustments for Better Print Quality Adjusting the Printhead 676Adjusting the feed amount 684Adjustments for Better Print Quality > iPF825 8 675
Adjusting the Printhead Adjusting the Printhead ................................................................................................................................... 676 Automatic Straightening of Lines and Colors (Auto Head Adj.) ..................................................................676 Manual Straightening of Lines and Colors (Manual Head Adj) ...................................................................678 Adjusting Line Misalignment (Head Inc. Adj.) .................................................................................................. 680 Troubleshooting Paper Abrasion and Blurry Images (Head Height) ...............................................................683Adjusting 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 to check for printhead nozzle clogging. For instructions, see "Checking for Nozzle Clogging ." →P.813 • Printed vertical lines are warped or colors are out of alignment Use Auto Head Adj. or Manual Head Adj to adjust the printhead position. Normally, use Auto Head Adj.. However, when using special paper or if printing is not improved after executing Advanced Adj. in Auto Head Adj., try Manual Head Adj. For adjustment instructions, Automatic Straightening of Lines and Colors (Auto Head Adj.) →P.676 or see "Manual Straightening of Lines and Colors (Manual Head Adj) ." →P.678 • Printed lines are misaligned Execute Head Inc. Adj. to adjust the angle of inclination of the printhead. Even slight misalignment can be corrected. For adjustment instructions, see "Adjusting Line Misalignment (Head Inc. Adj.) ." →P.680 • Paper rubs against the printhead, or image edges are blurred Executing Head Height to adjust the printhead height may improve printing results. For adjustment instructions, see "Troubleshooting Paper Abrasion and Blurry Images (Head Height) ." →P.683 Automatic Straightening of Lines and Colors (Auto Head Adj.) If printed vertical lines are warped or colors are out of alignment, adjust the Printhead alignment. Use Auto Head Adj. to have the printer print and read a test pattern for automatic adjustment of the printhead. Auto Head Adj. offers two modes, Standard Adj. and Advanced Adj.. Standard Adj. will fix most slight image distortion or color misalignment, but if not, try Advanced Adj..Adjustments for Better Print Quality > Adjusting the Printhead > Adjusting the Printhead iPF8258 676
Note • If advanced adjustment does not improve printing results, or if you are using special paper, try manual ad- justment. For instructions on manual adjustment, see "Manual Straightening of Lines and Colors (Manual Head Adj)." →P.678 • Use Standard Adj. if you have switched to another type of paper or if you want the boundaries between colors to appear as attractive as possible. • Use Advanced Adj. to fine-tune the space between nozzles or colors if you have switched the printhead or if you want printed documents to appear as vivid as possible. We recommend using Advanced Adj. for print- ing at a higher level of image quality. • Always make sure the loaded paper matches the type of paper specified on the printer. Adjustment cannot be completed correctly unless the loaded paper matches the settings. • We recommend using the type of paper you use most often for adjustment. • This function is not available with CAD Tracing Paper, CAD Translucent Matte Film, or CAD Clear Film. If adjustment is not possible as expected using highly transparent film or similar media, try another type of pa- per, or try adjust the Printhead alignment manually. (See "Manual Straightening of Lines and Colors (Manual Head Adj) .") →P.678 Paper to Prepare Rolls An unused roll at least 10 inches wide Sheets Standard Adj. : One sheet of unused paper of at least A4/Letter size Advanced Adj. : Five sheets of unused paper of at least A4/Letter size (or one sheet when using A2 or larger, or two sheets when using A3 loaded lengthwise) Execute Auto Head Adj. as follows. 1. Load paper. •Attaching the Roll Holder to Rolls →P.629 • Loading Rolls in the Printer →P.634 • Loading Sheets in the Printer →P.664 2. Press the Menu button to display MAIN MENU.3. Press ▲ or ▼ to select Adjust Printer, and then press the ▶ button. 4. Press ▲ or ▼ to select Auto Head Adj. , and then press the ▶ button. 5. Press ▲ or ▼ to select Standard Adj. or Advanced Adj. , and then press the ▶ button. Adjustments for Better Print Quality > Adjusting the Printhead > iPF825 Automatic Straightening of Lines and Colors (Auto Head Adj.) 8 677
6. Press ▲ or ▼ to select Yes, and then press the OK button. A test pattern is printed for printhead adjustment. Adjustment is now finished if you have printed on a roll or a sheet of A2 size or larger. 7. If you are printing on sheets smaller than A2 size for Advanced Adj., a confirmation message is displayed asking you whether to continue printing. Press the OK button and follow the instructions displayed.Manual Straightening of Lines and Colors (Manual Head Adj) If printed vertical lines are warped or colors are out of alignment, adjust the Printhead alignment. With Manual Head Adj, you can manually adjust the Printhead alignment by printing and reading a test pattern. You can adjust the Printhead alignment automatically or manually. Normally, choose automatic adjustment. If advanced adjustment does not improve printing results, or if you are using special paper, try manual adjustment. For instructions on straightening lines and colors automatically, see "Automatic Straightening of Lines and Colors (Auto Head Adj.) ."→P.676 Note • If Manual Head Adj is not available although displayed in the menu, choose Advanced Adj. in Auto Head Adj. . Manual Head Adj is available in the menu after you try Advanced Adj. once. • Always make sure the loaded paper matches the type of paper specified on the printer. Adjustment cannot be completed correctly unless the loaded paper matches the settings. • We recommend using the type of paper you use most often for adjustment. Paper to Prepare Rolls An unused roll at least 10 inches wide Sheets One sheet of unused paper of at least A4/Letter size Execute Manual Head Adj as follows. 1. Load paper. •Attaching the Roll Holder to Rolls →P.629 • Loading Rolls in the Printer →P.634 • Loading Sheets in the Printer →P.664 Adjustments for Better Print Quality > Adjusting the Printhead > Manual Straightening of Lines and Colors (Manual Head Adj) iPF8258 678
2. Press the Menu button to display MAIN MENU.3. Press ▲ or ▼ to select Adjust Printer, and then press the ▶ button. 4. Press ▲ or ▼ to select Manual Head Adj , and then press the ▶ button. 5. Press ▲ or ▼ to select Yes, and then press the OK button. A test pattern is printed for printhead adjustment. 6. Press ▲ or ▼ to select D, and then press the ▶ button. 7. Press ▲ or ▼ to select D-1, and then press the ▶ button. 8. Examine test pattern D-1 for printhead adjustment and determine the number of the pattern with straight lines. Note • If lines seem straightest in two patterns but you cannot decide which one is better, choose an inter- mediate value. For example, choose 11 if you cannot decide whether pattern 10 or 12 is better. 9. Press ▲ or ▼ to select the pattern number, and then press the OK button. 10. Repeat steps 7 and 9 to specify the adjustment value for D-2 to D-5 and D-7 to D-11. 11. Press the ◀ button. 12. Press ▲ or ▼ to select Register Setting, and then press the ▶ button. Adjustments for Better Print Quality > Adjusting the Printhead > iPF825 Manual Straightening of Lines and Colors (Manual Head Adj) 8 679
13. Press ▲ or ▼ to select Yes, and then press the OK button. The adjustment value is now registered, and adjustment is complete. Adjusting Line Misalignment (Head Inc. Adj.) If printed lines are misaligned, try adjusting the angle of the Printhead. Even slight misalignment can be corrected. Adjust the Printhead orientation by printing and reading a test pattern. Paper to Prepare Rolls An unused roll at least 10 inches wide Sheets One sheet of unused paper of at least A4/Letter size Execute Head Inc. Adj. as follows. 1. Load the paper. •Attaching the Roll Holder to Rolls →P.629 • Loading Rolls in the Printer →P.634 • Loading Sheets in the Printer →P.664 Note • When loading paper, specify the type of paper correctly. Using paper that you have not specified on the printer may cause feeding problems and affect the printing quality. • We recommend loading a type of paper that you use often. 2. Press the Menu button to display MAIN MENU.3. Press ▲ or ▼ to select Adjust Printer, and then press the ▶ button. 4. Press ▲ or ▼ to select Head Inc. Adj. , and then press the ▶ button. 5. Press ▲ or ▼ to select Yes, and then press the OK button. After the Printhead is moved, a message is displayed requesting you to open the Top Cover. Adjustments for Better Print Quality > Adjusting the Printhead > Adjusting Line Misalignment (Head Inc. Adj.) iPF8258 680
6. Open the Top Cover. 7. Align the Angle Adjustment Lever with the red square and close the Top Cover. Adjustments for Better Print Quality > Adjusting the Printhead > iPF825 Adjusting Line Misalignment (Head Inc. Adj.) 8 681
A test pattern is printed for adjustment. Important • Do not touch the Linear Scale (a), Carriage Shaft (b), or Ink Tube Stabilizer (c). Touching these parts may damage them. 8. Examine the test pattern for adjustment. Determine the straightest set of lines. 9. Open the Top Cover and move the Angle Adjustment Lever to match the number (or the square) of the straightest set of lines. If no single set of lines is perfectly straight, move the Angle Adjustment Lever to a position between the numbers (or between the number and the square) of the two sets of lines that are least misaligned. Adjustments for Better Print Quality > Adjusting the Printhead > Adjusting Line Misalignment (Head Inc. Adj.) iPF8258 682
10. Close the Top Cover. The Printhead is now straight, and adjustment is complete. Troubleshooting Paper Abrasion and Blurry Images (Head Height) If paper rubs against the printer or the edge is wrinkled from rubbing, adjusting the Printhead height may improve results. If image edges are blurred, it may help to lower the Printhead. 1. Press the Menu button to display MAIN MENU. 2. Press ▲ or ▼ to select Paper Details, and then press the ▶ button. 3. Press ▲ or ▼ to select the type of paper, and then press the ▶ button. 4. Press ▲ or ▼ to select Head Height , and then press the ▶ button. 5. Press ▲ or ▼ to select the Printhead height, and then press the OK button. Adjustments for Better Print Quality > Adjusting the Printhead > iPF825 Troubleshooting Paper Abrasion and Blurry Images (Head Height) 8 683
Adjusting the feed amount Adjusting the Feed Amount ............................................................................................................................. 684 Selecting a Feed Amount Adjustment Method (Feed Priority) ....................................................................684 Auto Band Adjustment (Auto Band Adj.) ..................................................................................................... 685 Manual Band Adjustment (Manual Band Adj) ............................................................................................. 686 Banding Adjustment During Printing (Fine Band Adj.) ................................................................................688 Adjusting Line Length (Adjust Length) ........................................................................................................ 689 Adjusting the Vacuum Strength (VacuumStrngth) ........................................................................................... 691Adjusting the Feed Amount If printed documents are affected by the following problems, try adjusting the feed amount. •Banding in different colors • Line length is not accurate in the direction paper is fed To adjust the feed amount, do the following, in this order. 1. Depending on the issue, change the Feed Priority setting for the particular type of paper. (See "Selecting a Feed Amount Adjustment Method (Feed Priority) .") →P.684 2. Based on the Feed Priority setting, use Auto Band Adj. , Manual Band Adj , or Adjust Length . (See " Auto Band Adjustment (Auto Band Adj.).") →P.685 (See " Manual Band Adjustment (Manual Band Adj).") →P.686 (See "Adjusting Line Length (Adjust Length) .") →P.689 3. If additional fine-tuning is necessary after Auto Band Adj. or Manual Band Adj , use Fine Band Adj. in the Menu Durng Prtng . (See "Banding Adjustment During Printing (Fine Band Adj.) .") →P.688 Selecting a Feed Amount Adjustment Method (Feed Priority) Methods of adjusting the amount paper is fed are set for each type of paper, in the Feed Priority setting. Adjust the Feed Priority setting to suit your particular printing application. • Band Joint : Adjusts the feed amount to reduce banding across the sheet in printed documents. The settings of Auto Band Adj. or Manual Band Adj are applied. If you have executed Fine Band Adj., in addition to the settings of Auto Band Adj. or Manual Band Adj, the settings of Fine Band Adj. are also applied. • Print Length : Adjusts the feed amount for better accuracy of lines in printed documents. The settings of A:High or B:Standard/Draft in the Adjust Length menu are applied. • Automatic : Band Joint or Print Length is selected, depending on Print Priority as selected in the printer driver at the time of printing. Image or Office Document : Band Joint is selected. Line Drawing/Text : Print Length is selected. Adjustments for Better Print Quality > Adjusting the feed amount > Adjusting the Feed Amount iPF8258 684