HP Designjet T1120 1118 mm User Manual

							The paper cannot be loaded successfully
●Ensure no paper is loaded.
●Ensure the paper is far enough inside the printer, you should feel the printer grab the paper.
●Do not attempt to straighten the paper during the aligning process, unless instructed to do so by
the front-panel display. The printer automatically attempts to straighten the paper.
●The paper may be crumpled, or warped, or may have irregular edges.
General unsuccessful roll load issues
●If the paper does not load, the leading edge of the paper may not be straight or clean and needs
to be trimmed. Remove the initial 2 cm (1 in) from the roll and try again. This may be necessary
even with a new roll of paper.
●Ensure the roll ends are tight against the spindle ends.
●Check that the spindle is correctly inserted.
●Check that the paper is correctly loaded on the spindle, and that it loads over the roll towards you.
●Check that all roll end plugs have been removed.
●Check that the paper is wound tightly on the roll.
●Do not touch the roll or paper at during the alignment process.
Unsuccessful roll load with 24-inch printer
On a 24-inch printer, if the paper has not been inserted straight, the front panel displays the following
instructions.
1.When prompted by the front-panel display, lift the blue lever on the left. The printer attempts to
straighten the roll.
2.When prompted by the front-panel display, lower the blue lever. The printer checks the alignment.
If the roll is aligned, the printer measures the width and you are now ready to print.
If the roll is still not aligned, the front panel displays an error and instructions.
3.When prompted by the front-panel display, lift the blue lever on the left.
4.Rewind the roll from the end of the spindle until the edge is on the blue line.
5.Press OK, on the front panel.
6.When prompted by the front-panel display, lower the lever. The printer checks the alignment. If the
roll is aligned, the printer measures the width and you are now ready to print.
If the roll is still not aligned, the front panel displays an error and instructions to start again at step
three.
If you would like to start the load process again, cancel the process on the front panel and rewind
the roll from the end of the spindle until the edge is removed from the printer.
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							Unsuccessful roll load with 44-inch printer
On a 44-inch printer, if the paper has not been inserted straight, the front panel displays the following
instructions.
1.When prompted by the front-panel display, lift the blue lever on the left. The printer attempts to
straighten the roll.
2.When prompted by the front-panel display, lower the blue lever. The printer checks the alignment.
If the roll is aligned, the printer measures the width and you are now ready to print.
If the roll is still not aligned, the front panel displays an error and instructions to start again.
If you would like to start the load process again, cancel the process on the front panel and rewind
the roll from the end of the spindle until the edge is removed from the printer.
NOTE:If the roll has become loose around the core, the printer cannot load the paper.
Unsuccessful sheet load
●Guide the sheet, especially thick papers, when the printer initially feeds the sheet.
●Do not attempt to straighten the sheet during the loading process, unless instructed to by the front-
panel display. The printer automatically attempts to straighten the sheet.
●Do not use hand-cut sheets, which may be of irregular shapes. Use only purchased sheets.
If the sheet is not caught by the printer, the front-panel display asks you to push paper further into the
printer, and tries to feed the paper again.
If the sheet is caught by the printer but is not inserted straight, the front panel displays the following
instructions.
1.When prompted by the front-panel display, lift the blue lever on the left.
2.Adjust the sheet to align with the front and right side blue lines.
3.Once the sheet is aligned, press OK on the front panel.
4.When prompted by the front-panel display, lower the blue lever. The printer checks the alignment.
If the sheet is aligned, the printer measures the sheet and feed it out the back into the roll feed.
You are now ready to print.
If the sheet is still not aligned, the front panel displays an error and instructions to start again.
If you would like to start the load process again, cancel the process on the front panel and the
printer ejects the sheet out the front.
Paper loading error messages
Here is a list of front-panel display messages related to paper loading, with the suggested corrective
action.
front-panel display messageSuggested action
Paper incorrectly loadedThe paper has not been loaded correctly; the edge was not aligned with the load
guide. Lift the blue lever, remove paper and lower lever.
Paper not foundDuring the paper load process the printer did not detect any paper. Ensure the paper
is inserted fully and is not transparent.
Paper loaded with too much skew During the paper load process the printer detected that the paper had too much
skew. Follow the instructions on the front-panel display.
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							front-panel display messageSuggested action
Paper too smallDuring the load process the printer detected that the paper is too narrow or too short
to be loaded in the printer. Press the Cancel key to stop the load process. See
Functional specifications on page 190.
Paper too bigDuring the load process the printer has detected that the paper is either too wide or
too long (sheet only) to be loaded correctly. Press the Cancel key to stop the load
process. See 
Functional specifications on page 190.
Paper loose around coreThe end of the roll has become loose around the core. Tighten the paper to the core
or insert a new roll.
Lever lifted During the load process the blue lever was lifted. This prevents the printer from
loading the paper. Follow the instructions on the front-panel display.
The paper type is not in the driver
To work with a paper not in the driver, you can use your paper as one of the profiles already in the driver,
however, you must identify whether your paper is transparent or translucent, glossy, matte or HP
Banners with Tyvek®.
NOTE:For glossy paper, it is important to use a glossy paper type, as matte black ink does not print
well on glossy paper.
Transparent or translucent paper
If your paper is a transparent film (for example, a transparency) select paper type Film > Transparent/
Clear film.
If you paper is a translucent paper (for example, technical paper) select paper type Technical paper
> Natural Tracing Paper, Vellum or Translucent bond.
Glossy paper
If your paper is glossy, identify whether it is a photo paper or a proofing paper. If you are not sure consider
it photo paper.
If your paper is a photo paper, use the Photo Paper category. For glossy or high-gloss paper select
paper type Photo Gloss Paper. For Semi-gloss, Satin, Pearl or Luster finishes, select paper type Semi-
gloss/Satin Paper.
To increase gamut on photo paper select paper type HP Premium Instant-dry Photo Gloss or HP
Premium Instant-dry Photo Satin, depending on the finish.
If your paper is a proofing paper, use the Proofing Paper category. For glossy or high-gloss paper
select paper type Proofing Gloss. Otherwise, for Semi-gloss, Pearl or Luster finishes, select paper
type Proofing Semi-gloss/Satin.
To increase gamut on proofing paper select paper type HP Professional High-gloss Contract
Proofing Paper or HP Professional Semi-gloss Contract Proofing Paper, depending on the finish.
If you are printing on a glossy banner (for example, HP Instant-Dry Indoor Banner, Gloss) select paper
type Photo Gloss Paper.
Matte Paper
Your paper type selection for matte paper depends on the paper’s ink absorption capacity. To select a
paper category and type, first identify if your paper is general purpose or photographic. Then select the
recommended paper types.
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							General purpose paper
●For thin papers (< 90 g/m2) uncoated papers (for example plain paper or bright white paper) select
paper type Bond and Coated > Plain Paper.
●For light coated papers ( Coated Paper.
●For heavyweight coated papers ( Heavyweight
Coated Paper.
●For cockle-free very thick coated papers (> 200 g/m
2), select paper type Bond and Coated >
Super Heavyweight Coated Paper.
CAUTION:Only use this option if you are sure your paper does not wrinkle when printed.
Photographic paper
For photographic paper, select paper type Photo Paper > Photo Matte Paper.
HP Banners with Tyvek®
For HP Banners with Tyvek®, select paper type Photo Paper > Photo Gloss Paper.
Black ink is easily removed when touched
This happens when your paper is incompatible with matte black ink. To use non-matte black ink, select
paper type Photo Paper > Photo Gloss Paper.
After printing, the paper has wrinkles or there is too much ink
This happens when too much ink is used. To use less ink, select a thinner category. Matte paper
categories from thinnest to thickest are:
●Plain Paper
●Coated Paper
●Heavyweight Coated Paper
●Super Heavyweight Coated Paper
For other image quality problems, see 
Troubleshooting print-quality issues on page 151.
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							The paper has jammed
When a paper jam occurs, you normally see the Possible paper jam message in the front-panel display.
1.Power off the printer at the front panel and also switch it off at the rear.
2.Open the window.
3.Try to move the printhead carriage out of the way.
4.Lift the blue lever as far up as it will go.
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							5.Carefully remove any of the jammed paper that you can lift up and out from the top of the printer.
6.Standing behind the printer, rewind the roll or pull the cut sheet from the printer. If you cannot see
the paper, return to the front of the printer and remove it from the output tray.
CAUTION:Do not move the paper sideways, as it could damage the printer.
7.Carefully remove all small pieces of paper.
8.Lower the blue lever.
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							9.Close window.
10.Switch on the printer.
11.Reload the roll, or load a new sheet see Paper handling on page 33.
NOTE:If you find that there is still some paper causing an obstruction within the printer, restart the
procedure and carefully remove all pieces of paper.
The printer displays out of paper when paper is available
If the roll has become loose from its core, it will not feed correctly and the printer will not load the paper.
If possible, tighten the paper to its core or load a new roll.
Prints do not fall nicely into the basket
●Ensure the basket is correctly installed.
●Ensure the basket is open.
●Ensure the basket not full.
●Paper often tends to curl near the end of a roll, which can cause output problems. Load a new roll,
or remove prints manually as they are completed.
The sheet stays in the printer when the print has been
completed
The printer holds the paper to allow the print to dry after printing, see Change the drying time
on page 52. If the paper is only partially ejected after the drying time, gently pull the sheet out of the
printer. If the automatic cutter is disabled, use the Form feed and cut key 
 on the front panel, see
Feed and cut the paper on page 53.
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							The paper is cut when the print has been completed
By default the printer cuts the paper after the drying time has been completed, see Change the drying
time on page 52. You can disable the cutter, see Turn the automatic cutter on and off on page 53.
The cutter does not cut well
By default the printer is set to automatically cut the paper after the drying time has been completed.
If the cutter is turned on but not cutting correctly, check that the cutter rail is clean and clear of any
obstacles.
If the cutter is turned off, the  Form feed and cut key 
 only advances the paper. Use this key to move
the print far enough out of the front of the printer, until it is convenient to manually cut with a straight
edge or scissors.
Th e roll is loose on the spindle
The roll may need to be replaced or reloaded. If your roll has a three-inch cardboard core, ensure the
core adaptors supplied with the printer have been installed, see  
A strip stays on the output tray and generates jams
If a small piece of paper (200 mm or smaller) has been cut, such as before (if new roll) and after a full-
bleed print or after the Form feed and cut key 
 has been pressed, the cut strip remains in the output
tray. Only when the printer is not working, reach in the tray and remove the strip.
Recalibrate the paper advance
Accurate paper advance is important to image quality because it is part of controlling the proper
placement of dots on the paper. If the paper is not advanced the proper distance between printhead
passes, light or dark bands appear in the print and image grain may increase.
The printer is calibrated to advance correctly with all the papers appearing in the front panel. When you
select the type of loaded paper, the printer adjusts the rate at which to advance the paper while printing.
However, if you are not satisfied with the default calibration of your paper, you may need to recalibrate
the rate at which the paper advances. See 
Troubleshooting print-quality issues on page 151 for steps
to determine if paper advance calibration will solve your issue.
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							You can check the paper advance calibration status of the currently loaded paper at any time by pressing
the View loaded paper key 
 on the front panel. The status may be one of the following.
●DEFAULT: This status appears when loading any paper that has not been calibrated. HP papers
in the Front Panel have been optimized by default and unless you experience image quality
problems in your printed image such as banding or graininess it is not recommended to recalibrate
the paper advance.
●OK: This status indicates that the loaded paper has been calibrated before. However you may need
to repeat the calibration if you experience image quality problems such as banding or graininess
in your printed image.
NOTE:Whenever you update the printer’s firmware, the paper advance calibration values are
reset to factory default, see 
Update the firmware on page 131.
CAUTION:Transparent papers and films must be calibrated using Image Quality Maintenance menu
icon 
, then Paper advance calibration > Adjust paper advance, from step four in the Recalibrating
the paper advance procedure.
Recalibrating the paper advance procedure
1.Press the Menu key to return to the main menu and select the Image Quality Maintenance menu
icon 
, then Calibrate paper advance. The printer automatically recalibrates the paper advance
and prints a paper advance calibration image.
2.Wait until the front panel displays the status screen and re-print your print.
NOTE:The recalibration procedure takes approximately three minutes. Do not worry about the
paper advance calibration image. The front-panel display shows any errors in the process.
If you are satisfied with your print continue using this calibration for your paper type. If you see
improvement in your print, continue with step three. If you are dissatisfied with the recalibration,
return to the default calibration, see 
Return to default calibration on page 150.
3.If you would like to fine-tune the calibration or are using a transparent paper, press the Menu key
to return to the main menu and select the Image Quality Maintenance menu icon 
, then Paper
advance calibration > Adjust paper advance.
4.Select the percentage of change from -100% to 100%. To correct light banding, decrease the
percentage. To correct dark banding, increase the percentage.
5.Press the OK key on the front panel, to save the value.
6.Wait until the front panel displays the status screen and re-print your print.
Return to default calibration
Returning to the default calibration sets all the corrections made by the paper advance calibration to
zero. To return to the default paper advance calibration value, you must reset the calibration.
1.Press the Menu key to return to the main menu and select the Image Quality Maintenance menu
icon 
, then Paper advance calibration > Reset paper advance
.
2.Wait until the front panel displays the operation has completed successfully before pressing the
back key to return to the main menu.
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							15 Troubleshooting print-quality issues
●General advice
●
Print quality troubleshooting wizard
●
Horizontal lines across the image (banding)
●
Lines are too thick, too thin or missing
●
Lines appear stepped or jagged
●
Lines print double or in the wrong colors
●
Lines are discontinuous
●
Lines are blurred
●
Line lengths are inaccurate
●
The whole image is blurry or grainy
●
The paper is not flat
●
The print is scuffed or scratched
●
Ink marks on the paper
●
Black ink comes off when you touch the print
●
Edges of objects are stepped or not sharp
●
Edges of objects are darker than expected
●
Horizontal lines at the end of a cut sheet print
●
Vertical lines of different colors
●
White spots on the print
●
Colors are inaccurate
●
Colors are fading
●
The image is incomplete (clipped at the bottom)
●
The image is clipped
●
Some objects are missing from the printed image
●
A PDF file is clipped or objects are missing
●
The Image Diagnostics Print
●
If you still have a problem
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Print-quality issues