HP DesignJet T770 User Manual

Paper type g/m² Length Width Part numbers
HP Self-adhesive Gloss
Polypropylene180 22.9 m (75 ft) 914 mm (36 in) Q8834A
1067 mm (42 in) Q8835A
Table 14-4  Sheet paper
Paper type g/m² Length Width Part numbers
HP Bond and Coated Paper
HP Coated Paper 90 610 mm (24 in) 457 mm (18 in) Q1961A (AEJN)
914 mm (36 in) 610 mm (24 in) Q1962A (AEN)
HP Photographic Paper
HP Premium Plus Photo Gloss 280 483 mm (19 in) 330 mm (13 in) Q5486A
610 mm (24 in) 457 mm (18 in) Q5487A
HP Premium Plus Photo Satin 280 483 mm (19...

NOTE:The included 6 GB memory upgrade applies to the T770 only, and not to the T770 HD.
External hard disk (T1200 series only)
The external hard disk enables you to remove the hard disk for security reasons. It can be plugged
into the printers USB host.
Spindle
With extra spindles, you can change rapidly from one paper type to another.
Jetdirect print server
Jetdirect print servers support extra connectivity and security options beyond those provided in the
standard Gigabit Ethernet interface built into...

15 Troubleshooting paper issues
●The paper cannot be loaded successfully
●
The paper type is not in the driver
●
The printer printed on the wrong paper type
●
An “on hold for paper” message (T1200 series only)
●
The roll paper will not advance
●
The paper has jammed
●
A strip stays on the output tray and generates jams
●
The printer displays out of paper when paper is available
●
Prints do not fall neatly into the basket
●
The sheet stays in the printer when the print has been completed
●
The paper is...

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...

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.
●Ensure that the sheet is aligned with the reference line on the roll cover.
●Do not attempt to straighten the sheet during the...

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 your 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 a photo paper, use the Photo Paper category. For...

●Heavyweight Coated Paper
●Super Heavyweight Coated Paper
For other image quality problems, see 
Troubleshooting print-quality issues on page 147.
The printer printed on the wrong paper type
If the printer prints your job before you were able to load your desired paper, you may have Any
selected for the Paper Type in the printer driver. When Any is selected the printer will print
immediately on whichever paper is loaded. Load your desired paper, see 
Paper handling on page 31,
and select your paper type...

I don’t like jobs being put on hold for paper. Can I prevent it?
Yes, this can be done from the front panel: see Paper mismatch action on page 21.
I set the option “Paper mismatch action” to Print anyway, but some jobs
are still put on hold
If the Show print preview option is selected in the driver or the Embedded Web Server, jobs are put
on hold until you have checked the preview and resumed the job. Check that the Show print preview
option is not checked in the driver, and that there are no pending...

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.
ENWWThe paper has jammed 141
Paper issues
 

4.Lift the blue lever as far up as it will go.
5.Carefully remove any of the jammed paper that you can lift up and out from the top of the printer.
CAUTION:Do not move the paper sideways, as it could damage the printer.
6.Rewind the roll. If the paper is stuck and cannot be rewound further, cut it from the roll.
7.Remove all pieces of paper from the rear of the printer.
142 Chapter 15   Troubleshooting paper issues ENWW
Paper issues