HP DesignJet 70 User Manual

							HP Designjet 70/110plus Printer series—Quick Reference Guide
30 7. Check that the printhead icon on the front panel is no longer flashing. The 
printhead has been replaced successfully.
For more detailed instructions for replacing a printhead, see the topic How do I 
replace printheads? on the HP Designjet Driver and Documentation CD.
How do I replace printheads? (continued)
 
						

							HP Designjet 70/110plus Printer series—Quick Reference Guide
31 If the printheads are not correctly aligned, poor quality printing will result. 
To align printheads, you need to use the HP Designjet System Maintenance utility. 
This is normally installed when you install the software (printer driver) for your 
printer from the HP Designjet Driver and Documentation CD.
For some functions, the HP Designjet System Maintenance utility requires an 
Internet connection, but you do not need this connection to perform printhead   
alignment.
See “Tell me about HP Designjet System Maintenance” on page 46.
To align the printheads:
1. Make sure that you have at least 5 sheets of A4 or Letter paper in the input 
tray.
2. Start the HP Designjet System Maintenance.
3. Select Maintain printheads, then Align printheads.
4. The printer will print a printhead alignment sheet. Check that the sheet printed 
has a tick on it. The tick should be cyan. If this is not the case, repeat the 
process.
How do I align printheads?
 
						

							HP Designjet 70/110plus Printer series—Quick Reference Guide
32
1. Press the OK key (the upper right key) on the printer’s front panel.
If this does not solve the problem…
2. Turn off the printer.
3. Remove all media from the tray. Pull out any paper that is visibly stuck.
4. Lift the top cover and pull out any paper that may be stuck.
Be careful when you lift the cover not to damage or disturb any of the tubes or 
other internal parts of the printer. 
5. If there is a roll of paper at the rear of the printer, remove it from its supports.
6. Remove the rear path carefully by pressing the buttons on each of its sides and 
pulling it straight out. If you don’t pull it straight out, you may damage the 
paper sensor.
Removing the rear path gives access to the inside of the printer from the rear.
Pull out any paper that may be stuck inside or is accessible from the rear.
Replace the rear path and make sure it fits securely.
7. T u r n  o n  t h e  p r i n t e r .
8. We recommend that after clearing a paper jam you align the printheads to 
avoid problems of poor print quality. To align printheads, start HP Designjet 
System Maintenance (see page 31) and select Align printhead.
Rear path
The problem is a paper jam
 
						

							HP Designjet 70/110plus Printer series—Quick Reference Guide
33
If paper from the roll is jammed:
1. Turn off the printer. 
2. Check in all places where the roll could be trapped: 
• Remove the front paper tray. This will allow you to see inside the printer 
through a slot in the front. Release and remove any trapped paper that is 
visibly stuck. 
• Lift the top cover, being careful not to damage or disturb any of the tubes or 
other internal parts of the printer. If there is any paper trapped in the wheels 
inside the printer, release and remove the paper. 
• Unload the roll and remove it from its supports. If you are using the 70 
Printer series, see “How do I unload a roll of paper? (70)” on page 17. If 
you are using the 110plus Printer series, see “How do I unload a roll of 
paper? (110plus Printer series)” on page 21. 
• Remove the rear path by pressing the buttons on each of its sides and 
pulling it straight out. If you don't pull it straight out, you may damage the 
paper sensor. If there is any paper trapped in the rollers inside the printer, 
release and remove the paper. 
3. Once the paper jam has been cleared, replace any parts of the printer (paper 
tray, top cover, roll spindle, rear path) that you have removed/opened, making 
sure they fit securely. 
4. Turn on the printer. 
5. Before reloading the paper roll, you must trim the leading edge of the roll such 
that this edge is perfectly straight and at right-angles to the sides of the roll.
The problem is that a roll of paper is jammed
 
						

							HP Designjet 70/110plus Printer series—Quick Reference Guide
34
If the printer does not take paper from the input tray…
1. Check that you specified the paper source correctly in your print job.
2. Check that there is paper in the tray and that it was loaded correctly. See 
“How do I load paper into the input tray?” on page 6. 
Try removing the paper from the tray and reloading it. 
3. Make sure that there is not too much paper in the tray. You should not try to 
load more than 70 sheets of plain paper, 50 sheets of coated paper, or 20 
sheets of glossy paper in the tray (for more details, see the HP Designjet Driver 
and Documentation CD). 
Note that the upper limit marked in the tray of certain models of printer  is a 
theoretical maximum and may not apply to the paper you are usingCheck that 
the tray is supported by a flat and stable surface.
4. Paper loading failure can be caused by curled or damaged paper. Keep paper 
in its box when not using it to avoid this kind of problem.
The problem is the printer rejects paper from front path or tray
If the printer rejects the paper…
• Check that the paper is correctly placed against the right side of the tray.
• When loading paper through the front path, always use the OK key to load the 
sheet before sending the job from the computer.
• Paper loading failure can be caused by curled or damaged paper. Keep paper 
in its box when not using it to avoid this kind of problem.
• When using the tray, check that the adjusters are set correctly.
The problem is paper not taken from the input tray
 
						

							HP Designjet 70/110plus Printer series—Quick Reference Guide
35 If the printer picks up two or more sheets together…
• Check that the paper was loaded correctly into the tray. See “How do I load 
paper into the input tray?” on page 6. Try removing the paper from the tray 
and reloading it.
• Always fan the paper by its short edge before loading it into the tray.
• Check that the paper is not damaged. Keep paper in its box when not using it.
The problem is the printer takes two or more sheets at once
 
						

							HP Designjet 70/110plus Printer series—Quick Reference Guide
36
The problem is that the printer has stopped
Note that the illustrations below show the 70 Printer series.
If the front panel looks like this and the yellow light 
is flashing:
1. Open both parts of the hinged flap at the right 
of the printer, lifting it right back so that you can 
see the print carriage. Check that all packaging 
material has been removed from around the 
print carriage.
The carriage may move at this point. Wait until 
it has stopped moving.
2. Check that the printhead cover is latched down. 
The printer will not work if the latch is not 
properly engaged.
3. Close the rear part and then the front part of the 
hinged flap. The printer will not work if the flaps 
are not properly closed.
4. If the yellow light has not turned off, see the HP 
Designjet Driver and Documentation CD.
 
						

							HP Designjet 70/110plus Printer series—Quick Reference Guide
37
The problem is that the printer has not received the job
If your printer seems to be ignoring the printing job you have sent to it:
1. Check that the printer is correctly connected to the computer.
If the connection is through a network, print the printer’s configuration pages 
(hold down the Power key while pressing the OK key four times), and check in 
the TCP/IP section that the Status is shown as Ready. Make a note of the 
printer’s IP address and subnet mask, which are in the same section.
• If the IP address is 0.0.0.0 or 192.0.0.192, refer to your printer’s setup 
poster.
• If the Status is Ready, you can use a Web browser to check the network 
connection between printer and computer. Simply type your printer’s IP 
address into your browser, where you would normally type a URL. If you get 
a reply from the printer, then the network connection between the printer 
and the computer is working.
• If the Status is Not Ready, or if the printer does not reply to the Web 
browser, check that the printer’s IP address and subnet mask belong to your 
network.
• If necessary, consult your network administrator.
2. Check that the printer queue is not paused.
3. If you are using Mac OS X, make sure you selected “HP IP Printing” when you 
created your printer, and not “IP Printing”.
 
						

							HP Designjet 70/110plus Printer series—Quick Reference Guide
38 If the quality of your prints degrades…
1. Check whether you need to clean the printer. If this is the case, see the HP 
Designjet Driver and Documentation CD for instructions.
2. See the HP Designjet Driver and Documentation CD for more information about 
other reasons for a decline in print quality.
To obtain the best results from your printer, it is important that you use only HP-
approved inks and paper.
The problem is poor print quality
 
						

							HP Designjet 70/110plus Printer series—Quick Reference Guide
39 If there is a hardware error with your printer, this icon flashes on the front panel:
The precise error is indicated by a pattern of squares displayed in the ink cartridge 
icons on the front panel.
Pattern Explanation Solution
Pa c ka g i n g  n o t  p ro p e rly  
removed, or printhead 
carriage latch not properly 
closed, or cutter badly 
assembled
Error code: 86:11Turn off the printer. Make sure that all 
packaging is removed and that the 
printhead carriage latch is properly 
closed. Remove and reinstall the cutter 
according to the instructions in the 
User’s Guide.
Rear path not correctly 
installed
Error code: 35:01Remove the rear path, then reinstall it 
(see page 32). You may have to press 
the OK key to clear the error.
General printer system failure
Error code: 56:13Unplug power cable, wait a few 
seconds, plug in power cable and turn 
printer on. If the problem persists, call 
HP support.
General I/O failure
Error code: 65:04Unplug power cable, wait a few 
seconds. Connect alternative I/O if 
available, plug in power cable, turn 
printer on
The problem is a flashing tool icon in the front panel