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...

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...

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...

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,...

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...

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...

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...