HP (Hewlett-Packard) 1040 Manuale Utente

Care and maintenance  68

Troubleshooting

Print quality problems

Paper feeding problems

Light or blurred characters.

Check ink level as described in 

on page 55. To 

install a new print cartridge, see 

page 56. 
Make sure the print cartridge is installed correctly. To clean the 
print cartridge, see 

Smudged or dark characters.

Make sure the paper is straight and unwrinkled. Let ink dry 
before handling the paper. To clean the print cartridge, see 

Characters with white lines.

If

 Ink Low. Install new ink cartridge 

is displayed, 

install a new print cartridge as described in 

Remove and reinstall the print cartridge. 
Clean the print cartridge (see 

Improperly formed or misaligned 
characters.

Clean the print cartridge (see 

Abnormal black horizontal lines

Clean the cartridge carrier (see 

Paper is jammed during printing.

Clear paper jam as described in 

Paper sticks together.

Make sure you have fewer than 50 sheets in the paper tray. 

Humid conditions may cause some paper to stick together. 
Take the paper out and fan the pages and replace.

Paper fails to feed.

Remove any obstructions inside the printer.

Multiple sheets of paper feed.

When loading paper, do not force the paper down into the 
printer. If multiple sheets have caused a paper jam, clear the 
paper jam. (see 

Paper skews or buckles in the paper 
tray.

The paper tray can hold up to 50 sheets. Make sure the paper 
guides do not cause the paper to bow. When loading paper, 
do not force it down into the machine.