HP Deskjet 935c Printer - Damage Resulting from Refilling the Print Cartridges

33

4

Getting Help When Things Go Wrong

Troubleshooting Tips

It’s frustrating when things go wrong, but the following pages contain tips that can
help you determine what the problem is and how to fix it.

Be sure cable connections are secure. Make sure that you are using the right cable
for your operating system. Check if your question is similar to those listed below
and then follow the instructions found in that section:

The printer software won’t install, what’s wrong? See pages 33–35.

Why won’t it print? See

pages 36–39.

What do the flashing lights mean? See page 40.

Is there a problem with your printout? See pages 41–44.

The printer software won’t install, what’s wrong?

What is the problem?

Possible cause

To solve the problem…

I inserted a CD, but the
computer couldn’t read it.

• The CD wasn’t properly

inserted.

OR
• The CD player may be

damaged.

OR
• The CD may be damaged.

1

Reinsert the CD and try again. If this
doesn’t solve your problem…

2

Try inserting a CD that you know works.
If that CD doesn’t work, you may need to
replace your CD player.

3

If other CD’s work but the printer software
CD doesn’t, you may have a damaged CD.
You can download the printer software
from an HP web site (see page 45 for web
site addresses).

4

If you don’t have Web access, contact
HP Customer Care. See page 47, to locate
the phone number nearest you.

34

Getting Help When Things Go Wrong

4

The software did not install
correctly.

• There may be a conflict with

your virus protection
program.

OR
• There may be a conflict with

another software program.

OR
• Your printer software didn’t

install properly.

1

Uninstall your printer software.

For Windows 95, 98, or NT 4.0

a

Make sure the printer software CD is
inserted into the CD-ROM drive.

b

Select

Start

Run

.

c

Click

Browse

, then go to the CD icon.

d

Click

Open

, then click

OK

.

e

When the opening screen for the
software installation appears, select

Remove HP DeskJet 930C Series
software

.

If you are running Windows 3.1x:

a

In the Program Manager,
select

File

Run

.

b

Type the letter of the computer’s
CD-ROM drive, followed by

setup.exe

(for example, if the install CD is in drive
D, type

D:\setup.exe

), then click

OK

.

c

When the opening screen for the printer
software installation screen appears,
select

Remove HP DeskJet 930C

Series software

.

2

Close any virus protection programs that
are active. To close (exit) the program,
choose either Step a or b:

a

Right-click on the virus protection
program icon and select

Disable

.

b

Click the

X

in the upper right corner of

the program’s operating window.

3

Exit all of your software programs.
(See 2b above.)

4

Reinstall the printer software. See the
“Install Printer Software” step on the Quick
Start Poster or see page 49 in this User’s
Guide.

If you are still having problems with the
software installation, call an HP authorized
dealer or HP Customer Care. For the phone
number of the HP Customer Care Center
nearest you, see page 47.

The printer software won’t install, what’s wrong? continued

What is the problem?

Possible cause

To solve the problem…

35

Getting Help When Things Go Wrong

4

When I connect a

USB cable between the
printer and my computer,
an “Unknown device”
message appears.

• Static electricity has built up

in the cable between your
computer and printer.

OR
• You may have a defective

USB cable.

1

Disconnect the USB cable from your
printer.

2

Unplug the printer from its power cable.

3

Wait approximately 30 seconds.

4

Plug the power back into the printer.

5

Plug the USB cable back into the printer.

6

If “Unknown device” continues to appear in
the “New hardware found” dialog, replace
the USB cable or use a parallel cable.

When I connect a

USB cable between the
printer and my computer,
the “New Hardware Wizard”
message did not appear.

You may not be using
Windows 98.

Make sure Windows 98 is running and your
computer is connected using a USB cable. If
you do not have Windows 98, you need to use
a parallel cable.

You may not have USB
enabled.

1

In Windows 98, click

Start

Settings

Control Panel

.

2

Double-click the

System

icon.

3

Click the

Device Manager

tab.

4

Click the plus (

+

) icon next to the

Universal Serial Bus Controller option. If
you see a USB host controller and a USB
root hub listed, USB is probably enabled. If
you do not see these devices listed, refer to
your computer’s documentation or contact
the manufacturer for more information on
enabling and setting up USB.

5

If you cannot enable USB, you can always
use a parallel cable to connect your printer
to your computer.

Your USB cable may not be
connected properly.

1

Disconnect and then reconnect the USB
cable from your printer.

2

Make sure that it is securely attached.

The printer software won’t install, what’s wrong? continued

What is the problem?

Possible cause

To solve the problem…

36

Getting Help When Things Go Wrong

4

Why won’t it print?

What is the problem?

Possible cause

To solve the problem…

No page came out
of the printer.

Power may be off or there
may be a loose connection.

1

Make sure the power is on.

2

Make sure that all cable connections
are secure.

You may not have any paper
in the IN tray.

Double-check that the media is placed in the
IN tray correctly.

The printer’s top cover may be
open.

Close the printer’s top cover.

A problem may exist with one
of the print cartridges.

If the Print Cartridge Status Light is
blinking, lift the printer’s cover, check the Print
Cartridge Status. Verify that the print
cartridges are installed properly. See page 27.

The printer may be slow.

If the Power Light is blinking, the printer is
in the process of printing. Be patient.

The printer is waiting for you
to press the Resume Button .

If the Resume Light is flashing, press the
Resume Button .

There may be a paper jam.

1

Pull the paper out of either the IN tray or
the OUT tray.

2

Press the Resume Button on the front of
the printer.

3

If you were printing labels, make sure a
label did not become unglued from the
label sheet while going through the printer.

4

If the paper jam has cleared, print your
document again.

5

If the paper jam hasn’t cleared, open the
Rear Access Door by turning the knob
(counter-clockwise) and removing the
door.

6

Pull the jammed paper out of the printer,
then replace the Rear Access Door.

The Fold-Up tray may not be
down.

1

Lower the Fold-Up tray.

2

Slide out both of the paper guides and pull
out the IN tray.

3

Load paper and print your document
again.

The Rear Access Door may be
missing.

1

Insert the Rear Access Door.

2

Print your document again.

37

Getting Help When Things Go Wrong

4

A blank page came
out of the printer.

You may be out of ink.

1

Lift the printer cover and check the Print
Cartridge status icons to make sure you are
not out of ink. See “Print Cartridge Status”
on page 25.

2

If you are out of ink, replace the print
cartridge. See “Replacing Print Cartridges”
on page 27.

3

Print your document again.

You may have forgotten to
remove the vinyl tape from
the print cartridge.

Make sure you have removed the protective
piece of vinyl tape on each of the print
cartridges. See “Replacing Print Cartridges”
on page 27.

You may be trying to print
a fax.

1

Save the fax in a graphic format, such as
TIFF.

2

Place it in a word processing document and
print it from there.

Why won’t it print? continued

What is the problem?

Possible cause

To solve the problem…

38

Getting Help When Things Go Wrong

4

I have a USB cable,

and when I try to print I get
a message saying “There
was an error writing to
LPT1.”

You may not have plugged
your USB cable in before
installing the software.

1

Disconnect the USB cable from your
printer.

2

Insert the printer software CD (or Disk 1 if
you have diskettes) into your computer.

3

Click

Start

Run

.

4

Browse the CD, select

Setup

, then click

Open

.

5

The setup.exe file will appear in the dialog
box. Click

OK

.

6

Select the

Remove HP DeskJet 930C

Series software

option to remove the

software.

7

Connect the USB cable to your printer
again. The USB installation screen should
appear again.

8

Repeat the “Install USB software” step. See
your Quick Start Poster or page 50 in this
User’s Guide.

My printer is

connected with a USB cable
through another USB
device or a hub and when I
try to print I get a message
saying “There was an error
writing to <name of USB
port>.”

Your printer may not be
getting good data from the
other device or hub.

Connect the printer directly to the USB port
on the computer.

Why won’t it print? continued

What is the problem?

Possible cause

To solve the problem…

39

Getting Help When Things Go Wrong

4

The printer is really slow.

Your computer may have less
than minimum system
requirements.

1

Check the amount of RAM and processor
speed in your computer. See

“System

Requirements” on page 5.

2

Free up some space on your hard drive.
Having less than 100MB of free space on
your computer’s hard drive can mean
longer processing times.

Too many software programs
may be running at the same
time.

Close all unnessary software programs.

You may be using outdated
printer software.

Check the printer driver you are using. Be sure
to check HP’s web site for the most recent
software updates (see page 45 for web site
addresses).

You may be printing a
complex document
containing graphics or
photographs.

Be patient.

You may have chosen 2400
dpi by disabling PhotoREt.

1

If you meant to disable PhotoREt, be
patient.

2

If you didn’t mean to disable PhotoREt, go
to the

Setup

tab and click

PhotoREt

. See

“Setup Tab” on page 6.

You may be using a

USB cable and other USB
devices are in use.

1

Attach the printer’s USB cable directly to
the computer, rather than at the end of a
daisy chain.

2

Avoid using other devices in the daisy
chain while printing.

You may be trying to print
a photo.

Enable Hardware ECP to speed photo
printing.

1

Open the

HP DeskJet Toolbox

(see

page 8).

2

Click on the

Configuration

tab.

3

Check

Attempt to Use Hardware ECP

.

4

Apply

your changes and try printing your

photo again.

Why won’t it print? continued

What is the problem?

Possible cause

To solve the problem…

40

Getting Help When Things Go Wrong

4

What do the flashing lights mean?

What is the problem?

Possible cause

To solve the problem…

The Power Light is
flashing.

Your printer may be receiving
data.

Be patient.

The Resume Light is
flashing.

You may be out of paper.

1

Insert paper.

2

Press the Resume Button .

You may have a paper jam.

1

Pull the paper out of either the IN tray or
the OUT tray.

2

Press the Resume Button on the front of
the printer.

3

If you were printing labels, make sure a
label did not become unglued from the
label sheet while going through the printer.

4

If the paper jam has cleared, print your
document again.

5

If the paper jam hasn’t cleared, open the
Rear Access Door by turning the knob
(counter clockwise) and removing the door.

6

Pull the jammed paper out of the printer,
then replace the Rear Access Door.

You may be printing a two-
sided document by hand and
the first side has finished
printing.

1

Follow the on-screen directions for how to
insert the paper.

2

Press the Resume Button .

The Print Cartridge Status
Light is flashing.

The top cover may be open.

Close the top cover.

There may be a problem with
one of the print cartridges.

See

“Print Cartridge Status” on page 25.

All of the lights are
flashing.

The printer may need to
be reset.

1

Press the Power Button to turn the printer
off. Then press the Power Button again to
turn the printer back on.

2

If that doesn’t solve the problem, press the
Power button to turn the printer off.

3

Unplug the printer.

4

Plug the printer back in.

5

Press the Power Button to turn the printer
on.

41

Getting Help When Things Go Wrong

4

Is there a problem with your printout?

What is the problem?

Possible cause

To solve the problem…

Parts of the
document are
missing or are in the
wrong place.

Paper may not be loaded
correctly.

1

Make sure the media is correctly oriented
in the IN tray.

2

Make sure the paper guides fit snugly
against the media.

You may have selected the
wrong paper orientation.

Make sure you have selected the correct
orientation (portrait or landscape) on the

Features

tab. See “Features Tab” on page 7

You may have selected the
wrong paper size.

Make sure you have selected the correct
paper size in the

Setup

tab. See “Setup Tab”

on page 6.

You may have selected the
wrong margins.

Make sure the margins are within the printable
area. See “Minimum Printing Margins” on
page 5.

You may have accidentally
left

Poster Printing

on.

Uncheck

Poster Printing

in the

Features

tab.

See

“Features Tab” on page 7.

42

Getting Help When Things Go Wrong

4

Print quality is poor.

You may not be using the best
media.

• Make sure that you are using media

intended for HP DeskJet printers.

• Print quality is dramatically improved if you

print on paper specifically designed for a
certain output (photographs, for example),
rather than using plain paper.

You may be printing on the
wrong side of the media.

Make sure that the media is loaded print side
down.

You may not have selected
the correct paper type in the
printer software.

Make sure that you have selected the correct
paper type in the Setup tab. See “Setup Tab”
on page 6.

You may be printing in Draft
mode.

Click

Normal

or

Best

instead of Draft on the

Setup tab. See “Setup Tab” on page 6.

If you have smearing, you
may be using too much ink.

1

Click

Normal

or

Draft

instead of Best on

the Setup tab. See “Setup Tab” on page 6.

2

Reduce the amount of ink by going to the

Advanced

tab and using the Ink Volume

slider. See

“Advanced Tab” on page 7.

3

Increase the dry time by going to the

Advanced

tab and using the Dry Time

slider. See

“Advanced Tab” on page 7.

You may be printing in
grayscale.

Uncheck

Print in Grayscale

on the

Advanced

tab. See

“Advanced Tab” on page 7.

You may be running out of
ink.

1

Check the print cartridges status. See

“Print

Cartridge Status” on page 25.

2

If you are running out of ink, replace the
print cartridge. See

“Replacing Print

Cartridges” on page 27.

You may need to clean the
print cartridges.

See

“Cleaning Print Cartridges” on page 30.

Is there a problem with your printout? continued

What is the problem?

Possible cause

To solve the problem…

43

Getting Help When Things Go Wrong

4

Print quality is poor.
(continued)

You may have forgotten to
remove the vinyl tape from
the print cartridge.

Make sure that you have removed the
protective piece of vinyl tape on each of the
print cartridges. See “Replacing Print
Cartridges” on page 27.

Your print cartridges may be
out of alignment.

If the color and black ink aren’t lining up on
the printed page, go to the

HP Toolbox

and

click

Calibrate the Printer

. See

“Printer

Services Tab” on page 8.

Banners aren’t
printing
correctly.

You may have forgotten to
raise the OUT Tray Flap.

Make sure that the OUT Tray Flap is up.

You may have forgotten to
select

Banner

in the printer

software.

Make sure that you have selected

Banner

on

the

Setup

tab. See

“Setup Tab” on page 6.

You may have problems with
the paper.

• If several sheets feed into the printer

together, unfold and refold the paper.

• If paper doesn’t feed into the printer

correctly, be sure that the unattached edge
of the banner paper stack is toward the
printer (see page 20).

• If the paper creases going through the

printer, the paper might be unsuitable for
banner printing.

You may have problems with
your banner software.

For Windows 95, 98, and NT 4.0
• If gaps in the printing appear at the ends of

the sheets, the problem might be with your
software program. See Release Notes by
clicking

Start

Programs

HP

DeskJet

930C Series

.

For Windows 3.1x
• If gaps in the printing appear at the ends of

the sheets, the problem might be with your
software program. See the Release Notes in
the HP DeskJet 930C Series Program Group.

Is there a problem with your printout? continued

What is the problem?

Possible cause

To solve the problem…

44

Getting Help When Things Go Wrong

4

Photos aren’t
printing correctly.

You may not have inserted the
photo paper correctly.

Insert the photo media glossy side down.

The photo paper may not be
fully engaged.

1

Review the printing instructions on page 10.

2

Make sure that the paper length guides are
snug up against the photo paper.

You may not have selected
the appropriate

Paper Type

or

Paper Size

.

1

Go to the

Setup

tab in the printer

software. See

“Setup Tab” on page 6.

2

Select an HP Photo Paper as the

Paper

Type

.

3

Select the appropriate sized photo paper as
the

Paper Size

.

4

Click

Apply

, and then

OK

.

5

Print your document.

You may not have selected

Best

print quality.

1

Go to the Setup tab in the printer software.
See

“Setup Tab” on page 6.

2

Select

Best

print quality.

Is there a problem with your printout? continued

What is the problem?

Possible cause

To solve the problem…