HP J800 Part Numbers A B

HP DeskJet 700/800 Series Printers General Refilling Policy

General Refilling Policy

To get the best performance from your printer, Hewlett-Packard
recommends using only genuine HP supplies in inkjet printers, including only
HP print and photo cartridges. Refilling HP print cartridges pushes electronic
and mechanical components past their normal life cycle, creating many
potential problems. Additionally...

Non-HP ink can cause:

print cartridge nozzles can become clogged resulting in streaked
copy or fuzzy characters.

print cartridge electrical components can become corroded resulting
in poor print quality and/or complete print cartridge failure.

Ink leaking from a refilled print cartridge may cause:

service station failure. The service station caps and cleans the print
cartridges between printouts. If the service station malfunctions,
irreversible damage to the print cartridges may result.

Caution

severe printer damage. If ink from a leaking print cartridge falls on
electrical components within the printer, severe damage to the
printer may result.

The ink in the print cartridges has been carefully formulated
by Hewlett-Packard to ensure superior print quality and
compatibility with the printer. Damage to the printer resulting
from modifying or refilling of HP print cartridges is not the
responsibility of Hewlett-Packard and is specifically excluded
from coverage of HP printer warranties.

Hewlett-Packard does not support the refilling of print
cartridges. Hewlett-Packard cannot guarantee the print quality
from refilled print cartridges.

Attempting to refill the high­capacity print cartridge may result in a sudden loss of ink from
the print cartridge

capacity black ink or color ink print cartridges is not covered
by the Hewlett-Packard warranty or customer service
agreements.

. Printer damage caused by refilling high-

HP DeskJet 700/800 Series Printers Part Numbers

Part Numbers

Note Verify in the User’s Guide the print cartridge appropriate to

your printer.

Part Number Description

51641A Color Inkjet Print Cartridge

(Cyan, Magenta, and Yellow dyes)
51645A High Capacity Black Inkjet Print Cartridge
C1823A Photo-quality Color InkJet Print Cartridge (Cyan, Magenta, and Yellow dyes)

Caution The C1823A and 51641A color cartridges are alike

physically. However, the C1823A is not backward compatible
with previous printers which use the 51641A such as the HP
DeskJet 850, 855, 820 and 870. An electrical lock-out has
been provided on the C1823A to prevent its being used in
place of the 51641A in these printers. Additionally, printers
designed to use the C1823A will not work with the 51641A.

If a user installs a C1823A in an older DeskJet 800 model,
the printer lights flash and the printer will not work.
Additionally, an on-screen message will inform the user that
something is wrong with the print cartridge.

Similarly, if the 51641A is installed in a printer designed for
the C1823A, again, the printer’s lights will flash and printer
will not work. Additionally, an on-screen message will inform
the user that something is wrong with the cartridge and ask
the user to install the HP C1823A color cartridge.

HP DeskJet 700/800 Series Printers Print Cartr idge Specifications

Print Cartridge Specifications

Specification Hewlett-Packard Print Cartridges

Type Plain paper drop-on-demand

Thermal InkJet printing

Ink Base

51645A (Black)
51641A (Color)
C1823A (Color)

Print Cartridge Life

51645A (Black)
51641A (Color)
C1823A (Color)

Typical Usable Ink

51645A (Black)
51641A (Color)
C1823A (Color)

Number of Nozzles

51645A (Black)
51641A (Color)
C1823A (Color)

Pen Speed

51645A (Black)
51641A (Color)
C1823A (Color)

Shelf Life 18 Months

1. The 51645A print cartridge life is based on an 8 in. x 10 in. printable area with a 5% printing
density.

2. The 51641A print cartridge life is based on an 8 in. x 10 in. printable area with a 15% printing
density. The printing consists of 10% composite black and 15% of the following colors: cyan,
magenta, yellow, green, red and blue.

3. The C1823A print cartridge life is based on an 8 in. x 10 in. printable area with a 15% printing

density. The printing consists of 10% composite black and 15% of the following colors: cyan,
magenta, yellow, green, red and blue.

1
2

Pigment-Based Ink
Dye-Based Ink
Dye-Based Ink

840 Pages at 5% Density
420 Pages at 15% Density
368 Pages at 15% Density

41 ml
14 ml per Chamber
14 ml per Chamber

300 Nozzles
192 Nozzles (64 per Color)
192 Nozzles (64 per Color)

12 kHz
6 kHz
12 kHz

HP DeskJet 700/800 Series Printers Thermal Inkjet Technology

Thermal Inkjet Technology

The HP DeskJet printer family uses Thermal InkJet II (TIJ II) technology.
This technology centers on a disposable print cartridge. The basic principle
of TIJ II is to apply heat to a tiny measure of ink until it expands and is
propelled through a nozzle.

The first step in the process is to fill a small reservoir, known as the firing
chamber with ink.

.

heater

nozzle plate

The next step is to heat the ink with a thin-film resistor layered above the
firing chamber. As the ink heats up, it expands to form a bubble.

.

drop formation

The bubble continues to expand and finally bursts.

HP DeskJet 700/800 Series Printers Thermal Inkjet Technology

At the instant when the bubble bursts, the ink is forced through the nozzle
located below the firing chamber and out onto the paper.

Bubble collapse
begins refill

.

Orifice meniscus settles to
complete refill

.

As the bubble collapses, the ink in the orifices retracts, breaking off the
ejected drop and drawing the meniscus into the orifice. The surface tension
in this deformed meniscus produces the suction to draw in fresh ink to refill
the chamber.

This process is repeated up to 12,000 times a second and creates residual
heat in the resistor. A layer of silicon is placed above the resistor to cool it
by transferring the residual heat away.

HP DeskJet 700/800 Series Printers Print Cartr idge Safety

Print Cartridge Safety

For HP 51641A and C1823A Color Print Cartridges

Potential Health Effects

Primary Routes of Exposure: Skin, eye, oral and inhalation
Acute Health Hazards:

Skin: Ink may cause slight skin irritation characterized by redness
and swelling after prolonged contact. Indications may be masked by
color of ink.

Eye: Ink may be mildly irritating.
Oral: Accidental ingestion of nitrates may result in respiratory

depression. Primary indicators of prolonged exposure include
shortness of breath, headaches, dizziness and cyanosis (bluish skin
and lips).

Inhalation: Prolonged intentional inhalation may result in primary
irritation to the respiratory tract.

Chronic Toxicity: None noted.
Carcinogenicity: No component is a listed carcinogen in the National

Toxicology Program (NTP) Annual Report or found to be
carcinogenic by International Agency for Research on Cancer
(IARC) or OSHA.

HP DeskJet 700/800 Series Printers Print Cartr idge Safety

First Aid Measures

If ink is accidentally ingested, contact the HP Health Line 1 [phone]
in North America. From all other international locations the HP Health Line
can be reached by calling 1 [phone]. For health related issues, this
line is staffed 24 hours per day.

First Aid for skin: Wash affected areas thoroughly with soap and
water.

First Aid for eye: Contact with eyes causes mild irritation.
Immediately flush with large amounts of clean, lukewarm water (low
pressure) for at least 15 minutes.

First Aid for ingestion: Seek appropriate medical attention for
accidental ingestion of nitrates.

Note

NOTE TO MEDICAL PROFESSIONALS:

for nitrite related toxicity (methemoglobinemia). The technical
literature indicates administration of 1 to 2 mg/kg of 1% methylene
blue slowly by IV if the patient is cyanotic and symptomatic or the
methemoglobin level is greater than 30% in an asymptomatic
patient. Additional doses may be required.

First Aid for inhalation: Remove to fresh air.

For more information, please refer to the MSDS (see below).

Treat symptomatically

HP DeskJet 700/800 Series Printers Print Cartr idge Safety

For HP 51645A Black Print Cartridge

Potential Health Effects

Primary Routes of Exposure: Skin, eye, oral and inhalation
Acute Health Hazards:

Skin: Ink may cause slight skin irritation characterized by redness
and swelling after prolonged contact. Indications may be masked by
color of ink.

Eye: Ink may be mildly irritating.
Oral: Ink may cause stomach upset.
Inhalation: Prolonged intentional inhalation may result in primary

irritation to the respiratory tract.
Chronic Toxicity: None noted.
Carcinogenicity: None of the ingredients in this ink formulation are

listed as carcinogens by either the National Toxicology Program
(NTP) or OSHA. Carbon Black has been listed by the International
Agency for Research on Cancer (IARC) as Group 2B (possible
human carcinogen).

First Aid Measures

If ink is accidentally ingested, contact the HP Health Line 1 [phone]
in North America. From all other international locations the HP Health Line
can be reached by calling 1 [phone]. For health related issues, this
line is staffed 24 hours per day.

First Aid for skin: Wash affected areas thoroughly with soap and
water.

First Aid for eye: Contact with eyes causes mild irritation.
Immediately flush with large amounts of clean, lukewarm water (low
pressure) for at least 15 minutes.

First Aid for ingestion: Ingestion of ink may caused stomach upset.
Call HEWLETT-PACKARD HEALTH LINE.

Seek medical attention if skin or eye irritation or stomach upset
persists.

First Aid for inhalation: Remove to fresh air.

HP DeskJet 700/800 Series Printers Print Cartr idge Safety

Note

For more information, please refer to the MSDS (see below).

Material Safety Data Sheet (MSDS)

A Material Safety Data Sheet (MSDS) is available for the print cartridges.
The MSDS includes product identification, characteristics of the ink, and
precautions for handling and use. You can request a MSDS at the following
address:

Hewlett-Packard Customer Information Center
Department MSDS
19310 Pruneridge Avenue
Cupertino, CA 95014
Mailstop 49AS

Telephone [phone]
Ask for Department MSDS (6:00 AM to 5:00 PM Pacific Time)

The Material Safety Data Sheet is also available from the following sources:

HP forums of electronic bulletin board services
HP FIRST
Customer Support Centers

Refer to “Service and Support/Resources” for access to the above
resources.

HP DeskJet 700/800 Series Printers Maintaining Print Cartridges

Maintaining Print Cartridges

The printer automatically performs operations of spitting, wiping, and
capping of the print cartridge nozzles to maintain optimum print quality.
These operations occur transparently to the user.

Proper use and handling will provide optimum print quality and print cartridge
life.

Print Cartridge Tips

Print Cartridge Dos and Don’ts

Do: Don’t:

Keep print cartridges sealed in their packaging
until ready for use. (The print cartridges have a
longer life sealed in the packaging than in the
printer or the print cartridge storage container.)

Keep opened print cartridges in the printer. Do not unplug the printer without turning the

If the printout is missing dots or white lines
appear to run through the printout, refer to
“Troubleshooting Information/Print Quality
Problems/Missing Dots”.

Store print cartridges at room temperature. Do not install a print cartridge that has crusting

Press the Power button to turn off the printer
rather than unplugging the printer.

Do not use print cartridges after the expiration
date. See “Print Cartridge Information/
Maintenance and Troubleshooting”.

power off from the power button. Pressing the
power button caps the print cartridge in the
service station, keeping the ink from drying in
the print cartridge nozzles.

Do not allow the print cartridge contacts and
nozzles to touch any surface or object,
including your fingers. Skin oil and dust can
cause print quality problems.

of dried ink around the print cartridge nozzles.
Discard it and install a new print cartridge.

Note Opening the access door automatically moves the print

cartridge to the center of the mechanism for easy access.

HP DeskJet 700/800 Series Printers I dentifying the Expiration Date

Identifying the Expiration Date

Print quality problems may be caused by print cartridges that have passed
their expiration date. The print cartridge expiration date is 18 months after
the date of manufacture.

Methods for Identifying Print Cartridge
Expiration Dates

Method 1 - Read the Date on the Box

If the print cartridge is in a box, read the “Use Before” date printed on the
box.

HP DeskJet 700/800 Series Printers I dentifying the Expiration Date

Method 2 - Read the Code on the Print Cartridge

1. Determine the manufacturing date from the code printed on the print

cartridge.

51641A (Color)

51645A (Black)

2. Replace the print cartridge if it is more than 18 months after the

manufacturing date code.

Note

Ink can evaporate through the nozzles, reducing the print
cartridge life. Therefore, keep print cartridges in their sealed
container or capped by the service station at the right end of
the mechanism.

Use a FIFO (First In, First Out) inventory control process to
avoid having print cartridges longer than the print cartridge
shelf-life specification.

HP DeskJet 700/800 Series Printers Short Print Cart ridge Life

Short Print Cartridge Life

There are several causes for a short print cartridge life. The information
below identifies the average print cartridge life and possible causes for a
reduction to this cartridge life.

Print Cartridge Life Specifications

Sealed in its
Container

Print Cartridge Part Number

Black 51645A 840 Pages 18 Months
Color 51641A 420 Pages 18 Months
Color C1823A 368 Pages 18 Months

1. The 51645A print cartridge life is based on an 8 in. x 10 in. printable area with a 5% printing
density.

2. The 51641A print cartridge life is based on an 8 in. x 10 in. printable area with a 15% printing

density. The printing consists of 10% composite black and 15% of the following colors: cyan,
magenta, yellow, green, red and blue.

5% Density 15% Density

(Shelf Life)

Possible Causes for Short Print Cartridge Life

Cause Reason

Higher coverage rate than
listed in the specifications

Pages contain graphics Generally, graphics use ink at a much higher rate than text. If

Selected print mode Higher quality print modes use more ink than a draft print mode. To

Print cartridge past its
expiration date

Continued on next page

The rate of coverage on the page significantly impacts the number
of pages per print cartridge. Heavy concentrations of ink and higher
print quality settings significantly reduce the number of pages per
print cartridge.

possible, print drafts of documents without the graphics.

maximize print cartridge life, print drafts of documents in EconoFast
mode, then print the final copies in Best mode.

Replace the print cartridge. Use a FIFO (First In-First Out) inventory
process to minimize having a stock of expired print cartridges.

HP DeskJet 700/800 Series Printers Short Print Cart ridge Life

Possible Causes for Short Print Cartridge Life (Cont.)

Cause Reason

Printer unplugged with the
print cartridge out of its home
position

Print cartridge may need to
be restored

Excessive use of the print
cartridge cleaning routine

Print cartridge stored outside
of the printer

Refilled print cartridge Hewlett-Packard does not recommend or guarantee the print

Print cartridge prematurely
removed from its sealed
container

Incorrect estimate of pages
printed with the print
cartridge

Faulty print cartridge Replace the print cartridge. If there becomes a pattern of faulty

Printer hardware problem The service station may be faulty, or the printer may be

Short color print cartridge life Most of the causes for short black print cartridge life also apply

A service station is located at the right end of the mechanism.
This service station caps the print cartridge nozzles to minimize
ink drying in the nozzles. Turning off the printer caps the print
cartridge and returns it to the service station. Always allow the
print cartridge to return to the home position by pressing the
Power button rather than unplugging the printer.

Run the print cartridge cleaning routine. If print quality is not
restored after a page of printing, replace the print cartridge.

The process of restoring print cartridges by running the cleaning
routine uses ink. Avoid excessive use of the cleaning routine.

Open print cartridges must be stored in the printer.

quality or life from the refilling of print cartridges. Replace the
print cartridge with a new print cartridge.

The print cartridge has a longer life sealed in its packaging than
in the printer or the print cartridge storage container. Keep print
cartridges sealed in their packaging until needed. Then, install
the print cartridge promptly into the printer.

It is very easy to underestimate the number of pages printed.
When counting pages per cartridge, be sure to count drafts that
are thrown away.

print cartridges, the printer may be causing the print cartridges to
fail. In this case, return the printer for repair and indicate the
history of the faulty print cartridges.

damaging the print cartridges. If the problem recurs with the
printer, return the printer for repair and indicate the history of the
faulty print cartridges.

to the color print cartridge. Review the other possible causes in
this table.

HP DeskJet 700/800 Series Printers Print Car tridge Cleaning Routine

Print Cartridge Cleaning Routine

If rows of dots are missing on printouts, try using the print cartridge cleaning
routine found in the printer driver Services menu. Refer to the User’s Guide
for more information.

HP DeskJet 700/800 Series Printers Clearing Clogged Nozzles

Clearing Clogged Nozzles

If rows of dots are missing, if the print cartridge contains ink, and if the print
cartridge cleaning procedure did not solve the problem, the print cartridge
may have clogged nozzles. Replace the print cartridge.

HP DeskJet 700/800 Series Printers Printout Missing Dots

Printout Missing Dots

Horizontal rows of dots missing on printouts may be the result of a
connection problem between the printer carriage contacts and the print
cartridge contacts. For information about solving missing dot problems, refer
to "Troubleshooting Information/Print Quality Problems/Missing Dots".

HP DeskJet 700/800 Series Printers Print Quality Problems

Print Quality Problems

Refer to "Troubleshooting Information/Print Quality Problems/Misc. Print
Quality Problems".