5. Wait for the calibration to complete.
6. Print a page and observe changes. Repeat this
procedure if needed.
V. Associated Printing Issues
38. Environmental Specifications
CAUTION: Print quality problems might be due
to abnormal work environment, for example,
excessively humid or dry conditions. Verify that
the printer is in a work environment within the
following specifications:
Environment Recommended Allowed
Temperature 17 to 25° C 10 to 30° C
(62.6 to 77° F) (50 to 86° F)
Humidity 30 to 70% RH 10 to 80% RH
Altitude 0 to 2600 m
(0 to 8530 ft)
39. More About Cartridge Chips
Most toner cartridges since the HP LaserJet 4100
use chip technology to interact with the printer for
reporting a variety of data from numbers of drum
turns to detecting cartridge identity as OEM or oth-
erwise.
HP color cartridge chips also identify toner color,
so the printer senses if someone installed a cartridge
in the wrong position in the printer.
Cartridge chips might be referred to by other
names such as e-labels, eeproms, or memory tags.
Recent advancements in chip technology include
triggering machine changes to critical imaging set-
tings depending on their duration of use.
Improper cartridge installation or other forms of
abuse can damage the integrity of cartridge chips.
Since chips electrically interact with the printer, you
should turn off the printer before installing a toner
cartridge fitted with a chip. At least in the world of
HP LaserJets, a “blown” chip does not necessarily
totally disable printer operation.
36. Printing a PQ Troubleshooting Test
NOTE: PQ stands for print quality and this test
shows individual cartridge performance well.
This procedure applies to the following HP Color
LaserJet models: 3000/3600/3800, 3500/3550/3700,
4600/4650, 4700/4730, 5500/5550 and 9500. For
other HP models, see the user or service manual.
1. Press the MENU or the Select (4) button to enter
the Menus.
2. Press the down arrow (t) repeatedly to highlight
DIAGNOSTICS, then press 4.
3. Press t repeatedly to highlight PQ TROUBLE-
SHOOTING, then press 4 to print the test pages.
NOTE: The printer will print up to seven or more
pages, four of which are screens of the four
process colors, cyan, yellow, magenta, and black.
Observing these pages highlights specific color
cartridge problems.
4. Replace color cartridges showing defects and re-
peat the test to confirm their quality.
NOTE: If defects remain, the problem could be an-
other printer mechanism rather than a cartridge.
37. Calibrating a Color Laser Printer
NOTE: This procedure applies to the follow-
ing HP Color LaserJet models: 3000/3600/3800,
3500/3550/3700, 4600/4650, 4700/4730, 5500/5550
and 9500. For other HP models, see the user or
service manual.
1. Press the MENU or the Select (4) button to enter
the Menus.
2. Press the down arrow (t) to highlight CONFIGURE
DEVICE, then press 4.
3. Press t to highlight PRINT QUALITY, then press 4.
4. Press the t repeatedly to highlight CALIBRATE
NOW (FULL CALIBRATE NOW on some models),
then press 4.
HP
®
is a registered trademark of Hewlett-Packard Company. IBM
®
is a registered trademark of International Business Machines Corporation. Lexmark
®
is
a registered trademark of Lexmark International, Inc. The trademarks and product numbers used in this document are for compatibility purposes only.
© 2007 All rights reserved.
Trademarks referenced are property of their respective holders and are used for identification purposes only. No company distributing this material shall
be liable for errors contained in this document or for incidental or consequential damages connected with the use of this material.
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