4. Never place a toner cartridge near a light source,
damage to the drum will occur.
5. (Color machines only) Identify the color cartridge
slot into which the toner cartridge will be inserted.
6. Gently and fully insert the toner cartridge in the
printer, noting the proper positioning for insertion.
33. Cleaning a Laser Printer
CAUTION: Depending on the model laser printer,
toner dust, paper dust and other materials can ac-
cumulate after use. Carousel type printers such as
HP LaserJets 4500/4550 and 1500/2500/2550/2820 are
particularly susceptible to buildup. Toner leakage
could occur due to unusual circumstances. When ob-
serving accumulations, careful cleaning will restore
printing quality.
1. Remove toner cartridges and transfer mechanisms
before cleaning the printer, observing cautions of
the previous section.
2. Use a vacuum cleaner with toner filter to vacuum
loose material from exposed areas of the paper
path, especially under toner cartridges.
3. Use clean lint-free towels to wipe remaining dust or
a slightly moistened cloth for areas requiring deeper
cleaning.
4. Unless otherwise advised, DO NOT USE solvents
other than water to clean internal printer surfaces
such as belts or rollers.
5. Wipe off loose toner and other debris from toner
cartridges and other supply items before reassem-
bling the printer.
6. Run appropriate test prints to clear dust which typi-
cally remains in the paper path before returning to
normal printing.
34.
Printing a Configuration (Diagnostics) Page
NOTE: This procedure applies to the following HP Color La-
serJet models: 3000/3600/3800, 3500/3550 /3700, 4600/4650,
4700/4730, and 5500/5550 Series. Recent models such as
the 3000/3600/3800 and 4700/4730 Series call this the “Di-
agnostics Page” found in the Diagnostics Menu. For other
HP models, see the user or service manual.
For 3500/3550/3700, 4600/4650, and 5500/5550 Series
1. Press the MENU or the Select (4) button to enter the
Menus.
2. Press the down arrow (t) (if needed) to highlight
INFORMATION MENU, then press 4.
3. Press t to highlight PRINT CONFIGURATION, then
press 4.
The Configuration Page will emerge, showing bands
and blocks of color for judging color densities and color
plane registration. Another page follows with network
configuration for those with JetDirect network cards
installed.
For 3000/3600/3800 and 4700/4730 Series
1. Press the MENU or the Select (4) button to enter the
Menus.
2. Press the down arrow (t) to highlight DIAGNOSTICS
MENU, then press 4.
3. Press t to highlight PRINT DIAGNOSTICS PAGE,
then press 4.
The Diagnostics Page will emerge, showing bands and
blocks of color for judging color densities and color
plane registration.
35. Adjusting Color Print Densities
NOTE: This procedure applies to the following HP Col-
or 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 4 to select ADJUST COLOR, then press 4.
NOTE: For HP CLJ 3000/3600/3800 or 4700/4730
models, use the next step (5a). For HP CLJ models
3500/3550/3700, 4600/4650, 5500/5550 and 9500
models, skip to step 5b.
5a. Press 4 to select HIGHLIGHTS or press t to MID-
TONES, or again for SHADOWS, then press 4.
5b. Select the color you want to darken or lighten. For
example, if the printed page appears to have too
much blue (cyan), you can set cyan from “0” as low
as “-5.” You can do the same with magenta, yellow
and black. Conversely, you can deepen a color by
adjusting each as high as “+5.” Press 4 to select the
desired setting.
6. Print a sample page after each set of adjustments
and, if needed, repeat the process for refining col-
ors.
7. Record the color densities adjusted to for future
reference.
NOTE: New density settings could take 20 to 100
pages before settling into these adjustments.
36. Printing a PQ Troubleshooting Test
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