HP Laser Jet 5550

Supplies
The customer replaces print cartridges, the fuser, and the ETB unit as they are depleted.
Printer Maintenance explains when to replace supplies and provides instructions on
replacing them.
Note
The printer tracks the amount of use on the customer-replaceable supplies by keeping a
page count. Swapping supplies between printers might cause a misrepresentation of supply
life values and is not recommended.
Note
If you replace either the fuser or the ETB when servicing the printer, and these supplies
have not yet reached the end of their estimated life, you must reset the page count for these
supplies through the Configure device menu on the control panel. See
Replacing the fuser
for instructions on resetting the ETB and fuser counts.
Table 6-2. Approximate replacement intervals for supply items
Supply item Printer message Page counts Approximate
time period
1
To install
Black (K) print
cartridge
REPLACE
BLACK
CARTRIDGE
13,000 pages
2
3.25 months See WARNING!
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Cyan (C) print
cartridge
REPLACE CYAN
CARTRIDGE
12,000 pages
2
3.0 months See Changing
print cartridges.
Magenta (M) print
cartridge
REPLACE
MAGENTA
CARTRIDGE
12,000 pages
2
3.0 months See Changing
print cartridges.
Yellow (Y) print
cartridge
REPLACE
YELLOW
CARTRIDGE
12,000 pages
2
3.0 months See Changing
print cartridges.
Image transfer kit
(ETB)
REPLACE
TRANSFER KIT
120,000 pages
3
40 months See Replacing
the transfer unit
(ETB).
Image fuser kit REPLACE
FUSER KIT
150,000 pages 50 months See Replacing
the fuser.
1
Approximate lives are based on 3,000 pages per month.
2
The approximate average A4/Letter-size page count is based on 5% coverage of individual
colors. Page counts are only estimations; usage conditions and print patterns cause results
to vary.
3
Page counts are only estimations; usage conditions and print patterns cause results to vary.
CAUTION
Hewlett-Packard recommends the use of HP products in this printer. Use of non-HP
products can cause problems that require service not covered by the Hewlett-Packard
warranty or service agreements.
188 Chapter 6 Removal and replacement ENWW