228 Troubleshooting EN
Check the toner cartridge
Image formation defects are often the result of problems with the toner cartridge. If there is any
doubt, always replace the toner cartridge before troubleshooting image defects.
Use the following checklist to ensure that the toner cartridge is still operable.
!
Ensure that the toner cartridge has toner. Weight is one indication of the presence of toner, as
shown in table 41.
1.
Depending on the exact pages printed, the toner cartridge might be empty and weigh more
than these values.
!
Check the expiration date of the toner cartridge (stamped on the box).
!
Check the toner cartridge to see if it has been disassembled or refilled.
!
Ensure that the toner cartridge is seated properly in the printer.
!
Inspect the cartridge for toner leaking through worn seals. (If the drum has been manually
rotated, the rotation might have caused internal damage and toner might spill.)
Table 40. Image quality checks
Image quality checks Action
Does the problem repeat on
the page?
Use the repetitive defect ruler on page 243.
Is the toner cartridge full and
is it manufactured by HP?
Check the toner cartridge using the checklist on page 228.
Is the customer using print
media that meets all HP
paper specification
standards?
For more information about HP’s paper specification standards,
see chapter 1 of this manual and the
HP LaserJet Printer Family
Print Media Guide
.
Is the print sample similar to
those in the print-quality
tables see page 1-22?
Compare and perform the actions recommended in the print-
quality tables.
Is the problem on the toner
cartridge drum or the
transfer roller?
Perform the half self-test functional check (page 244) to determine
where the defect is.
If a dark and distinct toner image is preset on the drum’s surface,
assume that the first four functions of the electrophotographic
process are functioning (cleaning, conditioning, writing, and
developing–see chapter 5), and troubleshoot the failure as a
transfer or fusing problem.
Table 41. Weights of toner cartridges
Toner Cartridge
Capacity
Full
Weight
Typical Empty
Weight
1
6,000 pages 1343 grams
(47.4 ounces)
1105 grams
(39 ounces)
10,000 pages 1490 grams
(52.59 ounces)
1110 grams
(39.18 ounces)
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