A SERVICE OF

logo

7-62 Troubleshooting
EN
EconoMode is on.
EconoMode saves
toner by reducing the
dot density. This may
appear to be a print
quality problem in
some cases.
Turn EconoMode off.
Paper does not meet
specifications. The
moisture content,
conductivity, or
surface finish may not
work correctly with the
electrophotographic
process.
Try a different paper lot (see
HP LaserJet Printer
Family Paper Specifications Guide
).
Transfer Roller is
defective or incorrectly
installed. If the
transfer roller loses
conductivity, it cannot
effectively pull toner
from the drum to the
paper.
Inspect the Transfer Roller for proper installation and
contact. If the Transfer Roller is damaged, replace it.
Laser/Scanner door
is not opening
properly.
1. Remove and reseat the toner cartridge.
2. Check the Laser/Scanner shutter door for proper
operation. If defective, replace the Laser/Scanner
Assembly.
High voltage contact
springs are dirty or
defective. The high
voltage contacts are
mounted on the High
Voltage Power Supply
PCA and protrude into
the toner cartridge
cavity.
Check the contacts for functionality. If dirty, clean
using alcohol; if damaged, replace the High Voltage
Power Supply PCA.
Table 7-19. Faded Print/Bubbles (continued)
Possible Cause Action