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Image Quality Tables
Possible Cause Recommended Action
OCCASIONAL BLANK PAGES:
1. Software Configuration. Make sure the application software is not
sending incorrect page length requests, or extra
page eject commands.
2. Network Configuration. Some sharing devices
on networks may generate a blank page as a
separator.
Check with the network administrator.
3. Multiple Feeds. The printer may be feeding
two or more pages at once because the paper is
difficult to separate.
Remove the paper from the tray and fan the paper
edges to separate the pages (see
HP LaserJet
Printer Family Paper Specifications Guide)
.
ALL PAGES BLANK:
1. Sealing tape left in toner cartridge. Remove the sealing tape.
2. Empty or defective toner cartridge. 1. If unsure, weigh the cartridge:
Full weight = 3000 grams (106 oz)
Empty weight = 2300 grams (80.5 oz)
NOTE: Some toner may reside in the waste
toner cavity, affecting the weight of the cartridge.
2. Perform the “Drum Rotation Functional Check”
described later in this chapter or try a known good
toner cartridge. Replace the toner cartridge if
necessary.
3. Defective or contaminated Transfer Roller.
Without a functional Transfer Roller, toner
cannot be pulled from the photosensitive drum
to the paper.
Check roller installation and contact. Perform
the “Half Self Test Functional Check” described
later in this chapter. If there is an image on the
drum, but not on paper, replace the Transfer
Roller.
4. High voltage connector springs are dirty or
defective. The high voltage connectors are
mounted on the High Voltage Power Supply PCA
and protrude into the toner cartridge cavity.
Check the springs for functionality. Clean if dirty,
replace if defective or missing.
5. Laser/Scanner door not opening properly. 1. Remove and re-seat the toner cartridge.
2. Check the Laser/Scanner shutter door for
proper operation. If defective, replace the
Laser/Scanner Assembly.
6. High Voltage Power Supply is defective. Replace the High Voltage Power Supply PCA.
7. DC Controller PCA is defective. The DC
Controller supplies the proper voltage to the
High Voltage Power Supply PCA.
Replace the DC Controller PCA.
Table 7-6 Blank (White) Page
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