HP 5000n manual Faded Print/Bubbles Possible Cause Action, Family Paper Specifications Guide

Table 7-18. Dropouts (continued)

Possible Cause	Action
Paper does not meet	Try a different paper lot (see HP LaserJet Printer
specifications. The	Family Paper Specifications Guide).
paper moisture
content, conductivity,
or surface finish may
not work correctly with
the
electrophotographic
process.
DC Controller	Replace the DC Controller.
defective (low primary
voltage).
High Voltage Power	Replace the High Voltage Power Supply PCA.
Supply PCA defective.
Transfer Roller	Replace the Transfer Roller.
defective.
	See also “Blank Spots” on page 7-55.

Table 7-19. Faded Print/Bubbles

Possible Cause Action

No drum ground path. Check the contacts for functionality. If dirty, clean using alcohol; if damaged, replace the High Voltage Power Supply PCA.

Toner supply is low.	Shake the cartridge gently to redistribute the toner,
	or replace the cartridge.
Print Density is set	Change to a darker setting and retry printing.
incorrectly.

EN Troubleshooting the Printing System 7-61