HP LaserJet Enterprise M552 - Page 438

Table 2-54 Image defects table (continued)
Problem Sample Cause Solution
Page is blank. The high-voltage power-supply
D is defective (no developing
bias output).
Replace the high-voltage power
supply D.
The page is solid black or a solid
color.
Poor contact exists in the
primary charging bias or
developing bias contacts
between the toner cartridge and
the printer.
Clean each contact of the color that
produces the all black or solid color. If
the problem remains after cleaning,
check the contacts for damage.
Replace any deformed or damaged
parts. Replace the aected toner
cartridge.
White spots appear in the image. The static eliminator is dirty. Clean the static eliminator.
The primary transfer roller is
deformed or has deteriorated
Replace the ITB.
The secondary transfer roller is
deformed or has deteriorated.
Replace the secondary transfer roller
assembly.
410 Chapter 2 Solve problems ENWW