Troubleshooting
Image Formation Troubleshooting
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5. High Voltage Connector Assembly is
Check the pins and springs for
defective. The High Voltage Connector
functionality. Clean if dirty, replace is
Assembly mounts on the DC Controller
defective or missing.
PCA and uses spring-loaded pins to con-
tact the toner cartridge.
6. DC Controller PCA is defective, The
Replace the DC Controller PCA.
DC Controller supplies the proper volt-
age to the High Voltage contacts.
Table 7-19 Black Page
POSSIBLE CAUSE
RECOMMENDED ACTION
1. Defective toner cartridge. Replace the toner cartridge,
2. Light is leaking into the printer. Ensure all covers are in place.
3. High Voltage Connector Assembly is
Inspect and clean the contacts on the
defective. The High Voltage Connector
High Voltage Connector Assembly.
Assembly mounts on the DC Controller
Closely inspect the primary roller
PCA and uses spring-loaded pins to con- contacts (see Figure 7-2). If damaged,
tact the toner cartridge. replace the High Voltage Connector
Assembly.
4. High voltage power supply circuit is de- Replace the DC Controller PCA.
fective (not supplying the correct nega-
tive voltage).
5. DC Controller PCA is defective. If the
Replace the DC Controller PCA.
DC Controller turns ON the laser beam
continuously, the entire surface of the
Photosensitive drum is neutralized caus-
ing a completely black page.
7, Laser/Scanner Assembly faulty (turn-
Replace the Laser/Scanner Assembly.
ino laser on continuously).
8. Connector between the Laser/Scanner
Replace the Scanner/DC Controller
Assembly and DC Controller is defective.
connector,
7-25
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