hp lj 3800 color shift

[Billy Bob]

im a pana tech working on hp 3800 w/ color shift on mag toner only , on supply status page aprox 3mm shift down on mag bar only?

[prntrfxr]

Go to Diagnostics > PQ Troubleshooting > SELECT (isolates colors)
Go to Diagnostics > Print Diagnostics Page > SELECT (color registration check)

Perform 3 Calibrate Now's to see if the problem goes away.

Color Registration issues caused by:

1. Affected cartridge (single color)
2. Cartridge drive gears damaged (single color)
3. ETB (more than one color)
4. Damaged gears between image drive and drum motor (replace image drive)
5. Laser Scanner unit is defective
6. DC Controller is defective