Xerox Phaser 840 Service Manual page 86

Table 2-6 22,000 Fault Codes and Actions
Error code
Additional clues
7. Stripper fingers or rapid
release guide do not move
freely
8. Media jammed on or
completely under stripper
fingers or rapid release guide -
margin too large or too small
9. Media over stripper fingers
or rapid release guide - not
damaged and stopped at strip
sensor
10. Media under transfix roller
right at stripper fingers
11. Media doesn't make it to
the transfix roller
22,900.04 Unexpected front door event
1. Media perfect in media path
or tray
22,901.05 Unexpected exit cover event
1. Media perfect in media path
or tray
2 - 70 Phaser 840/850/860/8200 Color Printer - Service Manual
Probable cause
a. Bushing out of place
b. E-ring missing
c. Parts bound up
a. Preheat sensor not seated
properly
b. Preheat sensor not properly
assembled to bracket
c. Preheat sensor is bad
a. Problem with strip flag
b. Bad transfix exit sensor
a. Eccentric solenoid problem
b. Transfix cam problem
c. Cam spring problem
a. Too much drag in drive-train
or preheater
a. Short-grained media
a. Unknown (static?)
b. Someone opened a door
a. Unknown (static?)
b. Someone opened a door
Action
a. Reassemble stripper
fingers or rapid release
guide
b. Reassemble stripper
fingers or rapid release
guide
c. Reassemble stripper
fingers or release guide
a. Confirm bracket is
properly screwed down
onto load frame
b. Reseat sensor
c. Replace preheat exit
sensor
a. Replace pivoting blue
lower exit guide
b. Replace sensor assembly
a. Replace eccentric
solenoid
b. Replace cam
c. Replace drum transfix
assembly
a. Use PC-based
diagnostics to run "verify
drive current
requirements" from the
paper path group, to
check for stall, or feel for
unevenness in motor
rotation by manually
turning. Replace paper
path motor if needed.
Check electronics if
needed
b. Use long-grained media
a. Run again
b. Close door
a. Run again
b. Close door