Xerox 7700DX - Phaser Color Laser Printer Service Manual page 69

Table 2-2 Service Diagnostics Test Menu Functions (cont'd.)
Test
Read Fuser
Fuses
Accum MOB
Sensor
Belt Edge
Sensor
BTR Sensors
ADC Sensors
Toner Waste
Cartridge
Tray Sensors
MPT Sensors
HCF Sensors
ATC Sensor
Front Panel Display
Fuse 1 is Open
Fuse 2 is Open
Fuse 3 is Shorted
MOB sensor is L
Edge is nnn (current value)
BTR Y is L
BTR M is L
BTR C is L
BTR K is L
2nd BTR is L
ADC is H
Waste Cartridge presence is H
Waste Cartridge full is H
Tray 1
Do you want auto media lift?
Yes
No
Tray 1: SW1-4:HHHL-<Letter>
Level: H
NoPaper: L
Tray 2 - <same as tray 1>
Tray 3 - <no data available if
HCF is installed>
Tray 4 - <same as tray 3>
MPT No Paper is L -
engineering use only
MPT size is XXX
No HCF Attached
or
HCF Path 1 is L
HCF Path 2 is| L
ATC 1 is nnn
ATC 2 is nnn
ATC 3 is nnn
ATC 4 is nnn
Phaser 7700 Color Laser Printer Service Manual
Test Operation, Results and
Function
Definition
50 page fuse
90 day fuse
Mis-Use fuse
Open indicates Fuse is blown.
Accumulator Mark-On-Belt
Engineering use only
Approximately 500 (+/- 25)
Engineering use only
H = Error
L = No error
ADC = Automatic Density Correction
Engineering use only.
Go to ADC Output check under
adjustments and calibration.
All door switches must be closed.
H = Present or full
L = Not present or not full
The four switch pattern indicates the
media size.
L = Tray not lifted
H = Tray lifted
H = Paper not present
L = Paper present
Note: Level 6 entries for Trays 2-4
follow the same pattern as for Tray 1.
MPT = Multi-Purpose Tray
Range (0 - 1000)
i.e. Letter LEF approx. 180
i.e. Letter SEF approx. 460
High-Capacity Feeder
Engineering use only
ATC = Automatic Toner Calibration
Value range (0 - 1000)
Engineering use only
2-39