Pre-troubleshooting checklist
..........................................................................
373
Troubleshooting flowchart
...............................................................................
375
Power subsystem
............................................................................................................
376
Power-on checks
.............................................................................................
376
Power-on troubleshooting overview
...............................................
376
Tools for troubleshooting
..................................................................................................................
378
Individual component diagnostics
....................................................................................
378
LED diagnostics
..............................................................................................
378
Understand lights on the formatter
.................................................
378
Engine diagnostics
..........................................................................................
381
Troubleshooting menu
....................................................................
381
Defeating interlocks
........................................................................
384
Disable cartridge check
..................................................................
385
Engine-test button
..........................................................................
386
Paper-path test
................................................................................................
386
Manual sensor test (special-mode test)
..........................................................
387
A TOP (top of page) sensor
............................................................
389
B and C loop sensors
.....................................................................
390
D fuser (fixing) delivery sensor
.......................................................
391
E duplex re-pickup sensor
..............................................................
392
F output bin full sensor
...................................................................
393
G developing home-position sensor
..............................................
394
H fuser (fixing) pressure-release sensor
.......................................
395
I primary transfer-roller disengagement sensor
..............................
396
K right and front door interlock switches
.........................................
398
L Tray 1 media present sensor
......................................................
400
M Tray 2 paper out sensor
.............................................................
401
N Tray 2 closed sensor
...................................................................
402
O Tray 2 stack-surface sensor
......................................................
403
P optional Tray 3-empty sensor
......................................................
404
Q optional Tray 3 media-feed sensor (Q)
.......................................
405
R optional Tray 3 stack-surface sensor (R)
....................................
406
S, T, and U optional Tray 3 media-size sensors
............................
407
Paper-path sensors test
..................................................................................
408
Print/Stop test
..................................................................................................
409
Component tests
.............................................................................................
409
Component test (special mode test)
...............................................
409
Diagrams
.........................................................................................................................
411
Formatter PCA
................................................................................................
411
Location of connectors
....................................................................................
412
DC controller PCA
..........................................................................
412
Paper feeder driver PCA
................................................................
413
PCAs, motors, fans, switches, solenoids, and clutches
..................................
414
Base product
..................................................................................
414
ENWW
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