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TOP (top-of-page) sensor (PS5) .................................................. 294
Fuser loop sensors 1 and 2 (PS7 and PS8) ................................. 295
Fuser pressure-release sensor (PS9) ............................................ 296
Fuser output sensor (PS6) .......................................................... 297
Developer alienation sensor (PS11) ........................................... 298
ITB alienation switch (SW5) ...................................................... 299
Tray/Bin manual sensor test .................................................................... 300
Tray 1 paper sensor (PS2) ........................................................ 302
Tray 2 paper present sensor (PS1) ............................................. 303
Tray 2 paper surface sensor (PS4) ............................................. 304
Tray 2 paper size switches (SW7 and SW8) .............................. 305
Tray 3 paper sensor (SR3) ........................................................ 306
Tray 3 paper surface sensor (SR2) ............................................. 307
Tray 3 paper size sensors (SW2 and SW3) ............................... 308
Tray 3 feed sensor (SR1) .......................................................... 309
Tray 3 door opening/closing sensor (SW1) ................................ 310
Tray 4 paper sensor (SR3) ........................................................ 311
Tray 4 paper surface sensor (SR2) ............................................. 311
Tray 4 paper size sensors (SW2 and SW3) ............................... 311
Tray 4 feed sensor (SR1) .......................................................... 311
Tray 4 door opening/closing door sensor (SW1) ........................ 311
Tray 5 paper sensor (SR83) ...................................................... 312
Tray 5 paper surface sensor (SR82) ........................................... 312
Tray 5 paper size sensors (SW82 and SW83) ........................... 312
Tray 5 feed sensor (SR81) ........................................................ 312
Tray 5 door opening/closing sensor (SW1) ................................ 312
Tray 6 paper sensor (SR93) ...................................................... 312
Tray 6 paper surface sensor (SR92) ........................................... 312
Tray 6 paper size sensors (SW92 and SW93) ........................... 312
Tray 6 feed sensor (SR91) ........................................................ 312
Tray 6 door opening/closing sensor (SW1) ................................ 312
Output-bin-full sensor (PS10) ..................................................... 313
Paper-path sensors test ............................................................................ 313
Print/stop test ........................................................................................ 314
Component tests ..................................................................................... 314
Component test (special-mode test) ............................................ 314
Additional component tests ....................................................... 317
Diagrams ............................................................................................................. 319
Block diagrams ...................................................................................... 319
Plug/jack locations ................................................................................. 321
Location of connectors ............................................................................ 322
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