Index I-3
7525-63x
operator panel cover with light pipe 4-103
operator panel frame cover 4-107
output bin tray 4-108
photoconductor unit 4-63
pick tires-integrated 250 sheet media tray 4-60
printhead 4-61
procedures 4-2
rear case with speaker 4-108
rear shield 4-7
redrive unit 4-93
right lower frame 4-53
right scanner cover 4-94
RIP board 4-19
sleep button 4-110
sleep button pcb 4-110
speaker 4-111
toner cartridge contacts 4-64
toner meter cycle card 4-66
toner patch sensor 4-68
tray present sensor 4-69
USB cable 4-112
USB connector 4-72
user interface controller card 4-113
user interface controller card cable 4-112
waste toner bottle 4-73
waste toner bottle contact 4-74
repair information 4-1
right scanner cover, removal 4-94
RIP board, removal 4-19
S
S1 sensor, service check 2-35
safety information ii-xvii
safety inspection guide 6-1
scan, fax and copy symptoms 2-3
SE Menu 3-43
sensors
duplex, service check
2-35
duplex/manual feed sensor (S1), service check 2-35
front door, service check 2-36
fuser exit, service check 2-37
input sensor (S2), service check 2-39
tray present, removal 4-69
tray sensor service check 2-56
service checks
900.xx system software error
2-28
90x.xx error 2-31
925.01 fan error 2-31
925.01—fan error 2-31
950.xx NVRAM failure 2-32
ADF service checks 2-62
autocompensator mechanism 2-32
bin full sensor 2-33
black page 2-60
dead printer 2-34
duplex/manual feed sensor (S1) 2-35
fax card 2-66
fax transmission 2-67
flatbed 2-61
flatbed motor 2-61
front door sensor or switches 2-36
fuser 2-38
fuser exit sensor 2-37
input sensor (S2) 2-39
main drive gear assembly 2-40
modem 2-66
networking 2-44
op panel USB cable 2-43
operator panel 2-41
option trays 2-57
print quality 2-45
see also print quality service check
printhead
2-54
scanner, fax, copy 2-59
840xx error check 2-59
black page or blank page 2-60
CCD service check 2-60
fax reception service check 2-68
flatbed home position 2-61
flatbed motor 2-61
transfer roll 2-56
tray sensor 2-56
USB 2-43
service error messages 2-13
symptom tables 2-2
symptoms
print quality
2-4
printer 2-2
scan, fax and copy 2-3
T
theory of operation
color theory
3-67
paper path transport components 3-64
print engine theory 3-55
scanner 3-66
toner cartridge contacts, removal 4-64
toner meter cycle card, removal 4-66
toner patch sensor, removal 4-68
tools required 1-19
transfer roll, service check 2-56
U
USB connector, removal 4-72
W
waste toner bottle contact, removal 4-74
waste toner bottle, removal 4-73
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