2-58
Service Manual
Infoprint 1120 and 1125
Hot Fuser Service Check
Error Code 923: Indicates the fuser is too hot during printing or when
the printer is idle.
Error code 924: Indicates an open circuit has been detected in the
fuser thermistor circuit.
Note: Check the fuser sub error codes to help diagnose between a
923 and 924 error.
CAUTION: The fuser may be hot, use caution before removing or
servicing.
FRU
Action
1
Fuser Cover Assembly
(Assembly includes
Thermistor and Thermal
Fuses.)
Check for damage to the thermistor
assembly. If damage is found,
replace the fuser top cover
assembly. If no damage is found,
check the resistance of the
thermistor between pins J6-1 and
J6-2 on the cable.
• HOT = 2.5K ohms
• COLD =150K ohms to 260K ohms
If the resistance is incorrect, replace
the fuser top cover assembly. If the
resistance is correct, check each pin
of J6 to ground. If there is continuity,
replace the fuser cover assembly
2
Fuser Control Board
Check for continuity between J6-1
and J1-2 and between J6-2 and
J1-3. If incorrect, replace the fuser
control board. If correct, go to step 3.
3
Fuser to Engine Board DC
Cable
Check the continuity of the cable. If
incorrect, replace the cable. If
correct, go to step 4.
Summary of Contents for Optra T522
Page 7: ...viii Service Manual Infoprint 1120 and 1125 ...
Page 9: ...x Service Manual Infoprint 1120 and 1125 Class 1 Laser Statement Label ...
Page 23: ...xxiv Service Manual Infoprint 1120 and 1125 ...
Page 161: ...3 30 Service Manual Infoprint 1120 and 1125 ...
Page 223: ...5 2 Service Manual Infoprint 1120 and 1125 ...
Page 230: ...Connector Locations 5 9 Infoprint 1120 and 1125 Engine Board ...
Page 231: ...5 10 Service Manual Infoprint 1120 and 1125 Controller Board Non Network ...
Page 232: ...Connector Locations 5 11 Infoprint 1120 and 1125 Controller Board Network ...
Page 234: ...Connector Locations 5 13 Infoprint 1120 and 1125 ...
Page 236: ...Connector Locations 5 15 Infoprint 1120 and 1125 210 220 001 002 ...
Page 238: ...Connector Locations 5 17 Infoprint 1120 and 1125 ...
Page 241: ...5 20 Service Manual Infoprint 1120 and 1125 ...
Page 245: ...7 2 Service Manual Infoprint 1120 and 1125 Assembly 1 Covers ...
Page 247: ...7 4 Service Manual Infoprint 1120 and 1125 Assembly 2 Frame ...
Page 249: ...7 6 Service Manual Infoprint 1120 and 1125 Assembly 2 Frame continued ...
Page 251: ...7 8 Service Manual Infoprint 1120 and 1125 Assembly 3 Printhead ...
Page 253: ...7 10 Service Manual Infoprint 1120 and 1125 Assembly 4 Paper Feed Autocompensator ...
Page 255: ...7 12 Service Manual Infoprint 1120 and 1125 Assembly 5 Paper Feed Multipurpose Unit ...
Page 257: ...7 14 Service Manual Infoprint 1120 and 1125 Assembly 6 Paper Feed Alignment ...
Page 259: ...7 16 Service Manual Infoprint 1120 and 1125 Assembly 7 Paper Feed Output ...
Page 261: ...7 18 Service Manual Infoprint 1120 and 1125 Assembly 8 Integrated Paper Tray 500 Sheet ...
Page 263: ...7 20 Service Manual Infoprint 1120 and 1125 Assembly 9 Main Drive ...
Page 265: ...7 22 Service Manual Infoprint 1120 and 1125 Assembly 10 Developer Drive ...
Page 267: ...7 24 Service Manual Infoprint 1120 and 1125 Assembly 11 Hot Roll Fuser ...
Page 269: ...7 26 Service Manual Infoprint 1120 and 1125 Assembly 12 Transfer ...
Page 271: ...7 28 Service Manual Infoprint 1120 and 1125 Assembly 13 Charging ...
Page 273: ...7 30 Service Manual Infoprint 1120 and 1125 Assembly 14 Electronics 1 ...
Page 275: ...7 32 Service Manual Infoprint 1120 and 1125 Assembly 14 Electronics I continued ...
Page 277: ...7 34 Service Manual Infoprint 1120 and 1125 Assembly 15 Electronics II ...
Page 279: ...7 36 Service Manual Infoprint 1120 and 1125 Assembly 16 Electronics III ...
Page 281: ...7 38 Service Manual Infoprint 1120 and 1125 Assembly 17 Electronics IV ...
Page 283: ...7 40 Service Manual Infoprint 1120 and 1125 Assembly 18 Electronics V ...
Page 285: ...7 42 Service Manual Infoprint 1120 and 1125 Assembly 19 Electronics VI ...
Page 287: ...7 44 Service Manual Infoprint 1120 and 1125 Assembly 20 250 Sheet Tray ...
Page 289: ...7 46 Service Manual Infoprint 1120 and 1125 Assembly 20 250 Sheet Tray continued ...
Page 291: ...7 48 Service Manual Infoprint 1120 and 1125 Assembly 21 Integrated Paper Tray 250 Sheet ...
Page 293: ...7 50 Service Manual Infoprint 1120 and 1125 Assembly 22 500 Sheet Tray ...
Page 295: ...7 52 Service Manual Infoprint 1120 and 1125 Assembly 22 500 Sheet Tray continued ...
Page 297: ...7 54 Service Manual Infoprint 1120 and 1125 Assembly 23 Duplex Unit ...
Page 299: ...7 56 Service Manual Infoprint 1120 and 1125 Assembly 23 Duplex Unit continued ...
Page 301: ...7 58 Service Manual Infoprint 1120 and 1125 Assembly 23 Duplex Unit continued ...
Page 303: ...7 60 Service Manual Infoprint 1120 and 1125 Assembly 24 Envelope Feeder ...
Page 305: ...7 62 Service Manual Infoprint 1120 and 1125 Assembly 25 High Capacity Feeder ...
Page 307: ...7 64 Service Manual Infoprint 1120 and 1125 Assembly 25 High Capacity Feeder continued ...
Page 309: ...7 66 Service Manual Infoprint 1120 and 1125 Assembly 25 High Capacity Feeder continued ...
Page 311: ...7 68 Service Manual Infoprint 1120 and 1125 Assembly 25 High Capacity Feeder continued ...
Page 313: ...7 70 Service Manual Infoprint 1120 and 1125 Assembly 25 High Capacity Feeder continued ...
Page 315: ...7 72 Service Manual Infoprint 1120 and 1125 Assembly 26 Kiosk Vertical Paper Adapter ...
Page 317: ...7 74 Service Manual Infoprint 1120 and 1125 Assembly 27 Kiosk Horizontal Paper Adapter ...
Page 323: ...7 80 Service Manual Infoprint 1120 and 1125 ...
Page 333: ...I 10 Service Manual Infoprint 1120 and 1125 ...