127
UF-5500 / 4500
11.2.2. Simplified Troubleshooting Guide
11.2.2.1. Printing
No.
Symptom
Cause
Countermeasure
1
Failed drum cartridge
Replace drum cartridge
Failed transfer unit
Check the transfer roller and spring
Failed the high-voltage terminal
Check the high-voltage terminal
Failed the high voltage power supply board
Failed fuser unit
Check the heat roller and the pressurized roller and the spring
and the heat lamp and the thermistor
Too thick or too thin recording paper
Use the recording paper from 16lb to 24lb
2
Dirty the cover glass or the reflecting mirror
Clean the cover glass and the reflecting mirror
Dust on the path of the laser beam
Clean the path of the laser beam
Failed drum cartridge
Replace drum cartridge
Failed the heat roller or the pressurized roller
Check the heat roller and the pressurized roller
Failed LSU
Go to
LSU (Laser Scanning Unit) Section
3
Failed drum cartridge
Replace drum cartridge
Failed the gear
Check the gear
Failed the engine motor
Go to
Failed the high-voltage terminal
Check the high-voltage terminal
Failed the high voltage power supply board
Scratch on the OPC drum
Replace drum cartridge
Static electricity on the documents (when copy-
ing)
Check the connection between the parts around CIS and
“ground”, “earth”
4
Dirty or Half Darkness
Background
Failed drum cartridge
Replace drum cartridge
Dirty the pickup roller and the regist roller and
the feed roller and the eject roller and the heat
roller and the pressure roller
Clean the pickup roller and the regist roller and the feed roller
and the eject roller and the heat roller and the pressure roller
Failed the high-voltage terminal
Check the high-voltage terminal
Failed the high voltage power supply board
Dirty the recording paper path
Clean the recording paper path
5
Failed drum cartridge
Replace drum cartridge
Failed LSU
Go to
LSU (Laser Scanning Unit) Section
Failed the high-voltage terminal
Check the high-voltage terminal
Failed the high voltage power supply board
Failed the main board
Failed CIS (when copying)
6
OR
Short toner
Supply toner
Failed drum cartridge
Replace drum cartridge
Life of drum cartridge is over
Replace drum cartridge
Dirty the cover glass or the reflecting mirror
Clean the cover glass and the reflecting mirror
Failed the high-voltage terminal
Check the high-voltage terminal
Failed the high voltage power supply board
Failed the main board
Failed CIS (when copying)
7
Failed the developer roller (32mm pitch)
Replace drum cartridge
Failed the OPC drum (75mm pitch)
Replace drum cartridge
Failed the heat roller (79mm pitch)
Check the heat roller
Failed the high voltage power supply board
Too thick or too thin recording paper
Use the recording paper from 16lb to 24lb
Содержание UF-4500
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Страница 248: ...248 UF 5500 4500 13 5 Test Chart 13 5 1 ITU T No 1 Test Chart ...
Страница 249: ...249 UF 5500 4500 13 5 2 ITU T No 2 Test Chart ...
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Страница 287: ...287 UF 5500 4500 130 131 132 133 134 135 136 137 138 139 140 141 PCB2 A UF 5500 only CN1 ...
Страница 289: ...289 UF 5500 4500 PCB8 PCB4 160 161 163 162 164 167 168 171 177 178 172 173 174 173 176 169 170 162 164 A A 165 ...
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Страница 309: ...309 UF 5500 4500 A1 A3 A4 A6 A7 A8 A9 A10 P1 P2 P3 P4 P5 P6 P7 P8 P7 Drum Cartridge Toner Cartridge P9 A11 ...
Страница 311: ...311 UF 5500 4500 501 502 503 504 506 507 505 508 509 511 510 514 513 512 P51 P53 P54 A51 P52 ...
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