Page: 73
Service Guide OF2200/2400/2600
Chapter 2 Failure Analysis
RAP 20E Printer Alarm 4
START
"PRINTER ALARM 4" appears on the LCD display.
Power OFF, then power ON.
After a short delay, does "PRINTER ALARM 4" appear on the LCD display?
YES Remove the fuser assembly for testing (Refer to the Action Items Diagram).
Check the resistance between the thermistor contacts. At room temperature,
it should read approximately 200 Kohms.
Is the resistance correct?
NO Replace the fusing unit.
YES Does the thermistor contact correctly touch the contact assembly when the
fusing unit is installed? (Refer to the Action Items Diagram)
NO Adjust the contacts as necessary.
YES
Refer to Action Item 9.
Replace the printer control board.
NO Does PRINTER ALARM 4 occur approximately 60 seconds after powering ON the unit?
YES Is the heater lamp of the fusing unit ON? To check, remove the stacker cover.
Overide the cover interlock. Light can be seen from the ends of the fuser
when the heater
lamp is ON.
NO Is the heater or thermistor open? Measure the resistance between the two
heater contacts. Normal resistance is approximately 0 ohms.
YES Replace the fusing unit.
NO Is the AC voltage from the fuser present at the contact assembly?
NO Replace the printer control board. If the problem persists,
replace the power supply board.
YES Replace the fusing unit.
NO
Refer to Action Item 9.
Summary of Contents for OF2600
Page 87: ...Partner Exchange BPX for any updates to this material http bpx okidata com...
Page 255: ...Page 151 Service Guide OF2200 2400 2600 Chapter A Board Diagrams A 2 INDEX TO CHARTS...
Page 256: ......
Page 259: ......
Page 262: ......
Page 265: ......
Page 268: ......
Page 273: ......
Page 276: ......
Page 279: ......
Page 284: ...Partner Exchange BPX for any updates to this material http bpx okidata com...
Page 285: ...Page 162 Service Guide OF2200 2400 2600 Chapter A Board Diagrams Okifax 2200 1 of 5...
Page 286: ......
Page 288: ...Page 163 Service Guide OF2200 2400 2600 Chapter A Board Diagrams Okifax 2200 2 of 5...
Page 289: ......
Page 291: ...Page 164 Service Guide OF2200 2400 2600 Chapter A Board Diagrams Okifax 2200 3 of 5...
Page 292: ......
Page 297: ......
Page 299: ...Page 168 Service Guide OF2200 2400 2600 Chapter A Board Diagrams Okifax 2400 2600 2 of 6...
Page 300: ......
Page 302: ...Page 169 Service Guide OF2200 2400 2600 Chapter A Board Diagrams Okifax 2400 2600 3 of 6...
Page 303: ......
Page 307: ...Page 172 Service Guide OF2200 2400 2600 Chapter A Board Diagrams Okifax 2400 2600 6 of 6...
Page 308: ......
Page 317: ......
Page 320: ......
Page 323: ......
Page 326: ......
Page 329: ......
Page 333: ......
Page 337: ......
Page 340: ......
Page 344: ......
Page 348: ......
Page 352: ......
Page 355: ......
Page 359: ......
Page 363: ......
Page 367: ......
Page 371: ......
Page 374: ......
Page 380: ......
Page 387: ...Page 199 Service Guide OF2200 2400 2600 Chapter B Illustrated Parts...
Page 389: ...Page 200 Service Guide OF2200 2400 2600 Chapter B Illustrated Parts...
Page 391: ...Page 201 Service Guide OF2200 2400 2600 Chapter B Illustrated Parts...
Page 395: ...Page 202 Service Guide OF2200 2400 2600 Chapter B Illustrated Parts UST500...