Diagnostic information
2-87
Fuser service checks
920.xx—Cold fuser service check
Error codes 920.x and 922.xx may display for a cold fuser failure.
Some 920.xx error codes may be cleared by turning the printer on and off and allowing it to complete POR.
CAUTION:
There is a danger from hazardous voltage in the area of the printer where you are
working. Unplug the printer before you begin, or use caution if the printer must receive power in
order to perform the task.
Service tip: Some 920.xx errors can be caused by multiple sheets of paper being fed up to the fuser.
Service tip: Set the Fuser Temperature to NORMAL before starting this service check. In Diagnostics mode,
select
EP SETUP
, and
Fuser Temp
.
Service tip: It may take several minutes for the error codes 920.xx and 922.xx to be displayed after the printer is
turned on.
FRU
Action
1
Fuser lamp
Fuser lamp AC cable
Observe the lamp through the left near side of the printer. It may be
necessary to remove the redrive assembly to observe the lamp
turning on and off. If the lamp does not come on do the following:
• If not previously removed, remove the redrive assembly. See
“Redrive assembly removal” on page 4-74
.
• Remove the fuser assembly. See
“Fuser assembly removal” on
page 4-26
.
• Make sure the correct type of lamp is installed (voltage and
wattage).
• Verify that the fuser to fuser lamp cable is installed correctly to the
fuser top cover assembly. If incorrect, install correctly; if correct,
go to step 2.
2
AC line voltage
CAUTION
: When taking measurements for AC power, observe all
safety precautions.
Check the AC line voltage to make sure it is within operating
specification. If incorrect, inform the customer; if correct, go to step 3.
3
LVPS
CAUTION
: When taking measurements for AC power, observe all
safety precautions.
Unplug the AC line cord from the printer and pull the LVPS out far
enough to access CN1 on the LVPS board (see
“Low voltage power
supply removal” on page 4-54
). Disconnect the LVPS to fuser AC
cable, plug in the line cord, turn the printer on and measure the
voltage between CN1-1 and CN1-3 on the connector (see the
connector locations at
“Low voltage power supply” on page 5-10
).
If incorrect, replace the LVPS assembly (see
“Low voltage power
supply removal” on page 4-54
); if correct, go to step 4.
4
Fuser lamp
Fuser top cover assembly
Fuser connect cable (fuser
to fuser lamp cable)
Check continuity of the fuser to fuser AC cable, fuser top cover
assembly, and fuser lamp by checking the continuity between the two
pins on the fuser lamp AC cable connector:
• If there is continuity, go to step 5.
• If there is no continuity, check the continuity of the fuser to fuser
lamp AC cable. If incorrect, replace the lamp, if incorrect, replace
the fuser top cover assembly.
Note:
If the fuser lamp is replaced, allow the fuser assembly to cool
or a 925.xx error may be displayed.
Summary of Contents for e-STUDIO500P
Page 1: ...PRINTER P N 12G9609 e STUDIO500P ...
Page 10: ...x Service Manual ...
Page 15: ...Laser notices xv Japanese Laser Notice ...
Page 16: ...xvi Service Manual Korean Laser Notice ...
Page 43: ...Diagnostic information 2 7 ...
Page 159: ...Diagnostic information 2 123 ...
Page 160: ...2 124 Service Manual ...
Page 161: ...Diagnostic information 2 125 ...
Page 181: ...Diagnostic aids 3 17 ...
Page 297: ...5 12 Service Manual ...
Page 298: ...Connector locations and connections 5 13 ...
Page 299: ...5 14 Service Manual ...
Page 301: ...6 2 Service Manual ...
Page 303: ...7 2 Service Manual Assembly 1 Covers ...
Page 305: ...7 4 Service Manual Assembly 2 Frame 1 ...
Page 307: ...7 6 Service Manual Assembly 3 Frame 2 ...
Page 309: ...7 8 Service Manual Assembly 4 Frame 3 ...
Page 311: ...7 10 Service Manual Assembly 5 Printhead ...
Page 313: ...7 12 Service Manual Assembly 6 Paper feed autocompensator ...
Page 315: ...7 14 Service Manual 4061 xx0 Assembly 7 Paper feed multipurpose feeder ...
Page 317: ...7 16 Service Manual Assembly 8 Paper feed alignment ...
Page 319: ...Page 7 19 has been removed from this document intentionally 7 18 Service Manual ...
Page 320: ...7 20 Service Manual Assembly 10 Integrated 500 sheet paper tray ...
Page 322: ...7 22 Service Manual Assembly 11 Drives Main drive and developer drive ...
Page 324: ...7 24 Service Manual Assembly 12 Hot roll fuser ...
Page 326: ...7 26 Service Manual Assembly 13 Transfer charging ...
Page 328: ...7 28 Service Manual Assembly 14 Electronics power supplies ...
Page 330: ...7 30 Service Manual Note ...
Page 332: ...7 32 Service Manual Assembly 16 Electronics shields ...
Page 336: ...7 36 Service Manual Assembly 19 Cabling diagrams 3 ...
Page 338: ...7 38 Service Manual Assembly 20 Cabling diagrams 4 ...
Page 340: ...7 40 Service Manual Assembly 21 Cabling diagrams 5 ...
Page 342: ...7 42 S ervice Manual THE FOLLOWING PAGE 7 43 HAS BEEN OMITTED FROM THIS MANUAL INTENTIONALLY ...
Page 347: ...7 48 S ervice Manual Pages 7 49 through 7 57 of this manual have been omitted intentionally ...
Page 348: ...7 58 Service Manual Assembly 35 High capacity feeder 1 ...
Page 350: ...7 60 Service Manual Assembly 36 High capacity feeder 2 ...
Page 354: ...7 64 S ervice Manual Pages 7 65 thru 7 70 ofthis manual were omitted intentionally ...
Page 362: ...I 8 Service Manual ...
Page 370: ...I 16 Service Manual ...