
4511-xxx
2-46
Service Manual
NVRAM failure
Error codes 950–954 indicate a problem in the NVRAM (nonvolatile random
access memory). Replace the operator panel assembly. Codes 955–959
indicate a failed controller card assembly. Replace the controller card.
Note: NVRAM is on the operator panel printed circuit board while secure
NVRAM is on the controller card. Check margin alignments after
replacing the operator panel assembly. See
“Printhead service
check” on page 2-111
for more information. If margin errors are
unacceptable, corrections can only be made through software.
Contact the next level of support.
Service tertiary error codes—NVRAM failure
Lights
Service
secondary
codes—
95x
Service teriary codes—NVRAM failure
9
50—
Se
cur
e
EEPR
OM d
a
ta
d
oes not
m
at
c
h
NVRAM
9
51—
Se
cur
e
EEPR
OM f
a
ilu
re
9
52—
NVRAM CRC
fa
ilu
re
9
54—
NVRAM
c
h
ip
f
a
ilu
re
9
55—
Co
de RO
M
o
r
NAND f
a
iled CRC
Continue
✷
Ready
✷
✷
✷
✷
✷
Toner Low/
Replace PC
Kit
Load Paper
✷
✷
✷
Paper Jam
✷
Error
✷
✷
✷
Summary of Contents for E238
Page 14: ...4511 xxx xiii Service Manual Japanese Laser Notice Chinese Laser Notice ...
Page 15: ...4511 xxx Laser notices xiv Korean Laser Notice ...
Page 16: ...4511 xxx xv Service Manual ...
Page 21: ...Safety information xx 4511 xxx ...
Page 32: ...1 10 Service Manual 4511 xxx ...
Page 144: ...4511 xxx 2 112 Service Manual ...
Page 147: ...4511 xxx Diagnostic aids E238 E240 and E240n 3 3 Configuration Menu printout sample ...
Page 148: ...4511 xxx 3 4 Service Manual Diagnostics mode printout sample ...
Page 178: ...4511 xxx 3 34 Service Manual ...
Page 230: ...4511 xxx 4 52 Service Manual ...
Page 238: ...4511 xxx 6 2 Service Manual ...
Page 240: ...7 2 Service Manual 4511 xxx Assembly 1 Covers ...
Page 242: ...7 4 Service Manual 4511 xxx Assembly 2 Electronics ...
Page 244: ...7 6 Service Manual 4511 xxx Assembly 3 Frame ...
Page 248: ...7 10 Service Manual 4511 xxx ...
Page 258: ...4511 xxx I 10 Service Manual ...