Lexmark C935 Series, Service Manual

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6-2
Printer Service Manual
5057-XXX
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Lubrication specifications
Lubricate only when parts are replaced or as needed, not on a scheduled basis. Use of lubricants other than
those specified can cause premature failure. Some unauthorized lubricants may chemically attack
polycarbonate parts. Use IBM no. 10 oil, P/N 1280443 (Approved equivalents: Mobil DTE27, Shell Tellus 100,
Fuchs Renolin MR30), IBM no. 23 grease (Approved equivalent Shell Darina 1), and grease, P/N 99A0394 to
lubricate appropriate areas.
Scheduled maintenance
The LCD displays
80 scheduled maintenance
at each 100K and 600K page count interval. It is necessary to
replace the appropriate maintenance kit at this interval to maintain the print quality and reliability of the printer.
The parts are available as a maintenance kit with the following part numbers:
40X4031—100K Maintenance Kit, 110 V
40X4093—100K Maintenance Kit, 220 V
40X4032—600K Maintenance Kit, 110 & 220 V
The ADF requires scheduled maintenance at each 150K page count interval. It is necessary to replace the feed/
pick roll assembly and the separation guide assembly at this interval to maintain ADF media feed reliability. The
parts are available as a maintenance kit with the following part number:
DEVELOPER UNITS Transfer
Developer unit (4) Replace
C developer carrier Replace
M developer carrier Replace
Y developer carrier Replace
K developer carrier Replace
TRANSFER ROLL
2nd Transfer Roll assembly Inspect Replace
TRANSFER BELT UNIT
Transfer belt unit assembly Inspect Replace Damp cloth
Transfer belt cleaning assembly Replace
FUSER UNIT
Fuser Unit Inspect Replace
Sensor (fuser exit) Clean Blower brush
DUPLEX
Duplex Media Transport Roll (2) Clean Water or alcohol
LEXMARK C935
EVERY
SERVICE
CALL
EVERY
100K EVERY
600K
NOTE: