Lexmark C950 Service Manual

Diagnostic information 2-51
5058-030
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121.12 Fuser failure
121.13 Fuser thermostat failure
126.01 Fuser driver interface failure
Step Action and questions Yes No
1 POR the machine.
Does the error continue?
Go to step 2. Problem resolved
2
Replace the fuser assembly. Go
to “Fuser assembly removal”
on page 4-78.
Does the error continue?
Replace the fuser drive PCBA.
Go to “Fuser driver PCBA
removal” on page 4-84.
Does the error continue?
Problem resolved
Step Action and questions Yes No
1 Check the fuser assembly.
Is the above component
properly connected?
Go to step 2. Remove foreign particles, and
replace the connections.
2
Replace the fuser assembly. Go
to “Fuser assembly removal”
on page 4-78.
Does the error remain?
Go to step 3. Problem resolved
3
POR the machine.
Does the error continue?
Replace the upper printer engine
PCBA.
Go to “Upper printer engine
PCBA removal” on page 4-181.
Problem resolved
Step Action and questions Yes No
1 Check the fuser driver PCBA.
Is the above component
properly connected?
Go to step 2. Replace the connections.
2
Replace the fuser driver PCBA.
Go to
“Fuser driver PCBA
removal” on page 4-84.
Does the error remain?
Go to step 3. Problem resolved
3
POR the machine.
Does the error continue?
Replace the upper printer engine
PCBA.
Go to “Upper printer engine
PCBA removal” on page 4-181.
Problem resolved

Lexmark C950 Specifications

General

Print Resolution	1200 x 1200 dpi
Duplex Printing	Yes
Processor Speed	1.2 GHz
Connectivity	Ethernet, USB
Print Technology	Laser
Print Speed	50 ppm
Monthly Duty Cycle	300000 pages
Recommended Monthly Page Volume	5, 000 - 33, 000 pages
Memory	1024 MB
Hard Drive	Optional
Output Capacity	500 sheets
Interface	USB 2.0
Media Type	Plain paper, Card stock, Labels, Envelopes, Transparencies
Total Media Capacity	5140 sheets
Media Sizes	Letter, Legal, A4, A5, Executive, Folio, Statement
Operating Systems Supported	Windows, Mac, Linux