Lexmark Optra S 1620 Manual

Prefacexxii
4059-XXX
Preface
This manual is divided into the following chapters:
•“General Information” contains a general description of the
printer, options, and the maintenance approach used to repair it.
General environmental and safety instructions as well as
special tools and test equipment are listed in this chapter.
•“Diagnostic Information” contains a service error code table,
user status message table, user error message table, symptom
table, and service checks used to isolate failing field...

1-14059 Service Manual
4059-XXX
1.General Information
The Optra™ S Laser Printers are letter quality page printers
designed to attach to IBM-compatible PC’s and to most computer
networks.
The printer is available in eleven models.
Optra S Model
1250 (4059-121)
1255 (4059-125) 

General Information1-2
4059-XXX
Optra S Models
1620 (4059-162)
1625 (4059-165)
1650 (4059-160)
1855 (4059-185)
1855 (4059-C01) 

1-34059 Service Manual
4059-XXX
Optra S Models
2420 (4059-242)
2450 (4059-240)
2455 (4059-245)
3455 (4059-345) 

General Information1-4
4059-XXX
Options
The following options are available. Some options are not available
in every country. Contact your point of purchase for options available
in your country.
Memory options of 4MB, 8MB, 16MB and 32MB
Flash memory options of 4MB and 8MB
Integrated network options
Token-Ring
Ethernet
Tr i - P o r t
IR Adapter
IPDS
SCS
USB/Parallel Port
250 and 500-sheet paper trays of A5, letter, and legal size.
250 Sheet Special Media Tray Assembly
500/500-sheet dual trays (Models...

1-54059 Service Manual
4059-XXX
Maintenance Approach
The diagnostic information in this manual leads you to the correct
field replaceable unit (FRU) or part. Use the service error codes,
user status messages, user error messages, service checks, and
diagnostic aids to determine the printer problem and repair the
failure. After you complete the repair, perform tests as needed to
verify the repair.
Tools Required For Service
Flat-blade screwdriver
#1 Phillips screwdriver
#2 Phillips screwdriver
7.0 mm nut...

General Information1-6
4059-XXX
Acronyms
CSU Customer Setup
DRAM Dynamic Random Access Memory
EDO Enhanced Data Out
EP Electrophotographic Process
EPROM Erasable, Programmable Read-Only
Memory
ESD Electrostatic Discharge
FRU Field Replaceable Unit
GB Giga Byte
HVPS High Voltage Power Supply
LASER Light Amplification by Stimulated Emission
of Radiation
LCD Liquid Crystal Display
LED Light-Emitting Diode
LVPS Low Voltage Power Supply
MROM Masked Read Only Memory
NVRAM Nonvolatile Random Access Memory
OEM...

2-14059 Service Manual
4059-XXX
2.Diagnostic Information
Start
CAUTION:Remove power from the printer before you connect or
disconnect any cable or electronic board or assembly for personal
safety and to prevent damage to the printer. Use the hand grips on
the side of the printer. Make sure your fingers are not under the
printer when you lift or set the printer down.
Use the service error code, user status message, user error
message, symptom table, service checks, and diagnostic aids in this
chapter to...

Diagnostic Information2-2
4059-XXX
Service Error Codes
Service Error Codes are generally non-recoverable except in an
intermittent condition when you can POR the printer to temporarily
recover from the error condition.
Error Code Action
900 RIP Software Replace the controller board.
901 Engine Flash This error indicates that the flash which the engine board
code is programmed into is bad. Replace the engine
board.
902 General
Engine SoftwareThese errors indicate an unrecoverable engine software
error....

2-34059 Service Manual
4059-XXX
910 DC Pick
Motor DC Pick
Motor StallError Codes 910,911,912,913 and 914 are indications
that a Tray 1 paper feed problem has been detected. Go
to the“Input Tray(s) Option Service Check” on
page 2-58.
911 DC Pick
Motor Excessive
PWM
912 DC pick
motor below
speed
913 DC pick
motoroverspeed
914 DC pick
motor: No
encoder feedback
917 Transfer Roll Indicates a problem in the transfer roll area. Go to the
“Transfer Roll Service Check” on page 2-105.
920 Fuser Error Indicates...