Lexmark Optra S 1620 Manual

							Preventive Maintenance6-1
4059-XXX
6.Preventive Maintenance
This chapter describes procedures for printer preventive mainte-
nance. Following these recommendations can help prevent prob-
lems and maintain optimum performance.
Safety Inspection Guide
The purpose of this inspection guide is to aid you in identifying
unsafe conditions.
If any unsafe conditions exist, find out how serious the hazard could
be and if you can continue before you correct the hazard.
Check the following items:
•Damaged, missing, or altered parts, especially in the area of the
On/Off switch and the power supply
•Damaged, missing, or altered covers, especially in the area of
the top cover and the power supply cover
•Possible safety exposure from any non-Lexmark attachments
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 1329301 to lubricate appropriate
areas of the machine. 
						

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Scheduled Maintenance (2420/2450/2455/3455)
The operator panel displays the message “80 Scheduled
Maintenance” at each 250K page count interval. It is necessary to
replace the fuser assembly, transfer roller, compensator pick-rolls
and charge roll 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:
99A0290 - 100V/750W 2450
99A0500 - 115V/750W 2420/2450/2455
99A0503 - 220V/750W 2420/2450/2455
99A0823 - 115V/750W 3455
99A0824 - 220V/750W 3455
After replacing the kit, the maintenance count must be reset to zero
to clear the “80 Scheduled Maintenance” message. Refer to
“Maintenance Page Count (2420/2450/2455/3455)” on page 3-20. 
						

							Parts Catalog7-1
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7.Parts Catalog
How To Use This Parts Catalog
•
SIMILAR ASSEMBLIES: If two assemblies contain a majority of
identical parts, they are shown on the same list. Common parts
are shown by one index number. Parts peculiar to one or the
other of the assemblies are listed separately and identified by
description.
•AR: (As Required) in the Units column indicates that the
quantity is not the same for all machines.
•CC: (Color Code) in the Description column indicates the part is
identified by a color marking on the part.
•NS: (Not Shown) in the Asm-Index column indicates that the
part is procurable but is not pictured in the illustration.
•PP: (Parts Packet) in the Description column indicates the part
is contained in a parts packet.
•INDENTURE: The indenture is marked by a series of dots
located before the parts description. The indenture indicates the
relationship of a part to the next higher assembly. For example:
INDENTURE RELATIONSHIP OF PARTS
(No dot) MAIN ASSEMBLY
(One dot) o Detail parts of a main assembly
(One dot) o Subassembly of the main assembly
(Two dot) o o Detail part of a one-dot subassembly
(Two dot) o o Subassembly of a one-dot subassembly
The Optra S laser printer is available in eleven models. The model
designations are as follows:
1250 (4059-121) 1255 (4059-125) 1620 (4059-162)
1625 (4059-165) 1650 (4059-160) 1855 (4059-185)
2420 (4059-242) 2450 (4059-240) 2455 (4059-245)
1855-C01 (4059-185) 3455 (4059-345)
The parts catalog uses the four digit model number to identify model
specific FRUs. 
						

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Assembly 1: Covers 
						

							Parts Catalog7-3
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Asm-
IndexPart
NumberUnits Description
1-1 99A0553 1 Support, Paper
1-2 99A0463 1 Spacer, Front 2450/2455/3455
1-2 99A0464 1 Spacer, Front
1620/1650/2420/1250/1255/1855/1625
1-3 99A0016 1 Cover, Fuser Wick Assembly
1-4 99A0004 1 Spring, Latch
NS 3 Screw, Right Side Cvr Mtg PP 99A0263
1-5 99A0011 1 Cover, RIght Side
1250/1620/1650/2420/1855/1625
1-5 99A0012 1 Cover, Right Side 2450/2455/3455
1-6 99A0008 1 Hinge, Upper Front Cover
1-7 99A0007 1 Label, TLI/ID/Serial No. - Blank
1-8 99A0023 1 Cover Assembly, Lower Front
1250/1255/1620/1625/1650/1855/2420
1-8 99A0020 1 Cover Assembly, Lower Front
2450/2455/3455
1-8A 99A0022 1 Cap, MPT 2450/2455/3455
1-9 99A0021 1 O-Ring, Lower Front Door
NS 5 Screw, Upper Front Cvr Mtg PP 99A0263
1-10 99A0917 1 Kit, Upper Front Cover with Labels
NS 99A0458 1 Labels, Upper Front Cover
1-11 99A0630 1 Bezel, Operator Panel, English
1-11 99A0631 1 Bezel, Operator Panel, France
1-11 99A0632 1 Bezel, Operator Panel, Italy
1-11 99A0633 1 Bezel, Operator Panel, Germany
1-11 99A0634 1 Bezel, Operator Panel, Spain
1-11 99A0535 1 Bezel, Operator Panel, Denmark
1-11 99A0536 1 Bezel, Operator Panel, Netherlands
1-11 99A0537 1 Bezel, Operator Panel, Norway
1-11 99A0538 1 Bezel, Operator Panel, Sweden
1-11 99A0539 1 Bezel, Operator Panel, Brazil/Portugal
1-11 99A0540 1 Bezel, Operator Panel, Finland
1-11 99A0541 1 Bezel, Operator Panel, Japan 
						

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Assembly 1: Covers (continued) 
						

							Parts Catalog7-5
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Asm-
IndexPart
NumberUnits Description
1-12 99A0001 1 Operator Panel Assembly
1-13 99A0009 1 Cover, Left Side
1250/1255/1620/1650/2420/1855/1625
1-13 99A0010 1 Cover, Left Side 2450/2455/3455
NS 5 Screw, Left Side Cvr Mtg PP 99A0263
1-14 99A0017 1 Door, Left Panel 1650/1855/2420
1-14 99A0019 1 Door, Left Panel 1250/1255/1620/1625
1-14 99A0018 1 Door, Left Panel 2450/2455/3455
1-15 99A0296 1 Switch, Cover Open w/Operator Panel Cable
Assembly
1-16 99A0003 1 Latch, Upper Cover
1-17 99A0013 1 Cover, Laser Assembly
NS 6 Screw, Laser Cover PP 99A0263
NS 99A0552 1 Cover Assembly, Redrive Cap
NS 99A0573 2 Nut, Front Spacer Mounting 2450/2455/3455
1-18 99A0550 1 Shield, ESD Cover Open
1-19 99A0031 1 Bracket, Cover Open Switch
1-20 99A0036 1 Spring, Cover Open Switch
1-21 2 Screws, Contact Mounting PP 99A0263
1-22 99A0814 1 Cable, Smart Cartridge 3455
1-23 99A0816 1 Contact, Smart Cartridge Ground 3455
1-24 99A0815 2 Contact, Smart Cartridge 3455
1-25 99A0817 1 Cover, Smart Cartridge Contact 3455
1-26 99A0834 1 Plunger, Overstress Smart Cartridge 3455
NS 99A0577 1 Cable Tie 
						

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Assembly 2: Frame 
						

							Parts Catalog7-7
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Asm-
IndexPart
NumberUnits Description
2-1 99A0425 1 Support, Cross Brace
2-2 99A0463 1 Spacer, Front 2450/2455/3455
2-2 99A0464 1 Spacer, Front
1250/1255/1620/1650/2420/1855/1625
2-3 99A0033 1 Duct, Left Stacker 2450/2455/3455
2-3 99A0034 1 Duct, Left Stacker
1250/1620/1650/2420/1855/1625
2-4 99A0867 1 Duct, Main Body
2-5 99A0551 1 Support, Left Lower Stacker
2-6 99A0114 1 Duct, LVPS Left Side
2-7 99A0113 1 Pan, Drip ITC
2-8 99A0045 2 Latch, Cartridge Assembly
2-9 99A0039 2 Roller, Developer Support
2-10 99A0058 4 Pad, Machine Mounting
2-11 99A0558 1 Transfer Plate Assembly
2-11 99A0828 1 Transfer Plate Assembly 3455
2-12 99A0904 1 Plate Assembly, Stacker Ground
2450/2455/3455
2-12 99A0561 1 Support, Right Stacker
1250/1255/1620/1650/2420/1855/1625
2-13 99A0111 1 Right Sideframe
2-14 99A0043 1 Track, Cartridge Guide RH
2-15 99A0049 1 Fan, Auxiliary 2420/2450/3455
2-16 1 Contact Kit PP 99A0585
3 o Contact, Doctor Blade/TAR/Developer Roll
1 o Contact, PC Drum
1 o Contact, Charge Roll
4 o Block, Contact Mounting
5 o Screw, Contact Mounting
2-16A 99A0805 1 Contact, Charge Brush 3455
2-17 99A0466 1 Sensor, Toner Cartridge Level
2-18 99A0026 1 Tray Bias Arm Assembly
2-19 99A0028 1 Spring, Tray Bias
2-20 99A0038 1 Pan, Center Assembly 
						

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Assembly 2: Frame (continued)