Lexmark Optra S 1620 Manual

Diagnostic Information2-94
4059-XXX
Print Quality - Random Marks
Service Tip: The primary cause of random marks is due to loose
material moving around inside the printer and attaching to the
photoconductor, charge roll or transfer roll.
Print Quality - Blurred or Fuzzy Print
Blurred of fuzzy print is usually caused by a problem in the main
drive gearbox assembly, alignment assembly, any feed roller or in
the transfer roll bearings or transfer roll. Check the gearbox
assembly for correct operation. Check...

2-954059 Service Manual
4059-XXX
Print Quality - Evenly spaced horizontal lines or marks
FRU Action
1 Lines spaced 3.19 mm
(.126 inch) apartThiscanbecausedbythemotor
pinion gear on the main drive motor.
Replace the main drive motor.
2 Lines spaced 22.32 mm
(.882 inch) apart
Lines spaced 28.7 mm
(1.130 inch) apart
Lines spaced 47.83 mm
(1.883 inch) apart
Lines spaced 63.77 mm
(2.511 inch) apartThiscanbecausedbyadefective
gear in the main drive gearbox
assembly. Replace the main drive
gearbox assembly.
3...

Diagnostic Information2-96
4059-XXX
Print Quality - Background
Service Tip: Some background problems can be caused by rough
papers or non-Lexmark toner cartridges. If the rough paper mode is
on, turn it off and run the print test.
Some slick or coated papers may also cause background. Some
problems occur with printers that run a large amount of graphics in a
humid environment. The customer may try to improve the print
quality by increasing the transfer setting.
7 Lines spaced 49.74 mm
(1.958 inch)...

2-974059 Service Manual
4059-XXX
FRU Action
1 Erase Lamp/Lens
AssemblyCheck the erase lamp lens for any
signs of toner, paper dust or other
types of contamination. Clean the
lens with a soft dry cloth if
necessary. If unable to clean the
contamination off the lens, replace
the lens and lamp assembly. Check
the erase lamp assembly. Use the
same procedure as outlined in the
“Erase Lamp Service Check” on
page 2-46.
2 Printhead The printhead on the Optra S
printers cannot be cleaned. Try
another printhead if...

Diagnostic Information2-98
4059-XXX
5EngineBoardHVPS
ConnectorCheck the following voltages at J10
on the engine board. Measure the
voltages from J10 to printer ground.
Printer Idle
J10-1 approximately 0 V dc
J10-2 approximately 4 V dc
J10-4 approximately 0 V dc
Printer Printing
J10-1 varies 0 V dc to +5 V dc
J10-2 varies 0 V dc to +4 V dc
J10-4varies0Vdcto+1.9Vdc
If J10-1 voltage is incorrect, check
the continuity of the front harness
cable (J10-1 line). If there is no
continuity, replace the harness...

2-994059 Service Manual
4059-XXX
Print Quality - Banding
Service Tip: Banding is difficult to detect except on a page with a
uniform gray or a large amount of graphics printed on the page.
Banding is primarily due to a variation in the speed of the paper as it
feeds thru the printer, especially in the development and transfer
process. Inspect the alignment assembly, main drive assembly and
all other paper feed components for signs of wear, dirt, binds, or
damage, especially the drive gears. Banding...

Diagnostic Information2-100
4059-XXX
Print Quality - Residual Image
Service Tip: Install a new print cartridge if available before doing this
service check. Residual image can be caused by the
photoconductor, cleaning blade and other parts inside the print
cartridge. Residual image on model 3455 can also be caused by the
charge brush contact.
2 Charge Roll Assembly
Charge Roll Link ArmCheck the charge roll for any signs
of toner buildup or other
contamination on the outer edges
that correspond to the...

2-1014059 Service Manual
4059-XXX
Print Quality - Light Print
FRU Action
1 Erase Lamp Assembly Check the erase lamp lens assembly
for any signs of paper dust, toner
buildup or any other contamination.
Cleanwithasoftclothorreplacethe
lens and lamp assembly which are
provided together in a kit. If the lens
is clean then check the erase lamp
assembly for failed erase lamps. If
defective, replace the erase lamp
assembly.
2 Fuser Assembly Check the fuser assembly for signs
of toner contamination. The hot...

Diagnostic Information2-102
4059-XXX
Print Quality - Toner on backside of printed page
Service Tip: This is generally caused by loose toner in the machine
in the paper path being carried through the printer on the backside of
the paper.
Smart Cartridge Service Check
Note:If you are unable to clear a “32-Unsupported Cartridge” User
Error Message, make sure an Optra Se print cartridge is correctly
installed in the printer. The cartridge is easily identified by the smart
chip located on the top right side...

2-1034059 Service Manual
4059-XXX
Service Tip: An intermittent “32-Unsupported Cartridge” User Error
Message can be caused by poor contact between the smart
cartridge contacts in the upper front cover and the smart chip. Also
check for proper seating of the smart cartridge cable to the engine
board.
FRU Action
1 Smart Cartridge Contact
Smart Cartridge Ground
ContactCheck both contacts to make sure
they are properly installed and the
two contacts are not touching each
other. Check both contacts for any...