Lexmark Optra S 1620 Manual
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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 the transfer roll for binds or a contaminated shaft or bearings. Blurred print can also be caused by incorrect feeding from one of the input paper sources, paper trays, duplex or envelope feeder. Check the high voltage contacts to ensure they are not bent, corroded or damaged. Replace as necessary. Symptom Action 1 Random Marks Check the print cartridge for any signs of loose or foreign material that might be on the photoconductor. Check the transfer roll and charge roll for any pieces of material that are stuck to the rolls.
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 Lines spaced 38.26 mm (1.506 inch) apartThiscanbecausedbydefective gear(s) in the main drive gearbox. Replace the FRUs in the following order: main drive gearbox reference edge 4 Lines spaced 44.64 mm (1.757 inch) apartReplace the FRUs in the following order: developer drive assembly main drive gearbox assembly 5 Lines spaced 47.19 mm (1.858 inch) apartReplace the FRUs in the following order: toner cartridge charge roll developer drive assembly 6 Lines spaced 49.16 mm (1.935 inch) apartReplace the toner cartridge.
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) apartReplace the FRUs in the following order: redrive assembly fuser assembly 8 Lines spaced 51.02 mm (2.009 inch) apartReplace the transfer roll. 9 Lines spaced 52.23 mm (2.056 inch) apartReplace the redrive assembly. 10 Lines spaced 76.53 mm (3.013 inch) apartReplace the FRUs in the following order: alignment assembly main drive gearbox assembly 11 Lines spaced 95.66 mm (3.766 inch) apartReplace the FRUs in the following order: toner cartridge main drive gearbox assembly 12 Lines spaced 99.49 mm (3.917 inch) apartReplace the redrive assembly. 13 Lines spaced 114.79 mm (4.519 inch) apartReplace the alignment assembly. FRU Action
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 all other attempts fail to correct a background problem. 3 Transfer Roll Assembly Check the high voltage contact from the HVPS to the transfer roll. Check the transfer arm assembly right side bearing for any signs of contamination, pitting or a loose cable to the bearing. If any problems are found, replace the defective part. Check the transfer roll shaft for any signs of contamination, wear or pitting on the ends of the shaft that go into the bearings. If a problem is found, clean the ends of the shaft or replace the transfer roll assembly. 4 High Voltage Contacts Check the high voltage contacts on the right side frame to ensure they are clean and not bent, deformed, or pitted. If incorrect, replace the contact.
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 cable. If there is continuity, replace the HVPS. If this does not correct the problem, replace the engine board. If J10-2 voltage is incorrect or if the voltage remains at 0 V dc, check the continuity of the front harness cable (J10-2 line). If there is no continuity, replace the harness cable. If there is continuity, replace the HVPS. If this does not correct the problem, replace the engine board. If J10-4 voltage is incorrect, check the front harness cable (J10-3 line). If there is not continuity, replace the harness cable. If correct, replace the engine board. if this does not correct the problem, replace the HVPS. FRU Action
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 appears as light or dark horizontal lines on a uniformly gray page. Banding on model 3455 can also be caused by a defective charge roll brush contact or HVPS. Check the charge roll contact for any signs of damage and for proper connection to the HVPS and print cartridge. Print Quality - Black bands on outer edges of the page This print quality problem appears as vertical black bands on one or both sides of the copy and can be wide, narrow, light or dark. FRU Action 1 Charge Roll Counterbalance SpringsIf the problem is just on one side of the page, check the charge roll counterbalance spring on that side. You can check to see if enough force is being applied to the charge roll by applying a slight downward pressure with your finger to the charge roll link arm that the spring is attached to while you run a print test sample. See if the problem changes or goes away. If this fixes or changes the problem, then check the springs and charge roll link arm assemblies for binds or defective parts. Replace as necessary.
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 bands on the page. Check the charge links and arms for proper operation, binds or incorrectly mounted counterbalance springs. Repair or replace as necessary. 3 HVPS Check the following voltages at J10-8 on the engine board: Printer Idle J10-8 measures 0 V dc Printer Printing Test Page J10-8 voltage changes from 0 V dc to +4 V dc If the voltage does not vary, check the continuity of line J10-8 in the front cable harness. If there is no continuity, replace the cable harness. If there is continuity, replace the HVPS. If this does not correct the problem, replace the engine board. Turn the printer Off and check the resistance between J10-7 and printer ground. The resistance measures approximately 0 ohms. If incorrect, make sure the engine board is mounted correctly and securely grounded. If correct, replace the engine board. FRU Action
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 roll especially might cause toner to be retained and deposited on the page. FRU Action 1 Transfer Roll Check the right end of the transfer roll shaft for signs of wear or contamination. If incorrect, replace the transfer roll. 2 Right Side Transfer Roll Arm AssemblyCheck the right side transfer roll arm assembly bearing for any signs of wear or contamination. Also check to ensure the transfer cable is firmly attached to the bearing. If incorrect, replace the right side transfer arm assembly. Check the connection of the transfer roll assembly cable to the transformer on the HVPS board. Check the continuity of the cable from the bearing to the spade terminal on the cable. If incorrect, replace the right side transfer arm assembly. If correct, replace the HVPS.
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 of the cartridge. Install another Optra Se cartridge before attempting to troubleshoot the printer. Check to make sure the smart cable is properly connected to J21 on the engine board. Check the print cartridge for any signs of damage or improper installation of the smart chip. Also check to make sure there is proper contact between the smart chip and the smart cartridge contacts. FRU Action 1 Fuser Assembly Toner is being carried out on the backside of the media. This problem is generally caused by a toner buildup on the fuser hotroll or backup roll. Check the fuser hotroll and backup roll for any noticeable buildup of toner. Repair as necessary. 2 Transfer Roll Transfer Plate AssemblyCheck the transfer roll for any signs of toner buildup or loose toner around the area of the transfer plate assembly. Clean the area and run another copy. If the problem continues, replace the FRUs in the following order: HVPS engine board
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 signs of being bent, worn or broken. If incorrect replace both contacts. 2 Smart Cartridge Cover Check to make sure that the smart cartridge cover is properly snapped into place and is not damaged or broken. Replace as necessary. 3 Smart Cartridge Plunger Check the plunger for correct installation and any signs of being damaged or broken. Correct any problem found or replace the plunger as necessary. 4 Smart Cartridge Cable Engine BoardCheck the voltage on the smart cartridge contact. The voltage measures approximately +5 V dc when not writing data to the engine board. If data is being written, the voltage measures approximately +12 V dc. If incorrect, disconnect the cable from J21 on the engine board and check the voltage on J21-1. The voltage measures approximately +5 V dc. If incorrect, replace the engine board. If correct, replace the smart cartridge cable.