User's Guide
Page 55
...; Change the Contrast setting in the Quality menu. • If you are printing on the transfer roll. You may have a printer part that is being used. page. If the problem continues, contact the Lexmark Customer Support Center at http://support.lexmark.com . shading appears on page10. Toner fog or background • Check the photoconductor kit... adjustment or replacement. Troubleshooting Solving print quality problems The information in the following table may help prevent this, do not correct the problem, call for service.
...; Change the Contrast setting in the Quality menu. • If you are printing on the transfer roll. You may have a printer part that is being used. page. If the problem continues, contact the Lexmark Customer Support Center at http://support.lexmark.com . shading appears on page10. Toner fog or background • Check the photoconductor kit... adjustment or replacement. Troubleshooting Solving print quality problems The information in the following table may help prevent this, do not correct the problem, call for service.
Service Manual
Page 3
... 2-17 Cooling fan service check 2-18 Cover interlock switch service check 2-18 Dead machine service check 2-19 Fuser service check 2-19 LVPS/HVPS service check 2-20 Main motor service check 2-20 Operator panel service check 2-21 Paper feed service checks 2-21 Parallel or USB port service check 2-23 Print quality service checks 2-24 Printhead service check 2-31 Transfer roll service check 2-31 Table of...
... 2-17 Cooling fan service check 2-18 Cover interlock switch service check 2-18 Dead machine service check 2-19 Fuser service check 2-19 LVPS/HVPS service check 2-20 Main motor service check 2-20 Operator panel service check 2-21 Paper feed service checks 2-21 Parallel or USB port service check 2-23 Print quality service checks 2-24 Printhead service check 2-31 Transfer roll service check 2-31 Table of...
Service Manual
Page 46
...toner cartridge and PC kit. • If those fail, replace the LVPS/HVPS, controller card, or the printhead in printer service errors unless there is blockage of the transfer roll gear. • If there is blank. 2. Using print quality test pages To help evaluate print quality. c. The ... 2-24 Lexmark™ E350d, E352dn Turn on the lens. • Blank pages typically are caused by the PC roll not being properly charged. a. Press to Prt Quality Pgs. Unplug the printer, and check the cable continuity between the LVPS/HVPS connector marked OPC (at the end of service. d. ...
...toner cartridge and PC kit. • If those fail, replace the LVPS/HVPS, controller card, or the printhead in printer service errors unless there is blockage of the transfer roll gear. • If there is blank. 2. Using print quality test pages To help evaluate print quality. c. The ... 2-24 Lexmark™ E350d, E352dn Turn on the lens. • Blank pages typically are caused by the PC roll not being properly charged. a. Press to Prt Quality Pgs. Unplug the printer, and check the cable continuity between the LVPS/HVPS connector marked OPC (at the end of service. d. ...
Service Manual
Page 48
...printer driver. Make sure recommended media is being used . Check to make sure that the laser light path is low, try a new one. Replace the transfer roll assembly if the springs or bearings show signs of paper over the roll to the paper. Replace as necessary. Place a sheet of damage or fatigue. See"LVPS/HVPS service...the toner to prevent damage from finger oils or hand lotion. Inspect the transfer roll for more information. Variation in the printer driver. 2-26 Lexmark™ E350d, E352dn If toner cartridge is not blocked. Make sure recommended media is ...
...printer driver. Make sure recommended media is being used . Check to make sure that the laser light path is low, try a new one. Replace the transfer roll assembly if the springs or bearings show signs of paper over the roll to the paper. Replace as necessary. Place a sheet of damage or fatigue. See"LVPS/HVPS service...the toner to prevent damage from finger oils or hand lotion. Inspect the transfer roll for more information. Variation in the printer driver. 2-26 Lexmark™ E350d, E352dn If toner cartridge is not blocked. Make sure recommended media is ...
Service Manual
Page 53
...from finger oils or hand lotion. See "Controller card service check" on pin 4 at the back of wear, damage or contamination. Do not try to print the job. Inspect the transfer roll for more memory. Action Turn the printer off. Check the springs in the left spring. Install...are incorrect, check the controller card. Verify grounds on pins 2, 4, and 7 at J15. Transfer roll service check FRU Transfer roll Action Note: Do not touch the transfer roll except at J8 and +5 V dc on with cables). Turn the printer on pins 1 and 2 at J8 and on page 2-17 for signs of the...
...from finger oils or hand lotion. See "Controller card service check" on pin 4 at the back of wear, damage or contamination. Do not try to print the job. Inspect the transfer roll for more memory. Action Turn the printer off. Check the springs in the left spring. Install...are incorrect, check the controller card. Verify grounds on pins 2, 4, and 7 at J15. Transfer roll service check FRU Transfer roll Action Note: Do not touch the transfer roll except at J8 and +5 V dc on with cables). Turn the printer on pins 1 and 2 at J8 and on page 2-17 for signs of the...
Service Manual
Page 75
...LOG. Fuser Temperature (Fuser Temp) Changing this setting can reduce media curl or melting of printer errors. Selections are entered. The default setting is discarded. If an error occurs after ... All 2xx and 9xx error messages are Restore and Do Not Restore. To see the second service error, press . Transfer The transfer can be adjusted to Low, Medium, or High. To view the display log: 1. Range ...by the Factory Defaults setting in position 10 (if 10 errors have occurred). Charge Roll The charge roll can be adjusted to reduce curl of six errors (it is the first of...
...LOG. Fuser Temperature (Fuser Temp) Changing this setting can reduce media curl or melting of printer errors. Selections are entered. The default setting is discarded. If an error occurs after ... All 2xx and 9xx error messages are Restore and Do Not Restore. To see the second service error, press . Transfer The transfer can be adjusted to Low, Medium, or High. To view the display log: 1. Range ...by the Factory Defaults setting in position 10 (if 10 errors have occurred). Charge Roll The charge roll can be adjusted to reduce curl of six errors (it is the first of...
Service Manual
Page 141
...panel 1-2 controller card removal 4-13 service check 2-17 D Defaults US/Non-US defaults 3-19 Demo Mode 3-3 diagnostic information 2-1 diagnostics mode- 3-1 available tests 3-5 Base Sensor Test 3-18 EP Setup Charge Roll 3-21 EP Defaults 3-21 Fuser Temp 3-21 Gap Adjust 3-21 Print Contrast 3-21 Transfer 3-21 Event Log Clear Log ... Tray Tests Feed Tests 3-17 Sensor Test 3-18 menu list 3-5 Print Tests input source 3-14 input source tests 3-14 Prt Quality Pgs 3-14 Printer Setup Configuration ID 3-20 Defaults 3-19 Edge to Edge 3-20 Engine Settings 3-20 Model Name 3-20 Page Count 3-19 Par S Strobe Adj ...
...panel 1-2 controller card removal 4-13 service check 2-17 D Defaults US/Non-US defaults 3-19 Demo Mode 3-3 diagnostic information 2-1 diagnostics mode- 3-1 available tests 3-5 Base Sensor Test 3-18 EP Setup Charge Roll 3-21 EP Defaults 3-21 Fuser Temp 3-21 Gap Adjust 3-21 Print Contrast 3-21 Transfer 3-21 Event Log Clear Log ... Tray Tests Feed Tests 3-17 Sensor Test 3-18 menu list 3-5 Print Tests input source 3-14 input source tests 3-14 Prt Quality Pgs 3-14 Printer Setup Configuration ID 3-20 Defaults 3-19 Edge to Edge 3-20 Engine Settings 3-20 Model Name 3-20 Page Count 3-19 Par S Strobe Adj ...
Service Manual
Page 142
4512-420, -430 I -2 Lexmark™ E350d, E352dn print quality pages 3-3, 3-14 using 2-24 print quality problems print media 1-7 service check 2-24 solving 2-28 printer symptom table 2-16 printhead removal 4-40 service check 2-31 Q Quick Test 3-7, 3-14 R registration 3-7 removals controller card 4-13 cover open sensor ...38 printhead 4-40 procedures 4-1 toner level sensor- 4-41 transfer roll 4-42 Reset Factory Defaults 3-19 Reset PC Counter 3-2 S safety information ix safety inspection guide 6-1 sensors cover open 4-15 Serial Number 3-20 service checks 2-17 controller card 2-17 cooling fan 2-18 ...
4512-420, -430 I -2 Lexmark™ E350d, E352dn print quality pages 3-3, 3-14 using 2-24 print quality problems print media 1-7 service check 2-24 solving 2-28 printer symptom table 2-16 printhead removal 4-40 service check 2-31 Q Quick Test 3-7, 3-14 R registration 3-7 removals controller card 4-13 cover open sensor ...38 printhead 4-40 procedures 4-1 toner level sensor- 4-41 transfer roll 4-42 Reset Factory Defaults 3-19 Reset PC Counter 3-2 S safety information ix safety inspection guide 6-1 sensors cover open 4-15 Serial Number 3-20 service checks 2-17 controller card 2-17 cooling fan 2-18 ...
Service Manual
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... 1-3 operating systems 1-5 photoconductor capacity 1-4 print media 1-6 print speed 1-3 toner capacity 1-4 start 2-1 strobe adjustment 3-20 symptom tables 2-15 POST 2-15 printer 2-16 T test pages Print Quality Pages 3-14 Quick Test 3-7 tires, removal 4-38 tools 1-8 Top Margin 3-7 Transfer 3-21 transfer roll parts catalog 7-7 removal 4-42 service check 2-31 translated label 1-2 U user attendance messages 2-5 4512-420, -430 Index I-3
... 1-3 operating systems 1-5 photoconductor capacity 1-4 print media 1-6 print speed 1-3 toner capacity 1-4 start 2-1 strobe adjustment 3-20 symptom tables 2-15 POST 2-15 printer 2-16 T test pages Print Quality Pages 3-14 Quick Test 3-7 tires, removal 4-38 tools 1-8 Top Margin 3-7 Transfer 3-21 transfer roll parts catalog 7-7 removal 4-42 service check 2-31 translated label 1-2 U user attendance messages 2-5 4512-420, -430 Index I-3