Lexmark X 850 Owners Manual
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Diagnostic information2-73 7500-XXX 243.04 Sensor (tray 3 feed-out) static jam 9Check the sensor (tray 3 feed-out) for proper connection. Is the above sensor connected properly?Replace the sensor (tray 3 feed-out). Go to “2000-sheet dual input (TTM)– sensor (tray 3 feed- out) removal” on page 4-247.Replace the connection. 10Check the connection between the 2TM/TTM controller card assembly and the printer engine card assembly. Are the above boards connected properly?Go to step 11.Replace the connection. 11Perform a print test. Does the error still occur?Replace the 2TM/ TTM controller card assembly. Go to “2000-sheet dual input (TTM)– 2TM/TTM controller card assembly removal” on page 4-274. Go to step 12.Problem solved. 12Perform a print test. Does the error still occur?Replace the printer engine card assembly. Go to “Printer engine card assembly removal” on page 4-117.Problem solved. StepCheckYe sNo 1Check the media position. Does the media touch the sensor (tray 3 feed-out)? Open the 2TM/TTM left door assembly, and visually check it.Remove the media.Go to step 2. 2Check the sensor (tray 3 feed-out) for proper operation. 1. Enter the Diagnostics Menu. 2. Touch INPUT TRAY TESTS. 3. Touch Sensor Test. 4. Touch Tr a y 3 . 5. Touch Feed-out. Open the 2TM/TTM left door assembly, and visually check it. Does the display on the operator panel change every time the actuator on the above sensor operates?Go to step 4. Go to step 3. StepCheckYe sNo
2-74MFP Service Manual 7500-XXX 244.00 Sensor (tray 4 feed-out) on jam (tray 4 media feed) 3Check the sensor (tray 3 feed-out) for proper connection. Is the above sensor connected properly?Replace the sensor (tray 3 feed-out). Go to “2000-sheet dual input (TTM)– sensor (tray 3 feed- out) removal” on page 4-247.Replace the connection. 4Perform a print test. Does the error still occur?Replace the 2TM/ TTM controller card assembly. Go to “2000-sheet dual input (TTM)– 2TM/TTM controller card assembly removal” on page 4-274. Go to step 5.Problem solved. 5Perform a print test. Does the error still occur?Replace the printer engine card assembly. Go to “Printer engine card assembly removal” on page 4-117.Problem solved. StepCheckYe sNo 1Check the media condition. Is the media in the tray crumpled or damaged?Replace the media.Go to step 2. 2Check the media size setup. Does the media size in use match the size set for tray 4?Go to step 3.Replace the media or change the media size setup. 3Check the tray 4 rolls. Pull out tray 4, and check it. Are the feed roll, separation roll, and pick roll for transport free of excess wear and contamination?Go to step 4.Clean or replace the feed roll, separation roll, and pick roll. Go to “2000-sheet dual input (TTM)– feed roll removal” on page 4-259, “2000-sheet dual input (TTM)– separation roll removal” on page 4-263, and “2000-sheet dual input (TTM)–pick roll removal” on page 4-266. 4Check the media position. Open the 2TM/TTM left door assembly, and visually check it. Does the media touch the sensor (pre-feed) of the tray 4 media feed unit assembly or the sensor (tray 4 feed- out)?Remove the media.Go to step 5. StepCheckYe sNo
Diagnostic information2-75 7500-XXX 5Check the tray 4 sensor (pre-feed) for proper operation. 1. Enter the Diagnostics Menu. 2. Touch INPUT TRAY TESTS. 3. Touch Sensor Test. 4. Touch Tr a y 4 . 5. Touch Feed-out. Remove the media tray assembly. Does the display on the operator panel change every time a white piece of paper is placed over the sensing area of the above sensor?Go to step 7.Go to step 6. 6Check the tray 4 sensor (pre-feed) for proper connection. Is the above sensor connected properly?Replace the sensor (pre-feed). Go to “2000-sheet dual input (TTM)– sensor (pre-feed) removal” on page 4-256.Replace the connection. 7Check the connection between the 2TM/TTM controller card assembly and the printer engine card assembly. Are the above cards connected properly?Go to step 8.Replace the connection. 8Check the sensor (tray 4 feed-out) for proper operation. 1. Enter the Diagnostics Menu. 2. Touch INPUT TRAY TESTS. 3. Touch Sensor Test. 4. Touch Tr a y 4 . 5. Touch Feed-out. Open the 2TM/TTM left door assembly, and visually check it. Does the display on the operator panel change every time the actuator on the above sensor operates?Go to step 10.Go to step 9. 9Check the sensor (tray 4 feed-out) for proper connection. Is the above sensor connected properly?Replace the sensor (tray 4 feed-out). Go to “2000-sheet dual input (TTM)– sensor (tray 4 feed- out) removal” on page 4-241.Replace the connection. StepCheckYe sNo
2-76MFP Service Manual 7500-XXX 10Remove the tray 4 media transport assembly from the TTM. Go to “2000-sheet dual input (TTM)–tray 4 media transport assembly removal” on page 4-229. Inspect the metal tab on the tray 4 media transport assembly as shown in the graphic below. Is the metal tab on the tray 4 media transport assembly bent?Staighten the metal tab with needle nose plyiers or replace the tray 4 media transport assembly. Go to “2000-sheet dual input (TTM)– tray 4 media transport assembly removal” on page 4-229.Go to step 11. 11Perform a print test. Does the error still occur?Replace the 2TM/ TTM controller card assembly. Go to “2000-sheet dual input (TTM)– 2TM/TTM controller card assembly removal” on page 4-274. Go to step 12.Problem solved. 12Perform a print test. Does the error still occur?Replace the printer engine card assembly. Go to “Printer engine card assembly removal” on page 4-117.Problem solved. StepCheckYe sNo
Diagnostic information2-77 7500-XXX 244.01 Sensor (tray 3 feed-out) on jam (tray 4 media feed) StepCheckYe sNo 1Check the media condition. Is the media in the tray crumpled or damaged?Replace the media.Go to step 2. 2Check the media size setup. Does the media size in use match the size set for tray 4?Go to step 3.Replace the media, or change the media size setup. 3Check the tray 4 rolls. Pull out tray 4, and check it. Are the feed roll, separation roll, and pick roll for transport free of excess wear and contamination?Go to step 4.Clean or replace the feed roll, separation roll, and pick roll. Go to “2000-sheet dual input (TTM)– feed roll removal” on page 4-259, “2000-sheet dual input (TTM)– separation roll removal” on page 4-263, and “2000-sheet dual input (TTM)–pick roll removal” on page 4-266. 4Check the media position. Open the 2TM/TTM left door assembly, and visually check it. Does the media touch the sensor (tray 3 feed-out) or the sensor (tray 4 feed-out)?Remove the media.Go to step 5. 5Check the sensor (tray 4 feed-out) for proper operation. 1. Enter the Diagnostics Menu. 2. Touch INPUT TRAY TESTS. 3. Touch Sensor Test. 4. Touch Tr a y 4 . 5. Touch Feed-out. Open the 2TM/TTM left door assembly, and visually check it. Does the display on the operator panel change every time the actuator on the above sensor operates?Go to step 7.Go to step 6. 6Check the sensor (tray 4 feed-out) for proper connection. Is the above sensor connected properly?Replace the sensor (tray 4 feed-out). Go to “2000-sheet dual input (TTM)– sensor (tray 4 feed- out) removal” on page 4-241.Replace the connection. 7Check the connection between the 2TM/TTM controller card assembly and the printer engine card assembly. Are the above cards connected properly?Go to step 8.Replace the connection.
2-78MFP Service Manual 7500-XXX 8Check the sensor (tray 3 feed-out) for proper operation. 1. Enter the Diagnostics Menu. 2. Touch INPUT TRAY TESTS. 3. Touch Sensor Test. 4. Touch Tr a y 3 . 5. Touch Feed-out. Open the 2TM/TTM left door assembly, and visually check it. Does the display on the operator panel change every time the actuator on the above sensor operates?Go to step 10.Go to step 9. 9Check the sensor (tray 3 feed-out) for proper connection. Is the above sensor connected properly?Replace the sensor (tray 3 feed-out). Go to “2000-sheet dual input (TTM)– sensor (tray 3 feed- out) removal” on page 4-247.Replace the connection. 10Remove the tray 4 media transport assembly from the TTM. Go to “2000-sheet dual input (TTM)–tray 4 media transport assembly removal” on page 4-229. Inspect the metal tab on the tray 4 media transport assembly as shown in the graphic below. Is the metal tab on the tray 4 media transport assembly bent?Staighten the metal tab with needle nose plyiers or replace the tray 4 media transport assembly. Go to “2000-sheet dual input (TTM)– tray 4 media transport assembly removal” on page 4-229.Go to step 11. StepCheckYe sNo
Diagnostic information2-79 7500-XXX 244.02 Sensor (tray 2 feed-out) on jam (tray 4 media feed) 11Perform a print test. Does the error still occur?Replace the 2TM/ TTM controller card assembly. Go to “2000-sheet dual input (TTM)– 2TM/TTM controller card assembly removal” on page 4-274. Go to step 12.Problem solved. 12Perform a print test. Does the error still occur?Replace the printer engine card assembly. Go to “Printer engine card assembly removal” on page 4-117.Problem solved. StepCheckYe sNo 1Check the media condition. Is the media in the tray crumpled or damaged?Replace the media.Go to step 2. 2Check the media size setup. Does the media size in use match the size set for tray 4?Go to step 3.Replace the media or change the media size setup. 3Check the tray 4 rolls. Pull out tray 4, and check it. Are the feed roll, separation roll, and pick roll for transport free of excess wear and contamination?Go to step 4.Clean or replace the feed roll, separation roll, and pick roll. Go to “2000-sheet dual input (TTM)– feed roll removal” on page 4-259, “2000-sheet dual input (TTM)– separation roll removal” on page 4-263, and “2000-sheet dual input (TTM)–pick roll removal” on page 4-266. 4Check the media position. Open the printer left lower door assembly, and visually check it. Does the media touch the sensor (tray 2 feed-out)?Remove the media.Go to step 5. 5Check the media position. Open the 2TM/TTM left door assembly, and visually check it. Does the media touch the sensor (tray 4 feed-out)?Remove the media.Go to step 6. StepCheckYe sNo
2-80MFP Service Manual 7500-XXX 6Check the sensor (tray 2 feed-out) for proper operation. 1. Enter the Diagnostics Menu. 2. Touch INPUT TRAY TESTS. 3. Touch Sensor Test. 4. Touch Tr a y 2 . 5. Touch Feed-out. Open the printer left lower door assembly, and visually check it. Does the display on the operator panel change every time a white piece of paper is placed over the sensing area of the above sensor?Go to step 8.Go to step 7. 7Check the sensor (tray 2 feed-out) for proper connection. Is the above sensor connected properly?Replace the sensor (tray 2 feed-out). Go to “Sensor (tray 2 feed-out) removal” on page 4-83.Replace the connection. 8Check the sensor (tray 4 feed-out) for proper operation. 1. Enter the Diagnostics Menu. 2. Touch INPUT TRAY TESTS. 3. Touch Sensor Test. 4. Touch Tr a y 4 . 5. Touch Feed-out. Open the 2TM/TTM left door assembly, and visually check it. Does the display on the operator panel change every time the actuator on the above sensor operates?Go to step 10.Go to step 9. 9Check the sensor (tray 4 feed-out) for proper connection. Is the above sensor connected properly?Replace the sensor (tray 3 feed-out). Go to “2000-sheet dual input (TTM)– sensor (tray 3 feed- out) removal” on page 4-247.Replace the connection. 10Check the connection between the 2TM/TTM controller card assembly and the printer engine card assembly. Are the above cards connected properly?Go to step 11.Replace the connection. 11Perform a print test. Does the error still occur?Replace the 2TM/ TTM controller card assembly. Go to “2000-sheet dual input (TTM)– 2TM/TTM controller card assembly removal” on page 4-274. Go to step 12.Problem solved. StepCheckYe sNo
Diagnostic information2-81 7500-XXX 244.03 Sensor (registration) on jam (tray 4 media feed) 12Perform a print test. Does the error still occur?Replace the printer engine card assembly. Go to “Printer engine card assembly removal” on page 4-117.Problem solved. StepCheckYe sNo 1Check the media condition. Is the media in the tray crumpled or damaged?Replace the media.Go to step 2. 2Check the media size setup. Does the media size in use match the size set for tray 4?Go to step 3.Replace the media or change the media size setup. 3Check the tray 4 rolls. Pull out tray 4, and check it. Are the feed roll, separation roll, and pick roll for transport free of excess wear and contamination?Go to step 4.Clean or replace the feed roll, separation roll, and pick roll. Go to “2000-sheet dual input (TTM)– feed roll removal” on page 4-259, “2000-sheet dual input (TTM)– separation roll removal” on page 4-263, and “2000-sheet dual input (TTM)–pick roll removal” on page 4-266. 4Check the media position (1). Open the printer left door assembly, and visually check it. Does the media touch the sensor (registration)?Remove the media.Go to step 5. 5Check the media position (2). Open the 2TM/TTM left door assembly, and visually check it. Does the media touch the sensor (tray 4 feed-out)?Remove the media.Go to step 6. 6Check the sensor (registration) for proper operation. 1. Enter the Diagnostics Menu. 2. Touch BASE SENSOR TEST. 3. Touch Media Path. 4. Touch Registration. Open the printer left door assembly, and visually check it. Does the display on the operator panel change every time the actuator on the above sensor operates?Go to step 8.Go to step 7. StepCheckYe sNo
2-82MFP Service Manual 7500-XXX 244.04 Sensor (pre-feed) on jam (tray 4 media feed) 7Check the sensor (registration) for proper connection. Is the above sensor connected properly?Replace the sensor (registration). Go to “Sensor (registration) removal” on page 4-81.Replace the connection. 8Check the sensor (tray 4 feed-out) for proper operation. 1. Enter the Diagnostics Menu. 2. Touch INPUT TRAY TESTS. 3. Touch Sensor Test. 4. Touch Tr a y 4 . 5. Touch Feed-out. Open the 2TM/TTM left door assembly, and visually check it. Does the display on the operator panel change every time the actuator on the above sensor operates?Go to step 10.Go to step 9. 9Check the sensor (tray 4 feed-out) for proper connection. Is the above sensor connected properly?Replace the sensor (tray 4 feed-out). Go to “2000-sheet dual input (TTM)– sensor (tray 4 feed- out) removal” on page 4-241.Replace the connection. 10Check the connection between the 2TM/TTM controller card assembly and the printer engine card assembly. Are the above cards connected properly?Go to step 11.Replace the connection. 11Perform a print test. Does the error still occur?Replace the 2TM/ TTM controller card assembly. Go to “2000-sheet dual input (TTM)– 2TM/TTM controller card assembly removal” on page 4-274. Go to step 12.Problem solved. 12Perform a print test. Does the error still occur?Replace the printer engine card assembly. Go to “Printer engine card assembly removal” on page 4-117.Problem solved. StepCheckYe sNo 1Check the media condition. Is the media in the tray crumpled or damaged?Replace the media.Go to step 2. StepCheckYe sNo