Lexmark C736 Service Manual
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Diagnostic information2-105 5026 Go Back Previous Next 920.13—POST (power-on self test) cartridge motor 1 not connected error service check Step Questions / actions Yes No 1Turn the printer off, and then remove the rear frame cover. See “Rear frame cover removal” on page 4-33. Reseat the cables in connectors JCARTP1 (A) and JCARTS1 (B). Does the error clear?Problem resolved. Go to step 2. 2Check the cables in connectors JCARTP1 and JCARTS1 for pinch points and any other damage to the cables or connectors. Is the cable damaged?Replace the cartridge motor 1/fuser cable. See “Cartridge motor 1/fuser cable removal” on page 4-62. Go to step 3. 3Remove the right cover. Check the cartridge motor 1/fuser motor cable for proper connection to the EP drive assembly, pinch points for the cable, or any other damage to the cable or connector. Is either cable damaged?Replace the cartridge motor 1/fuser motor cable. See “Cartridge motor 1/ fuser cable removal” on page 4-62.Go to step 4. 4Measure the resistance across fuse F7 on the system board. Is the fuse blown?Replace the system board. See “System board removal” on page 4-153.Replace the EP drive assembly. See “Electrophotographic (EP) drive assembly removal” on page 4-82. 1JSB1JBIN1 JFAN1JFUSER1 JBOR1JHVPS1 JMIRR1JBLW1 JCVR1 JLVPS2 JCARTP1 JCARTS1 JCARTS2 JCARTP2 JDVR1 JDVR1 JTPS1 JOPT1 JFDS1 JINT1 JINT1 JFDPCK1JTRAY1JSEC1 JDX1 JT12J5 JDIMM1JOPP1 JT1 JUSB1 JBOOT1 JFMUSB1 J49 JTWF1 JTDBUG1 1111 11 1 11 1 1 1 1 1 1 1 1 1 11 1 1111 JTLBT1 JPH1 F5F6F7 F9 F10F12F13F141 1J1011 A B 1JSB1JBIN1 JFAN1JFUSER1 JBOR1 JBOR1JHVPS1 JMIRR1JBLW1 JCVR1 JLVPS2 JLVPS2 JCARTP1 JCARTS1 JCARTS2 JCARTP2 JDVR1 JTPS1 JTPS1 JOPT1 JFDS1 JINT1 JINT1 JFDPCK1 JFDPCK1JTRAY1JSEC1 JDX1 JT12J5 JDIMM1JOPP1 JT1 JUSB1 JBOOT1 JFMUSB1 J49 JTWF1 JTDBUG1 1111 11 1 11 1 1 1 1 1 1 1 1 1 11 1 1111 JTLBT1 JPH1 F5F6F7 F9 F10F12F13F141 1J1011 A
2-106Service Manual 5026 Go Back Previous Next 920.14—POST (power-on self test)—Cartridge motor 2 not connected error service check Step Questions / actions Yes No 11. Turn the printer off. 2. Remove the rear frame cover. See “Rear frame cover removal” on page 4-33. 3. Reseat the cables in connector JCARTP2 (A) and JCARTS2 (B). Does the error clear?Problem resolved. Go to step 2. 2Check the cable in connector JCARTP2 and JCARTS2 for pinch points and any other damage to the cable or connector. Are the cables damaged?Replace the cartridge motor 2/3 cable. See “Cartridge motor 2/3 cable removal” on page 4-64. Go to step 3. 3Remove the right cover. See “Right cover removal” on page 4-37. Check the cartridge motor 2/3 cable for the proper connection to the EP drive assembly, pinch point for the cable, or damage to the cable or connectors. Is either cable damaged?Replace the cartridge motor 2/3 cable. See “Cartridge motor 2/3 cable removal” on page 4-64. Go to step 4. 1JSB1JBIN1 JFAN1JFUSER1 JBOR1JHVPS1 JMIRR1JBLW1 JCVR1 JLVPS2 JCARTP1 JCARTS1 JCARTS2 JCARTP2 JDVR1 JTPS1 JOPT1 JFDS1 JINT1 JFDPCK1JTRAY1JSEC1 JDX1 JT12J5 JDIMM1JOPP1 JT1 JUSB1 JBOOT1 JFMUSB1 J49 JTWF1 JTDBUG1 1111 11 1 11 1 1 1 1 1 1 1 1 1 11 1 1111 JTLBT1 JPH1 F5F6F7 F9 F10F12F13F141 1J1011 A B
Diagnostic information2-107 5026 Go Back Previous Next 920.15, 920.20—POST (power-on self test)—Bad transfer module NVRAM data error service check 4Measure the resistance across the fuse F7 (A) on the system board. Is the fuse blown?Replace system board. See “System board removal” on page 4-153. Replace the EP drive assembly. See “Electrophotographic (EP) drive assembly removal” on page 4-82. Step Questions / actions Yes No 1Turn the printer off, and then remove the rear frame cover. See “Rear frame cover removal” on page 4-33. Reseat the transport cable in connector JTPS1 (A). Does the error clear?Problem resolved. Go to step 2. 2Check the transport cable in connector JTPS1 for pinch points and for any other damage to the cable or connector. Is the cable damaged?Replace the transport cable. See “Transport cable removal” on page 4-170. Go to step 3. Step Questions / actions Yes No 1JSB1JBIN1 JFAN1JFUSER1 JBOR1JHVPS1 JMIRR1JBLW1 JCVR1 JCVR1 JLVPS2 JCARTP1 JCARTS1 JCARTS2 JCARTP2 JDVR1 JTPS1 JOPT1 JFDS1 JINT1 JFDPCK1JTRAY1JSEC1 JDX1 JT12J5 JDIMM1JOPP1 JT1 JUSB1 JBOOT1 JFMUSB1 J49 JTWF1 JTDBUG1 1111 11 1 11 1 1 1 1 1 1 1 1 1 11 1 1111 JTLBT1 JPH1 F5F6F7 F9 F10F12F13F141 1J1011 A 1JSB1JBIN1 JFAN1JFUSER1 JBOR1JHVPS1 JMIRR1JBLW1 JCVR1 JCVR1 JLVPS2 JLVPS2 JCARTP1 JCARTS1 JCARTS2 JCARTP2 JDVR1 JTPS1 JOPT1 JFDS1 JINT1 JFDPCK1JTRAY1JSEC1 JDX1 JT12J5 JDIMM1JOPP1 JOPP1 JT1 JUSB1 JBOOT1 JFMUSB1 J49 JTWF1 JTDBUG1 1111 11 1 11 1 1 1 1 1 1 1 1 1 11 1 1111 JTLBT1 JPH1 F5F6F7 F9 F10F12F13F141 1J1011 A
2-108Service Manual 5026 Go Back Previous Next 920.16—POST (power-on self test)—Bad printhead NVRAM data error service check 3Lower the front access cover. Check the transport cable for pinch points and any other cable damage. Is the cable damaged?Replace the transport cable. See “Transport cable removal” on page 4-170.Go to step 4. 4Replace the transfer module. See “Transfer module removal” on page 4-168. Does the error clear?Problem resolved. Replace the system board. See “System board removal” on page 4-153. Step Questions / actions Yes No 1Turn the printer off, and then remove the rear frame cover. See “Rear frame cover removal” on page 4-33. Reseat the large printhead cable in connector (A). Does the error clear?Problem resolved. Go to step 2. 2Check the cable in connector JPH1 for pinch points and any other damage to the cable or connector. Is the cable damaged?Replace the printhead. See “Printhead removal, installation, and adjustment” on page 4-135.Go to step 3. 3Perform the printhead verification to check whether the printhead replacement fixes the problem. See “Printhead verification” on page 3-35. POR the printer. Did the error clear?Replace the printhead. See “Printhead removal, installation, and adjustment” on page 4-135.Replace the system board. See “System board removal” on page 4-153. Step Questions / actions Yes No 1JSB1JBIN1 JFAN1JFUSER1 JBOR1JHVPS1 JMIRR1JBLW1 JBLW1 JCVR1 JLVPS2 JCARTP1 JCARTS1 JCARTS2 JCARTP2 JDVR1 JTPS1 JOPT1 JFDS1 JINT1 JFDPCK1JTRAY1JSEC1 JDX1 JT12J5 JDIMM1JOPP1 JT1 JUSB1 JBOOT1 JFMUSB1 J49 JTWF1 JTDBUG1 1111 11 1 11 1 1 1 1 1 1 1 1 1 11 1 1111 JTLBT1 JPH1 F5F6F7 F9 F10F12F13F141 1J1011 A
Diagnostic information2-109 5026 Go Back Previous Next 920.17—POST (power-on self test)—Output bin cable not connected error service check Step Questions / actions Yes No 1Turn the printer off, and then remove the rear frame cover. See “Rear frame cover removal” on page 4-33. Reseat the bin full sensor cable in connector JBIN1 (A). Does the error clear?Problem resolved. Go to step 2. 2Check the bin full sensor cable in connector JBIN1 for pinch points and any other damage to the cable or connector. Is the cable damaged?Replace the bin full sensor with cable. See “Bin full sensor removal” on page 4-53.Go to step 3. 31. Disconnect the cable in the JBIN1 connector. 2. Connect the new bin full flag cable in the JBIN connector. 3. Bring the printer up in Diagnostic menu (turn off the printer, press and hold and . and turn on the printer). 4. Select SENSOR TESTS, and press Select(). 5. Select Other Sensors, and press Select(). 6. Select Bin Full Test, and press Select(). 7. Activate the new bin full sensor by placing a sheet of paper in the sensor. Did the bin full sensor change from Open to Closed?Replace the bin full sensor and cable. See “Bin full sensor removal” on page 4-53. Replace the system board. See “System board removal” on page 4-153. 1JSB1JBIN1 JFAN1JFUSER1 JBOR1JHVPS1 JMIRR1JBLW1 JCVR1 JCVR1 JLVPS2 JCARTP1 JCARTS1 JCARTS2 JCARTP2 JDVR1 JTPS1 JOPT1 JFDS1 JINT1 JFDPCK1JTRAY1JSEC1 JDX1 JT12J5 JDIMM1JOPP1 JT1 JUSB1 JBOOT1 JFMUSB1 J49 JTWF1 JTDBUG1 1111 11 1 11 1 1 1 1 1 1 1 1 1 11 1 1111 JTLBT1 JPH1 F5F6F7 F9 F10F12F13F141 1J1011 A
2-110Service Manual 5026 Go Back Previous Next 920.18—POST (power-on self test)—Cartridge motor 3 not connected error service check Step Questions / actions Yes No 1Turn the printer off and remove the rear frame cover. See “Rear frame cover removal” on page 4-33. Reseat the cables in connectors JCARTP2 (A) and JCARTS2 (B). Does the error clear?Problem resolved. Go to step 2. 2Check the cartridge motor 2/3 cables in connectors JCARTP2 and JCARTS2 for pinch points and any other damage to the cables or the connectors. Are the cables damaged?Replace the cartridge motor 2/3 cable. See “Cartridge motor 2/3 cable removal” on page 4-64. Go to step 3. 3Remove the right cover. Check the cartridge motor 2/3 cable for proper connections to the EP drive assembly, pinch points for the cable, and damage to the cable or connector. Is either cable damaged?Replace the cartridge motor 2/3 cable. See “Cartridge motor 2/3 cable removal” on page 4-64. Go to step 4. 1JSB1JBIN1 JFAN1JFUSER1 JBOR1JHVPS1 JMIRR1JBLW1 JCVR1 JLVPS2 JCARTP1 JCARTS1 JCARTS2 JCARTP2 JDVR1 JTPS1 JOPT1 JFDS1 JINT1 JFDPCK1JTRAY1JSEC1 JDX1 JT12J5 JDIMM1JOPP1 JT1 JUSB1 JBOOT1 JFMUSB1 J49 JTWF1 JTDBUG1 1111 11 1 11 1 1 1 1 1 1 1 1 1 11 1 1111 JTLBT1 JPH1 F5F6F7 F9 F10F12F13F141 1J1011 A B
Diagnostic information2-111 5026 Go Back Previous Next 920.19—POST (power-on self test)—Transfer module stepper motor not connected error service check 4Measure the resistance across the fuse F10 on the system board. Is the fuse blown?Replace the system board. See “System board removal” on page 4-153. Replace the EP drive assembly. See “Electrophotographic (EP) drive assembly removal” on page 4-82. Step Questions / actions Yes No 1Turn the printer off, and then remove the rear frame cover. See “Rear frame cover removal” on page 4-33. Reseat the motor driver cable in connector JDVR1 (A). Does the error clear?Problem resolved. Go to step 2. 2Remove the right cover. See “Right cover removal” on page 4-37. Check the motor driver cable in connector JDVR1 on the system board for pinch points or any other damage to the cable or connector. Also check the connector on the motor drive card. Is the cable damaged?Replace the motor driver cable. See “Motor driver cable removal” on page 4-115. Go to step 3. Step Questions / actions Yes No 1JSB1JBIN1 JFAN1JFUSER1 JBOR1JHVPS1 JMIRR1JBLW1 JCVR1 JLVPS2 JCARTP1 JCARTS1 JCARTS2 JCARTP2 JDVR1 JTPS1 JOPT1 JFDS1 JINT1 JFDPCK1JTRAY1JSEC1 JDX1 JT12J5 JDIMM1JOPP1 JT1 JUSB1 JBOOT1 JFMUSB1 JFMUSB1 J49 JTWF1 JTDBUG1 1111 11 1 11 1 1 1 1 1 1 1 1 1 11 1 1111 JTLBT1 JPH1 F5F6F7 F9 F10F12F13F141 1J1011 A 1JSB1JBIN1 JFAN1JFUSER1 JBOR1JHVPS1 JMIRR1JBLW1 JCVR1 JCVR1 JLVPS2 JLVPS2 JCARTP1 JCARTS1 JCARTS2 JCARTP2 JDVR1 JTPS1 JOPT1 JFDS1 JINT1 JFDPCK1JTRAY1JSEC1 JDX1 JT12J5 JDIMM1JOPP1 JOPP1 JT1 JUSB1 JBOOT1 JFMUSB1 J49 JTWF1 JTDBUG1 1111 11 1 11 1 1 1 1 1 1 1 1 1 11 1 1111 JTLBT1 JPH1 F5F6F7 F9 F10F12F13F141 1J1011 A
2-112Service Manual 5026 Go Back Previous Next 3Measure the resistance across fuses F12 (A) and F13 (B)on the system board. Is either fuse blown?Replace the system board. See “System board removal” on page 4-153. Go to step 4. 4Check the transport motor cable for pinch points and any other damage to the cable or connector. Is the cable damaged?Replace the transport motor cable. See “Transport cable removal” on page 4-170. Go to step 5. 5Visually inspect the motor driver card. Is the motor driver card damaged?Replace the motor driver card. See “Motor driver card removal” on page 4-114. Go to step 6. 6Replace the EP drive assembly. See “Electrophotographic (EP) drive assembly removal” on page 4-82.Problem resolved. Replace the system board. See “System board removal” on page 4-153. Step Questions / actions Yes No
Diagnostic information2-113 5026 Go Back Previous Next 920.21—POST (power-on self test)—24 V power supply failure error service check Step Questions / actions Yes No 1Check the input voltage switch on the back of the low-voltage power supply (LVPS). Some LVPS FRU do not have switches and switch automatically. If your does not have a switch, go to step 2. Is the voltage level (115/230) properly set?Go to step 2. Set switch for the proper country voltage. 2Turn the printer off, and then remove the rear frame cover. See “Rear frame cover removal” on page 4-33. Reseat the cable in connector JLVPS2 (A). Does the error clear?Problem resolved. Go to step 3. 3Check the cable JLVPS2 for pinch points and any other damage to the cable or connector. Is the cable damaged?Replace the low-voltage power supply. See “Low- voltage power supply (LVPS) removal” on page 4-112. Go to step 4. A 230 1JSB1JBIN1 JFAN1JFUSER1 JBOR1JHVPS1 JMIRR1JBLW1 JCVR1 JCVR1 JLVPS2 JCARTP1 JCARTS1 JCARTS2 JCARTP2 JDVR1 JTPS1 JOPT1 JFDS1 JINT1 JFDPCK1JTRAY1JSEC1 JDX1 JT12J5 JDIMM1JOPP1 JT1 JUSB1 JBOOT1 JFMUSB1 J49 JTWF1 JTDBUG1 1111 11 1 11 1 1 1 1 1 1 1 1 1 11 1 1111 JTLBT1 JPH1 F5F6F7 F9 F10F12F13F141 1J1011 A
2-114Service Manual 5026 Go Back Previous Next 920.23—POST (power-on self test)—Duplex motor not connected error service check 4Measure the resistance across fuses F5, F6, F7, F9, F10, F12, and F13 on the system board. Are any of the fuses blown?Replace the system board. See “System board removal” on page 4-153.Replace the low-voltage power supply. See “Low- voltage power supply (LVPS) removal” on page 4-112. Step Questions / actions Yes No 1Turn the printer off, and then remove the rear frame cover. See “Rear frame cover removal” on page 4-33. Reseat the cable in connector JDX1 (A). Does the error clear?Problem resolved. Go to step 2. 2Check the MPF/duplex motor cable in connector JDX1 for pinch points and any other damage to the cable or connector. Is the cable damaged?Replace the MPF/duplex motor cable. See “Multipurpose feeder (MPF)/duplex motor cable removal” on page 4-121.Go to step 3. Step Questions / actions Yes No 1 F5 F6 F7 F9 F10 F12F13 F8 1 1JSB1JBIN1 JFAN1JFUSER1 JBOR1JHVPS1 JMIRR1JBLW1 JCVR1 JLVPS2 JCARTP1 JCARTS1 JCARTS2 JCARTP2 JDVR1 JTPS1 JOPT1 JFDS1 JINT1 JFDPCK1JTRAY1JSEC1 JDX1 JT12J5 JDIMM1JOPP1 JT1 JUSB1 JBOOT1 JFMUSB1 J49 JTWF1 JTDBUG1 1111 11 1 11 1 1 1 1 1 1 1 1 1 11 1 1111 JTLBT1 JPH1 F5F6F7 F9 F10F12F13F141 1J1011 A