Lexmark C 950 Service Manual
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Repair information 4-387 5058-030 Go Back Previous Next 3.Release the hooks securing the sensor (HCF unit docking interlock) (A) to the unit. 4.Remove the sensor (HCF unit docking interlock) (A). Sensor (HCF top door interlock) removal 1.Remove the HCF unit to the printer. 2.Open the HCF top door assembly. 3.Disconnect the connector from the sensor (HCF top door interlock) (A). 4.Remove the two screws securing the bracket (B) to the unit. 5.Remove the bracket (B). Hook A Front Hook Connectors
4-388 Service Manual 5058-030 Go Back Previous Next 6.Release the hooks securing the sensor (HCF top door interlock) (A) to the bracket (B). 7.Remove the sensor (HCF top door interlock) (A). Sensor (tray 5 media level) removal 1.Open the HCF top door. 2.Open the HCF feed unit assembly. 3.Disconnect the connector from the sensor (tray 5 media level) (A). A B Connector
Repair information 4-389 5058-030 Go Back Previous Next 4.Release the hooks securing the sensor (tray 5 media level) (A) from the HCF feed unit assembly (B). 5.Remove the sensor (tray 5 media level) (A). Sensor (tray 5 media out) removal 1.Open the HCF top door. 2.Open the HCF feed unit assembly. 3.Remove the connector from the sensor (tray 5 media out) (A). A B Front Connector
4-390 Service Manual 5058-030 Go Back Previous Next 4.Release the hooks securing the sensor (tray 5 media out) (A) to the HCF feed unit assembly (B). 5.Remove the sensor (tray 5 media out) (A). Note: The sensor (tray 5 media out) (A) may be easier to replace if the upper guide (C) is removed to provide access. Sensor (tray 5 pre feed) removal 1.Open the HCF top door. 2.Open the HCF feed unit assembly. 3.Remove the three screws securing the upper guide (A) to the HCF feed unit assembly (B). 4.Remove the upper guide (A). 5.Remove the connector from the sensor (tray 5 pre-feed) (C). A C FrontB Connector
Repair information 4-391 5058-030 Go Back Previous Next 6.Remove the one screw securing the sensor (tray 5 pre feed) (C) to the HCF feed unit assembly (B). 7.Remove sensor (tray 5 pre feed) (C). A C B Connector
4-392 Service Manual 5058-030 Go Back Previous Next Setup and adjustments Sensor (ATC) setup Warning: This procedure must be done for all new developer housings being installed or print quality problems may occur. Note: This procedure is applicable only to firmware versions LHS2.TP.P244a and above. Before re-installing the new developers, make sure the latest firmware is installed on the device. 1Before installing any new developer housings in the machine, record the barcode number located on the sensor (ATC) for all new developer housings to be installed. Example: 2From the Diagnostics menu, navigate to Engine Adjust > ATC Sensor Adjust Values. Enter the values recorded in step 1 to its applicable settings: • ATC SENSOR BARCODE_NO[Y] • ATC SENSOR BARCODE_NO[M] • ATC SENSOR BARCODE_NO[C] • ATC SENSOR BARCODE_NO[K] Touch Submit to save the settings. 3Without exiting Diagnostics mode, navigate to the Engine Adjust menu and touch ATC Sensor Adjust Cycle. The operation runs, until the operator panel prompts as “passed”. After this operation, the ATC Sensor Adjust Values settings other than the barcode settings are automatically computed. 4Without exiting Diagnostics mode, enter again the ATC Sensor Adjust Values to view the settings. Use the ATC value conversion chart to get the corresponding Coefficient and Offset NVM values for each barcode. See “ATC value conversion chart” on page 4-393. Check the settings shown on the menu if they match the values on the ATC value conversion chart. If the values are different, then update the following settings to correctly match: Touch Submit to save the settings. 033 Settings to update Values from the ATC value conversion chart ATC SETUP COEFFICIENT (Y) ATC Setup Coefficient for Y ATC SETUP COEFFICIENT (M) ATC Setup Coefficient for M ATC SETUP COEFFICIENT (C) ATC Setup Coefficient for C ATC SETUP COEFFICIENT (K) ATC Setup Coefficient for K ATC SETUP OFFSET (Y) ATC Setup Offset for Y ATC SETUP OFFSET (M) ATC Setup Offset for M ATC SETUP OFFSET (C) ATC Setup Offset for C ATC SETUP OFFSET (K) ATC Setup Offset for K
Repair information 4-393 5058-030 Go Back Previous Next 5Warning: The following step must be performed, or the new machine settings will not match the settings listed on the birth certificate if it is required for NVM value replacement. Retrieve the birth certificate from the compartment (1) in the media tray 1. Using the the same Coefficient and Offset NVM values taken from step 2, overwrite the following settings found on the birth certificate: • ATC Setup Coefficient for Y • ATC Setup Coefficient for M • ATC Setup Coefficient for C • ATC Setup Coefficient for K • ATC Setup Offset for Y • ATC Setup Offset for M • ATC Setup Offset for C • ATC Setup Offset for K Return the birth certificate to the settings sheet compartment (1). 6Exit diagnostics mode and perform a print test. ATC value conversion chart Barcode number (last 2 digits)ATC Setup Coefficient ValueATC Setup Offset Value 00 1638 -266 01 1462 -181 02 1321 -133 03 1204 -56 04 1107 -9 05 1024 31 06 952 66 07 890 96 08 835 123 09 787 146 10 1638 -276 11 1462 -190 1
4-394 Service Manual 5058-030 Go Back Previous Next 12 1321 -121 13 1204 -63 14 1107 -16 15 1024 25 16 952 60 17 890 91 18 835 118 19 787 141 20 1638 -286 21 1462 -199 22 1321 -129 23 1204 -71 24 1107 -23 25 1024 19 26 952 54 27 890 85 28 835 112 29 787 136 30 1638 -296 31 1462 -208 32 1321 -137 33 1204 -78 34 1107 -29 35 1024 12 36 952 49 37 890 80 38 835 107 39 787 132 40 1638 -306 41 1462 -217 42 1321 -145 ATC value conversion chart Barcode number (last 2 digits)ATC Setup Coefficient ValueATC Setup Offset Value
Repair information 4-395 5058-030 Go Back Previous Next 43 1204 -85 44 1107 -36 45 1024 6 46 952 43 47 890 74 48 835 102 49 787 127 50 1638 -316 51 1462 -225 52 1321 -153 53 1204 -93 54 1107 -43 55 1024 0 56 952 37 57 890 69 58 835 97 59 787 122 60 1638 -326 61 1462 -234 62 1321 -161 63 1204 -100 64 1107 -49 65 1024 -6 66 952 31 67 890 64 68 835 92 69 787 117 70 1638 -336 71 1462 -243 72 1321 -169 73 1204 -107 ATC value conversion chart Barcode number (last 2 digits)ATC Setup Coefficient ValueATC Setup Offset Value
4-396 Service Manual 5058-030 Go Back Previous Next 74 1107 -56 75 1024 -12 76 952 26 77 890 58 78 835 87 79 787 112 80 1638 -346 81 1462 -252 82 1321 -177 83 1204 -114 84 1107 -63 85 1024 -19 86 952 20 87 890 53 88 835 82 89 787 108 90 1638 -356 91 1462 -261 92 1321 -185 93 1204 -122 94 1107 -70 95 1024 -25 96 952 14 97 890 47 98 835 77 99 787 103 ATC value conversion chart Barcode number (last 2 digits)ATC Setup Coefficient ValueATC Setup Offset Value