Lexmark C760 Service Manual
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Diagnostic information2-35 5060-4xx 40 < color > Invalid Refill This message is displayed when the printer has detected a refilled Return Program cartridge. < color> can be black, cyan, magenta, or yellow. Remove the toner cartridge and install a new cartridge. Press and hold Select and then press Return to display any secondary error codes that might help diagnose a problem. Note : The user receives this message for every invalid cartridge installed. 50 PPDS Font Error This error displays when the PPDS interpreter has detected a font error. When a specific font, which is not installed is requested, based on a PPDS mode Set Font Global command, a Select Code Page command, or a comprehensive Font Selection command and the printer BEST FIT setting is OFF. If BEST FIT is ON, the printer performs a best fit search to find a similar font and this error does not occur. This error also displays when the printer receives invalid PPDS download font data. Note: This error only occurs when a printer is formatting PPDS print data. Other data streams support different protocols for handling font errors. The following actions can be taken while this message is displayed: Press Go to clear the message and continue processing the job. Press Menu to access the Busy/Waiting Menu. The following functions may be available via the Busy/ Waiting: -Cancel Job - Reset Printer - Reset Active Bin 51 Defective Flash This message is displayed when the printer detects a defective flash. Press Go to clear the message. The flash is marked as bad and normal operation continues. No flash operation is allowed until the flash problem is resolved. 52 Flash Full This message is displayed when there is not enough free space in the flash memory to hold the resources that have been requested to be written to flash. Note: The following action deletes all downloaded Fonts and Macros not written to flash: Press Go to clear the message and continue processing the print job. Press Menu to access the Busy/Waiting Menu. The following functions may be available: Cancel Job Reset Printer Reset Active Bin Check Supply Levels Note : Menu Lockout does NOT prevent access to the Busy/ Waiting Menu. User primary message User secondary message Explanation
2-36Service Manual 5060-4 xx 53 Unformatted Flash This message is displayed when the printer detects an unformatted flash at POST. Press Go to clear the message. The flash is marked bad and normal operation continues. Flash operations are not allowed until the flash is formatted. 54 Std Par ENA Connection Lost This message is displayed when the printer detects during POST that the connection to an ENA has been lost. Once a connection is initially established, a printer setting is modified to 54 Par x ENA to note a connection exists. Each time the power is cycled on, the connection is lost. 54 Std Network Software Error This message is displayed when the RIP software detects that a network port is installed but cannot establish communications with it. 54 Network x Software Error Press Go to clear this message. The printer disables all communications to the associated network interface. No data may be received or sent from or to the associated interface. The user can program new firmware in the network using the parallel port after this message clears. 54 Serial Option x Error This message is displayed when a serial error, either framing, parity or overrun, is detected on the specified (option x) serial port. This usually means the serial port is not set up correctly. Press Go to clear the message and continue processing the print job. Note : If the print job does not print correctly, make sure that the correct cable is being used. 55 Unsupported Option in Slot x 55 Unsupported Flash in Slot x This message displays when an unsupported option is installed or when an unsupported flash DIMM, such as a C750 version, is installed in a memor y slot. Turn off the printer and remove the offending option. 56 Serial Port x Disabled These messages may appear when data is sent to the printer across a serial port, but the port is disabled. Note : Once the error is displayed the first time, reporting of further errors is suppressed until the printer is reset or menus are entered. The following actions can be taken: Press Go to clear the message. Any data received on the serial port is discarded. Press Menu to access the Busy/Waiting Menu. The following functions may be available: Reset Printer Reset Active Bin Check Supply Levels Note : Menu Lockout does NOT prevent access to the Busy/ Waiting Menu. User primary message User secondary message Explanation
Diagnostic information2-37 5060-4xx 56 Std Parallel Por t Disabled 5 6 Pa ra ll el Po r t x Disabled These messages may appear when data is sent to the printer across a parallel port, but the port is disabled. Note : Once the error is displayed the first time, reporting of further errors is suppressed until the printer is reset or menus are entered. The following actions can be taken: Press Go to clear the message. Any data received on the parallel port is discarded. Press Menu to access the Busy/Waiting Menu. The following functions may be available: Reset Printer Reset Active Bin Check Supply Levels Note : Menu Lockout does NOT prevent access to the Busy/ Waiting Menu. 56 Standard USB Por t Disabled 56 USB Port x Disabled These messages may appear when data is sent to the printer across the USB port, but the port is disabled. Note : Once the error is displayed the first time, reporting of further errors is suppressed until the printer is reset or menus are entered. The following actions can be taken: Press Go to clear the message. Any data received on the USB port is discarded Press Menu to access the Busy/Waiting Menu. The following functions may be available: Reset Printer Reset Active Bin Check Supply Levels Note : Menu Lockout does NOT prevent access to the Busy/ Waiting Menu. 57 Configuration Change Held Jobs May Not Be Restored Help Jobs May Not be RestoredThis message are displays when the printer has attempted to Print and Hold jobs from the disk and found that some or all of the jobs could not be restored. Each of the three 57 Configuration Held Jobs messages describe different conditions under which the restore failed. Primary Message: 37 Insufficient Memory. The printer firmware ran out of memory while attempting to restore the jobs. Secondary Message: Held Jobs May Not Be Restored. Primary Message: 57 Configuration Change - The printer firmware could not restore jobs from the disk because the configuration of the printer has changed. Secondary Message: Held Jobs May Not Be Restored. Some configuration changes that can cause a 57 Configuration Change message are: - Code version change - Paper handling option removed - Disk drive has been moved to a different printer. Primary Message: Held Jobs May Not Be Restored handles any other conditions where any of the Print and Hold jobs could not be restored from the disk. Note : Some of the Print and Hold jobs may not be restored. They remain on the disk but cannot be accessed. 58 Too Many Trays Attached This message is displayed when too many trays are attached to the printer. Check the specifications and verify the number of trays allowed on each printer model. User primary message User secondary message Explanation
2-38Service Manual 5060-4 xx 58 Too Many Bins Attached This message is displayed when too many optional bins are attached to the printer or if an unsupported combination of bins is installed. 58 Too Many Disks Installed This message is displayed when too many disks are installed. Note : Some configurations of different output options require the installation of one option before the other. 58 Too Many Flash Options This message is displayed when too many Flash Options are installed. Verify the maximum number of flash memory options which may be installed. Note : Press Go to clear the message. The extra flash memory options are ignored. 59 Incompatible Output Bin x 59 Incompatible Tr a y x 59 Incompatible Duplex These messages are displayed when the user installs an incompatible option. The following options may be incompatible for use on one or more C76x models: Output Bin x ( x=1, 2 or 3) Tray x ( x=2,3,4 or 5) Duplex Envelope feeder The user is required to remove the incompatible option and press Go to clear the message. Note : If the user installed the incompatible option to satisfy a Check Option Connections/Reattach Option attendance condition, the user must reinstall an associated compatible option or Hot Unplug the option. 61 Defective Disk This message is displayed when the printer detects a defective disk. This error may occur at power on, or during disk format and write operations. Press Go to clear the message. The disk is marked as defective and normal printer operation continues. Disk operations are not allowed with a defective disk and the Format Disk menu item is not shown. 62 Disk Full This message is displayed when there is not enough free space on the disk to hold the data that have been requested to be written to the disk. This message is displayed for both resource collection and PostScript when the disk is full. The following actions can be taken, however this deletes all downloaded Fonts and Macros not written to disk. Press Go to clear the message and continue processing the print job Press Menu to access the Busy/Waiting Menu The following functions may be available: Cancel Job Reset Printer Reset Active Bin Check Supply Levels Note : Menu Lockout does NOT prevent access to the Busy/ Waiting Menu. User primary message User secondary message Explanation
Diagnostic information2-39 5060-4xx 63 Unformatted Disk This message is displayed when the printer detects an unformatted disk at POST. Press Go to clear the message. The disk is marked as bad and normal operation continues, however disk operation is not allowed until the disk is formatted. 64 Unsupported Disk For mat This message is displayed when the printer detects an unsupported disk format at POST. This message may appear if the disk was formatted on another system with a different format. Press Go to clear the message. The disk is marked as bad and normal operation continues, however disk operations is not allowed until the disk is formatted. 80 Fuser Maintenance This messages displays when the printer requires replacement of a worn assembly. The message is independently posted when a fuser needs to be replaced. Press Go to clear this message. See “Scheduled maintenance” on page 6-4 for the part number of the maintenance kit. 81 Engine Code CRC Failure This message is displayed when microcode programmed into the engine flash code fails a CRC check. Press Go to clear the message. The code data is discarded and must be resent from the host computer. 82 Waste Toner Bottle Full This message is displayed when the waste container is full. Replace the waste container and press Go. 82 Waste Toner Bottle Missing This message is displayed when the waste container is missing. Insert the waste container and press Go. 82 Waste Bottle Nearly Full This message is displayed when the waste container is nearly full. Press Go Nearly Full appears in the Supplies Menu. 83 ITU Maintenance This message displays when the ITU reaches end of life. It is recommended the customer order the maintenance kit. See “Scheduled maintenance” on page 6-4 for the part number of the maintenance kit. You can press Go to continue, however, the message persists until replacement. 84 Replace Oiler This message is displayed when the web oiler is exhausted or missing. Replace the web oiler. See “Scheduled maintenance” on page 6-4 for the part number of the web oiler fuser replacement kit. 84 Oiler Nearly Exhausted This message is displayed when the web oiler is nearly exhausted. Press Go to continue to clear this message. If 84 Oiler Nearly Exhausted message does not clear after a new web oiler has been installed, replace parts in the following order: Fuser web oiler drive motor assembly Fuser web oiler card. User primary message User secondary message Explanation
2-40Service Manual 5060-4 xx 85 ITU Maintenance Check printouts for excess toner. If present, replace the suspect car tridge. Otherwise, replace the “ITU assembly” on page 4-44 . Press Go to continue, however, the message persists until replacement. 86 ITU Maintenance This message displays when the ITU reaches end of life. Check printouts for excess toner. If present, replace the suspect cartridge. Otherwise, Replace the “ITU assembly” on page 4-44 . Press Go to continue, however, the message persists until replacement. 87 Fuser Missing This message is displayed when the engine detects the fuser is missing. Turn the printer off and insert the fuser assembly. 88 Yellow Toner Low 88 Magenta Toner Low 88 Cyan Toner Low 88 Black Toner Low These messages are displayed when either the Yellow, Magenta, Cyan, or Black toner cartridge is low on toner. The following actions can be taken: Open the front door, remove the old toner cartridge, insert a new toner cartridge, and close the door or Press Go without changing the toner cartridge and continue. 89 ITU Maintenance Check the ITU Release Lever for correct operation. The ITU Release Lever is the black lever located on the left upper side frame above the ITU opening and can be seen by opening and lowering the MPF Assembly. When locked the lever should be at the 6 oclock position. When unlocked it should be in a 3 oclock position. Undue pressure is not required to operate the lever Turn the printer off, inser t the ITU, move the lever to the 6 oclock position, and turn the printer back on. If this does not resolve, replace the “ITU assembly” on page 4-44 . Press Go to continue. The message persists until replacement. 1565 Emul Error Load Emul Option This message appears when the IPDS emulation version contained in the SIMM does not function with the printer code. This message automatically clears in 30 seconds, and the IPDS emulation is disabled. No other printer functions are affected. The correct IPDS emulation must be downloaded. User primary message User secondary message Explanation
Diagnostic information2-41 5060-4xx Service checks 100 ITU Error A 100 ITU error indicates that the printer did not detect the ITU belt home sensor. Before proceeding with this service check make sure that the Second Transfer Roll is correctly installed. After you reinstall the Second Transfer Roll, check to see if a 100 ITU error is still displayed. If a 100 ITU error is still being displayed, continue with this check. The ITU has an optical sensor that watches for a piece of reflective tape on the inside of the image belt. This tape is read every revolution of the belt. If a signal is not received from the belt sensor within a certain time period, the printer posts an error due to the loss of signal. There are several causes for the loss of signal. First, the belt has tracked too far to the front or rear of the printer. In this case, the belt is still turning, but the reflective tape is no longer passing within view of the belt sensor. This is considered a belt tracking error and is initially posted as a 104 ITU Error. The other causes of a signal loss could be a belt stall, meaning the belt is not turning, or a true signal loss, which would be due to a bad sensor, broken cable, loose connection, or bad system board. These other causes post as a 100 ITU Error. To assist the printer in determining what is the cause of a signal loss, there is a buffer that records the belt position for the last 50 revolutions. If the printer loses the belt signal, it refers to the buffer. If the buffer shows significant mistracking before signal loss, it will post a 104 ITU Error. If the buffer shows that the belt has been tracking in the center before signal loss, it posts a 100 ITU Error. Due to memory restrictions, the buffer is not saved during POR. This means, if a printer posts a 104 ITU Error, so the belt is tracked o ff, and the customer or servicer turns off the printer to clear the error, when the printer starts up, it will still not see the belt signal and will now post a 100 ITU Error because the buffer is empty. When servicing a printer for a 100 ITU Error, it is important to view the error log. See “Display Log” on page 3-35. The error log can only be displayed at this point. Do not try to print the log. Look for past occurrences of 100 ITU Errors preceded by a 104 ITU Error. Step Action and questions Yes No 1 Make sure all packing material is removed from the printer. The detensioner is located underneath the toner cartridges. Make sure the ITU Detensioner is removed. Remove the Detensioner by pulling up on the red handle on the right side of the ITU. Note: All the print cartridges must be removed to gain access to the Detensioner packing material. Has all packing material been removed from the printer? Go to step 2 Remove any remaining packing material from the printer
2-42Service Manual 5060-4 xx 2Check the ITU Release Lever for correct operation. The ITU Release Lever is the black lever located on the left upper side frame above the ITU opening and can be seen by opening and lowering the MPF Assembly. When locked the lever should be at the 6 oclock position. When unlocked it should be in a 3 oclock position. Undue pressure is not required to operate the lever. Does the ITU release lever operate correctly?Go to step 3 Repair as necessary 3Check the second transfer roll installation. Is it installed correctly? Go to step 4 Reinstall the second transfer roll. 4Check the display error log in the Diagnostic Menu. Is 100 ITU preceded in the log by a 104 ITU Error? Go to “104 ITU Error” on page 2-44 . Go to step 5 5Remove the ITU assembly and check that the sensor cable is seated in the handle of the ITU assembly correctly. Note: The sensor connector is located on the side of the ITU handle assembly. Is the cable seated correctly? Go to step 6 Reinstall the cable correctly. Check again for a 100 ITU Error. If 100 ITU Error is displayed, go to step 6 6The front contamination shield is attached to the font plate of the ITU frame and lies on the top of the ITU belt. Is the front contamination shield lying on the belt? Go to step 7 Position the shield on top of the belt. 7Make sure the ITU Cleaner Gear (A) is turning. Observe the gear by opening the front Paper Jam Door above the integrated paper tray 1. Observe the white cleaner gear during POR. The gear should turn slowly and smoothly for approximately 8 seconds before the printer displays a 100 ITU error. Is the ITU Cleaner Gear turning? Go to step 11 Go to step 8 Step Action and questions Yes No
Diagnostic information2-43 5060-4xx 8Check to see if the ITU Drive Roll Gear (A) is turning during POR. Observe the gear by opening the MFP door to its horizontal position. Observe the gear on the left end of the ITU Drive Roll. The ITU Drive Roll Gear should turn for a few seconds slowly and smoothly before the printer posts a 100 ITU error. Does the Gear turn? Go to step 10 Go to step 9 9Check to see if the ITU Drive Motor is turning during POR. Observe the ITU Motor during POR by removing the Rear Cover. Is the ITU Drive Motor turning? Replace the “ITU drive assembly” on page 4-44 Go to step 10 10Check the printer is setting on a solid flat surface. Is the printer setting on a solid flat surface? Go to step 11 Place the printer on a solid flat surface. 11Make sure the ITU drive motor assembly cable is correctly installed to the ITU drive motor and at connector location J64 on the system board. Is the cable correctly installed? Go to step 12 Install the cable correctly 12Make sure the ITU Autoconnect Cable is installed correctly at connector location J72 on the system board. Is the cable correctly installed? Go to step 13 Install the connector/cable correctly 13Make sure the ITU Autoconnect connector in the printer is seated correctly in the connector plate. Is the connector seated correctly? Replace the following FRUs in the following order: 1. “ITU assembly” on page 4-44 . 2. “System board” on page 4-72 .Replace the ITU Autoconnect cable. Step Action and questions Yes No
2-44Service Manual 5060-4 xx 104 ITU Error The ITU has an optical sensor that watches for a piece of reflective tape on the inside of the image belt. This tape is read every revolution of the belt. If a signal is not received from the belt sensor within a certain time period, the printer posts an error due to the loss of signal. There are several causes for the loss of signal. First, the belt has tracked too far to the front or rear of the printer. In this case, the belt is still turning, but the reflective tape is no longer passing within view of the belt sensor. This is considered a belt tracking error and is posted as a 104 ITU Error. The other causes of a signal loss could be a belt stall, meaning the belt is not turning, or a true signal loss, which would be due to a bad sensor, broken cable, loose connection, or bad system board. These other causes post as a 100 ITU Error. To assist the printer in determining what is the cause of a signal loss, there is a buffer that records the belt position for the last 50 revolutions. If the printer loses the belt signal, it refers to the buffer. If the buffer shows significant mistracking before signal loss, it will post a 104 ITU Error. If the buffer shows that the belt has been tracking in the center before signal loss, it posts a 100 ITU Error. Due to memory restrictions, the buffer is not saved during POR. This means, if a printer posts a 104 ITU Error, so the belt is tracked off, and the customer or servicer turns off the printer to clear the error, when the printer starts up, it will still not see the belt signal and will now post a 100 ITU Error because the buffer is empty. When servicing a printer for a 100 ITU Error, it is important to view the error log. See “Display Log” on page 3-35. The error log can only be displayed at this point. Do not try to print the log. Look for past occurrences of 100 ITU Errors preceded by a 104 ITU Error. Step Action and questions Yes No 1 Make sure all packing material is removed from the printer. The Detensioner is located underneath the toner cartridges. Make sure the ITU Detensioner is removed. Remove the Detensioner by pulling up on the red handle on the right side of the ITU. Note: All the print cartridges must be removed to gain access to the Detensioner packing material. Has all packing material been removed from the printer? Go to step 2 Remove any remaining packing material from the printer 2Check the ITU Release Lever for correct operation. The ITU Release Lever is the black lever located on the left upper side frame above the ITU opening and can be seen by opening and lowering the MPF Assembly. When locked the lever should be at the 6 oclock position. When unlocked it should be in a 3 oclock position. Undue pressure is not required to operate the lever. Does the ITU release lever operate correctly? Go to step 3 Repair as necessary 3Check the second transfer roll installation. Is it installed correctly? Go to step 4 Reinstall the second transfer roll.