Lexmark X 850 Owners Manual
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Diagnostic aids3-23 7500-XXX Touch Display Log, and a graphic similar to the following appears on the LCD: Each logged event is identified by the text that appeared when the event occurred. For instance, if the log recorded a 900 Service Error, the Display Log would show 900 Service RIP Software. Log entries appear in chronological order. If additional log entries exist, touch to view the next log entries. Continue following this procedure until you reach the end of the logged entries. To view earlier log entries, touch . Touch Back to return to the EVENT LOG.
3-24MFP Service Manual 7500-XXX Print the Event Log Each page of the printed Event Log report has the title Event Log at the top of each page followed by the model name and serial number. The following is a sample of a printed Event Log: As the Event Log report prints, Printing EVENT LOG appears on the LCD. Clear the Event Log To clear the Event Log: 1.Touch Event Log from the Diagnostics Menu. 2.Touch Clear Log. Ye s and No appears on the menu. If you touch Ye s, Deleting EVENT LOG appears on the LCD and erases all Event Log information, including information from the printed report. Touch No to cancel deletion and return to the EVENT LOG menu, or touch Back to exit Clear Log and return to the EVENT LOG menu. XXX-XXXXModel and Serial number Printer information Page count Panel display when error occurred Earliest error code Next error codeX854e
Diagnostic aids3-25 7500-XXX SCANNER TESTS ASIC Test This operation performs a diagnostic test on the scanner ASIC that cycles through all of the scanner ASICs memory. To perform the ASIC Test: 1.Touch SCANNER TESTS from the Diagnostics Menu. 2.Touch ASIC Test. During this test, ASIC Test Running... appears on the LCD. At the completion of this test, ASIC Test Passed or ASIC Test Failed appears on the LCD. To clear the message, press Stop . Feed Test This test continuously executes flatbed and/or ADF scans but does not produce any printed output. To perform the Feed Test: 1.Touch SCANNER TESTS from the Diagnostics Menu. 2.Touch Feed Test. You are prompted to select a paper size for the ADF. For flatbed scans, the full length of the flatbed is traversed. The device decides whether to run the flatbed or the ADF according to the following flowchart: During the test, Running... Flatbed:xxxxx ADF:xxxxx appears on the LCD. The Flatbed number increases each time the scanner performs a flatbed scan, and the ADF number increases each time the scanner performs an ADF scan. Press Stop to end this test. If an error occurs (such as a scanner jam), Feed Test Failed Flatbed:xxxxx ADF:xxxxx appears on the LCD. To clear the message, press Stop . Paper in ADF? Scan the full length of the flatbed. Scan all pages from the ADF, assuring selected paper size.No Yes
3-26MFP Service Manual 7500-XXX Scanner Manual Registration Note: All scanner and ADF manual registration alignment verifications must be done in standard user mode, not in configuration or diagnostic mode. Note: You should verify the printer registration alignment before conducting the manual scanner registration process. For information on the printer registration process, see “REGISTRATION” on page 3-36. You can adjust the devices scanner and ADF registration through a manual process. Perform this operation when any of the following events occur: •The flatbed scanner unit assembly has been replaced. •The ADF unit assembly has been replaced. •The CCD card/lens assembly has been replaced. •Symptoms indicate that the scanner is not properly aligned. Printing the registration test original page Perform this process to acquire the registration test original page. This is the page required to align the registration for the flatbed scanner and ADF side 1 and ADF side 2. 1.Ensure the printer media tray registration in all trays is set correctly. 2.Enter configuration menu. Go to “Configuration Menu” on page 3-33. 3.Touch REGISTRATION. 4.Touch Quick Test. At this time the registration test original page will be printed. The registration test original page should appear as shown in graphic below:
Diagnostic aids3-27 7500-XXX Testing the manual scanner registration Note: Machine must be in Standard User Mode. To properly position the registration test original page on the flatbed scanner and the ADF side 1 and ADF side 2, follow the graphic below: Warning: Ensure that the registration test original page is properly positioned according to the diagrams or registration and margins cannot be properly adjusted. 1.Place the registration test original page on the flatbed scanner according to the graphic below. 2.Make a copy of the registration test original page and mark it “Flatbed”. 3.Place the registration test original page, image side up, in the ADF according to the diagram below. This will be the ADF side 1 registration test. 4.Make a copy of the registration test original page and mark it “ADF side 1”. 5.Place the registration test original page, image side down, in the ADF according to the diagram below. This will be the ADF side 2 registration test. 6.Select “2 sided to 2 sided” while in copy mode to ensure that the rear side of the test original is copied. 7.Make a copy of the registration test original page and mark it “ADF side 2”. Note: You should now have three test copies of the registration test original page.
3-28MFP Service Manual 7500-XXX Analyzing the manual scanner registration copies 1.To analyze the manual scanner registration of the flatbed, ADF side 1, and ADF side 2, hold the test copy according to the diagram below. 2.Compare the three copies to the registration test original page for image placement. Ideally, the image should be centered on the page by measuring the paper edge arrows or the black lines with a ruler. 3.If the leading and side margin edges are out of adjustment, then proceed to manually adjust the scanner and/or ADF side 1 and ADF side 2 registration. Note: Margin tolerance is +/- 2 mm. Manually adjusting the scanners registration 1.Enter Diagnostics Menu. Go to “Diagnostics Menu” on page 3-1. 2.Touch SCANNER TESTS. 3.Touch Scanner Manual Registration. Note: Refer to analyzing the manual scanner registration copies. See “Analyzing the manual scanner registration copies” on page 3-28.
Diagnostic aids3-29 7500-XXX 4.Make required adjustments and touch Submit. Note: All reference to Side Registration in the graphic below, refers to the left side edge. 5.Turn the machine off and then back on in order to make a copy. 6.Using the registration test original page, make a copy using the flatbed scanner and the ADF side 1 and ADF side 2 to verify adjustments for accuracy. 7.If further adjustments are required, reenter Diagnostic Menu and repeat items 2 through 6 as needed. The panel displays the following settings: 1Each increment of adjustment corresponds to: •1 scan at 300 dpi for the Lead Margin setting or •1 pel at 300 dpi for each Side Margin setting 2Decreasing the registration value moves the text toward the left side edge of the page; increasing the registration value moves the text away from the left side edge of the page. The entire image moves left or right on the page; therefore, no compression or expansion of the image occurs to preserve the left side margin. Margin Setting Range 1Units Flatbed Side Registration 20 - 240 1/300 inch Flatbed Lead Registration 316 -184 1/300 inch ADF Side1 Side Registration 40 - 240 1/300 inch ADF Side1 Lead Registration 50 - 214 1/300 inch ADF Side2 Side Registration 40 - 240 1/300 inch ADF Side2 Lead Registration 50 - 214 1/300 inch
3-30MFP Service Manual 7500-XXX 3Decreasing the registration value moves the text toward the lead edge of the page and narrows the lead margin; increasing the registration value moves the text away from the lead edge of the page and widens the lead margin. The entire image moves up or down on the page; therefore, no compression or expansion of the image occurs to preserve the lead margin. 4Decreasing the registration value moves the text away from the left side edge of the page; increasing the registration value moves the text toward the left side edge of the page. The entire image moves left or right on the page; therefore, no compression or expansion of the image occurs to preserve the left side margin. 5Decreasing the registration value moves text away from the lead edge of the page and widens the lead margin; increasing the registration value moves the text toward the lead edge of the page and narrows the lead margin. The entire image moves up or down on the page; therefore, no compression or expansion of the image occurs to preserve the lead margin. Touch Submit to save the changes. Submitting Changes... appears on the LCD. Touch Back to return to the Scanner Manual Registration screen without saving changes. Scanner manual registration factory defaults The factory scanner manual registration default settings are located on a label at the rear of the machine. Use the label values to reset the factory default settings when the current settings appear to be extremely out of range. An example of this label is shown below. Note: The values listed below should be consider examples. They may not match the label attached to the rear of the machine. Use the following diagram to cross reference the chain-function on the label to the text on the touch screen found in diagnostic mode when resetting the scanner manual registration factory default values. Chain-Function Values 715-050 89 715-053 127 711-140 183 711-141 193 715-110 124 715-111 127 Chain-Function Values Touch screen description 715-050 89 Flatbed lead registration 715-053 127 Flatbed side registration 711-140 183 ADF side 1 lead registration 711-141 193 ADF side 2 lead registration 715-110 124 ADF side 1 side registration 715-111 127 ADF side 2 side registration
Diagnostic aids3-31 7500-XXX Sensor Test (Scanner Tests) To perform the Sensor Test: 1.Touch SCANNER TESTS from the Diagnostics Menu. 2.Touch Sensor Test. The following example appears on the LCD: Press Stop to return to the SCANNER TESTS. Platen length APS 1 Platen length APS 2 ADF left cover interlock ADF pre registration ADF registration Sheet through ADF inverter Tray media width 1 Tray media width 2 Tray media width 3 ADF width APS 1 ADF width APS 2 ADF width APS 3 Tray media length 1 Tray media length 2 Pick roll position HP Document set ADF angle Scanner HP Platen interlock
3-32MFP Service Manual 7500-XXX Exiting Diagnostics Menu From the Diagnostics Menu, touch Back until a graphic appears with Exit Diag Menu in the lower right corner. Touch Exit Diag Menu to perform a POR, and the following graphic appears on the LCD: Copy E-Mail Fax FTP Menus Ready. Toner low. Touch any button to begin. Status/ Supplies