Xerox Phaser 740 free download

File name 01_gen-info.pdf

General Information This service guide contains information useful for troubleshooting, repairing, adjusting, and maintaining a Tektronix Phaser® 740 and 740L Color Printer. This manual includes troubleshooting guides, adjustment procedures and a field replaceable units (FRU) list. Topics such as printer theory of operation, detailed removal/replacement procedures, configuration page details, and verifying printer operation are located on the companion Color Printer Service & Support Resources CD-ROM. To ensure a complete understanding of the product, we recommend participation in Phaser 740 service training. A4 R PE PA 3102-01 The Phaser 740 Color Printer Service Guide 1 The Phaser 740 Color Printer The Phaser 740 Color Printer combines a color laser, continuous-tone print engine with an image processor supporting Adobe's PostScript Level 3 page description language. The image processor features a bi-directional parallel interface and a 10baseT Ethernet port for host communication. Optional network adapter cards to the image processor allow the printer to communicate on networks using LocalTalk, Ethernet 100baseT or Token Ring protocols. The Ethernet network card supports EtherTalk 100baseT, Novell and TCP/IP. With the Token Ring network card, the printer supports Token Ring protocols. With 32 Mbytes of RAM installed, the printer supports the color PCL5C printer language too. The printer is available in four configurations: s The Phaser 740L is a monochrome version of the printer which can easily be customer-upgraded to be a color printer. It prints at a resolution of 600 x 600. It is equipped with 16 Mbytes of RAM which can be supplemented with an additional RAM DIMM. The printer contains 136 standard, built-in fonts. The Phaser 740L is identical to the Phaser 740 except is set to only use a black toner cartridge. It features a removable plate which blocks out the locations of the color cartridges. The Phaser 740 Base comes standard with 32 Mbytes of RAM which can be supplemented with one or two additional 16-, 32-, 64- and 128-Mbyte RAM DIMMs; maximum usable capacity is 80 Mbytes. The printer contains 136 standard, built-in fonts. The printer contains 136 standard, built-in fonts. The Phaser 740 Base prints at a resolution of 600 x 600 dots-per-inch. The Phaser 740 Plus includes 32 Mbytes of additional memory (64 Mbytes total) and a SCSI interface board. The presence of the SCSI board (and the extra memory) enables the printer to print at higher resolutions 1200 x 1200 (Premium mode) dots-per-inch and also support image pipelining for greater throughput, a print collation mode, and a "check print before proceeding with job" mode. The printer contains 136 standard, built-in fonts. The Phaser 740 Extended (a factory-only option) features a different ROM SIMM than the other printers. It includes 128 Mbytes total memory, SCSI port, 1200 x 1200 color printing, check print mode, print job collation (requires hard drive), copystation support

File name 02_error codes.pdf

Error Codes and Messages Error messages Generally, the top line of the two-line front panel display indicates the printer's status, such as Ready, Printing, Busy, or Stopped. The bottom line indicates the function of the three buttons located immediately below the LCD. The front panel also displays error codes when it encounters certain system failures. These error codes are discussed in the next topic. When an error code first occurs, cycle power on the printer to see if the error re-occurs. Print engine error codes The following table list the engine failure codes that may be displayed on the printer's front panel during normal printer operation. Print engine service error codes Error code 1, 2, 3, 4 Meaning of error code and what to do about it Black, Cyan, Magenta, Yellow (respectively) toner cartridge movement error. 1. Push the indicated toner cartridge toward the imaging unit. Does it require more force to push that cartridge than the other toner cartridges? 2. Inspect the wiring harness leading from the toner cartridge selector/eject unit to CN6 of the engine control board. 3. Check the cam motors for proper operation toner cartridge selector/eject. 4. Inspect the cam motor drive gears in the toner cartridge selector/eject. 5. Check the cam motor flags and sensors toner cartridge selector/eject. 6. Replace the toner cartridge selector unit. 7. Replace the indicated toner cartridge. 05 Toner cartridge/fuser fan error. 1. Is +24 VDC being supplied to the fan from the engine control board's CN24 pins 1 and 2? If it is, replace the fan. If not, replace the engine driver board. 10 Laser scanner motor unlocked. 1. 2. 3. 4. 5. Inspect the wiring harnesses leading to the laser scanner. Replace the laser motor drive board. Replace the laser scanner. Replace the engine control board. Replace the power supply. Service Guide 21 Print engine service error codes Error code 11 Meaning of error code and what to do about it Laser down. 1. Replace the laser motor drive board. 2. Replace the laser scanner. 3. Replace the engine control board. 12 L-sync over time. 1. Inspect the wiring harnesses leading from the laser driver board to CN4. CN7, CN8 and CN 29 of the engine control board. 2. Replace the laser motor drive board. 3. Replace the laser scanner. 4. Replace the engine control board. 13 L-sync under time. 1. 2. 3. 4. Cycle printer power and try printing again. Replace the laser motor drive board. Replace the laser scanner. Replace the engine control board.t 22 Phaser 740 Color Printer Print engine service error codes Error code 20 Meaning of error code and what to do about it High voltage error. Main charge grid charger 1. Ensure that the imaging unit is properly installed and locked in place. 2. Ensure the main charge grid is properly installed. Ensure the main charge grid is clean with no foreign matter in the area. Also ensure the wire and grid plate are in good condition. 3. Inspect the wiring leading from the high voltage board to the mai

File name 02_errorcodes.pdf

Error Codes and Messages Error messages Generally, the top line of the two-line front panel display indicates the printer's status, such as Ready, Printing, Busy, or Stopped. The bottom line indicates the function of the three buttons located immediately below the LCD. The front panel also displays error codes when it encounters certain system failures. These error codes are discussed in the next topic. When an error code first occurs, cycle power on the printer to see if the error re-occurs. Print engine error codes The following table list the engine failure codes that may be displayed on the printer's front panel during normal printer operation. Print engine service error codes Error code 1, 2, 3, 4 Meaning of error code and what to do about it Black, Cyan, Magenta, Yellow (respectively) toner cartridge movement error. 1. Push the indicated toner cartridge toward the imaging unit. Does it require more force to push that cartridge than the other toner cartridges? 2. Inspect the wiring harness leading from the toner cartridge selector/eject unit to CN6 of the engine control board. 3. Check the cam motors for proper operation toner cartridge selector/eject. 4. Inspect the cam motor drive gears in the toner cartridge selector/eject. 5. Check the cam motor flags and sensors toner cartridge selector/eject. 6. Replace the toner cartridge selector unit. 7. Replace the indicated toner cartridge. 05 Toner cartridge/fuser fan error. 1. Is +24 VDC being supplied to the fan from the engine control board's CN24 pins 1 and 2? If it is, replace the fan. If not, replace the engine driver board. 10 Laser scanner motor unlocked. 1. 2. 3. 4. 5. Inspect the wiring harnesses leading to the laser scanner. Replace the laser motor drive board. Replace the laser scanner. Replace the engine control board. Replace the power supply. Service Guide 21 Print engine service error codes Error code 11 Meaning of error code and what to do about it Laser down. 1. Replace the laser motor drive board. 2. Replace the laser scanner. 3. Replace the engine control board. 12 L-sync over time. 1. Inspect the wiring harnesses leading from the laser driver board to CN4. CN7, CN8 and CN 29 of the engine control board. 2. Replace the laser motor drive board. 3. Replace the laser scanner. 4. Replace the engine control board. 13 L-sync under time. 1. 2. 3. 4. Cycle printer power and try printing again. Replace the laser motor drive board. Replace the laser scanner. Replace the engine control board.t 22 Phaser 740 Color Printer Print engine service error codes Error code 20 Meaning of error code and what to do about it High voltage error. Main charge grid charger 1. Ensure that the imaging unit is properly installed and locked in place. 2. Ensure the main charge grid is properly installed. Ensure the main charge grid is clean with no foreign matter in the area. Also ensure the wire and grid plate are in good condition. 3. Inspect the wiring leading from the high voltage board to the mai

File name 03_troubleshoot.pdf

Troubleshooting This topic discusses troubleshooting the printer. Troubleshooting is discussed with two approaches: s A step-by-step verification procedure that systematically confirms that particular components of the printer are properly functioning until a problem is found. A symptom/cause scheme that lists particular printer failures and error codes and their possible causes. s System power-up sequence The following lists the chain of events that occur when you turn on the printer. Follow this list as one means of determining if the printer is operating correctly. When the power switch is turned on, these events occur: s s s s The engine control board checks its RAM. All the engine fans are turned on to ensure they work properly. The fuser heater (a halogen lamp) is activated to heat up the heated roller. The position of each toner cartridge is checked to ensure they are in their parked positions. The print engine checks to see that the imaging unit and the paper feeder are installed. The engine motors are rotated to ensure that their rotation sensors are detected. A check is made to determine if any paper is jammed in the printer. The print engine checks the level of toner in each toner cartridge. After the fuser reaches its idle temperature the printer is placed on line in its READY state. s s s s s The print engine is initialized. If the startup page feature has not been disabled and no error occurred with the printer, the printer prints a startup page. Service Guide 31 Print engine troubleshooting This topic is a step-by-step procedure for systematically verifying particular aspects of the printer's operation. Following this procedure should lead to the cause of a printer's failure. Testing the print engine 1. If the printer does not power up, or does not initialize, or the printer initializes but the motors do not run properly, go to the later topic, "Verifying power supply operation" on page 33. 2. Observe that the Ready message is displayed on the front panel. If it is not, go to the later topic "Verifying power supply operation" on page 33. 3. Verify that the image processor's health LED is flashing. The health LED is viewable through the grill behind the manual feed tray (when the tray is lowered). 4. Press and hold the test button for 4 seconds (on the rear of the printer in the center of the rear cabinet panel). The print engine responds by making a parallel line test print. If the printer prints a test print, then the printer's print engine is working correctly. Proceed with the next topic, "Verifying printer operation by using its self-test print" on page 33. If the printer does not make the test print, then a problem exists with the printer. Proceed with the topic, "Verifying power supply operation" on page 33. 32 Phaser 740 Color Printer Verifying printer operation by using its self-test print 1. If not already on, turn on the printer. If the printer does not power up, or does not initialize, or the printer in

File name 04_adjust.pdf

Service Tests and Adjustments This topic discusses using the front panel's interactive mode to review and change the printer's operation. It also contains the procedures to test and calibrate the printer after you replace key Field Replaceable Units and to evaluate the printer's functionality. Required tools s s Magnifying lens (preferably illuminating) Phillips screwdriver Service Guide 55 Printing test prints The prints printed via the front panel are generated by the image processor. While the printer is idle you can use the front panel to print an image stored in the image processor such as the Configuration Page. Print service test prints The service prints allow you to evaluate the printer's print quality. Service Print 1 is four pages of 25% tint primary color fills and one page of all for colors at 25% fill. Service Print 2 prints a 600 and 1200 dpi test pattern as well as a solid-fill red print. 1. Press the Menu button. 2. With the Help pages menu displayed, scroll to the Service Print 1 or Service Print 2 menu item. Press Print. Printing the Configuration Page The configuration page shows a great deal of information regarding the data and setup values stored in NVRAM. In the same Help pages menu you can also print the startup page. 1. Press the Menu button. 2. With the Help pages menu displayed, scroll to the Configuration Page menu item. Press Print. Printing the demonstration pages Demo pages demonstrate the capabilities of the printer. 1. Press the Menu button. 2. With the Help pages menu displayed, scroll to the Demonstration Page item. Press Print. Printing the print engine's test print The print engine can print a test print independent of the image processor. The print is a composite gray fill composed of cyan, magenta and yellow toner. No black toner is used in the print. 1. Press and hold for 4 seconds the Test Print button in the center of the upper rear cover. This verifies the print engine's ability to print independent of the image processor. Do not use this print to verify print quality. Since the print engine defaults to the top tray as a paper source, the Test Print function will not work with the auto-duplex unit installed. 56 Phaser 740 Color Printer Printer self-diagnostics The printer's image processor features four types of self-test modes. The type of selftests run depend upon which front panel buttons are pressed while the printer is turned on. The button combinations are listed here. s Turning on the printer or restarting the printer remotely executes normal image processor power-up self-tests and then, if the tests pass, proceed to launch its PostScript interpreter. Pressing and holding Button 3, as you turn on the printer, executes interactive service test with the image processor board and the print engine. Pressing and holding Button 1 and 4, as you turn on the printer, allows you to reset the NVRAM to its factory-default values. Refer to the later topic, "Resetting NVRAM" on page 67. This a

File name 05_clean.pdf

Cleaning and Maintenance Service preventive maintenance procedure Whenever you check, service, or repair a printer, you should perform the following procedures. Cleaning the printer, as outlined in the following steps, assures proper operation of the printer and reduces the probability of having to service the printer in the future. The frequency of use and the type of paper a customer prints on determines how critical cleaning the machine is. Users of ordinary Bond paper (copier paper) should have very few problems since this paper is smooth and relatively dust-free. You should thoroughly inspect and clean these printers. Ask each printer customer about the type of paper he or she uses so that you can be sure to clean the parts of the printer that particular paper may affect. If a customer is printing on the more unusual or dustier papers, then you should pay particular attention to these printer parts: s s s The standard pick roller The multi-purpose pick roller (should be replaced at 30 k prints) The multi-purpose tray cork separator (should be replaced when multipurpose pick roller is replaced) The feed rollers The auto-duplex unit rollers The cabinet interior The exit rollers s s s s Service Guide 63 Recommended tools s s s s s s s Toner vacuum cleaner Suction bulb (air blower) Cleaning water Lint-free wipes Cotton swabs Imaging unit cover Isopropyl alcohol (greater than 90% pure) Cleaning 1. Turn off the printer. 2. Remove the imaging unit and immediately cover it to protect it from the light. 3. Remove the toner cartridges. 4. Remove the fuser. 5. Remove the paper tray. 6. Slide out the paper feeder. 7. Clean the accumulator belt home position sensor with a dry cotton swab. 8. Clean all printer rollers, except the second bias transfer roller, with alcoholdampened wipes only. Never apply alcohol on the second bias transfer roller. 9. Clean the laser window with puffs of air from the suction bulb. Alternately, you can vacuum the window clean. 10. Wipe off the pre-exposure lamp bezel and the pre-transfer lamp bezel with a lint-free wipe. 11. Vacuum out the interior of the printer. 64 Phaser 740 Color Printer 12. Carefully clean the area around the second bias transfer roller's cleaning roller for impacted toner. a. b. c. Remove the second bias transfer roller Tap on the cleaning roll cover to knock the toner loose from that area. Vacuum the toner. Lubrication s Molybdenum-based (brown) grease, part number 006-7436-00. For all metal-to-metal, metal-to-plastic, and plastic-to-plastic gears. High-temperature, electrically-conductive grease, part number 006-7056-00. For the plastic gears of the fuser and the end of the transfer roller shaft. s Service Guide 65 66 Phaser 740 Color Printer

File name 06_nvram.pdf

Resetting NVRAM Resetting NVRAM returns all the image processor's NVRAM-stored parameters to their factory defaults except the print counts and the Adobe firmware serial number. To reset the image processor to its factory default values, follow this procedure: 1. Turn the printer off. 2. Press and hold the front panel Buttons 1 (Exit) and 4. 3. Turn the printer on. 4. When the front panel displays the message NVRAM Default, release Buttons 1 and 4. 5. At this point the message password? will be displayed. Within 10 seconds, press Buttons 1 (Exit) and 3 at the same time. The NVRAM parameters will be reset to their factory default values. If you do not press buttons 1 and 3 in the allotted time, the NVRAM will not be changed. Service Guide 67 68 Phaser 740 Color Printer

File name 07_disass.pdf

Key FRU Disassembly This topic illustrates how to remove and replace key printer Field Replaceable Units (FRUs). Refer to the later topic "FRU List" on page 87 for a list of the printer's FRUs. For more detailed removal/replacement procedures refer to the Phaser 740 Service CDROM. Printer cabinet Top cover Hinge frame Conical spring Hinge pin Door Retainer hooks Left side cover Upper rear cover Lower rear cover Multi-purpose tray Left door 740-7-1 Removing cabinet covers Service Guide 69 Toner level sensor board Right side covers Rear Front Upper front cover Front door Bottom front cover (lift printer to remove) Lower (lift printer to remove) 740-7-2 Removing cabinet covers 70 Phaser 740 Color Printer EMI shields EMI shield Interconnect wiring shield 740-7-3 Removing the EMI shields Note Unplug the engine-to-image processor cable from the engine control board. Service Guide 71 Cartridge selector/eject unit (right door) 1. Disconnect the cartridge selector/eject unit's wiring harness. 2. Counting from the rear of the shaft, remove the third E-ring from the cartridge selector/eject unit's shaft. 3. Remove the E-ring and keyed bushings from each end of the cartridge selector/eject unit's shaft. 4. Remove the E-ring second from the front of the cartridge selector/eject unit's shaft. Caution In the next step, do not bend the frame to give additional clearance, as a damaged frame is not replaceable. 5. Unlatch the cartridge selector/eject unit and lower it half-way down to relieve spring pressure to enable moving the cartridge selector/eject unit's shaft. Slide the shaft forward until it clears the frame. If necessary, tap the rear end of the shaft with a screwdriver handle (no metal) to move it forward. 6. Unhook the tension springs at each end of the shaft from the engine frame. Note how they fasten to the frame and the right door. 7. Beginning at the rear, remove the cartridge selector/eject unit. 72 Phaser 740 Color Printer Cartridge selector/ eject unit (right door) Remove E-ring and bushing E-ring Keyed bushing Frame Spring Keyed Washer Washer Remove E-ring Disconnect wiring harness Remove E-ring and bushing Removing the cartridge selector/eject unit Washer Keyed Washer Spring Frame Keyed bushing E-ring 740-7-7 Service Guide 73 Paper feeder and tray sensor board Paper tray sensor board Paper feeder Back-out stop screws 740-7-4 Removing the paper feeder 74 Phaser 740 Color Printer Multi-purpose tray pick roller The multi-purpose pick roller should be replaced whenever the cork separator pad is replaced. The expected life of each is about 30k prints. 1. With a small, narrow, flat-blade screwdriver, carefully release the snap-fit cover over the multi-purpose tray pick roller. Small access holes allow you to access the five retaining latches. 2. Remove the C-clip retainer from the pick roller shaft. 3. Slide the right-end pick roller retainer on its shaft about 75 mm (3 in.) towards the front of the pr

File name 08_fru.pdf

FRU List This topic provides a list of field replaceable units for the printer. Changes to Tektronix instruments are made to accommodate improved components as they become available. It is important when ordering parts to include the following information: s s s s Component's part number. Instrument type or number. Instrument serial number. Modification number, if any. Service Guide 87 Table 1 FRU parts list of the printer cabinet Fig 1 parts 1 2 3 4 5 6 7 Part number 118-9893-00 118-9892-00 118-9537-00 118-9208-00 118-9894-00 118-9541-00 116-0024-00 118-9996-00 118-9622-00 118-9604-00 118-9606-00 Serial number Effective Discont'd Qty 1 1 1 1 1 1 1 Name and description Front door with hinges Upper front cover (operation panel) w/display board Right side cover rear Right side cover front Right side cover lower Bottom front cover Output tray (standard) Lower feeder front cover Lower feeder left cover Lower feeder right cover Lower feeder rear cover 7 3 2 4 4 6 5 1 3102-26 Figure 1 Cabinet FRUs 88 Phaser 740 Color Printer Table 2 FRU part list of the printer cabinet Fig 2 parts 1 2 3 4 5 6 Part number 118-9891-00 118-9889-00 118-9890-00 118-9888-00 118-9979-00 118-9522-00 118-9543-00 Serial number Effective Discont'd Qty 1 1 1 1 1 1 Name and description Lower rear cover Upper rear cover (110 VAC) Upper rear cover (220 VAC) Top cover with logos Left side cover Multi-purpose feed tray assy Left side door assy 3 2 4 5 1 6 3102-27 Figure 2 Cabinet FRUs Service Guide 89 Table 3 Motors, drive units and fans Fig 3 parts 1 2 3 4 5 6 Part number 118-9897-00 118-9551-00 118-9905-00 118-9514-00 118-9524-00 118-9553-00 Serial number Effective Discont'd Qty 1 1 1 1 1 1 Name and description Toner cartridge selector/paper-eject unit Fan, power supply Toner cartridge drive motor Toner cartridge drive unit Fan, ozone filter Gear kit, Main motor drive Motor compound gear Intermediate compound gear Gear kit, Paper feeder joint and chassis White joint gear Black compound gear Main motor Paper feed motor Fan, fuser/toner cartridge 7 118-9562-00 1 8 9 10 118-9900-00 118-9899-00 118-9524-00 1 1 1 90 Phaser 740 Color Printer 1 3 5 2 6 4 9 8 7 10 3102-37 Figure 3 Motor and fan FRUs Service Guide 91 Table 4 Sensors, switches and flags Fig 4 parts 1 2 3 Part number 118-9552-00 118-9547-00 118-9558-00 Serial number Effective Discont'd Qty 1 1 Name and description Switch, front/right door open sensor Toner level sensor board Paper feed flag kit Paper tray empty Multi-purpose tray entrance flag Jam at A flag Output tray full flag 1 1 1 1 1 Tray sensor board Left-side door-open switch Accumulator belt home-position sensor assembly Humidity/temperature sensor Switch, main power (110 V) Switch, main power (220V) 4 5 6 7 8 118-9913-00 118-9550-00 118-9519-00 118-9918-00 118-9909-00 118-9910-00 92 Phaser 740 Color Printer 1 2 4 8 3 7 6 5 3102-40 Figure 4 Sensor, switch and flag FRUs Service Guide 93 Table 5 Circuit board and ele

File name 09_testprint.pdf

Test Prints This appendix illustrates the test prints produced by the print engine. It also illustrates a number of defective prints and the reason for the defects. The topic "Printing and print quality problems" on page 47 discusses solutions to the problems shown in this appendix. Consumables Print consists of four 25% tint primary color bands and "gas gauges" for each consumable. Service Print 1 prints out four 25% tint full page fills, each page one primary color. Service Print 2 produces a 1200 dpi test print, a solid red fill prints and a 600 dpi test print. From the Help Pages menu in the front panel, select Consumables Page Consumables page <-----> Print Toner Black OK Page Remaining: >500 @ 5% coverage Your average coverage/page: TBD% Power Error Magenta = OK Cyan OK Yellow OK Page Remaining: >500 @ 5% coverage Your average coverage/page: TBD% Page Remaining: >500 @ 5% coverage Your average coverage/page: TBD% Page Remaining: >500 @ 5% coverage Your average coverage/page: TBD% Imaging Unit Life Remaining 0% Count (Pages) Serial # Avg. Toner Coverage/Color Date Installed 50% % Main Charge Grid Life Remaining 0% Count (images) 50% % 100% 100% Fuser Life Remaining 0% Count (Pages) Serial # Avg. Toner Coverage/Color Date Installed 50% % Fuser Roll Life Remaining 0% Count (Pages) 50% % 100% 100% Transfer Kit Life Remaining 0% Count (Pages) 50% % 100% From the Help Pages menu in the front panel, select Service Print 1 Service Print 1 <-----> Print Power Error = Consumables Print Black Black Cyan Magenta Yellow From the Help Pages menu in the front panel, select Service Print 2 Service Print 2 <-----> Print Cyan Magenta Yellow CMYK Power Error = 3102-36 Service Guide 103 Single color mottled or with non-uniform density streaks. If a single color displays a mottled appearance or if a single color shows many vertical streaks of varying densities, then that color's toner cartridge is running of toner. Replace the cartridge. 104 Phaser 740 Color Printer Vertical line or scratch in print, single color If the scratch is of one missing primary color, then the trouble can usually be traced to a scratch in the developer roller of the missing toner's toner cartridge. No toner is transferred from the developer roller to the photoconductive belt at the defect point. Vertical line or scratch in print, all colors The problem may be caused by contamination on the laser window where the laser beam exits the laser scanner and enters the imaging unit. Since the blocked laser beam cannot discharge the portion of the photoconductive belt it cannot reach, toner will not transfer to those portions of the belt. Consequently a blank, vertical line will appear on the prints in all colors. Remove the imaging unit and, with a squeeze bulb, blow any dust or toner off of the window (located in the "ceiling" of the cavity left in the printer once the imaging unit is removed). If it is in all colors then the problem may be in the i

File name 10_wiring-fold.pdf

Wiring Diagram Laser driver CN 1 CN 2 Front panel CN 1 CN 501 CN 502 Interconnect board J490 SCSI Laser scanner CN 4 CN 29 CN 8 CN 7 CN 11 CN 14 CN 2 CN 1 Toner cartridge sub bias board J711 J712 Image processor Parallel Network card J900 J530 High voltage power supply board CN 701 FTR DEV STR CHG PTC GRID Orange Yellow Black Red White Blue Power supply fan CN 301 CN 30 Toner cartridge level sensor (Receiver) and roller clutch board CN 6 CN 619 CN 620 CN 621 CN622 CN623 B Y M C CN 1 Door-open switch Power switch Power supply CN 201 CN 204 CN 25 Engine control board Pre-exposure lamp CN 12 CN 630 CN 10 Charger unit connector Imaging unit Fuser Front door right door closed sensors CN 2 CN 13 CN 632 Accumulator belt position sensor CN 9 Ozone fan Toner cartridge level (transmitter) sensor Pre-transfer lamp CN 607 Temperture/ humidity sensors CN 27 CN 5 CN 23 Left door closed sensor Fuser fan Paper-feed motor Developer cartridge drive motor Main motor Cleaning board CN 618 CN 3 CN 20 CN 24 CN 604 Paper feeder CN 606 CN 605 Aligning sensor Multi-purpose tray empty sensor Multi-purpose tray motor Registration clutch CN 22 CN 617 CN 26 CN 611 CN 15 CN 21 CN 18 CN 17 Exit tray full sensor CN 614 CN 612 CN 613 CN 610 Fuser exit sensor Exit roller sensor board Switchback solenoid Face switching solenoid CN 19 CN 3 CN 615 Toner 3102-29 Paper tray switches Optional lower tray assembly Auto duplex unit cartridge movement sensor Toner cartridge selector/eject CN 616 Cam motor board unit Wiring diagram Service Guide 113 114 Phaser 740 Color Printer

File name 11_notes.pdf

Service Guide 115 116 Phaser 740 Color Printer

File name confi740.pdf

The Configuration Page To provide further diagnostic information, the printer is able to print a Configuration Page. The Configuration Page lists the values the printer stores in its NVRAM. These values can be informative when troubleshooting the printer, particularly networked operations. The Configuration Page gives information such as: s General information about the printer, such as page count, the printer name, Ethernet address, time-outs, number of fonts. Details regarding installed memory Color settings such and Vivid Color. Parallel port settings LocalTalk port settings EtherTalk settings Token Ring settings TCP/IP settings Novell NetWare settings s s s s s s s s Phaser 740 Online Service Information BACK TO MAIN 1 Configuration page settings for a Phaser 740 printer Parameter Printer type Printer name Description The name of the product. The current name of the printer as seen on a network Saved in Default NVRAM yes yes Phaser 740 same as the name of the product 0 No Limits or alternate choices Any name defined by the customer up to 31 characters in length Total number of print jobs processed through the image processor. Startup Page Indicates if the printer prints a Startup enabled Page upon power-up. Serial number Unique number for each printer Ethernet A unique number for each Ethernetaddress capable printer. PostScript Firmware level of the PostScript version interpreter code. Firmware Firmware level of the print engine, image version processor, operating system and network card code. Fonts in ROM Number of font stored in the printers ROM memory. Job Timeout Amount of time a job can take to process. Wait Timeout Amount of time the image processor waits for additional data from a host. Pages printed yes yes yes yes Yes Hardwaredependent Legal values have the form xx:xx:xx:xx:xx:xx yes OS x.xx, PS x.xx, Eng x.xx, Net x.xx 136 yes 0 seconds yes 40 seconds Any value denoted in seconds. 0 means unlimited amount of time Any value greater than 14 denoted in seconds; 0 means unlimited amount of time Phaser 740 Online Service Information BACK TO MAIN 2 Configuration page settings for a Phaser 740 printer (cont'd.) Parameter Manual Feed Timeout Energy Star timeout Check Print Enabled Check Print Timeout RAM memory Print Quality Description The amount of time the printer waits for a user to manually insert a sheet of media for a manual feed print job. Amount of idle time allowed before the printer switches to a low energy power down mode. Indicates if Check Print mode is enabled. Requires extended feature activation. Amount of time the printer waits for confirmation before cancelling a Check Print job. Total amount of RAM on the image processor board. Indicates the combined setting of the /OutputMode and /HWResolution. Indicates the type of color adjustments used to simulate different color uses. Saved in Default NVRAM yes 60 seconds Limits or alternate choices Any integer value; 0 means unlimited amount o

File name Contents.pdf

Contents General Information 1 The Phaser 740 Color Printer 2 RAM and printer capabilities 4 Print engine assemblies 6 The image processor board 9 Front panel 10 Rear panel 12 Network card LEDs 12 Test print button 13 Health LED 14 Media tray type sensing 14 Specifications 16 Regulatory specifications 19 Error Codes and Messages 21 Error messages 21 Print engine error codes 21 Normal power-up self-tests 29 Troubleshooting 31 System power-up sequence 31 Print engine troubleshooting 32 Testing the print engine 32 Verifying printer operation by using its self-test print 33 Verifying power supply operation 33 Measuring power supply voltages 33 Inspecting the power supply fuses 35 Safety interlocks 35 Testing for a shorted motor 37 Media jams and the paper path 37 Media-based problems 37 Media problems 37 Multiple-sheet pick 38 The media skews passing through the paper path 38 Paper tray indicates empty when it is not 38 No paper feeder installed 39 No imaging unit installed 39 Service Guide vii Jams 39 Paper mis-picks at the paper tray 39 Paper jams midway in the paper feeder 40 Paper jams at the second bias transfer roller 40 Fuser jams 41 Eject jams 42 Multi-purpose tray feed jams 42 Jams in the auto-duplex unit 43 Other problems 43 The printer continuously displays "Initializing" 43 No toner cartridge installed message when it is 43 No fuser installed message when it is 44 No fuser roll installed message when it is 44 Front door open when it is closed 44 Left-side door open message when it is not 45 High temperature error 45 Low temperature error 45 High voltage error 46 Thermistor open error 46 Front panel cycling between READY and WARMING UP 46 Erratic printer behavior 46 Installed RAM not recognized 46 Printing and print quality problems 47 Blank print 47 All-black print 47 Missing primary color 48 Light print 48 Repeated spots or lines on print in-line with each other 49 Dark vertical line in print 49 White horizontal line or band in all the colors of a print 49 Vertical lines in the print 50 Dirty background 50 Mis-transfer, missing portions of toner 50 Dark, irregular steaks in all colors 50 Ghosting 51 Unfused or partially fused printing 51 Image is skewed on the paper 51 Stains on the back of the print 51 No printing on edge of print 52 Image is not centered on the print when it should be 52 The print is wrinkled 52 Macintosh printing problems 53 Image never prints 53 Image prints in black-and-white 53 Image is rotated 90 degrees 54 Printer isn't in the Chooser 54 Windows printing problems 54 Image never prints 54 viii Phaser 740 Color Printer Service Tests and Adjustments 55 Required tools 55 Printing test prints 56 Print service test prints 56 Printing the Configuration Page 56 Printing the demonstration pages 56 Printing the print engine's test print 56 Printer self-diagnostics 57 Service tests 57 Print engine calibration 60 Printer color correction 60 Manually setting color corrections 60 Cleaning and Maintenance 63

File name disas740.pdf

FRU Disassembly/Assembly This topic explains how to remove and replace many of the printer's Field Replaceable Units (FRUs). This topic covers procedures for FRUs that are difficult to remove or require special handling or precautions. Phaser 740 Online Service Information BACK TO MAIN 1 The printer cabinet Upper rear cover 1. Remove the four screws securing the upper rear cover in place. Top cover Hinge frame Conical spring Hinge pin Door Retainer hooks Left side cover Lower rear cover Note Note that the lower rear cover clips underneath the printer frame. Lift the printer slightly to remove the lower rear cover in the next step. Upper rear cover 1. Remove the four screws securing the lower rear cover in place. 2. Unlatch the temperature/humidity sensor assembly from the rear panel. Top cover 1. Remove the upper rear cover first. 2. Remove the three screws securing the rear of the top cover in place. 3. The front of the top cover is held by metal tabs. Tilt the cover up from the rear, slide it back slightly and remove. Phaser 740 Online Service Information Lower rear cover Multi-purpose tray Left door 740-7-1 Figure 8 Removing cabinet covers BACK TO MAIN 2 Left door (for paper feeder access) 1. Open the left door. 2. Unhook the retaining strap from the door. 3. Unpin the door from the engine frame. Unpin the rear of the door first. Note the spring on the front hinge. The spring ends are different, so it must be oriented so that the wide end faces the front of the printer. Left side cover 1. Lower the multi-purpose feeder tray. 2. Remove the upper rear cover and top cover. 3. Gently squeeze the plastic retaining hooks at each upper corner of the left side cover to unhook the cover from the printer frame. Tilt forward and remove the cover. 4. Multi-purpose feeder tray. Tilt the tray up slightly and squeeze the tray's retaining pins inward to free it from the print engine frame. Phaser 740 Online Service Information BACK TO MAIN 3 Front door 1. Open the front door. 2. Remove the two screws securing each door hinge to the front door. Toner level sensor board Upper front cover 1. Remove the top cover. Remove the imaging unit. Cover the imaging unit to protect its photoconductive belt from light. 2. Remove the four screws securing the front covers. 3. Disconnect the front panel board's wiring harness and ground wire. 4. To separate the lower front cover from the upper front cover, remove the two screws securing them together. Front door Upper front cover Right side covers Rear Front Bottom front cover (lift printer to remove) Lower (lift printer to remove) 740-7-2 Figure 9 Removing cabinet covers Phaser 740 Online Service Information BACK TO MAIN 4 Bottom front cover Note The bottom front cover clips underneath the printer frame. Lift the printer slightly to remove the cover in the next step. 1. Open the front door. 2. Remove the three screws securing the bottom front cover in place. 3. Tilt the cover forward and remove i

File name Frontis740.pdf

PHASER® 740 and 740L LASER PRINTERS S e rv ic e Q u ic k Re f e re n c e G u id e Warning The following servicing instructions are for use by qualified service personnel only. To avoid personal injury, do not perform any servicing other than that contained in operating instructions unless you are qualified to do so. This printing: May 1999 063-3102-00 Copyright © 1998 by Tektronix, Inc., Wilsonville, Oregon. Printed in the United States of America. All rights reserved. Contents of this publication may not be reproduced in any form without permission of Tektronix, Inc. Tektronix®, Phaser®, and Made for Each Other® are registered trademarks of Tektronix, Inc. TekColorTM, PhaserShareTM, PhaserMatchTM, PhaserLinkTM, FinepointTM and PhaserPrintTM are trademarks of Tektronix, Inc. RealSUPPORTSM and TekColor CareSM are service marks of Tektronix, Inc. Other marks are trademarks or registered trademarks of the companies with which they are associated. September 1998. First printing November 1998. Changed pages: 88, 94, 96, 106, 108 May 1999. Changed pages: 5, 94 TE/mq/mm Users safety summary Terms in manual: CAUTION WARNING Conditions that can result in damage to the product. Conditions that can result in personal injury or loss of life. Power source: For 110 VAC printers, Do not apply more than 130 volts RMS between the supply conductors or between either supply conductor and ground. Use only the specified power cord and connector. For 220 VAC printers, Do not apply more than 250 volts RMS between the supply conductors or between either supply conductor and ground. Use only the specified power cord and connector.Refer to a qualified service technician for changes to the cord or connector. Operation of product: Avoid electric shock by contacting a qualified service technician to replace fuses inside the product. Do not operate without the covers and panels properly installed. Do not operate in an atmosphere of explosive gases. WARNING Turning the power off using the On/Off switch does not de-energize the printer. You must remove the power cord to disconnect the printer from the mains. Keep the power cord accessible for removal in case of an emergency. Safety instructions: Read all installation instructions carefully before you plug the product into a power source. Terms on product: CAUTION A personal injury hazard exists that may not be apparent. For example, a panel may cover the hazardous area. Also applies to a hazard to property including the product itself. DANGER A personal injury hazard exists in the area where you see the sign. Care of product: Disconnect the power plug by pulling the plug, not the cord. Disconnect the power plug if the power cord or plug is frayed or otherwise damaged, if you spill anything into the case, if product is exposed to any excess moisture, if product is dropped or damaged, if you suspect that the product needs servicing or repair, and whenever you clean the product. Ground the product: Plug the three-wire power

File name fru740-1.pdf

Item: 1 Part Number: 118-9893-00 Serial number: Quantity: Description: 1 Front door with hinges 7 3 2 4 4 6 5 1 3102-26 1 MAIN FRU LIST Item: 2 Part Number: 118-9892-00 Serial number: Quantity: Description: 1 Upper front cover (operation panel) w/ display board 7 3 2 4 4 6 5 1 3102-26 2 MAIN FRU LIST Item: 3 Part Number: 118-9537-00 Serial number: Quantity: Description: 1 Right side cover rear 7 3 2 4 4 6 5 1 3102-26 3 MAIN FRU LIST Item: 4 Part Number: 118-9208-00 Serial number: Quantity: Description: 1 Right side cover front 7 3 2 4 4 6 5 1 3102-26 4 MAIN FRU LIST Item: 5 Part Number: 118-9894-00 Serial number: Quantity: Description: 1 Right side cover lower 7 3 2 4 4 6 5 1 3102-26 5 MAIN FRU LIST Item: 6 Part Number: 118-9541-00 Serial number: Quantity: Description: 1 Bottom front cover 7 3 2 4 4 6 5 1 3102-26 6 MAIN FRU LIST Item: 7 Part Number: 116-9536-00 Serial number: Quantity: Description: 1 Output tray (standard) 7 3 2 4 4 6 5 1 3102-26 7 MAIN FRU LIST Item: Part Number: 118-9996-00 Serial number: Quantity: Description: Lower feeder front cover 7 3 2 4 4 6 5 1 3102-26 8 MAIN FRU LIST Item: Part Number: 118-9622-00 Serial number: Quantity: Description: Lower feeder left cover 7 3 2 4 4 6 5 1 3102-26 9 MAIN FRU LIST Item: Part Number: 118-9604-00 Serial number: Quantity: Description: Lower feeder right cover 7 3 2 4 4 6 5 1 3102-26 10 MAIN FRU LIST Item: Part Number: 118-9606-00 Serial number: Quantity: Description: Lower feeder rear cover 7 3 2 4 4 6 5 1 3102-26 11 MAIN FRU LIST

File name fru740-2.pdf

Item: 1 Part Number: 118-9891-00 Serial number: Quantity: Description: 1 Lower rear cover 3 2 4 5 1 6 3102-27 1 MAIN FRU LIST Item: 2 Part Number: 118-9889-00 118-9890-00 Serial number: Quantity: Description: 1 Upper rear cover (110 VAC) Upper rear cover (220 VAC) 3 2 4 5 1 6 3102-27 2 MAIN FRU LIST Item: 3 Part Number: 118-9888-00 Serial number: Quantity: Description: 1 Top cover with logos 3 2 4 5 1 6 3102-27 3 MAIN FRU LIST Item: 4 Part Number: 118-9979-00 Serial number: Quantity: Description: 1 Left side cover 3 2 4 5 1 6 3102-27 4 MAIN FRU LIST Item: 5 Part Number: 118-9522-00 Serial number: Quantity: Description: 1 Multi-purpose feed tray assy 3 2 4 5 1 6 3102-27 5 MAIN FRU LIST Item: 6 Part Number: 118-9543-00 Serial number: Quantity: Description: 1 Left side door assy 3 2 4 5 1 6 3102-27 6 MAIN FRU LIST

File name fru740-3.pdf

Item: 1 Part Number: 118-9897-00 Serial number: Quantity: Description: 1 Toner cartridge selector/paper-eject unit 1 3 5 2 6 4 9 8 7 10 1 3102-37 MAIN FRU LIST Item: 2 Part Number: 118-9551-00 Serial number: Quantity: Description: 1 Fan, power supply 1 3 5 2 6 4 9 8 7 10 2 3102-37 MAIN FRU LIST Item: 3 Part Number: 118-9905-00 Serial number: Quantity: Description: 1 Toner cartridge drive motor 1 3 5 2 6 4 9 8 7 10 3 3102-37 MAIN FRU LIST Item: 4 Part Number: 118-9514-00 Serial number: Quantity: Description: 1 Toner cartridge drive unit 1 3 5 2 6 4 9 8 7 10 4 3102-37 MAIN FRU LIST Item: 5 Part Number: 118-9524-00 Serial number: Quantity: Description: 1 Fan, ozone filter 1 3 5 2 6 4 9 8 7 10 5 3102-37 MAIN FRU LIST Item: 6 Part Number: 118-9553-00 Serial number: Quantity: Description: 1 Gear kit, Main motor drive Motor compound gear Intermediate compound gear 1 3 5 2 6 4 9 8 7 10 6 3102-37 MAIN FRU LIST Item: 7 Part Number: 118-9562-00 Serial number: Quantity: Description: 1 Gear kit, Paper feeder joint and chassis White joint gear Black compound gear 1 3 5 2 6 4 9 8 7 10 7 3102-37 MAIN FRU LIST Item: 8 Part Number: 118-9900-00 Serial number: Quantity: Description: 1 Main motor 1 3 5 2 6 4 9 8 7 10 8 3102-37 MAIN FRU LIST Item: 9 Part Number: 118-9899-00 Serial number: Quantity: Description: 1 Paper feed motor 1 3 5 2 6 4 9 8 7 10 9 3102-37 MAIN FRU LIST Item: 10 Part Number: 118-9524-00 Serial number: Quantity: Description: 1 Fan, fuser/toner cartridge 1 3 5 2 6 4 9 8 7 10 10 3102-37 MAIN FRU LIST

File name fru740-4.pdf

Item: 1 Part Number: 118-9552-00 Serial number: Quantity: Description: 1 Switch, front/right door open sensor 1 2 4 8 3 7 6 5 1 MAIN FRU LIST Item: 2 Part Number: 118-9547-00 Serial number: Quantity: Description: 1 Toner level sensor board 1 2 4 8 3 7 6 5 2 MAIN FRU LIST Item: 3 Part Number: 118-9558-00 Serial number: 1 Quantity: Description: Paper feed flag kit Paper tray empty Multi-purpose tray entrance flag Jam at A flag Output tray full flag 2 4 8 3 7 6 5 3 MAIN FRU LIST Item: 4 Part Number: 118-9913-00 Serial number: Quantity: Description: 1 Tray sensor board 1 2 4 8 3 7 6 5 4 MAIN FRU LIST Item: 5 Part Number: 118-9550-00 Serial number: Quantity: Description: 1 Left-side door-open switch 1 2 4 8 3 7 6 5 5 MAIN FRU LIST Item: 6 Part Number: 118-9519-00 Serial number: Quantity: Description: 1 Accumulator belt home-position sensor assembly 1 2 4 8 3 7 6 5 6 MAIN FRU LIST Item: 7 Part Number: 118-9918-00 Serial number: Quantity: Description: 1 Humidity/temperature sensor 1 2 4 8 3 7 6 5 7 MAIN FRU LIST Item: 8 Part Number: 118-9909-00 118-9910-00 Serial number: Quantity: Description: 1 Switch, main power (110 V) Switch, main power (220V) 1 2 4 8 3 7 6 5 8 MAIN FRU LIST

File name fru740-5.pdf

Item: 1 Part Number: 118-9978-00 Serial number: Quantity: Description: 1 Laser motor driver board 1 1 2 2 12 12 17 17 11 11 10 10 16 16 14 14 13 13 15 15 3 3 8 8 4 4 1 9 9 7 7 6 6 5 5 3102-38 3102-38 MAIN FRU LIST Item: 2 Part Number: 118-9898-00 Serial number: Quantity: Description: 1 High-voltage board 1 1 2 2 12 12 17 17 11 11 10 10 16 16 14 14 13 13 15 15 3 3 8 8 4 4 2 9 9 7 7 6 6 5 5 3102-38 3102-38 MAIN FRU LIST Item: 3 Part Number: 671-4380-80 Serial number: Quantity: Description: 1 Image processing board 1 1 2 2 12 12 17 17 11 11 10 10 16 16 14 14 13 13 15 15 3 3 8 8 4 4 3 9 9 7 7 6 6 5 5 3102-38 3102-38 MAIN FRU LIST Item: 4 Part Number: 156-4758-10 156-4800-10 156-4811-10 156-4780-10 1 1 Serial number: Quantity: Description: 1 16-Mbyte RAM DIMM 1 32-Mbyte RAM DIMM 1 64-Mbyte RAM DIMM 1 128-Mbyte RAM DIMM 2 2 12 12 17 17 11 11 10 10 16 16 14 14 13 13 15 15 3 3 8 8 4 4 4 9 9 7 7 6 6 5 5 3102-38 3102-38 MAIN FRU LIST Item: 5a 5b 5c 5d Part Number: 671-4519-00 671-4527-00 671-4230-00 671-4231-00 1 1 Serial number: Quantity: Description: 1 Kanji Font DIMM 1 Korean Font DIMM 1 Simplified Chinese Font DIMM 1 Traditional Chinese Font DIMM 2 2 12 12 17 17 11 11 10 10 16 16 14 14 13 13 15 15 3 3 8 8 4 4 5 9 9 7 7 6 6 5 5 3102-38 3102-38 MAIN FRU LIST Item: 6a 6b 6c Part Number: 671-4669-52 671-4671-52 671-4670-52 Serial number: Quantity: Description: 1 Code ROM DIMM, Z740L, 1 Code ROM DIMM, Base, Plus 1 Code ROM DIMM, Extended, 1 1 2 2 12 12 17 17 11 11 10 10 16 16 14 14 13 13 15 15 3 3 8 8 4 4 6 9 9 7 7 6 6 5 5 3102-38 3102-38 MAIN FRU LIST Item: 7 Part Number: 671-4306-50 Serial number: Quantity: Description: SCSI riser board 1 1 2 2 12 12 17 17 11 11 10 10 16 16 14 14 13 13 15 15 3 3 8 8 4 4 7 9 9 7 7 6 6 5 5 3102-38 3102-38 MAIN FRU LIST Item: 8a 8b 8c 8d 8e Part Number: 671-3994-00 671-4034-00 671-3932-00 386-7104-00 213-1090-00 650-3887-00 1 1 Serial number: Quantity: Description: 1 100Base T Ethernet network card 1 LocalTalk network card 1 Token Ring network card 1 Blank cover plate (no card installed) 2 Blank cover plate thumbscrews 1 Internal IDEhard drive 2 2 12 12 17 17 11 11 10 10 16 16 14 14 13 13 15 15 3 3 8 8 4 4 8 9 9 7 7 6 6 5 5 3102-38 3102-38 MAIN FRU LIST Item: 9 Part Number: 118-9559-00 Serial number: Quantity: Description: 1 Interconnect cable, IP to engine board 1 1 2 2 12 12 17 17 11 11 10 10 16 16 14 14 13 13 15 15 3 3 8 8 4 4 9 9 9 7 7 6 6 5 5 3102-38 3102-38 MAIN FRU LIST Item: 10 Part Number: 118-9527-00 Serial number: Quantity: Description: 1 Cleaning board 1 1 2 2 12 12 17 17 11 11 10 10 16 16 14 14 13 13 15 15 3 3 8 8 4 4 10 9 9 7 7 6 6 5 5 3102-38 3102-38 MAIN FRU LIST Item: 11 Part Number: 118-9903-00 Serial number: Quantity: Description: 1 Engine control board (without NVRAM chip) 1 1 2 2 12 12 17 17 11 11 10 10 16 16 14 14 13 13 1

File name fru740-6.pdf

Item: 1 Part Number: 118-9901-00 Serial number: Quantity: Description: 1 Laser scanner unit 1 2 3 9 5 4 7 6 8 1 3102-39 MAIN FRU LIST Item: 2 Part Number: 118-9546-00 Serial number: Quantity: Description: 1 Pre-transfer lamp 1 2 3 9 5 4 7 6 8 2 3102-39 MAIN FRU LIST Item: 3 Part Number: 118-9549-00 Serial number: Quantity: Description: 1 Pre-exposure erase lamp 1 2 3 9 5 4 7 6 8 3 3102-39 MAIN FRU LIST Item: 4 Part Number: 118-9895-00 Serial number: Quantity: Description: 1 Paper feeder 1 2 3 9 5 4 7 6 8 4 3102-39 MAIN FRU LIST Item: 5 Part Number: 118-9896-00 Serial number: Quantity: Description: 1 Multi-purpose tray kit pick roller pad spring pick pad 1 2 3 9 5 4 7 6 8 5 3102-39 MAIN FRU LIST Item: 6 Part Number: 118-9563-00 Serial number: Quantity: Description: 2 D-roller, paper feed 1 2 3 9 5 4 7 6 8 6 3102-39 MAIN FRU LIST Item: 7 Part Number: 118-9912-00 Serial number: Quantity: Description: 1 Guide, paper tray, front 1 2 3 9 5 4 7 6 8 7 3102-39 MAIN FRU LIST Item: 8 Part Number: 118-9911-00 Serial number: Quantity: Description: 1 Guide, paper tray, rear 1 2 3 9 5 4 7 6 8 8 3102-39 MAIN FRU LIST Item: 9 Part Number: 118-9600-00 Serial number: Quantity: Description: 1 Accumulator cleaning blade clutch assy 1 2 3 9 5 4 7 6 8 9 3102-39 MAIN FRU LIST Item: Part Number: 118-9916-00 Serial number: Quantity: Description: 1 Auto-duplex tray connector 1 2 3 9 5 4 7 6 8 10 3102-39 MAIN FRU LIST Item: Part Number: 119-5890-00 Serial number: Quantity: Description: 1 Auto-duplex unit (service only) 1 2 3 9 5 4 7 6 8 11 3102-39 MAIN FRU LIST Item: Part Number: 119-5889-00 Serial number: Quantity: Description: 1 Lower Tray Assembly (no trays supplied) 1 2 3 9 5 4 7 6 8 12 3102-39 MAIN FRU LIST Item: Part Number: 119-6003-01 Serial number: Quantity: Description: ZDISK External hard drive 1 1 2 3 9 5 4 7 6 8 13 3102-39 MAIN FRU LIST

File name fru740.pdf

Field Replaceable Parts MAIN FRU LIST It is important when ordering parts to include the following information: s s s Component's part number Product type or model number Serial number of the printer Serial numbering. Particular fields in the serial number indicate the modification level of the printer, the date of its manufacture and the sequence number of the printer produced on that day. The serial number is coded as follows: JLxxDMY J indicates the headquarter country of the manufacturing company, Japan. L indicates the modification level of the printer, ranging alpha-numerically from 0 to Z. xx alpha-numerically indicates the sequence of the printer among the printers produce on that day of manufacture, ranging from 01 to ZZ representing 1 to 1296 (the letters I and O are not used). D alpha-numerically indicates the day of manufacture, ranging from 1 to X representing 1 to 31 (the letters I and O are not used). M alpha-numerically indicates the month of manufacture, ranging from 1 to C representing 1 to 12. Y numerically indicates the last digit of the year of manufacture, ranging from 0 to 9. Phaser 740 Online Service Information BACK TO MAIN 1 7 3 2 4 4 6 5 1 3102-26 Figure 1 Front Cabinet FRUs Phaser 740 Online Service Information BACK TO MAIN 2 3 2 4 5 1 6 3102-27 Figure 2 Rear Cabinet FRUs Phaser 740 Online Service Information BACK TO MAIN 3 1 3 5 2 6 4 9 8 7 10 3102-37 Figure 3 Motor and fan FRUs Phaser 740 Online Service Information BACK TO MAIN 4 1 2 4 8 3 7 6 5 3102 40 Figure 4 Sensor, switch and flag FRUs Phaser 740 Online Service Information BACK TO MAIN 5 1 2 12 17 11 10 16 15 14 13 3 8 4 9 7 6 5 3102-38 Figure 5 Circuit board and electronic FRUs Phaser 740 Online Service Information BACK TO MAIN 6 1 2 3 9 5 4 7 6 8 3102-39 Figure 6 Imaging and paper feed component FRUs Phaser 740 Online Service Information BACK TO MAIN 7 Kits and other hardware Fig 1 parts Part number 118-9560-00 Serial number Effective Discont'd Qty 1 Name and description Spring, toner cartridge, front and rear 2 rear springs (thick-CMYK) 1 front spring (thin-black only) 2 front springs (thin-CMY Hardware kit Screws E-rings C-rings Front and rear guide springs Laser Scanner shaft and spring (under laser scanner) 118-9520-00 1 Supplies and accessories Part number Supply Supply Supply Supply Supply Supply Supply Supply Supply 016-1684-00 016-1685-00 016-1686-00 016-1687-00 016-1656-00 016-1657-00 016-1658-00 016-1659-00 016-1663-00 Serial number Effective Discont'd Qty 1 1 1 1 1 1 1 1 1 Name and description Black toner standard cartridge Cyan toner standard cartridge Magenta tonerstandard cartridge Yellow toner standard cartridge Black toner extended cartridge Cyan toner extended cartridge Magenta toner extended cartridge Yellow toner extended cartridge Fuser Roll Phaser 740 Online Service Information BACK TO MAIN 8 Supplies and accessories Part number Supply Supply Supply Supply

File name Link740.pdf

Phaser 740 Color Printer Online Service Files About the Configuration Page Theory of Operation Verifying Printer Operation Disasembly/Assembly of the Printer Field Replaceable Units Tools List BACK TO MAIN Phaser 740 Online Service Information 1

File name theo740.pdf

Theory of Operation Overview This topic covers the theory of operation of each subsystem within the printer: s s s s s s Functional block diagram Imaging Fusing Paper path Power supply Image processor Phaser 740 Online Service Information BACK TO MAIN 1 Functional block diagram The printer is made of eight major blocks: s s s s s s s s Imaging unit Laser scanner Toner cartridges Fuser Engine control board Power supplies Mechanicals Image processor board Phaser 740 Online Service Information BACK TO MAIN 2 Imaging unit The imaging unit forms the heart of the printer. This customer-replaceable unit contains the photoconductive belt and accumulator belt on which imaging takes place. Laser scanner The laser scanner is the device that "writes" the image onto the imaging unit's photoconductive belt. Toner cartridges Four toner cartridges, black, yellow, cyan and magenta, contain the primary color toners. Each toner cartridge feature a voltage-biased developer that sequentially transfers that cartridge's toner onto the imaging unit's photoconductive belt, depending on where the laser exposed the belt. Subsequently, the toner is transferred to the imaging unit's accumulator belt from which it is transferred to a sheet of media. 740-7-24 Toner cartridges Image processor board Laser scanner Engine control boards Low V Power supply Imaging unit Mechanicals Hi V Power supply Fuser Figure 5 Block diagram of the printer Phaser 740 Online Service Information BACK TO MAIN 3 Fuser The fuser permanently bonds the toners to the media through a combination of heat and pressure. Engine control board Working as the "brains" of the print engine, the engine control board coordinates all printer functions. The engine control contains the microprocessor and ROM that control printer operations. Power supplies The low-voltage power supply provides regulated DC power source for the printer's electronics and motors. The high-voltage power supply provides high-voltage for the chargers and bias rollers. Mechanicals Mechanicals include the motors, gear trains and solenoids that drive the belts and rollers of the printer. Image processor board The image processor board converts the image data from the host computer into a raster format for the print engine. The image processor board also controls all messages displayed on the front panel. Phaser 740 Online Service Information BACK TO MAIN 4 Laser imaging Overview The laser printer prints an image on paper Scorotron Erase using a technique called laser charger lamp electrophotography. The printer uses the electrographic process known as Discharged Photo conductive Area Development or "write black." In this belt cleaner process, a digitally modulated laser scans First bias transfer roller laterally across a negatively charged, rotating photoconductive belt. Where the Accumulator belt belt is exposed by the laser beam is where the image is written and toner is transferred. Multipurpose tray pick roller Alig

File name tool740.pdf

Required tools s s s s s Needle-nose pliers Diagonal cutters Flat-blade screwdriver 90% isopropyl alcohol Magnetic-tip screwdrivers; 3-inch shaft and 6-inch shaft: s s s s Spring removal tool Conductive grease Gear grease 003-1623-00 006-7998-00 006-7436-00 #2 Phillips tip -- extended shank 343-0549-00 006-7056-00 067-1433-00 003-0236-00 003-1496-00 003-1497-00 003-1498-00 006-7971-00 ® s s s s s s s s Replacement cable ties Antistatic mat Test pattern generator Tweezers 115 VAC toner vacuum 220 VAC toner vacuum Toner filters for vacuum Light shield/drape Phaser 740 Online Service Information BACK TO MAIN 1

File name veri740.pdf

Verifying the Printer and Host Connections In this chapter, you verify that the host computer can send files to the printer. This chapter assumes that the printer and the printer drivers have been properly installed. Verifying printing from a PC Direct DOS connection verification Verify that the PC can communicate with the printer. 1. Power up the printer and the PC. If the PC is running under Windows, exit Windows so that the PC is operating under DOS alone. 2. At the DOS prompt, type (in lowercase) the following: echo showpage > port: Substitute port: with LPT1:, LPT2: etc. or whichever corresponds to the port the printer is attached to. The printer should respond by picking, processing, and ejecting a blank sheet of paper; if this does not happen, check your cabling. Phaser 740 Online Service Information BACK TO MAIN 1 Windows 95 driver verification Using the Windows Write application, verify that the PC, running under Windows 95, can print to the printer. 1. If it is not already running, start Windows 95. 2. Launch a simple text program such as one of the Windows 95 programs: Notepad or WordPad. (If Notepad or WordPad are not available, you can use any other text editor-type program.) 3. Type in a line of text such as THIS IS A TEST. 4. Click the File menu item and select Printer Setup... from the menu list. Select Phaser 740 from the displayed list of available printer drivers. Click OK. 5. Click File and select Print. A print file will be transmitted to the printer. Phaser 740 Online Service Information BACK TO MAIN 2 Windows 3.1 driver verification Using the Windows Write application, verify that the PC, running under Windows 3.1, can print to the printer. 1. If it is not already running, launch Windows by typing this command: WIN 2. Launch the program manager by double-clicking the Program Manager icon. 3. Open the Accessories window by double-clicking the Accessories icon. 4. Double-click on the Write icon. (If Write is not available, you can use any other text editortype program.) 5. Type in a line of text such as THIS IS A TEST. 6. Click the File menu item and select Printer Setup... from the menu list. Select Phaser 740 from the displayed list of available printer drivers. Click OK. 7. Click File and select Print. A print file will be transmitted to the printer. Phaser 740 Online Service Information BACK TO MAIN 3 OS/2 connection verification Note The Print Screen function is controlled from within the OS/2 System folder. 1. Open the System folder, then open the System object. 2. Click on the Print Screen Tab to view the Print Screen settings. Be sure that Enable has been selected. With Enable Print Screen selected, the following options are available: a. You may print the contents of a window by pointing to that window and pressing Print Screen. b. You may print the full screen by first opening any window, placing the cursor on the desktop away from any open windows, and then pressing Print Screen. Be sure that at lea

File name _Contents740.pdf

Contents General Information 1 The Phaser 740 Color Printer 2 RAM and printer capabilities 4 Print engine assemblies 6 The image processor board 9 Front panel 10 Rear panel 12 Network card LEDs 12 Test print button 13 Health LED 14 Media tray type sensing 14 Specifications 16 Regulatory specifications 19 Error Codes and Messages 21 Error messages 21 Print engine error codes 21 Normal power-up self-tests 29 Troubleshooting 31 System power-up sequence 31 Print engine troubleshooting 32 Testing the print engine 32 Verifying printer operation by using its self-test print 33 Verifying power supply operation 33 Measuring power supply voltages 33 Inspecting the power supply fuses 35 Safety interlocks 35 Testing for a shorted motor 37 Media jams and the paper path 37 Media-based problems 37 Media problems 37 Multiple-sheet pick 38 The media skews passing through the paper path 38 Paper tray indicates empty when it is not 38 No paper feeder installed 39 No imaging unit installed 39 Service Guide 1 Jams 39 Paper mis-picks at the paper tray 39 Paper jams midway in the paper feeder 40 Paper jams at the second bias transfer roller 40 Fuser jams 41 Eject jams 42 Multi-purpose tray feed jams 42 Jams in the auto-duplex unit 43 Other problems 43 The printer continuously displays "Initializing" 43 No toner cartridge installed message when it is 43 No fuser installed message when it is 44 No fuser roll installed message when it is 44 Front door open when it is closed 44 Left-side door open message when it is not 45 High temperature error 45 Low temperature error 45 High voltage error 46 Thermistor open error 46 Front panel cycling between READY and WARMING UP 46 Erratic printer behavior 46 Installed RAM not recognized 46 Printing and print quality problems 47 Blank print 47 All-black print 47 Missing primary color 48 Light print 48 Repeated spots or lines on print in-line with each other 49 Dark vertical line in print 49 White horizontal line or band in all the colors of a print 49 Vertical lines in the print 50 Dirty background 50 Mis-transfer, missing portions of toner 50 Dark, irregular steaks in all colors 50 Ghosting 51 Unfused or partially fused printing 51 Image is skewed on the paper 51 Stains on the back of the print 51 No printing on edge of print 52 Image is not centered on the print when it should be 52 The print is wrinkled 52 Macintosh printing problems 53 Image never prints 53 Image prints in black-and-white 53 Image is rotated 90 degrees 54 Printer isn't in the Chooser 54 Windows printing problems 54 Image never prints 54 Service Tests and Adjustments 2 55 Phaser 740 Color Printer Required tools 55 Printing test prints 56 Print service test prints 56 Printing the Configuration Page 56 Printing the demonstration pages 56 Printing the print engine's test print 56 Printer self-diagnostics 57 Service tests 57 Print engine calibration 60 Printer color correction 60 Manually setting color corrections 60 Cleaning and Maintenance 63 63 Serv