User's Guide
Page 107
...power cord, connecting 12 PPDS Activated 65 PPDS font error 50 print cartridge installing 2 maintaining 57 problems 4, 59 print quality 1200 Image Quality vi toner saver vi printer attendance information 43 features ix service information 52 status information 38 unpacking 1, 23 printer drivers, installing 19 printer features 59 printer... setting 65 print quality test pages setting 57 restore factory defaults 59 USB NPA Mode setting 71 USB Port Enabled setting 70 supplies, ordering 57 system board shield, removing 13 T test page, printing 11 toner saver vi Top Cover Open light 45 transparency...
...power cord, connecting 12 PPDS Activated 65 PPDS font error 50 print cartridge installing 2 maintaining 57 problems 4, 59 print quality 1200 Image Quality vi toner saver vi printer attendance information 43 features ix service information 52 status information 38 unpacking 1, 23 printer drivers, installing 19 printer features 59 printer... setting 65 print quality test pages setting 57 restore factory defaults 59 USB NPA Mode setting 71 USB Port Enabled setting 70 supplies, ordering 57 system board shield, removing 13 T test page, printing 11 toner saver vi Top Cover Open light 45 transparency...
Service Manual
Page 4
... Assembly 4-18 Printhead Assembly 4-20 Transfer Roll 4-21 Connector Locations 5-1 Controller Board (model E310/E312 5-1 Engine/LVPS Board (model E310 5-4 Engine Board (model E312 5-9 LVPS (model E312 5-14 High Voltage Power Supply (model E310 5-16 High Voltage Power Supply (model E312 5-18 Interconnect Board (model E310 5-21 Parts Catalog 6-1 Assembly 1: Covers 6-2 Assembly 2: Frame 6-6 Assembly 3: Fuser 6-10 Assembly 4: Main...
... Assembly 4-18 Printhead Assembly 4-20 Transfer Roll 4-21 Connector Locations 5-1 Controller Board (model E310/E312 5-1 Engine/LVPS Board (model E310 5-4 Engine Board (model E312 5-9 LVPS (model E312 5-14 High Voltage Power Supply (model E310 5-16 High Voltage Power Supply (model E312 5-18 Interconnect Board (model E310 5-21 Parts Catalog 6-1 Assembly 1: Covers 6-2 Assembly 2: Frame 6-6 Assembly 3: Fuser 6-10 Assembly 4: Main...
Service Manual
Page 22
... Acronyms CSU DRAM EP EPROM ESD FRU HVPS LASER LCD LED LVPS MROM NVRAM OEM PC POST ROM SIMM SRAM UPR USB V ac V dc Customer Setup Dynamic Random Access Memory Electrophotographic Process Erasable, Programmable Read-Only Memory Electrostatic Discharge Field Replaceable Unit High Voltage Power Supply Light Amplification by Stimulated Emission of Radiation...
... Acronyms CSU DRAM EP EPROM ESD FRU HVPS LASER LCD LED LVPS MROM NVRAM OEM PC POST ROM SIMM SRAM UPR USB V ac V dc Customer Setup Dynamic Random Access Memory Electrophotographic Process Erasable, Programmable Read-Only Memory Electrostatic Discharge Field Replaceable Unit High Voltage Power Supply Light Amplification by Stimulated Emission of Radiation...
Service Manual
Page 34
Cooling Fan Service Check FRU Model E310 Interconnect Board Cooling Fan Action Make sure motor cable is properly seated in location CN408 on the engine board. FRU Model E312 Engine Board Cooling ...-XXX Service Checks Note: All service checks which involve measuring voltages of the printer. Disconnect the cable and check connector-pin CN408-3 for +24 V dc. This provides the servicer access to the various circuit boards underneath the printer while supplying necessary power to the rest of the circuit boards (except the controller board) must...
Cooling Fan Service Check FRU Model E310 Interconnect Board Cooling Fan Action Make sure motor cable is properly seated in location CN408 on the engine board. FRU Model E312 Engine Board Cooling ...-XXX Service Checks Note: All service checks which involve measuring voltages of the printer. Disconnect the cable and check connector-pin CN408-3 for +24 V dc. This provides the servicer access to the various circuit boards underneath the printer while supplying necessary power to the rest of the circuit boards (except the controller board) must...
Service Manual
Page 50
Excessive heat can be caused by a defective printhead assembly, high voltage power supply or engine/ LVPS board. A worn transfer roller causes the printer to the "High Voltage Power Supply (model E310)" on connectors CN3 and CN4. Blank pages can cause paper treeing problems, poor stacking or curl. Disconnect the printhead cable ...the printhead cable for the media being printed. If the problem still exists, replace the engine/LVPS board on the model E310 or the engine board on the model E312. 2-28 Service Manual 4044-XXX Paper "trees", wrinkles, stacks poorly or curls FRU Models...
Excessive heat can be caused by a defective printhead assembly, high voltage power supply or engine/ LVPS board. A worn transfer roller causes the printer to the "High Voltage Power Supply (model E310)" on connectors CN3 and CN4. Blank pages can cause paper treeing problems, poor stacking or curl. Disconnect the printhead cable ...the printhead cable for the media being printed. If the problem still exists, replace the engine/LVPS board on the model E310 or the engine board on the model E312. 2-28 Service Manual 4044-XXX Paper "trees", wrinkles, stacks poorly or curls FRU Models...
Service Manual
Page 92
Remove all the covers. 2. Remove the roller bearing. 4-18 Service Manual Remove the high voltage power supply. 3. 4044-XXX Pick Roll Assembly 1.
Remove all the covers. 2. Remove the roller bearing. 4-18 Service Manual Remove the high voltage power supply. 3. 4044-XXX Pick Roll Assembly 1.
Service Manual
Page 100
4044-XXX Engine/LVPS Board (model E310) Connector CN201 Power Switch CN202 Fuser Lamp CN1 Thermistor CN2 HVPS/Printhead Pin No. Signal 1 AC In 2 AC In 1 AC In 2 AC In 1 THERM 2 +3.9 V dc 1 +24 V dc SWITCH 2 +24 V dc 3 Ground 4 +24 V dc 5 VDO 6 MHV 7 LDON 8 SUPPLY 9 Ground 10 DEV350 5-4 Service Manual
4044-XXX Engine/LVPS Board (model E310) Connector CN201 Power Switch CN202 Fuser Lamp CN1 Thermistor CN2 HVPS/Printhead Pin No. Signal 1 AC In 2 AC In 1 AC In 2 AC In 1 THERM 2 +3.9 V dc 1 +24 V dc SWITCH 2 +24 V dc 3 Ground 4 +24 V dc 5 VDO 6 MHV 7 LDON 8 SUPPLY 9 Ground 10 DEV350 5-4 Service Manual
Service Manual
Page 112
4044-XXX High Voltage Power Supply (model E310) Connector CN1 Engine/LVPS Board Pin No. Signal 1 +24 V dc 2 +24 V dc SWITCH 3 +24 V dc 4 Ground 5 MHV 6 VDO 7 SUPPLY 8 LDON 9 DEV350 10 Ground 11 THVPWM 12 HSYNC 13 Ground 14 EXT CLK 15 THVEA 16 Ground 17 DEV300 18 LREADY 19 +5 V dc 20 P MOTOR 21 AGND 22 AGND 23 AGND 24 THVREAD 5-16 Service Manual
4044-XXX High Voltage Power Supply (model E310) Connector CN1 Engine/LVPS Board Pin No. Signal 1 +24 V dc 2 +24 V dc SWITCH 3 +24 V dc 4 Ground 5 MHV 6 VDO 7 SUPPLY 8 LDON 9 DEV350 10 Ground 11 THVPWM 12 HSYNC 13 Ground 14 EXT CLK 15 THVEA 16 Ground 17 DEV300 18 LREADY 19 +5 V dc 20 P MOTOR 21 AGND 22 AGND 23 AGND 24 THVREAD 5-16 Service Manual
Service Manual
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4044-XXX High Voltage Power Supply (model E312) Connector CN1 Engine Board Pin No. Signal 1 +24 V dc SWITCH 2 +24 V dc 3 +24 V dc SWITCH 4 + 24 V dc 5 THVEA 6 LREADY 7 THV PWM 8 VDO 9 MHV PWM 10 HSYNC 11 SUPPLYEA 12 DEVEA-A 13 DEVEA-B 14 LDON 15 Ground, Floating 16 Ground, Floating 17 +5 Vdc 18 Ground, Floating 19 +5 V dc 20 Ground 21 Ground 22 Ground 23 PMOTOR 24 THVREAD 5-18 Service Manual
4044-XXX High Voltage Power Supply (model E312) Connector CN1 Engine Board Pin No. Signal 1 +24 V dc SWITCH 2 +24 V dc 3 +24 V dc SWITCH 4 + 24 V dc 5 THVEA 6 LREADY 7 THV PWM 8 VDO 9 MHV PWM 10 HSYNC 11 SUPPLYEA 12 DEVEA-A 13 DEVEA-B 14 LDON 15 Ground, Floating 16 Ground, Floating 17 +5 Vdc 18 Ground, Floating 19 +5 V dc 20 Ground 21 Ground 22 Ground 23 PMOTOR 24 THVREAD 5-18 Service Manual
Service Manual
Page 145
... Number 12G1896 Units 1 12G1940 1 12G0108 1 14 12G1872 1 12G0114 1 12G1926 1 12G1941 1 12G1898 1 12G1899 1 12G0090 1 12G0092 1 12G1937 1 12G1927 1 Description Board Asm, HVPS E312 Power Cord Reference Assembly 6: Electronics (model 310) Asm/Index 6-2. Cable Asm, Motor to Engine Board E312 Bracket, Controller Board Mounting Screw, Type 3 PP 12G0101 Board Asm... Controller Board E312 Shield Asm, LVPS E312 Board Asm, LVPS-110 V ac E312 Board Asm, LVPS-220 V ac E312 Fuse, Power Supply-110 V ac Fuse, Power Supply-220 V ac Board Asm, Engine E312 Cable Asm, Engine to HVPS E312 Parts Catalog 6-25
... Number 12G1896 Units 1 12G1940 1 12G0108 1 14 12G1872 1 12G0114 1 12G1926 1 12G1941 1 12G1898 1 12G1899 1 12G0090 1 12G0092 1 12G1937 1 12G1927 1 Description Board Asm, HVPS E312 Power Cord Reference Assembly 6: Electronics (model 310) Asm/Index 6-2. Cable Asm, Motor to Engine Board E312 Bracket, Controller Board Mounting Screw, Type 3 PP 12G0101 Board Asm... Controller Board E312 Shield Asm, LVPS E312 Board Asm, LVPS-110 V ac E312 Board Asm, LVPS-220 V ac E312 Fuse, Power Supply-110 V ac Fuse, Power Supply-220 V ac Board Asm, Engine E312 Cable Asm, Engine to HVPS E312 Parts Catalog 6-25