Service Manual
Page 11
...After completing service 222 Screws that are used in the MFP 222 User-replaceable parts ...224 Print cartridge ...224 Control-panel overlays ...224 Control panel ...225 Transfer roller ...226 ADF input tray ...227 ADF pickup and feed rollers 228 ADF separation pad ...229 ADF delivery guide (clear...-bin assembly ...233 Duplex-printing unit ...234 Fuser-entrance guide ...235 Fuser ...235 Tray 2, 3, 4, or 5 pickup and feed rollers 236 Tray 1 pickup roller ...237 Scanner filter cover and scanner filter 238 ADF-hinge flap ...239 Formatter cover and formatter 240 Hard drive ...242 DIMM ...243 ...
...After completing service 222 Screws that are used in the MFP 222 User-replaceable parts ...224 Print cartridge ...224 Control-panel overlays ...224 Control panel ...225 Transfer roller ...226 ADF input tray ...227 ADF pickup and feed rollers 228 ADF separation pad ...229 ADF delivery guide (clear...-bin assembly ...233 Duplex-printing unit ...234 Fuser-entrance guide ...235 Fuser ...235 Tray 2, 3, 4, or 5 pickup and feed rollers 236 Tray 1 pickup roller ...237 Scanner filter cover and scanner filter 238 ADF-hinge flap ...239 Formatter cover and formatter 240 Hard drive ...242 DIMM ...243 ...
Service Manual
Page 15
... the Service ID 462 Converting the service ID to an actual date 462 Troubleshooting the embedded HP Jetdirect print server 463 Firmware-stack trace ...464 Solve common Windows problems 465 Solve common Macintosh... 472 How to use the parts lists and diagrams 472 Screws that are used in the MFP ...473 Customer-replaceable parts and accessories 474 Accessories ...474 Customer-replaceable components (print engine 476...Lifter-drive assembly ...516 Cassette ...518 Paper-feed roller assembly 520 Registration assembly ...522 Multipurpose assembly ...524 Reverse assembly ...526 ENWW xiii
... the Service ID 462 Converting the service ID to an actual date 462 Troubleshooting the embedded HP Jetdirect print server 463 Firmware-stack trace ...464 Solve common Windows problems 465 Solve common Macintosh... 472 How to use the parts lists and diagrams 472 Screws that are used in the MFP ...473 Customer-replaceable parts and accessories 474 Accessories ...474 Customer-replaceable components (print engine 476...Lifter-drive assembly ...516 Cassette ...518 Paper-feed roller assembly 520 Registration assembly ...522 Multipurpose assembly ...524 Reverse assembly ...526 ENWW xiii
Service Manual
Page 130
...for sending to e-mail Sequence of the last rotation until a print command is received from the end of operation (printer) A microprocessor on until the final printed page is installed in this time the transfer roller is cleaned and the microprocessor on until the positive bias on the transfer-charging... from the end of the waiting sequence or from the host computer or until the main motor or drum motor stops. The tables in the MFP. The message Ready appears on a photosensitive drum ● The image formation system, which transfers a toner image onto the print media ●...
...for sending to e-mail Sequence of the last rotation until a print command is received from the end of operation (printer) A microprocessor on until the final printed page is installed in this time the transfer roller is cleaned and the microprocessor on until the positive bias on the transfer-charging... from the end of the waiting sequence or from the host computer or until the main motor or drum motor stops. The tables in the MFP. The message Ready appears on a photosensitive drum ● The image formation system, which transfers a toner image onto the print media ●...
Service Manual
Page 137
...brushes, four fan motors, and three stepping motors. The MFP print engine also has four cooling fans. Motor and fan functions Table 4-1 Print-engine motors Name Purpose Type Main motor (M101) Drives the following rollers: tray 2 pickup, feed, separation, tray 1 pickup,... plate Crossing motor (M104) Drives the crossing roller DC motor (with brushes) Stepping motor Reversing motor (M105) Drives the reversing roller Stepping motor Delivery motor (M106) Drives the intermediate delivery roller and the delivery roller Stepping motor Rotation Clockwise Speed 2-speed Clockwise 2-speed...
...brushes, four fan motors, and three stepping motors. The MFP print engine also has four cooling fans. Motor and fan functions Table 4-1 Print-engine motors Name Purpose Type Main motor (M101) Drives the following rollers: tray 2 pickup, feed, separation, tray 1 pickup,... plate Crossing motor (M104) Drives the crossing roller DC motor (with brushes) Stepping motor Reversing motor (M105) Drives the reversing roller Stepping motor Delivery motor (M106) Drives the intermediate delivery roller and the delivery roller Stepping motor Rotation Clockwise Speed 2-speed Clockwise 2-speed...
Service Manual
Page 143
...Low-voltage power supply The low-voltage circuit converts the AC power from adhering to the transfer-charging roller when media is applied to the electrostatic image that the MFP components use. electrostatic image on the power supply generates both biases. The developing voltage (bias) causes ...the toner to adhere to the transfer roller during the toner-transfer process. The high-voltage circuit on the ...
...Low-voltage power supply The low-voltage circuit converts the AC power from adhering to the transfer-charging roller when media is applied to the electrostatic image that the MFP components use. electrostatic image on the power supply generates both biases. The developing voltage (bias) causes ...the toner to adhere to the transfer roller during the toner-transfer process. The high-voltage circuit on the ...
Service Manual
Page 150
This information is EEPROM built into the cartridge, so that the MFP can detect the cartridge conditions. The cartridge memory read /write process is implemented when the memory controller board receives a command from the formatter 132 Chapter... Writing timing ● When printing is performed by the memory controller board through the antenna unit. Print cartridge The print cartridge contains the primary-charging roller, photosensitive drum, and developing cylinder. The memory read /write is completed ● When the DC controller PCA receives a command from the DC controller ...
This information is EEPROM built into the cartridge, so that the MFP can detect the cartridge conditions. The cartridge memory read /write process is implemented when the memory controller board receives a command from the formatter 132 Chapter... Writing timing ● When printing is performed by the memory controller board through the antenna unit. Print cartridge The print cartridge contains the primary-charging roller, photosensitive drum, and developing cylinder. The memory read /write is completed ● When the DC controller PCA receives a command from the DC controller ...
Service Manual
Page 153
... within a specific amount of time, the microprocessor on the DC controller PCA halts the MFP functions and a jam error message appears on page 137. The printed media is delivered to the MFP. The output device can be installed. ENWW Pickup, feed, and delivery system 135 Face...be added to the output device that the printer motors drive. These input and output accessories are stacked in tray 2. The MFP has a built-in this chapter. Pickup, feed, and delivery system The pickup-and-feed system consists of various rollers that is installed. Three additional 500sheet feeders...
... within a specific amount of time, the microprocessor on the DC controller PCA halts the MFP functions and a jam error message appears on page 137. The printed media is delivered to the MFP. The output device can be installed. ENWW Pickup, feed, and delivery system 135 Face...be added to the output device that the printer motors drive. These input and output accessories are stacked in tray 2. The MFP has a built-in this chapter. Pickup, feed, and delivery system The pickup-and-feed system consists of various rollers that is installed. Three additional 500sheet feeders...
Service Manual
Page 159
...the user selected, the formatter masks part of the image to prevent extra toner from transferring from the photosensitive drum to the transfercharging roller. Media-size detection The MFP has three media-size detection systems: ● Cassette (trays 2, 3, 4, and 5) media-size detection ● Media-length detection... pickup operation The DC controller turns on the cassette pickup solenoid (SL101) and the main motor (M101) drives the cassette pickup roller and the cassette pickup cam. PS112 detects media that the formatter specifies, the DC controller sends a signal to detect the cassette ...
...the user selected, the formatter masks part of the image to prevent extra toner from transferring from the photosensitive drum to the transfercharging roller. Media-size detection The MFP has three media-size detection systems: ● Cassette (trays 2, 3, 4, and 5) media-size detection ● Media-length detection... pickup operation The DC controller turns on the cassette pickup solenoid (SL101) and the main motor (M101) drives the cassette pickup roller and the cassette pickup cam. PS112 detects media that the formatter specifies, the DC controller sends a signal to detect the cassette ...
Service Manual
Page 161
.... The DC controller PCA operates the lifter-driver motor (M103) for 30 milliseconds. Multifeed prevention The MFP uses the separation roller in tray 2 to the separation roller. If multiple sheets of the feed roller exceeds that a lifterdriver motor failure has occurred, and a message appears on the control-panel display.... prevent multiple-feeding. The motor stops when the paper-stack-position sensor (PS107) detects the media. The separation roller rotates in the reverse direction, which removes the extra sheets. Figure 4-19 Multifeed prevention ENWW Pickup, feed, and delivery ...
.... The DC controller PCA operates the lifter-driver motor (M103) for 30 milliseconds. Multifeed prevention The MFP uses the separation roller in tray 2 to the separation roller. If multiple sheets of the feed roller exceeds that a lifterdriver motor failure has occurred, and a message appears on the control-panel display.... prevent multiple-feeding. The motor stops when the paper-stack-position sensor (PS107) detects the media. The separation roller rotates in the reverse direction, which removes the extra sheets. Figure 4-19 Multifeed prevention ENWW Pickup, feed, and delivery ...
Service Manual
Page 163
... can continue into the printer paper path. Figure 4-21 Corner of the skewed media contacts the registration shutter, the shutter does not open. When the leading edge of the media contacts the shutter ENWW Pickup, feed, and delivery system 145 The feed roller continues to rotate and ...the media begins to prevent skewed media from entering the MFP. The following three figures illustrate this process. The overall print speed is corrected and the ...
... can continue into the printer paper path. Figure 4-21 Corner of the skewed media contacts the registration shutter, the shutter does not open. When the leading edge of the media contacts the shutter ENWW Pickup, feed, and delivery system 145 The feed roller continues to rotate and ...the media begins to prevent skewed media from entering the MFP. The following three figures illustrate this process. The overall print speed is corrected and the ...
Service Manual
Page 169
...microprocessor on the DC controller PCA determines that a pickup stationary jam has occurred. The number of time after the media is the source). NOTE The MFP attempts to pick up the media several times before determining that a pickup jam exists. Pickup stationary jam If the top-of-page sensor (PS103)... detect the trailing edge of the media within a specific period of time after the media is stopped (the motors are turned off and the rollers no longer rotate) and a jam message appears on the control-panel display. The number of time after the media is the source). NOTE The...
...microprocessor on the DC controller PCA determines that a pickup stationary jam has occurred. The number of time after the media is the source). NOTE The MFP attempts to pick up the media several times before determining that a pickup jam exists. Pickup stationary jam If the top-of-page sensor (PS103)... detect the trailing edge of the media within a specific period of time after the media is stopped (the motors are turned off and the rollers no longer rotate) and a jam message appears on the control-panel display. The number of time after the media is the source). NOTE The...
Service Manual
Page 178
...position as required. 160 Chapter 4 Theory of operation ENWW The 3-bin mailbox has the following components: ● One feed motor that drives the rollers ● Two solenoids that operate the inlet deflector and the bin deflector ● Six sensors that cools components inside the 3-bin mailbox The 3-...bin mailbox has three operating modes: stacker mode, mailbox mode, and function-separator mode. To deliver media to the MFP correctly ● One fan that detect the presence of its three bins. The MBM-driver PCA controls all functions in the output bins ●...
...position as required. 160 Chapter 4 Theory of operation ENWW The 3-bin mailbox has the following components: ● One feed motor that drives the rollers ● Two solenoids that operate the inlet deflector and the bin deflector ● Six sensors that cools components inside the 3-bin mailbox The 3-...bin mailbox has three operating modes: stacker mode, mailbox mode, and function-separator mode. To deliver media to the MFP correctly ● One fan that detect the presence of its three bins. The MBM-driver PCA controls all functions in the output bins ●...
Service Manual
Page 242
...two control-panel overlays (callout 1). 224 Chapter 5 Removal and replacement ENWW Grasp the print cartridge, and remove it from the MFP. User-replaceable parts The procedures in this section describe the removal and replacement of the following userreplaceable parts: ● Print ...-bin assembly ● Duplex-printing unit ● Fuser-entrance guide ● Fuser ● Tray 2, 3, 4, or 5 pickup and feed rollers ● Tray 1 pickup roller ● Scanner filter cover and scanner filter ● ADF-hinge flap ● Formatter cover and formatter ● Hard drive ● DIMM ...
...two control-panel overlays (callout 1). 224 Chapter 5 Removal and replacement ENWW Grasp the print cartridge, and remove it from the MFP. User-replaceable parts The procedures in this section describe the removal and replacement of the following userreplaceable parts: ● Print ...-bin assembly ● Duplex-printing unit ● Fuser-entrance guide ● Fuser ● Tray 2, 3, 4, or 5 pickup and feed rollers ● Tray 1 pickup roller ● Scanner filter cover and scanner filter ● ADF-hinge flap ● Formatter cover and formatter ● Hard drive ● DIMM ...
Service Manual
Page 247
Figure 5-9 Remove the ADF pickup and feed rollers (2 of the MFP to remove it. Release the front (gear end) of the roller-assembly drive-shaft, and slide the assembly toward the front of 2) ADF separation pad 1. Figure 5-8 Remove the ADF pickup and feed rollers (1 of the assembly away from the ADF. Open the ADF top cover ENWW User-replaceable parts 229 Push down on the locking tab (callout 1), and rotate the top of 2) 3. 2.
Figure 5-9 Remove the ADF pickup and feed rollers (2 of the MFP to remove it. Release the front (gear end) of the roller-assembly drive-shaft, and slide the assembly toward the front of 2) ADF separation pad 1. Figure 5-8 Remove the ADF pickup and feed rollers (1 of the assembly away from the ADF. Open the ADF top cover ENWW User-replaceable parts 229 Push down on the locking tab (callout 1), and rotate the top of 2) 3. 2.
Service Manual
Page 254
2. Pinch the roller latch (callout 1) to release it, and then slide it out of the MFP. Remove the cassette from the tray. 2. Figure 5-22 Remove the tray 2, 3, 4, or 5 pickup and feed rollers (1 of the shaft. Figure 5-21 Remove the fuser Tray 2, 3, 4, or 5 pickup and feed rollers 1. Squeeze the two blue tabs on the fuser to release the roller, and then slide the roller off of 2) 236 Chapter 5 Removal and replacement ENWW
2. Pinch the roller latch (callout 1) to release it, and then slide it out of the MFP. Remove the cassette from the tray. 2. Figure 5-22 Remove the tray 2, 3, 4, or 5 pickup and feed rollers (1 of the shaft. Figure 5-21 Remove the fuser Tray 2, 3, 4, or 5 pickup and feed rollers 1. Squeeze the two blue tabs on the fuser to release the roller, and then slide the roller off of 2) 236 Chapter 5 Removal and replacement ENWW
Service Manual
Page 296
Feed-roller assembly 1. Figure 5-97 Remove the feed-roller assembly (2 of 4) 3. Figure 5-96 Remove the feed-roller assembly (1 of 4) 278 Chapter 5 Removal and replacement ENWW Remove one grounding screw (callout 2) on the front of the MFP. Remove two screws (callout 1), and then remove the inner front cover. Remove the tray 1 feed-assembly. 2.
Feed-roller assembly 1. Figure 5-97 Remove the feed-roller assembly (2 of 4) 3. Figure 5-96 Remove the feed-roller assembly (1 of 4) 278 Chapter 5 Removal and replacement ENWW Remove one grounding screw (callout 2) on the front of the MFP. Remove two screws (callout 1), and then remove the inner front cover. Remove the tray 1 feed-assembly. 2.
Service Manual
Page 297
Disconnect one connector (callout 4; Remove the feed-roller assembly. 4. J89) and unwind the wire harness from the MFP. Remove two screws (callout 3). Figure 5-98 Remove the feed-roller assembly (3 of 4) ENWW Internal assemblies 279 Figure 5-99 Remove the feed-roller assembly (4 of 4) 5.
Disconnect one connector (callout 4; Remove the feed-roller assembly. 4. J89) and unwind the wire harness from the MFP. Remove two screws (callout 3). Figure 5-98 Remove the feed-roller assembly (3 of 4) ENWW Internal assemblies 279 Figure 5-99 Remove the feed-roller assembly (4 of 4) 5.
Service Manual
Page 298
6. Fasten the feed-roller assembly to the upright position. Remove the back cover. 280 Chapter 5 Removal and replacement ENWW Figure 5-100 ...an error message 13.20.00 JAM appears on the control-panel display when the MFP power is turned on the control-panel display after you replace the feed-roller assembly, verify that this sensor-flag spring is installed, the sensor-flag spring must ...the hole in Figure 5-100 Sensor-flag spring placement on the flag. Reinstallation tip: When the feed-roller assembly is installed correctly. If a paper-jam error message 13.20.00 JAM appears on .
6. Fasten the feed-roller assembly to the upright position. Remove the back cover. 280 Chapter 5 Removal and replacement ENWW Figure 5-100 ...an error message 13.20.00 JAM appears on the control-panel display when the MFP power is turned on the control-panel display after you replace the feed-roller assembly, verify that this sensor-flag spring is installed, the sensor-flag spring must ...the hole in Figure 5-100 Sensor-flag spring placement on the flag. Reinstallation tip: When the feed-roller assembly is installed correctly. If a paper-jam error message 13.20.00 JAM appears on .
Service Manual
Page 316
... must replace the 18-tooth gear on the gear, and then remove the gear. Put pressure on the MFP chassis. Figure 5-134 Cassette feed-roller shaft (push here while replacing the gear) Lifter-drive assembly 1. Remove the back cover. 298 Chapter 5 Removal and replacement ENWW Figure 5-133 Remove the paper... pickup drive assembly (6 of 6) 8. The groove on the shaft that the gear clips into can get stuck on the cassette feed-roller shaft to unlatch the retaining hook on this assembly, even if it is not worn, when you install the gear. See the following figure.
... must replace the 18-tooth gear on the gear, and then remove the gear. Put pressure on the MFP chassis. Figure 5-134 Cassette feed-roller shaft (push here while replacing the gear) Lifter-drive assembly 1. Remove the back cover. 298 Chapter 5 Removal and replacement ENWW Figure 5-133 Remove the paper... pickup drive assembly (6 of 6) 8. The groove on the shaft that the gear clips into can get stuck on the cassette feed-roller shaft to unlatch the retaining hook on this assembly, even if it is not worn, when you install the gear. See the following figure.
Service Manual
Page 386
Figure 6-1 DC controller component connections Item 1 2 3 4 5 6 7 8 9 Component Tray 1 pickup solenoid, SL101 Feed-roller clutch, CL101 Memory tag Laser/scanner Image scanner (+24 volts) Reversing-unit fan, FN103 Delivery-door switch, SW103 Reversing-unit motors: M104, M105, M106 Output-... J70 J65 J50 J85 J66 ENWW DC controller connections Each of the connections on the DC controller PCA is indicated in this section to identify MFP components. Diagrams for troubleshooting Use the diagrams in the following figure.
Figure 6-1 DC controller component connections Item 1 2 3 4 5 6 7 8 9 Component Tray 1 pickup solenoid, SL101 Feed-roller clutch, CL101 Memory tag Laser/scanner Image scanner (+24 volts) Reversing-unit fan, FN103 Delivery-door switch, SW103 Reversing-unit motors: M104, M105, M106 Output-... J70 J65 J50 J85 J66 ENWW DC controller connections Each of the connections on the DC controller PCA is indicated in this section to identify MFP components. Diagrams for troubleshooting Use the diagrams in the following figure.