RemovalTo remove the fuser bulb
1. Open the top cover. Remove the EP cartridge and keep it in a safe plate. 3. Remove the screw with a gold flange from the right end of the roller cleaner cover, and remove it. 5. Remove the two screws with black flanges from the outer cover, and remove it. 6. Carefully pull outward on the metal clamp securing the fuser bulb. 7. Slide the fuser bulb out of the heat roller.
To install the fuser unit
1. Set the fuser unit down on the guides and align the inner sides. 2. Make sure the fuser is seated correctly. There should be no space between the fuser unit screws and the printer frame. CAUTION If the fuser unit is not perfectly seated inside of the guides, paper jam problems can occur. 3. Tighten the two captive screws on the fuser unit. Check to be sure the unit is secure. 4. Plug the three connectors from the fuser unit wires into the connectors under the fan. See Figure 4-21. 5. Install...
Table Error Messages 1
6. Low voltage power supply defect. 1. Non-volatile memory code 06 set wrong. 2. Low voltage power supply defect. 2. Fuser temperature sensor not positioned correctly. 3. Fuser temperature sensor defect. 4. Low voltage power supply defect.
Storing Consumables
Paper should be stored in a cool, dry place. Keep it out of direct sunlight. Avoid storing paper in an area with high humidity. When the printer isn't going to be used for a long time, remove all the paper from the cassettes and wrap it in the original wrapper. EP Cartridges should be stored in a cool, dry place. Do not store them in direct light. Avoid storing the EP cartridges in areas with high temperature and humidity 0-35o C, 32-95 F and 10-80 relative humidity . Do not store the...
remove the paper exit sensor
Open the top cover. Remove the EP cartridge and keep it in a safe place. Remove the screw with a gold flange from the right end of the roller cleaner cover assembly, and remove it. Remove right and left screws with black flanges from the outer cover, and remove it. Remove the four screws with black flanges from the inner cover assembly and remove it. Remove the gold screw from the paper exit sensor to remove it.
remove the fuser thermostat
Open the top cover. Remove the EP cartridge and keep it in a safe place. Remove a screw with a gold flange from the right side of roller cleaner cover assembly and remove it. Remove the right and left screws with black flanges from the outer cover, and remove it. Remove the four screws with black flanges from the inner cover assembly, and remove it. Remove the two gold screws from the fuser thermostat to remove it.
Table Localtalk Serial Connector Pin Assignments 1
TXD- Low true data line from the printer to user system. RXD- Low true data line from the user system to the printer. TXD High true data line from the printer to the user system. RXD High true data line from the user system to the printer. The SCSI connector on the back of the printer lets you connect a hard disk drive to the printer. Many hard disk drives made for the Macintosh can be plugged into the printer. The recommended disk drives are self-contained units that connect to the printer...
Table Scsi Connector Pin Assignments 1
NOTE Signals with an asterisk are low active. NOTE Signals with an asterisk are low active. ACK Indicates an acknowledgement for a REQ ACK data transfer handshake. ACK is received as a response to the REQ signal. ATN Indicates an attention condition. BSY Indicates the SCSI bus is being used. C D Indicates Control or Data information is on the data bus. I O Controls the direction of data movement on the SCSI bus. True indicates input to the initiator. Also used to distinguish between selection...
RemovalTo remove the fuser temperature sensor
1. Open the top cover. Remove the EP cartridge and keep it in a safe place. 3. Remove the screw with a gold flange from the right end of the roller cleaner cover assembly, and remove it. 5. Remove the right and left screws with black flanges from the outer cover, and remove it. 7. Remove four screws with black flanges from the inner cover, and remove it. 8. Remove the gold screw from the temperature sensor, and remove it.
Exposure Process
Except for the semiconductor, diode-type laser, the printer uses the same Xerographic process as conventional copiers. When the printer receives a print start signal from the I O Controller, the laser diode starts emitting light. The laser beam from the laser diode is collimated by a cylinder lens before being transmitted to the polygon mirror. The six-sided polygon mirror is driven by the scanner motor that rotates at a constant speed RPM . Each rotation of the polygon mirror causes one scan...
Fuser Thermostat 1
TABLE 1-1. PART NAMES AND FUNCTIONS CONTINUED TABLE 1-1. PART NAMES AND FUNCTIONS CONTINUED Displays the printer's operating status, error messages, and corrective actions. The keypad is used for setting printer operating parameters. Light Emitting Diodes LED used to erase any residual charge on the drum. Turns AC power supply ON and OFF. The switch is part of the LVPS. Determines that the EP cartridge is seated correctly. Detects the surface temperature of the heat roller and transmits a...
To remove the rear cover
Remove the manual feed tray or the multi media power feeder. Remove the top cover. Remove the front cover. Remove the left cover. Remove the right cover. Remove the remaining two screws with silver flanges that attaches the rear cover to the frame. 8. Pull the rear cover straight out and away from the frame. 8. Pull the rear cover straight out and away from the frame.
Lithium Battery Information Caution
Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer's instructions. A dead lithium battery is considered hazardous waste and has some potential for explosion if improperly handled. Mark the battery Dead. Place it in a zip-lock wrapper and the packaging used to ship the replacement battery, and return the dead battery to Apple, where it will be disposed of...
RemovalTo remove the exit roller assembly
1. Remove the outer exit-chute assembly. 3. Remove the inner exit-chute. 4. Remove the fuser fan. See page 4-40 for instructions. 5. Remove the belt on the right end of the exit roller assembly. See the next procedure for instructions. 6. Remove the E-rings from each end of the roller shaft. 7. Slide the pulley and bearing off of the right end of the exit roller shaft. 8. Slide the exit roller shaft to the left and remove the exit roller assembly from the printer.
RemovalTo remove the take away roller assembly
1. Remove the multi media power feeder as required. 3. Remove the black screw with a hexagonal flange that secures the ground wire. 4. Remove the connector CN2 from the motor assembly, connector CN3 from the paper feed solenoid, and connector CN4 from the paper out sensor. 5. Remove the harness from the wire clamp on the bracket assembly. 6. Remove the four gold screws from the bracket assembly. 7. While pressing the JAM CLEAR button on the bottom of the bracket, move the bracket upward. 8....
RemovalTo remove the drive unit
1. Remove the power cord cover. 6. Remove the electrical box cover. 7. Remove the control panel assembly. 8. Remove the following connectors see Plug Connector Locations at the end of this section P J61 on the Low Voltage Power Supply PCB P J1, P J4, P J7, P J8, P J9, and P J10 DC Controller 9. Remove the screw that secures the cables to the DC Controller connectors P J81, P J82, P J83, P J84, P J91, P J92, P J93, and P J94, and the green ground wire. 1 0. Remove the four screws with silver...
To remove the electrical box cover
1 . Remove the power cord cover. Remove the top cover. Remove the front cover. Remove the left cover. Remove the fuser fan. Remove the seven screws with silver flanges from the electrical box cover. 7. Move the electrical box cover straight out and away from the printer. BEFORE REMOVING THE ELECTRICAL BOX COVER SCREWS, NOTE THE BEFORE REMOVING THE ELECTRICAL BOX COVER SCREWS, NOTE THE
Printing Process
DRUM CLEANING DETACK TRANSFER FEED DRUM CLEANING DETACK TRANSFER FEED The main charger places a negative charge on the drum. When an image signal is received, the laser emits light to the drum and erases the negative charges to form an electrostatic latent image. The magnetic roller is covered by a thin film of magnetic toner. The toner negatively charged is attracted to the latent image on the drum and forms a visible image on the drum. The transfer charger applies a positive charge to the...