Service Manual
Page 16
... HP LaserJet 4 Plus Optional Memory (C3130A, C3131A, C3132A, C3133 or C3146A) is installed in the HPLaserJet 4? Product Family Information The model HP C2021A is identical to the model HP C2037A. The models HP C2021A and C2039A printers include the following features: • PostScript Level 2 SIMM • AppleTalk MIO Card • 4 MBytes of RAM In every instance the repair...
... HP LaserJet 4 Plus Optional Memory (C3130A, C3131A, C3132A, C3133 or C3146A) is installed in the HPLaserJet 4? Product Family Information The model HP C2021A is identical to the model HP C2037A. The models HP C2021A and C2039A printers include the following features: • PostScript Level 2 SIMM • AppleTalk MIO Card • 4 MBytes of RAM In every instance the repair...
Service Manual
Page 105
... control or process to ensure that image. • Repairs resulting from using different toner formulations found in maintaining that a Non-HP toner cartridge functions at the high level of reliability of an HP LaserJet toner cartridge. The high print quality of HP LaserJet printers is from the use of Non-HP toner cartridges are : • Hewlett-Packard has...
... control or process to ensure that image. • Repairs resulting from using different toner formulations found in maintaining that a Non-HP toner cartridge functions at the high level of reliability of an HP LaserJet toner cartridge. The high print quality of HP LaserJet printers is from the use of Non-HP toner cartridges are : • Hewlett-Packard has...
Service Manual
Page 155
In every instance, tasks that are sensitive to prevent damage during re-assembly. Do not repair component failures within these areas to avoid being serviced are especially susceptible to ESD damage. Be careful when working ...provided. These items include: • All Pickup Rollers and Separation Pad • Transfer Roller Replacement • Installing the Toner Cartridge Servicing the printer involves replacing printed circuit and electro-mechanical assemblies. Remove the assemblies in Chapter 4, "Preventive Maintenance." Some sheet metal edges, particularly around the formatter ...
In every instance, tasks that are sensitive to prevent damage during re-assembly. Do not repair component failures within these areas to avoid being serviced are especially susceptible to ESD damage. Be careful when working ...provided. These items include: • All Pickup Rollers and Separation Pad • Transfer Roller Replacement • Installing the Toner Cartridge Servicing the printer involves replacing printed circuit and electro-mechanical assemblies. Remove the assemblies in Chapter 4, "Preventive Maintenance." Some sheet metal edges, particularly around the formatter ...
Service Manual
Page 157
... and flat washer PURPOSE Used to fasten metal or plastic to threaded plastic or metal. Removal and Replacement 6-3 If a self-tapping screw-hole strips, repair of the screw-hole or replacement of the affected assembly is located and replace each type of screws you must remove. Threaded Phillips w/captive star... Typically, plated screws are used in areas visible to the customer, and black screws are used in length depending on the thickness of the printer. The screws can vary in all other areas of the material being fastened. Table 6-2 describes the screws used in the...
... and flat washer PURPOSE Used to fasten metal or plastic to threaded plastic or metal. Removal and Replacement 6-3 If a self-tapping screw-hole strips, repair of the screw-hole or replacement of the affected assembly is located and replace each type of screws you must remove. Threaded Phillips w/captive star... Typically, plated screws are used in areas visible to the customer, and black screws are used in length depending on the thickness of the printer. The screws can vary in all other areas of the material being fastened. Table 6-2 describes the screws used in the...
Service Manual
Page 254
... Check When troubleshooting a Lower Cassette failure, always prove the failure by removing the Lower Cassette from the printer. Test the repair after each replacement. 1 Reseat all connectors in the order given. Next, test the printer's ability to move and print media satisfactorily without the Lower Cassette installed. After the failure has been associated...
... Check When troubleshooting a Lower Cassette failure, always prove the failure by removing the Lower Cassette from the printer. Test the repair after each replacement. 1 Reseat all connectors in the order given. Next, test the printer's ability to move and print media satisfactorily without the Lower Cassette installed. After the failure has been associated...
Service Manual
Page 255
... EP CART Message The printer detects the presence of the Toner Cartridge and the level of toner present in the cartridge through the condition of toner in the cartridge cavity falls past the minimum level. If the contacts are dirty or damaged, clean the contacts after the repair. 3 Replace the High Voltage...
... EP CART Message The printer detects the presence of the Toner Cartridge and the level of toner present in the cartridge through the condition of toner in the cartridge cavity falls past the minimum level. If the contacts are dirty or damaged, clean the contacts after the repair. 3 Replace the High Voltage...
Service Manual
Page 281
Table 7-29 High Voltage System Checks Checks Action Are the connectors for the printer's electro-photographic processes. Replace the High Voltage Power Supply if the connection is given in the table below (see Figure 7-18 for High Voltage PCA ... supply is used to their respective terminals. Clean the terminals with alcohol only. A summary of the major components of the high voltage system, is not repairable. If any are connected to power the High Voltage Power Supply Assembly. Troubleshooting 7-51
Table 7-29 High Voltage System Checks Checks Action Are the connectors for the printer's electro-photographic processes. Replace the High Voltage Power Supply if the connection is given in the table below (see Figure 7-18 for High Voltage PCA ... supply is used to their respective terminals. Clean the terminals with alcohol only. A summary of the major components of the high voltage system, is not repairable. If any are connected to power the High Voltage Power Supply Assembly. Troubleshooting 7-51
Service Manual
Page 301
... included at the end of this chapter illustrate the major subassemblies and component parts of the HP LaserJet 4/4M, LaserJet 4 Plus/ 4M Plus, and LaserJet 5/5M/5N printers. Parts that the part chosen has the correct voltage rating for the machine under repair. Figures referred to in the tables are listed on 8-33. Parts and Diagrams 8-1 8 Parts and...
... included at the end of this chapter illustrate the major subassemblies and component parts of the HP LaserJet 4/4M, LaserJet 4 Plus/ 4M Plus, and LaserJet 5/5M/5N printers. Parts that the part chosen has the correct voltage rating for the machine under repair. Figures referred to in the tables are listed on 8-33. Parts and Diagrams 8-1 8 Parts and...
Service Manual
Page 397
Product Family Information The model HP C3916A, C3917A, and C3952A are not. Some LaserJet 4+ accessories are compatible with the LaserJet 5/5M/5N and some are very similar from a hardware service standpoint. The models HP C2039A and C3917A printers add the following features: • PostScript Level 2 SIMM ...be used when there is a question of RAM (2 MBytes for all LaserJet 4+ and LaserJet 5 printers products are very similar. LaserJet 5/5M/5N Printer B-3 In every instance the repair procedures for the C3917A) The model HP C3952A adds a 10-baseT MIO card to 35,000 *The PostScript ...
Product Family Information The model HP C3916A, C3917A, and C3952A are not. Some LaserJet 4+ accessories are compatible with the LaserJet 5/5M/5N and some are very similar from a hardware service standpoint. The models HP C2039A and C3917A printers add the following features: • PostScript Level 2 SIMM ...be used when there is a question of RAM (2 MBytes for all LaserJet 4+ and LaserJet 5 printers products are very similar. LaserJet 5/5M/5N Printer B-3 In every instance the repair procedures for the C3917A) The model HP C3952A adds a 10-baseT MIO card to 35,000 *The PostScript ...