HP 4 Plus Manual
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Drum Rotation Functional Check . . . . . . . . . . . 7-50 High Voltage Power Supply Assembly . . . . . . . . 7-51 Interface Troubleshooting . . . . . . . . . . . . . . . . . 7-52 Communications Check . . . . . . . . . . . . . . . . 7-52 Test Message . . . . . . . . . . . . . . . . . . . . . . 7-52 AUTOEXEC.BAT Standard Configurations . . . . . 7-53 Parallel DOS Commands . . . . . . . . . . . . . . . 7-53 Serial MS-DOS Commands . . . . . . . . . . . . . . 7-53 Communications Checks . . . . . . . . . . . . . . . . 7-54 MIO Troubleshooting . . . . . . . . . . . . . . . . . . . 7-56 Troubleshooting Hints . . . . . . . . . . . . . . . . . 7-56 Explanation of Self Test Printout . . . . . . . . . . . 7-57 Troubleshooting Aids . . . . . . . . . . . . . . . . . . . 7-59 Component Locations . . . . . . . . . . . . . . . . . . 7-59 Repetitive Defect Template . . . . . . . . . . . . . . 7-67 Voltage Test Points . . . . . . . . . . . . . . . . . . 7-69 Measuring the DC Voltage Levels . . . . . . . . . . . 7-69 8Parts and Diagrams How To Use the Parts Lists . . . . . . . . . . . . . . . . . 8-1 Parts Lists and Illustrations . . . . . . . . . . . . . . . 8-2 Accessory Parts . . . . . . . . . . . . . . . . . . . . . . 8-33 SIMM Memory . . . . . . . . . . . . . . . . . . . . . 8-38 Miscellaneous Parts and Accessories . . . . . . . . . 8-39 Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . 8-40 ADuplexer Functional Overview . . . . . . . . . . . . . . . . . . A-2 Duplex Printing . . . . . . . . . . . . . . . . . . . . . A-3 Switchback Assembly . . . . . . . . . . . . . . . . . . A-3 Holding Tray . . . . . . . . . . . . . . . . . . . . . . A-3 Electrical Overview . . . . . . . . . . . . . . . . . . . A-5 Installing the Optional Duplexer . . . . . . . . . . . . . A-6 Removal and Replacement . . . . . . . . . . . . . . . . A-8 Required Tools . . . . . . . . . . . . . . . . . . . . . A-8 Removing the Covers . . . . . . . . . . . . . . . . . . A-9 Removing the Switchback Covers . . . . . . . . . . . A-9 Removing the Side Cover on Power Side . . . . . . . A-10 Removing the Side Cover on Gear Side . . . . . . . . A-11 Removing the Back Cover . . . . . . . . . . . . . . . A-13 Removing the Front Cover . . . . . . . . . . . . . . . A-13 Removing Internal Duplexer Components . . . . . . . A-14 Removing the Fan/Motor/Solenoid/Sensor . . . . . . . A-14 Removing the Switchback Paper Guide . . . . . . . . A-15 Contents-7
Removing the Paper Guide Assembly . . . . . . . . . A-16 Removing the Paper Roller . . . . . . . . . . . . . . A-17 Removing the Control PCA . . . . . . . . . . . . . . A-20 Removing the Power PCA . . . . . . . . . . . . . . . A-22 Removing the Holding Tray Center Paper Guide . . . A-23 Removing the Holding Tray Belt . . . . . . . . . . . A-24 Removing the Holding Tray Paper Sensor . . . . . . A-26 Removing the Switchback Assembly . . . . . . . . . A-27 Parts and Diagrams for the Duplexer . . . . . . . . . . A-28 BLaserJet 5/5M/5N Printer Product Information . . . . . . . . . . . . . . . . . . . . . B-2 Product Family Information . . . . . . . . . . . . . . . B-3 Identification . . . . . . . . . . . . . . . . . . . . . . . . B-5 Specifications . . . . . . . . . . . . . . . . . . . . . . . . B-6 HP LaserJet 5 / 5M / 5N . . . . . . . . . . . . . . . . . B-6 Related Documentation . . . . . . . . . . . . . . . . . . B-8 Laser Statement (Sweden/Finland) . . . . . . . . . . B-9 Control Panel Layout . . . . . . . . . . . . . . . . . . . B-10 Control Panel Keys . . . . . . . . . . . . . . . . . . . B-10 Control Panel Menus . . . . . . . . . . . . . . . . . . B-13 To change a control panel setting: . . . . . . . . . . . B-13 Printing Menu . . . . . . . . . . . . . . . . . . . . . B-15 PCL Fonts Menu . . . . . . . . . . . . . . . . . . . . B-17 PostScript Menu . . . . . . . . . . . . . . . . . . . . B-18 Job Menu . . . . . . . . . . . . . . . . . . . . . . . . B-18 Configuration Menu . . . . . . . . . . . . . . . . . . B-19 Memory Configuration Menu . . . . . . . . . . . . . B-21 Parallel Menu . . . . . . . . . . . . . . . . . . . . . B-22 Serial Menu . . . . . . . . . . . . . . . . . . . . . . . B-22 Resets Menu . . . . . . . . . . . . . . . . . . . . . . B-23 Test Menu . . . . . . . . . . . . . . . . . . . . . . . B-24 Service Mode . . . . . . . . . . . . . . . . . . . . . . . B-25 Setting the Page Count . . . . . . . . . . . . . . . . B-26 Setting the Cold Reset Default . . . . . . . . . . . . B-27 Skip Demo . . . . . . . . . . . . . . . . . . . . . . . B-28 Big Data . . . . . . . . . . . . . . . . . . . . . . . . B-28 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . B-28 Programming a Flash SIMM . . . . . . . . . . . . . . . B-29 Changing the Control Panel Display Language . . . B-30 NVRAM Init . . . . . . . . . . . . . . . . . . . . . . . . B-31 Understanding the PCL Self Test Printout . . . . . . . B-32 Infrared Communication . . . . . . . . . . . . . . . . . B-34 System Requirements . . . . . . . . . . . . . . . . . B-35 Contents-8
To Print Using the Infrared Port . . . . . . . . . . . . B-36 Troubleshooting IR Printing Problems . . . . . . . . B-38 Infrared Port Not Responding . . . . . . . . . . . . . B-41 Contents-9
1 Product Information Features HP LJ 4 HP LJ 4M HP LJ 4 Plus HP LJ4M Plus ModelC2001AC2021AC2037A C2039A Printer Speed 8 ppm8 ppm12 ppm 12 ppm Resolution 300/600 dpi 300/600 dpi 300/600 dpi 300/600 dpi Expandable I/O Buffer NoNoYes Yes Resource Savings NoNoYes Yes MEt NoNoYes Yes REt YesYes Yes Yes Languages Enhanced PCL5 Enhanced PCL5, Postscript Level 2 Enhanced PCL5 Enhanced PCL5, Postscript Level 2 PostScript Upgradeable C2080A*N/AC3129A* N/A Resident Memory 2 MByte6 MByte2 MByte 6 MByte Printer Max. Memory Capacity 34 MByte 26 MByte 66 MByte 50 MByte Available Memory Slots Four Two** Four Two ** PC Tray Capacity 250 Sheets 250 Sheets 250 Sheets 250 Sheets MP Tray Capacity 100 Sheets 100 Sheets 100 Sheets 100 Sheets Output Capacity 250 Sheets 250 Sheets 250 Sheets 250 Sheets 500 Sheet Optional Feeder C2083A C2083AC2083D C2083D Duplex Option N/AN/AC3157A C3157A Envelope Feeder C2082AC2082A C2082B C2082B Typefaces 45 PCL45 PCL 35 Postscript 45 PCL 45 PCL 35 Postscript Interfaces Serial (25 pin) Parallel Serial (25 pin) Parallel, Local Talk Serial (9 pin) Parallel Serial (9 pin) Parallel Local Talk MIO Slots YesYes (J2341A) YesYes (J2552A) EconoMode NoNoYes Yes Cartridge Slot YesYes Yes Yes Power Save NoNoYes Yes Monthly Usage (pages) Up to 20,000 Up to 20,000 Up to 20,000 Up to 20,000 *The PostScript upgrade requires an additional 4 MB SIMM. **PostScript & Memory SIMM already occupy 2 slots. Table 1-1Printer Features Product Information 1-1
Product Family Information The model HP C2021A is identical to the model HP C2001A from a hardware standpoint, as is the model HP C2039A 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 procedures for all products are similar. Some LaserJet 4 accessories are compatible with the LaserJet 4 Plus and some are not. The compatibility chart below may be used when there is a question of accessory compatibility. Accessory DescriptionDoes it work in the HPLaserJet 4? Does it work in the HPLaserJet 4 Plus? C2082A Envelope Feeder Yes No C2082B Envelope Feeder YesYes C2083A Optional 500 Sheet Feeder Assembly Yes No C2083D Optional 500 Sheet Feeder Assembly Yes Yes C2085A 250 Sheet Universal PC tray Yes No C2085D 250 Sheet Universal PC tray No Yes C3129A PostScript SIMM NoYes C2080A PostScript SIMM Yes No C2063A Memory (1 MByte) Yes Yes C2064A Memory (2 MByte) Yes Yes C2065A Memory (4 MByte) Yes Yes C2066A Memory (8 MByte) Yes Yes C3130A * Memory (1 MByte) NoYes C3131A * Memory (2 MByte) No Yes C3132A* Memory (4 MByte) No Yes C3133A* Memory (8 MByte) NoYes C3146A * Memory (16 MByte) No Yes C3157A Duplex Assembly NoYes 92298A Toner Cartridge YesYes *If HP LaserJet 4 Plus Optional Memory (C3130A, C3131A, C3132A, C3133 or C3146A) is installed in the HP LaserJet 4, the printer will display a “53.1X.08 ERROR” (X indicates the position of the SIMMs slot). Table 1-2Product Family Compatibility Matrix 1-2 Product Information
Identification The model number is on a label placed on the outside, rear cover of the printer. The model number (C2001A, C2021A, C2037A or C2039A) is found at the top of the label. The model number is the base number for all printers. The serial number contains information about the printer Country of Origin. The serial number Alpha section refers to the Country of Origin, the Revision Level and the Production Code. The Numeric section refers to the production number of the printer. See the following for information about the production codes. A typical serial number would consist of: CC R P XXXXXX Code Meaning CC Country of Origin R Revision Number - Alphanumeric, no vowels P Production Code - Alphanumeric, no vowels XXX-XXXX Numeric serial number - Numeric, no alphas TR1 FCC ID: B94C2037A 24131 POWE R R ATING:100-120V 50-60 Hz, 7.8A MANUFACTURE D: C2037A Made in Japan C2037A XXX-XXXX Figure 1-1 Printer Identification Label for the HP LaserJet 4 Plus/4M Plus Product Information 1-3
Figure 1-2 Printer Identification Label for the HP LaserJet4/4M 1-4 Product Information
Specifications HP LaserJet 4 and 4 Plus DimensionHP LaserJet 4/4M (C2001A/C2021A) HP LaserJet 4 Plus HP LaserJet 4M Plus (C2037A/C2039A) Width 16.4 in (416 mm) 16.4 in (416 mm) Depth 15.9 in (403 mm) 15.9 in (403 mm) Height 11.7 in (297 mm) 11.7 in (297 mm) Weight (with toner cartridge) 37 lbs. (18.3 kg) 37 lbs. (18.3 kg) Table 1-3Printer Dimensions Watts (typical) Volts Freq 4/4M 4 Plus/4M Plus 100 Vac ± 10% 120 Vac ± 10% 50/60 Hz ± 2 Hz 50/60 Hz ± 2 Hz printing = 195 standby = 55 printing = 300 standby = 80 PowerSave=25 220 Vac ± 10% 240Vac ± 10% 50/60 Hz ± 2 Hz 50/60 Hz ± 2 Hz printing = 195 standby = 55 printing =300 standby = 80 PowerSave=25 Table 1-4Power Specifications Product Information 1-5
Status100/115 V 4/4M 4 Plus/4M Plus 220/240 V 4/4M 4 Plus/4M Plus Product Rating 6.4 amps 7.8 amps 3.1 amps 4.0 amps Peak Inrush Current 22 amps 22 amps 22 amps 22 amps 25% Decay Time 13 msec 18 msec 11 msec 11 msec Peak Fuser Current 38 amps 51 amps 17 amps 22 amps Return-to Average Time 200 msec 200 msec 200 msec 200 msec Table 1-6Electrical Specifications Operating Environment Temperature: 10° C to 32.5 ° C (50° F to 90.5 ° F) Humidity: 20-80% (no condensation) Storage Environment (not including toner cartridge) Temperature: -20° to 60 ° C (-4 ° to 140 °F) Humidity : 15-90% (no condensation) Table 1-5Environmental Specifications 1-6 Product Information