Hp LaserJet 4050 Printer series User Manual Page 198
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A-18 Specifications
EN
Serial Cable Specifications
Serial communication is simply the transmission of data one bit at
a time. With just one bit to transmit at a time, data can be transferred
with a simple electrical circuit consisting of only two wires. In this
fashion, an eight-bit byte is transmitted one bit at a time and the
individual bits are reassembled into the original byte on the
receiving end. Bit transmission occurs from the least significant bit
to the most significant bit.
Serial Cable Specifications
Specification Description
Data Terminal
Equipment (DTE)
Transmit on pin 2 and receive on pin 3. A printer is typically a DTE
device.
Data
Communications
Equipment (DCE)
Transmit on pin 3 and receive on pin 2. A modem is typically a DCE
device.
Asynchronous
Communication
Asynchronous communication or start/stop transmission is the concept
of enclosing a character with a start and stop bit. The RS-232
specification defines the standards for asynchronous serial
communication.
Parity Parity is a method of error checking at the bit level.
HP LaserJet Serial
Data Format
Transmission is asynchronous, with one start bit, eight data bits and
one stop bit. Parity is not used. HP LaserJet printers are DTE devices.
Serial Interface
Protocol
(handshaking)
Handshaking is the method by which the flow of data between two
devices is controlled. The two methods of flow control that are used by
HP LaserJet printers are software flow control, in which one device
controls another by the content of the data, and hardware flow control,
in which one device can control another by changing the voltage on a
wire.
Software Flow
Control (software
handshaking)
Xon/Xoff is a data stream handshake protocol that sends Xon (DC1;
11 Hex) to the computer from the printer’s transmit data pin when the
printer is able to accept data and sends Xoff (DC3; 13 Hex) when the
printer is not ready for data.
- HP LaserJet 4050, 4050 T 1
- 4050 N, and 4050 TN Printers 1
- User’s Guide 1
- Hewlett-Packard Company 4
- 11311 Chinden Boulevard 4
- Boise, Idaho 83714 4
- Features of Acrobat Reader 5
- Magnifying the Page View 6
- Paging Through a Document 6
- Browsing with Thumbnails 7
- Finding Words 7
- Printing the document 7
- Setting Up the Printer 8
- Using the Printer 9
- Online Services 10
- For Europe: 11
- For Asia Pacific Region: 11
- For Latin America: 11
- HP FIRST 13
- In-country Support Numbers 16
- Contents 17
- 2 Printing Tasks 18
- 3 Printer Maintenance 19
- 4 Problem Solving 19
- 5 Service and Support 19
- A Specifications 20
- B Control Panel Menus 20
- D Printer Commands 21
- E Regulatory Information 21
- Glossary 21
- Printer Basics 23
- Printer Features and Benefits 24
- Printer Information 25
- Printer Parts and Locations 26
- Accessories and Supplies 28
- Suggested Accessories 29
- Ordering Information 30
- Chapter 1: Printer Basics 9 31
- HP LaserJet Printer Family 33
- Paper Specification Guide 33
- 4050 N, and 4050 TN User 33
- Documentation CD-ROM 33
- Control Panel Layout 34
- UNEXPECTED PAPER SIZE 35
- MODE=CASSETTE 35
- ACCESS DENIED MENUS LOCKED 37
- Printer Software 39
- 2. Level 1 emulation only 42
- Macintosh 43
- Software for Windows 44
- Chapter 1: Printer Basics 23 45
- Printer Driver Help 46
- HP FontSmart 47
- HP Resource Manager 47
- Networked Devices 49
- Infrared Devices 49
- Apple LaserWriter 8 Driver 50
- HP LaserJet Utility 50
- Software for Networks 51
- HP Web JetAdmin 52
- Printing Tasks 53
- Selecting the Output Bin 54
- Figure 7 Rear Output Bin 55
- Loading Tray 1 56
- Loading Tray 2 (4050/4050 N) 57
- Printing Both Sides of Paper 63
- (Optional Duplexer) 63
- DUPLEX=ON 64
- BINDING 66
- ORIENTATION 66
- Printing Special Paper 67
- Paper Orientation 68
- SMALL PAPER SPEED=SLOW 69
- Loading Envelopes in Tray 1 70
- Envelope Feeder) 71
- Printing Labels 75
- Printing Transparencies 77
- Heavy Paper 78
- Setting Custom Paper Sizes 79
- CONFIGURE CUSTOM PAPER=YES 80
- TRAY 1 SIZE=CUSTOM 80
- Advanced Printing Tasks 81
- RIP ONCE 82
- Printer Driver Features 82
- Printing with a Watermark 82
- Different First Page 83
- • TRAY 1 MODE=FIRST 85
- TRAY 1 MODE=FIRST 86
- TRAY 1 MODE=CASSETTE 87
- Job Retention Features 89
- QUICK COPY JOBS MENU 90
- COPIES=1 90
- Proofing and Holding a Job 91
- Printing a Private Job 93
- PRIVATE/STORED JOBS MENU 94
- PIN:0000 94
- Storing a Print Job 95
- InfraRed Receiver 97
- Printer Maintenance 99
- Managing the Toner Cartridge 100
- Checking the Toner Level 101
- Resetting the HP TonerGauge 101
- Redistributing the Toner 103
- NEW TONER CARTRIDGE 104
- Cleaning the Printer 105
- PRINT QUALITY MENU 108
- CREATE CLEANING PAGE 108
- PERFORM PRINTER MAINTENANCE 109
- Problem Solving 111
- Clearing Paper Jams 112
- Solving Repeated Paper Jams 124
- FOR HELP PRESS THE ? KEY 125
- Mopy Disk Error Messages 136
- Error Description Solution 137
- Troubleshooting Steps 139
- (Follow the steps in the 139
- Determining Printer Problems 140
- PRINTING 141
- CONFIGURATION 141
- TRAY 1 MODE 145
- CASSETTE 145
- Macintosh Users 146
- Selecting an Alternate PPD 148
- Renaming the Printer 148
- Item Explanation 149
- PS Troubleshooting 150
- Receiver Problems 151
- HP JetDirect Print Server 153
- INFORMATION MENU 155
- PRINT MENU MAP 155
- PRINT CONFIGURATION 156
- PCL or PS Font List 158
- Service and Support 159
- Statement 161
- TONER LOW 163
- Service Information Form 164
- HP Software License Terms 165
- Roma Eur 169
- Istanbul 171
- Latin America and 172
- South America 172
- Asia and the Pacific 174
- Indonesia 175
- Korea, Republic of 175
- Thailand 177
- Middle East and Africa 178
- South Africa 180
- United Arab Emirates 180
- Zimbabwe 180
- Specifications E 181
- Paper Specifications 182
- Specifications A-3 183
- A-4 Specifications 184
- Specifications A-5 185
- A-6 Specifications 186
- Supported Types of Paper 187
- Transparencies 190
- Envelopes 191
- Acceptable 192
- Unacceptable 192
- Card Stock and Heavy Paper 193
- Card Stock Construction 194
- Card Stock Guidelines 194
- Printer Specifications 195
- Environmental Specifications 196
- General Specifications 197
- Serial Cable Specifications 198
- 25 to 9 Pin Adapter (C2809A) 199
- Control Panel Menus 201
- Quick Copy Jobs Menu 202
- Private/Stored Jobs Menu 203
- Information Menu 204
- Paper Handling Menu 205
- B-6 Control Panel Menus 206
- Control Panel Menus B-7 207
- Print Quality Menu 208
- Control Panel Menus B-9 209
- Printing Menu 210
- B-12 Control Panel Menus 212
- Control Panel Menus B-13 213
- Configuration Menu 214
- Control Panel Menus B-15 215
- B-16 Control Panel Menus 216
- Control Panel Menus B-17 217
- B-18 Control Panel Menus 218
- I/O Menu 219
- B-20 Control Panel Menus 220
- EIO Menu (4050 N/4050 TN) 221
- B-22 Control Panel Menus 222
- Resets Menu 223
- B-24 Control Panel Menus 224
- Printer Memory and Expansion 225
- Installing Memory 227
- Checking Memory Installation 229
- RESOURCE SAVE=ON 230
- PCL MEMORY 230
- PS MEMORY 230
- I/O BUFFER=ON 231
- I/O SIZE 231
- Printer Commands F 233
- Understanding PCL 5e Printer 234
- Command Syntax 234
- Combining Escape Sequences 235
- Entering Escape Characters 236
- Selecting PCL 5e Fonts 237
- Regulatory Information G 241
- Protecting the Environment 242
- HP LaserJet Printer 244
- Material Safety Data Sheets 245
- Declaration of Conformity 246
- Safety Statements 247
- Laser Statement for Finland 248
- Numerics 251
- 2 Index 252
- 4 Index 254
- 6 Index 256
- 8 Index 258
- Copyright© 1999 260
- Hewlett-Packard Co 260
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