Сервис мануал hp 2035

1 Product basics

Product comparison ……………………………………………………………………………………………………………..

2

HP LaserJet P2050 Series Printers ………………………………………………………………………….

2

HP LaserJet P2030 Series Printers ………………………………………………………………………….

3

Product features …………………………………………………………………………………………………………………..

4

HP LaserJet P2050 Series Printers ………………………………………………………………………….

4

HP LaserJet P2030 Series Printers …………………………………………………………………………

5

Product walkaround ………………………………………………………………………………………………………………

6

HP LaserJet P2050 Series Printers ………………………………………………………………………….

6

Front view ………………………………………………………………………………………………

6

Rear view ………………………………………………………………………………………………

7

Interface ports ………………………………………………………………………………………..

8

Model and serial number label ………………………………………………………………….

8

HP LaserJet P2030 Series Printers ………………………………………………………………………….

9

Front view ………………………………………………………………………………………………

9

Rear view …………………………………………………………………………………………….

10

Interface ports ………………………………………………………………………………………

11

Model and serial-number label location ……………………………………………………

12

Supported product software …………………………………………………………………………………………………

13

Software included with the product …………………………………………………………………………

13

Software installation types for Windows ……………………………………………………

13

Macintosh software ……………………………………………………………………………….

13

Supported printer drivers for Windows (HP LaserJet P2050 Series Printers) ……………….

13

Supported printer drivers for Windows (HP LaserJet P2030 Series Printers) ……………….

13

Supported printer drivers for Macintosh (HP LaserJet P2050 Series Printers only) ……….

13

Supported printer drivers for Macintosh (HP LaserJet P2030 Series Printers only) ……….

14

Other software provided ……………………………………………………………………………………….

14

Software for Windows ……………………………………………………………………………

14

HP ToolboxFX (HP LaserJet P2050 Series Printers only) ……………

14

Status Alerts software (HP LaserJet P2030 Series Printers only) ………………..

14

Software for networks ……………………………………………………………………………

14

HP Web Jetadmin ………………………………………………………………….

14

Embedded Web server (HP LaserJet P2055dn, HP LaserJet

P2055x, and HP LaserJet P2035n printers only). ……………………….

14

HP LaserJet P2055d printer

HP LaserJet P2055dn printer

HP LaserJet P2055x printer

CE457A

CE459A

CE460A

● HP print cartridge, rated for up to 2,300 ●

Contains 128 MB RAM and is

pages

expandable to 384 MB.

● Tray 1 holds up to 50 sheets

● Tray 2 holds up to 250 sheets

● 125-sheet face-down output bin

● Straight-through output path

● 2-line control-panel display

● Hi-speed USB 2.0 port

● One open dual inline memory module

(DIMM) slot

2 Chapter 1 Product basics

ENWW

HP LaserJet P2035 printer

HP LaserJet P2035n printer

CE461A

CE462A

● Prints up to 30 pages per minute (ppm) on Letter-size paper and

Has the same features as the HP LaserJet P2035 model, with the

30 ppm on A4-size paper

following differences:

●

Contains 16 megabytes (MB) of random access memory (RAM).

●

10/100 networking port

●

HP print cartridge, rated for up to 2,300 pages

●

No parallel port

ENWW

Product comparison 3

Feature

Description

Performance

●

600 MHz processor

User interface

●

2-line display

● HP ToolboxFX (a Web-based status and problem-solving tool)

● Windows® and Macintosh printer drivers

● Embedded Web server to access support and order supplies (for network-connected models

only)

Printer drivers

● HP PCL 6 (included on CD)

● HP PCL 5c Universal Print Driver for Windows (HP UPD PCL 5c) (available for download from

the Web)

● HP postscript emulation Universal Print Driver for Windows (HP UPD PS) (available for

download from the Web)

● XML Paper Specification (XPS) Driver (available for download from the Web)

Resolution

● FastRes 1200—produces 1200-dots-per-inch (dpi) print quality for fast, high-quality printing of

business text and graphics

● ProRes 1200—produces 1200-dpi printing for the best quality in line art and graphic images

● 600 dpi—provides the fastest printing

Fonts

● 45 internal scalable fonts available for PCL and 35 for HP postscript emulation

● 80 device-matching screen fonts in TrueType format available with the software solution

Accessories

●

500-sheet input tray

● HP Jetdirect external print server

Connectivity

● Hi-Speed USB 2.0 connection

● Gigabit networking connection (HP LaserJet P2055dn and HP LaserJet P2055x only)

Supplies

● The supplies status page contains information about toner level, page count, and estimated

pages remaining.

● The product checks for an authentic HP print cartridge at installation.

● Integration with HP Sure Supply Web site for replacement-cartridge reordering

Supported operating systems

● Microsoft® Windows® 2000, Windows® Server 2003, Windows® XP, and Windows Vista™

● Macintosh OS X V10.3, V10.4, and V10.5

● Novell NetWare (TCP/IP only) (HP LaserJet P2055dn and HP LaserJet P2055x only)

Accessibility

● The online user guide is compatible with text screen-readers.

● The print cartridge can be installed and removed by using one hand.

4 Chapter 1 Product basics

ENWW

Feature

Description

Performance

● 266 MHz processor

User interface

● 2-button, 6 LED control panel

● Windows® and Macintosh printer drivers

● Embedded Web server to access support and order supplies (for network-connected models

only)

Printer drivers

● Host-based printer drivers for Windows and Macintosh, included on the product CD

● HP UPD PCL 5c printer driver (available for download from the Web)

● XML Paper Specification (XPS) printer driver (available for download from the Web)

Resolution

● FastRes 1200—produces 1200-dots-per-inch (dpi) print quality for fast, high-quality printing of

business text and graphics

● 600 dpi—provides the fastest printing

Fonts

● 45 internal scalable fonts

● 80 device-matching screen fonts in TrueType format available with the software solution

Connectivity

● Hi-Speed USB 2.0 connection

● Parallel connection (HP LaserJet P2035 printer only)

● 10/100 networking port (HP LaserJet P2035n printer only)

Supplies

● The supplies status page contains information about toner level, page count, and estimated

pages remaining.

● The product checks for an authentic HP print cartridge at installation.

● Integration with HP Sure Supply Web site for replacement-cartridge reordering

Accessories

● HP Jetdirect external print server

Supported operating systems

● Microsoft® Windows® 2000, Windows® Server 2003, Windows® XP, and Windows Vista™

● Macintosh OS X V10.3, V10.4, and V10.5

Accessibility

● The online user guide is compatible with text screen-readers.

● The print cartridge can be installed and removed by using one hand.

● All doors can be opened by using one hand.

● Media can be loaded in Tray 1 by using one hand.

1

Tray 1 (pull to open)

2

Top output bin

3

Control panel

4

Print-cartridge-door release button

5

On/off switch

6

Optional Tray 3 (included with the HP LaserJet P2055x printer)

7

Tray 2

8

Print-cartridge door

6 Chapter 1 Product basics

ENWW

ENWW

Product walkaround 7

8 Chapter 1 Product basics

ENWW

ENWW

Product walkaround 9

10 Chapter 1 Product basics

ENWW

ENWW

Product walkaround 11

12 Chapter 1 Product basics

ENWW

ENWW

Supported product software 13

14 Chapter 1 Product basics

ENWW

OS

Software

UNIX

To download the HP UNIX modelscripts, follow these steps.

1.

Go to www.hp.com, and click Software & Driver Download.

2.

Type the name of the product in the product name box.

3.

In the list of operating systems, click UNIX.

4.

Download the appropriate file or files.

Linux

For information, go to www.hp.com/go/linuxprinting.

Citrix

Use the printer driver provided with the product.

ENWW

Supported product software 15

16 Chapter 1 Product basics

ENWW

Service name

Description

port9100 (Direct Mode)

The default TCP/IP printing port on the HP Jetdirect print

server, accessed by software such as HP Standard Port

Line printer daemon (LPD)

LPD provides line printer spooling services for TCP/IP

systems. Use LPD services on the HP Jetdirect print server.

WS Print

Use the Microsoft Web Services for Devices (WSD) Print

services supported on the HP Jetdirect print server.

Service name

Description

SLP (Service Location Protocol)

Device Discovery Protocol, used to help find and configure

network devices. Used primarily by Microsoft-based software

programs.

multicast Domain Name Service (mDNS—also known as

Device Discovery Protocol, used to help find and configure

“Rendezvous” or “Bonjour”)

network devices. Used primarily by Apple Macintosh-based

software programs.

WS Discovery

Allows Microsoft WS discovery protocols on the print server.

LLMNR (TCP/IP v6)

Indicates whether link local multicast name resolution

(LLMNR) requests are responded to over IPv6.

NetBIOS over TCP/IP

Provides communication among applications on separate

computers within a local area network. Because the

programming interface runs through TCP/IP (NBT), each

computer in the network has both a NetBIOS name and an IP

address relevant to a host name (even though the two names

might not be the same).

DNS Client

DNS domain name that the HP Jetdirect print server resides in

(for example, support.hp.com).

Service name

Description

HTTP (hypertext transfer protocol)

Allows Web browsers to communicate with embedded Web

server.

EWS (embedded Web server)

Allows a user to manage the product through a Web browser.

SNMP (simple network management protocol)

Used by network programs for product management. SNMP

V3 and standard MIB-II (Management Information Base)

objects are supported.

Service name

Description

Web Jetadmin (WJA)

Management program that provides controlled access to

HP Jetdirect and product features.

EPC

HP Easy Printer Care Software 2.0 (EPC 2.0) provides

HP Web Jetadmin-type functions for small and micro

businesses with up to 15 HP LaserJet products. EPC 2.0

delivers effortless laser product upkeep and protection for your

printing investment, in addition to simple, consolidated

supplies replenishment.

BOOTP (bootstrap protocol)

For Automatic IP address assignment. BOOTP server

provides the product with an IP address. Requires the

administrator to type the product MAC hardware address on

the BOOTP server in order for the product to obtain an IP

address from that server.

Auto IP

For Automatic IP address assignment. If neither a DHCP

server nor a BOOTP server is present, this service allows the

product to generate a unique IP address.

Manual IP

Manually configure the IP address on the print server by using

the product control panel or the embedded Web server.

Telnet

Set configuration parameters by using the default IP address

to create a Telnet connection from your system to the HP

Jetdirect print server. When configured, the print server saves

the configuration when turned off and then turned on.

RARP

You can configure the print server to use RARP on UNIX and

Linux systems. Use RARP to answer the print server’s RARP

request and supply the print server with the IP address. The

RARP method allows you to only configure the IP address.

ARP/PING

You can configure an HP Jetdirect print server with an IP

address using the arp command from a supported system.

The workstation from which the configuration is made must be

located on the same network segment as the HP Jetdirect print

server.

18 Chapter 1 Product basics

ENWW

Service name

Description

port9100 (Direct Mode)

Printing service

Line printer daemon (LPD)

Printing service

Service name

Description

SLP (Service Location Protocol)

Device Discovery Protocol, used to help find and configure

network devices. Used primarily by Microsoft-based software

programs.

Service name

Description

HTTP (hypertext transfer protocol)

Allows Web browsers to communicate with embedded Web

server.

EWS (embedded Web server)

Allows a user to manage the product through a Web browser.

SNMP (simple network management protocol)

Used by network programs for product management. SNMP

V1, V2, and standard MIB-II (Management Information Base)

objects are supported.

BOOTP (bootstrap protocol)

For Automatic IP address assignment. BOOTP server

provides the product with an IP address. Requires the

administrator to type the product MAC hardware address on

the BOOTP server in order for the product to obtain an IP

address from that server.

Auto IP

For Automatic IP address assignment. If neither a DHCP

server nor a BOOTP server is present, this service allows the

product to generate a unique IP address.

Number

Button or light

Function

1

Control-panel display

Shows status information, menus, help information, and error messages.

2

Up arrow

Navigates to the next submenu or the next value in a menu selection list, moves

the cursor forward a single position, or increases the value of numeric items

3

OK button

● Saves the selected value for an item

● Performs the action that is highlighted on the control-panel display

● Clears an error condition when the condition is clearable

4

Down arrow

Navigates to the next item in the list, or decreases the value of numeric items

5

Back button

Backs up one level in the menu tree or backs up one numeric entry

6

Ready light

● On: The product is online and ready to accept data to print.

● Off: The product cannot accept data because it is offline (paused) or has

experienced an error.

● Blinking: The product is processing a job.

7

Cancel button

Cancels the current print job

8

Error light

● Off: The product is functioning without error.

● Blinking: Action is required. See the control-panel display.

22 Chapter 2 Control panel

ENWW

Main menus (Setup menu)

Reports

System setup

Service

Network config. (HP LaserJet P2055dn and HP LaserJet P2055x

only)

ENWW

Control panel (HP LaserJet P2050 Series Printers only) 23

Menu item

Description

Demo page

Prints a page that demonstrates print quality.

Menu structure

Prints a map of the control-panel-menu layout. Lists the active settings for each

menu.

Config report

Prints a list of all the product settings. Includes network information when the product

is connected to a network.

Supplies status

Prints the status for the print cartridge, including the following information:

●

Estimated pages remaining

●

Part number

● Number of pages printed

Network report

Prints a list of all product network settings

PCL font list

Prints a list of all the PCL 5c fonts that are installed

PCL 6 font list

Prints a list of all the PCL 6 fonts that are installed

PS font list

Prints a list of all the PostScript (PS) fonts that are installed

Service page

Prints the service report

Usage page

Prints a page that lists PCL 5c pages, PCL 6 pages, PS pages, pages that were

jammed or mispicked in the product; and reports the page count

24 Chapter 2 Control panel

ENWW

Menu item

Sub-menu item

Sub-menu item

Description

Language

Select the language for the control-panel

display messages and the product reports.

Quiet mode

On

Enable or disable quiet mode. When quiet

Off

mode is turned on, the product prints at a

slower speed. This setting is used for heavy

media.

The default setting is Off.

Paper setup

Def. paper size

A list of available sizes

Select the size for printing internal reports or

appears.

any print job that does not specify a size.

Def. paper type

A list of available media types

Select the media type for printing internal

appears.

reports or any print job that does not specify

a type.

Tray n

Paper type

Select the default size and type for the tray

NOTE: n = 1, 2, or 3

Paper size

from the list of available sizes and types.

Paper out action

Wait forever

Select how the product should react when a

Override

print job requires a size or type that is not

available or when a specified tray is empty.

Cancel

Select Wait forever to make the product wait

until you load the correct media and press

OK. This is the default setting.

Select Override to print on a different size or

type after a specified delay.

Select Cancel to automatically cancel the

print job after a specified delay.

If you select either Override or Cancel, the

control panel prompts you to specify the

number of seconds to delay. Press the up

arrow to increase the time, up to

3600 seconds. Press the down arrow to

decrease the time.

Print quality

Cartridge low

(1-20)

The percentage threshold determines when

the product begins reporting low toner.

Print density

(1–5)

Select the amount of toner to apply to thicken

edges and lines.

The default setting is 3.

ENWW

Control panel (HP LaserJet P2050 Series Printers only) 25

Menu item

Sub-menu item

Sub-menu item

Description

Display contrast

Medium

Adjust the contrast of the LCD.

Darker

Darkest

Lightest

Lighter

Courier font

Regular

Select a version of the Courier font.

Dark

The default is Regular.

26 Chapter 2 Control panel

ENWW

Menu item

Description

Cleaning mode

Use this option to clean the product if you see toner specks or other marks on the

printed output. The cleaning process removes dust and excess toner from the paper

path.

When you select this item, the product prompts you to load plain paper in Tray 1 and

then press OK to begin the cleaning process. Wait until the process is complete.

Discard the page that prints.

USB speed

Sets the USB speed to High or Full. For the product to actually operate at high

speed, it must have high speed enabled and be connected to an EHCI host controller

that is also operating at high speed. This menu item also does not reflect the current

operating speed of the product.

The default setting is High.

Less paper curl

If printed pages are consistently curled, use this option to set the product to a mode

that reduces curl.

The default setting is Off.

Archive print

If you are printing pages to be stored for a long time, use this option to set the product

to a mode that reduces toner smearing and dusting.

The default setting is Off.

Restore defaults

Sets all customized settings to the factory default values.

ENWW

Control panel (HP LaserJet P2050 Series Printers only) 27

Menu item

Description

CFG TCP/IP

Access the TCP/IP menu and set TCP/IP protocol parameters.

BOOTP=YES* Enable IPv4 configuration by a BOOTP Server.

DHCP=YES* Enable IPv4 configuration by a DHCP Server. (This item only displays on the control

panel when BOOTP=NO*.

If DHCP=YES* and the print server has a DHCP lease, you can configure the following DHCP

settings:

● RELEASE: Select whether to release (YES) or save (NO) the current lease.

● RENEW: Select whether to renew (YES or NO) the lease.

AUTO IP=YES* Automatically assign a link-local IPv4 address in the form 169.254.x.x.

To manually set an IP, specify BOOTP=NO*, DHCP=NO* and AUTO IP=NO*, and then set the

following TCP/IPv4 parameters from the control panel:

Each byte of the IPv4 address (IP)

Subnet Mask (SM)

Syslog Server (LG)

Default Gateway (GW)

Idle Timeout period (default is 270 seconds, 0 disables the timeout)

CFG DNS 1: IPv4 address of a primary DNS server (one byte at a time).

CFG DNS 2: IPv4 address of a secondary DNS server (one byte at a time).

IPV6 = YES*: Enable IPv6 operation. Select NO to disable IPv6 operation.

POLICY=RTR_AV/RTR_UN/ALWAYS: Set one of the following IPv6 addressing policies:

● RTR_AV: (default) Stateful auto-configuration method is determined by a router. The router

specifies whether the print server obtains its address, configuration information, or both from

a DHCPv6 server.

● RTR_UN: Try to obtain stateful configuration from a DHCPv6 server (when a router is not

available).

● ALWAYS: Always try to obtain stateful configuration from a DHCPv6 server (whether or not

a router is available).

MANUAL= KEEP/DISABLE: Set the behavior of a manually configured IPv6 address detected on

the print server.

● KEEP (default): Maintain the address in an active state.

● DISABLE: Maintain the address, but in an inactive state.

Print an HP Jetdirect configuration page to verify your settings. (The print server can overwrite

selected parameters with values that ensure proper operation.)

28 Chapter 2 Control panel

ENWW

Menu item

Description

WEB

Embedded Web server accepts communications using HTTPS (Secure HTTP) only, or both HTTP

and HTTPS.

● HTTPS: Accept only HTTPS (print server appears as a secure site).

● HTTP/HTTPS: Accept either HTTP or HTTPS.

SECURITY

Reset current security settings to factory defaults.

● KEEP (default): Retain current security settings.

● RESET: Reset security settings to factory defaults.

FIREWALL

Disable Firewall.

● KEEP (default): Retain Firewall operation as configured.

● DISABLE: Disable Firewall operation.

PRINT

Print a configuration page for the selected item.

SECURITY: Print the current security settings.

CFG LINK

Manually configure the HP Jetdirect print server’s network link.

Set the link speed and communication mode. These must match the network. The available

settings depend on the print server model.

CAUTION: Changing the link setting can cause the loss of network communication with the print

server.

● AUTO (default): Use auto negotiation to set the highest link speed and communication mode

allowed. If auto negotiation fails, either 100TX HALF or 10TX HALF is set depending on the

detected link speed of the hub/switch port. (A 1000T half-duplex selection is not supported.)

● 10T HALF: 10 Mbps, half-duplex operation.

● 10T FULL: 10 Mbps, Full-duplex operation.

● 100TX HALF: 100 Mbps, half-duplex operation.

● 100TX FULL: 100 Mbps, full-duplex operation.

● 100TX AUTO: Limits auto-negotiation to a maximum link speed of 100 Mbps.

● 1000TX FULL: 1000 Mbps, full-duplex operation.

ENWW

Control panel (HP LaserJet P2050 Series Printers only) 29

3

Paper out light: Indicates the printer is out of paper

4

Attention light: Indicates the print cartridge door is open or other errors exist

5

Ready light: Indicates the printer is ready to print

6

Go button and light

7

Cancel button: To cancel the print job currently printing, press the Cancel button.

30 Chapter 2 Control panel

ENWW

Size and dimensions

Tray 1

Tray 2

Optional 500-sheet

Duplexer

Tray 3

32 Chapter 3 Paper and print media

ENWW

Size and dimensions

Tray 1

Tray 2

Optional 500-sheet

Duplexer

Tray 3

Paper type (control panel)

Paper type (printer driver)

Tray 1

Tray 2

Optional 500Duplexer

sheet Tray 3

PLAIN 75–95 G

Plain

LIGHT 60-74 G

Light 60-74g

MID-WEIGHT

Mid-weight

HEAVY 111–130 G

Heavy 111–130g

EXTRA HEAVY 131–175 G

Extra heavy 131–175g

TRANSPARENCY

Monochrome Laser

Transparency

LABELS

Labels

LETTERHEAD

Letterhead

PREPRINTED

Preprinted

PREPUNCHED

Prepunched

COLOR

Colored

ROUGH

Rough

BOND

Bond

ENWW

Supported paper and print media 33

Paper type (control panel)

Paper type (printer driver)

Tray 1

Tray 2

Optional 500Duplexer

sheet Tray 3

RECYCLED

Recycled

ENVELOPE

Envelope

Tray or bin

Paper type

Specifications

Quantity

Tray 1

Paper

Range:

Maximum stack height: 5 mm

60 g/m2 (16 lb) bond to 200 g/m2

(0.3 inch)

Equivalent to 50 sheets of 75 g/

(54 lb) bond

m2 (20 lb) bond

Envelopes

Less than 60 g/m2 (16 lb) bond to

Up to 5 envelopes

90 g/m2 (24 lb) bond

Labels

Maximum 0.23 mm (0.009 inch)

Maximum stack height: 5 mm

thick

(0.3 inch)

Transparencies

Minimum 0.13 mm (0.005 inch)

Maximum stack height: 5 mm

thick

(0.3 inch)

Tray 2

Paper

Range:

Equivalent to 250 sheets of 75 g/

60 g/m2 (16 lb) bond to 135 g/m2

m2 (20 lb) bond

(36 lb) bond

Maximum stack height for A6

paper: 15 mm (0.59 inch)

Transparencies

Minimum 0.13 mm (0.005 inch)

Maximum stack height: 26 mm

thick

(1.0 inch)

Optional 500-sheet Tray 3

Paper

Range:

Equivalent to 500 sheets of 75 g/

60 g/m2 (16 lb) bond to 135 g/m2

m2 (20 lb) bond

(36 lb) bond

Maximum stack height for A6

paper: 40 mm (1.6 inches)

Transparencies

Minimum 0.13 mm (0.005 inch)

Maximum stack height: 54 mm

thick

(2.1 inches)

Standard top bin

Paper

Up to 125 sheets of 75 g/m2 (20

lb) bond

34 Chapter 3 Paper and print media

ENWW

Size and dimensions

Tray 1

Tray 2

ENWW

Supported paper and print media 35

Size and dimensions

Tray 1

Tray 2

Paper type (printer driver)

Tray 1

Tray 2

36 Chapter 3 Paper and print media

ENWW

Tray or bin

Paper type

Specifications

Quantity

Tray 1

Paper

Range:

Maximum stack height: 5 mm

60 g/m2 (16 lb) bond to 200 g/m2

(0.3 inch)

Equivalent to 50 sheets of 75 g/

(54 lb) bond

m2 (20 lb) bond

Envelopes

Less than 60 g/m2 (16 lb) bond to

Up to 5 envelopes

90 g/m2 (24 lb) bond

Labels

Maximum 0.23 mm (0.009 inch)

Maximum stack height: 5 mm

thick

(0.3 inch)

Transparencies

Minimum 0.13 mm (0.005 inch)

Maximum stack height: 5 mm

thick

(0.3 inch)

Tray 2

Paper

Range:

Equivalent to 250 sheets of 75 g/

60 g/m2 (16 lb) bond to 135 g/m2

m2 (20 lb) bond

Maximum stack height for A6

(36 lb) bond

paper: 15 mm (0.59 inch)

Transparencies

Minimum 0.13 mm (0.005 inch)

Maximum stack height: 26 mm

thick

(1.0 inch)

Standard top bin

Paper

Up to 125 sheets of 75 g/m2 (20

lb) bond

ENWW

Supported paper and print media 37

Tray

Single-sided printing

Duplex printing (HP LaserJet

Envelope printing

P2050 Series Printers only)

Tray 1

Face-up

Face-up

Front of envelope face-up

Top edge leading into the product

Top edge leading into the product

Short edge with postage leading

into the product

Tray 2

Face-down

Face-down

Use only Tray 1 for printing

Top edge at the front of the tray

Top edge at the front of the tray

envelopes.

Optional Tray 3 (HP LaserJet

Face-down

Face-down

Use only Tray 1 for printing

P2050 Series Printers only)

Top edge at the front of the tray

Top edge at the front of the tray

envelopes.

38 Chapter 3 Paper and print media

ENWW