HP Laserjet 5 User Manual

							
8Press[Item] until either PS MEM=400K orPCL MEM=400K appears, then
press [- Value +] until the number you determined in Step 6 appears.
Press [Select] to save your selection. An asterisk ( *) appears next to
your selection in the display.
9Press [Go]to exit menus.
10Repeat Step 5.
NoteYou must download all fonts again because all downloaded resources
are deleted when you change the Resource Saving setting. The
downloaded fonts remain in memory until you change Resource Saving
or I/O Buffering settings or turn the printer off.
How I/O Buffering Improves Performance
The printer ’s I/O Buffer holds a print job in progress, freeing up
computer memory. This allows the user to continue operating the
computer without waiting for the print job to finish. When additional
memory is added to the printer 100 KBytes are automatically reserved
for the I/O Buffer for each MByte of memory added.
In most cases, it is to your advantage to let the printer automatically
reserve memory for I/O Buffering.  Network administrators might want
to increase I/O Buffering to speed network printing.  See “Memory
Configuration Menu” in Chapter 3 for information about changing this
setting.
NoteWhen you change the I/O BUFFERsetting, all downloaded resources
will need to be downloaded again.
D
Printer Memory
D
Printer Memory
ENPrinter Memory D-5 
						

							
SIMM Board Installation
The HP LaserJet 5 printer has four SIMM (Single In-line Memory Module)
slots. The HP LaserJet 5M printer has three available SIMM slots (the
fourth is used for the PostScript SIMM). Use the SIMM slots to install
additional printer memory and printer languages (such as the Adobe
PostScript language). For the HP LaserJet 5 printer, you can add up to 64
MBytes of memory (4 MBytes are standard). For the HP LaserJet 5M, you
can add up to 40 MBytes of memory (6 MBytes are standard).
NoteUse only memory and PostScript language SIMMs designed for the HP
LaserJet 5 and 5M printers.  Match the SIMM you are installing with
part numbers in the table below.
Memory SIMM Part Numbers
Compare the part number on the outside of the package to the part
number in the table below. If you did not purchase the correct SIMM,
contact your authorized Hewlett-Packard dealer for the appropriate part.
Part Number Size (MB)C3130A 1
C3131A 2
C3132A 4
C3133A 8
C3134A 16
D-6 Printer MemoryEN 
						

							
Installing SIMMs
Caution
SIMM boards can be damaged by small
amounts of static electricity. Wear an
antistatic wrist strap (or frequently touch the
surface of the antistatic package or bare
metal on the printer) when handling the
board, and before installing or removing it.
1Before you begin these steps, turn the
printer off and unplug the power cord.
2Rotate the printer so that you have
easy access to the right and back sides
of the printer.
3Loosen the captive screw in the upper
left corner of the back panel with a
Phillips #2 screwdriver.  The screw
does not need to be completely
removed from the printer.
4Slide the right side panel towards the
back of the printer (approximately an
inch (25 mm)).
5The panel should now easily open,
exposing the SIMM door.
Continued on next page
D
Printer Memory
D
Printer Memory
ENPrinter Memory D-7 
						

							
6Loosen the captive screw holding the
SIMM door with a Phillips #2
screwdriver. Open the SIMM door.
7Note the four SIMM slots (a PostScript
SIMM will already be installed in a slot
in the HP LaserJet 5M). For easiest
installation, fill the slots fromright to
left , starting with slot 1 (see inset).
8Remove the SIMM board from the
antistatic package. Hold the board with
your forefingers on the side edges and
your thumbs against the back edge.
Hold the board so the notch on one end
is on the bottomand the metal teeth
face toward the SIMM slot.
9Hold the SIMM board at a 30-degree
angle to the slot and push the edge of
the board evenly and firmly into the
slot (see A).  Rotate the SIMM board
to the right until the board “clicks”
into the metal locking tabs, securing
the board in place (see B).
Close the SIMM door and tighten the
screw (see picture 6).
Set the bottom of the right side panel onto the
printer. Make sure the three bottom tabs on
the panel align with the corresponding slots
on the printer. Fold the cover up. The printer
is now in the same condition as picture 4.
10Slide the panel to the left until it
becomes firm (1/4 inch gap (7 mm)
remaining). Tighten the screw in the
upper left corner on the back panel.
This will close the remaining gap
between the panel and the frame.
Continued on the next page
D-8 Printer MemoryEN 
						

							
CautionIt is important to correctly align the right side panel and tighten the screw
on the back panel before attempting to move the printer.
Testing a SIMM Board
Use the procedures below to print a self test to verify SIMM board
installation.  Procedures are given for both memory and PostScript
SIMMs.
Memory SIMM: running a self test printout
1Plug in the power cord and switch the printer on.
2After warm up,RE\fDYshould appear in the control panel display. If
a printer message appears, see “Troubleshooting a SIMM Board” on
the following page.
3Press [Menu] untilTEST MENU appears in the display.
4Press[Item] untilPRINT SELF TEST appears in the display.
5Press[Select] to print a self test.
6Press[Go]to exit menus.
Locate “RAM SIZE” on the self-test printout (see “Understanding the
Self Test Printout” in Chapter 7 for more information). This is the
amount of memory now installed in your printer.
If the amount of memory has not increased since installing the SIMM, it
may not be installed correctly (repeat installation procedure) or the
SIMM may be defective (see “Troubleshooting a SIMM Board” on the
following page).
D
Printer Memory
ENPrinter Memory D-9 
						

							
PostScript SIMM
Use these instructions to verify your PostScript SIMM installation:
1Plug in the power cord and turn the printer on.
2After warm upRE\fDYshould appear in the control panel display.  If a
printer message appears, see “Troubleshooting a SIMM Board” next
in this appendix.
3Press [Menu] untilPS MENU appears in the display. If this message
appears, your printer recognizes that the PostScript language is installed.
If PS MENU does not appear, check the SIMM installation.
4Press[Go]to exit menus.
Troubleshooting a SIMM Board
Service / Error Messages
These messages can be generated when your printer is checking its
internal memory. (For more information on the messages below, see
Chapter 7, “Solving Printer Problems.”)
Error ProblemSolution
62.x ERROR
where x = 0, 1,
2, 3, or 4. This error indicates your printer identified a
problem while checking memory.
If x = 0, the problem is in internal Read Only
Memory (ROM). If x = 1, 2, 3, or 4, the problem
is in SIMM slot 1, 2, 3, or 4. See the checking
procedure for 62.x ERROR described on the
next page.
63 NEEDS SERVICE The printer found a problem in its internal RAM
memory. Switch your printer OFF, then ON, to clear the
error. If the message reappears, call your
authorized HP dealer or service representative.
D-10 Printer MemoryEN 
						

							
Checking Procedure
To check memory for the62.x ERRORmessage, follow the procedure
below:
1Switch the printer off, then back on ( data will be lost).
2If the error message appears again, switch your printer off and verify
that the SIMM board is installed correctly, then switch your printer
on.
3If the error message appears again, switch printer off, remove the
SIMM board(s) or cartridge, then switch printer back on.
4If the error message appears again, the problem is in printer memory.
If the error message does not appear, the problem is in SIMM
memory.  Call your HP service representative.
Validation Error Messages
Validation error messages appear when a SIMM fails to be initialized
when the printer is turned on.  This error is in the format 53.XY.ZZ
ERROR .
X (Hardware Type) Y (Hardware Device) ZZ (Error Number)
0: ROM
1: RAM
2: Flash 0: Internal Memory
1: SIMM Slot 1
2: SIMM Slot 2
3: SIMM Slot 3
4: SIMM Slot 4 0: Unsupported memory
1: Unrecognized memory
2: Unsupported memory size
3: Failed RAM test
4: Exceeded maximum RAM size
5: Exceeded maximum ROM size
6: Invalid SIMM speed
7: SIMM reporting information incorrectly
8: SIMM RAM parity error
10: SIMM address conflict
11: ROM out of bounds
12: Could not make temporary mapping
Although these errors can be ignored, the SIMM that caused the error
will not be configured. You can still print if the SIMM has more than
one bank of memory.
D
Printer Memory
D
Printer Memory
ENPrinter Memory D-11 
						

							
D-12 Printer MemoryEN 
						

							
E
Serial Pin-out and Cabling Configuration
Serial Communication
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.
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 in which a bit is added to keep the number of bits in a
character even or odd depending upon whether or not even or odd parity is used.
HP LaserJet Serial
Data Format Transmission is asynchronous, with one start bit, eight data bits and one stop bit. Parity is not
used. HP LaserJets are DTE devices.
Serial Interface
Protocol
(handshaking) Handshaking is the method in 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 which 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.
Hardware Flow
Control (hardware
handshaking) By definition hardware handshaking is performed when two programs manipulate RS-232 control
pins-DTR, DSR, RTS, and CTS to achieve a hardware-based form of flow control. In DTR/DSR
handshaking, the sender asserts DTR (Data Terminal Ready) before sending the first character in
a stream of data and waits for DSR (Data Set Ready) to be asserted in return. RTS/CTS
handshaking is similar, but uses the Request To Send and Clear To Send pins rather than Data
Terminal Ready. In either case, the sender delays transmitting data until the receiver is ready.
ENSerial Pin-out and Cabling Configuration E-1 
						

							
Hewlett-Packard offers the following serial cables and adapter for use
with the HP 5/5M Printers:
With the C2809A serial cable adapter installed on the printer you can
connect a 25-pin cable connector to the printer. The adapter pin
connections are shown below.
25 to 9 pin adapter (C2809A)
DB-9 Serial Cable pin outs
HP Part Number Description
C2932A 9 to 9-pin M/F RS-232 Serial Cable, 3m
C2933A 9 to 25-pin M/F RS-232 Serial Cable, 3m
C2809A 9 to 25-pin M/F Serial Cable Adapter
Standard DB-25
(female adapter end) Printer DB-9
(male adapter end)
2- Transmit Data 2- Transmit Data
3- Receive Data 3- Receive Data
6- Data Set Ready 4- Data Set Ready
7- Signal Ground 5- Signal Ground
20- Data Terminal Ready 6- Data Terminal Ready
Computer DB-9 Printer DB-9 (male cable end)
2- Receive Data 2- Transmit Data
3- Transmit Data 3- Receive Data
4- Data Terminal Ready 4- Data Set Ready
5- Ground 5- Ground
6- Data Set Ready 6- Data Terminal Ready
8- Clear to Send 8- Data Terminal Ready
E-2 Serial Pin-out and Cabling ConfigurationEN