Editing Apple Personal LaserWriter 300

{{Infobox computer peripheral
| name         = Apple Personal LaserWriter 300
| image        = [[File:Personal_LaserWriter_300.jpg|250px]]
| caption      = Apple Personal LaserWriter 300 (1993)
| manufacturer = Apple Computer, Inc.
| type         = Laser printer
| release date = June 1, 1993
| discontinued = September 1, 1994
| price        = US$1,299 (1993 retail)
| interface    = RS-422 serial (Mini-DIN-8)
| compatible   = Macintosh with serial port
| dimensions   = 6.3" H × 15.2" W × 14.9" D
| weight       = 15.4 lbs (7 kg)
| power        = 360W maximum
| model        = M2001
}}

The '''Apple Personal LaserWriter 300''' was a compact monochrome laser printer released in June 1993 for the home office market. Model M2001 eliminated PostScript support and LocalTalk networking to achieve a retail price of US$1,299, relying instead on the host Macintosh's QuickDraw to rasterize pages. The printer utilized a Canon LBP-PX print engine capable of 4 pages per minute at 300 dpi with a rated life of 100,000 pages. Data transfer occurred via RS-422 serial connection at 57.6 kbps using Apple's proprietary compression algorithms. The printer included GrayShare software that enabled network sharing through a host Macintosh, though this required the host machine to remain powered on. Production ended in September 1994 when Apple introduced the 600 dpi LaserWriter 4/600 PS.

== Technical Specifications ==

=== Physical Specifications ===
* '''Dimensions:''' 6.3" H × 15.2" W × 14.9" D (160 × 386 × 378 mm)
* '''Weight:''' 15.4 lbs (7 kg)
* '''Operating temperature:''' 50°F to 90°F (10°C to 32°C)
* '''Humidity:''' 20% to 80% non-condensing
* '''Acoustic noise:''' 42 dBA operating, 35 dBA standby

=== Performance ===
* '''Print speed:''' 4 pages per minute maximum
* '''Resolution:''' 300 × 300 dpi
* '''First page out:''' Approximately 30 seconds
* '''Engine life:''' 100,000 pages rated
* '''Duty cycle:''' 2,000 pages per month recommended

=== Power Requirements ===
* '''Input voltage:''' 90-126V AC (North America), 220-240V AC (International)
* '''Frequency:''' 50-60 Hz
* '''Power consumption:''' 360W maximum, 120W average printing
* '''Standby power:''' 25W typical
* '''Auto power-save mode:''' Automatic after 15 minutes idle

== System Architecture ==

=== Controller Design ===

The Personal LaserWriter 300 employed an Application-Specific Integrated Circuit (ASIC) controller rather than a general-purpose microprocessor, significantly reducing costs compared to PostScript models.

'''Controller Specifications:'''
* '''Type:''' Custom Apple ASIC
* '''Function:''' Bitmap reception and decompression only
* '''Processing:''' No page description language interpretation
* '''Compression:''' Apple custom compression algorithms

'''Memory Configuration:'''
* '''Standard RAM:''' 512 KB physical
* '''Virtual buffer:''' 2 MB equivalent using compression
* '''Memory type:''' DRAM
* '''Expansion:''' None possible
* '''Frame buffer:''' Compressed bitmap storage

=== QuickDraw Printing Architecture ===

The Personal LaserWriter 300 relied entirely on the host Macintosh for page rendering:

'''Printing Process:'''
# Application sends QuickDraw commands to printer driver
# Driver renders page to bitmap on Macintosh
# Bitmap compressed using Apple algorithms
# Compressed data transmitted via serial port
# Printer decompresses and prints bitmap directly

'''Host Requirements:'''
* Macintosh performs all rasterization
* Requires significant CPU time during printing
* Memory intensive on host machine
* Background printing impacts system performance

=== Data Interface ===

'''Serial Specifications:'''
* '''Interface:''' RS-422 serial
* '''Connector:''' Mini-DIN-8 female
* '''Data rate:''' 57.6 kbps maximum
* '''Protocol:''' Apple proprietary compressed bitmap
* '''Flow control:''' Hardware handshaking
* '''Cable length:''' 6 feet standard, 25 feet maximum

The 57.6 kbps transfer rate was significantly slower than LocalTalk's 230.4 kbps, creating a bottleneck for complex pages with graphics or multiple fonts.

== Print Engine ==

=== Canon LBP-PX Engine ===

The Personal LaserWriter 300 utilized Canon's compact LBP-PX engine, shared with several HP LaserJet models:

'''Engine Specifications:'''
* '''Technology:''' Laser xerography
* '''Photosensitive drum:''' Organic photoconductor (OPC)
* '''Laser type:''' Semiconductor laser diode
* '''Developer system:''' Single-component magnetic toner
* '''Fusing:''' Heat roller with pressure roller
* '''Paper path:''' C-shaped path with manual feed option

'''Engine Components:'''
* '''Scanner unit:''' Rotating polygon mirror
* '''Transfer corona:''' Wire-type transfer system
* '''Fuser assembly:''' 180°C operating temperature
* '''Drum unit:''' Integrated with toner cartridge

=== Consumables ===

'''Toner Cartridge:'''
* '''Apple part number:''' M2037G/A
* '''Compatible cartridges:''' HP 92274A (HP 74A), Canon EP-L
* '''Yield:''' 3,350 pages at 5% coverage
* '''Drum life:''' Integrated drum replaced with cartridge
* '''Shelf life:''' 2 years unopened

The printer accepted HP LaserJet 4L/4ML cartridges, providing economical third-party options.

== Paper Handling ==

=== Input Capacity ===

'''Standard Paper Cassette:'''
* '''Capacity:''' 100 sheets of 20 lb bond paper
* '''Paper sizes:''' US Letter, A4, US Legal, Executive
* '''Paper weight:''' 16-28 lb bond (60-105 g/m²)
* '''Adjustment:''' Sliding backstop for different sizes

'''Manual Feed Slot:'''
* '''Capacity:''' Single sheet feed
* '''Media types:''' Plain paper, transparencies, envelopes, labels
* '''Envelope sizes:''' Com-10, Monarch, DL, C5
* '''Special media:''' Supports heavier stock up to 32 lb bond

=== Output Specifications ===
* '''Output tray:''' 50-sheet capacity face-down
* '''Stacking:''' Face-down, correct page order
* '''Overflow protection:''' Sensor stops printing at capacity

=== Media Specifications ===

{| class="wikitable" style="width:80%; text-align:center;"
|+'''Supported Paper Sizes'''
! Size !! Dimensions !! Printable Area
|-
| US Letter || 8.5 × 11 inches || 8.0 × 10.5 inches
|-
| US Legal || 8.5 × 14 inches || 8.0 × 13.5 inches
|-
| A4 || 210 × 297 mm || 200 × 287 mm
|-
| Executive || 7.25 × 10.5 inches || 6.75 × 10 inches
|}

== Software and Drivers ==

=== GrayShare Technology ===

GrayShare was Apple's software solution for sharing QuickDraw printers without hardware networking:

'''GrayShare Features:'''
* '''Network sharing:''' Printer appears on AppleTalk network
* '''Host control:''' Owner can enable/disable sharing
* '''Queue management:''' Basic print queue handling
* '''Grayscale printing:''' Enhanced halftoning for graphics
* '''Image scaling:''' Automatic page scaling options

'''GrayShare Limitations:'''
* Host Mac must remain powered on
* Host performance impacted during printing
* No PostScript support
* Limited to Mac OS 9 and earlier
* Not compatible with Mac OS X

=== Driver Requirements ===

'''System Requirements:'''
* '''Minimum OS:''' System 6.0.7
* '''Recommended:''' System 7.0 or later
* '''RAM:''' 1 MB minimum, 4 MB recommended
* '''Hard disk:''' Required for virtual memory
* '''Driver:''' LaserWriter 300 Chooser extension

'''Font Support:'''
* '''System 6:''' Requires Adobe Type Manager for scalable fonts
* '''System 7+:''' Native TrueType support
* '''Bitmap fonts:''' Scaled by host, quality varies
* '''PostScript fonts:''' Not supported

=== Included Fonts ===

The Personal LaserWriter 300 shipped with 39 TrueType fonts from the following families:
* Avant Garde
* Bookman
* Chicago
* Courier
* Geneva
* Helvetica
* Helvetica Narrow
* Monaco
* New Century Schoolbook
* New York
* Palatino
* Symbol
* Times
* Zapf Chancery
* Zapf Dingbats

== Diagnostic Features ==

=== Status Indicators ===

The Personal LaserWriter 300 used three LED indicators on the front panel:

{| class="wikitable" style="width:85%; text-align:center;"
|+'''LED Status Indicators'''
! LED !! Color !! Status !! Meaning
|-
| Ready || Green || Solid || Ready to print
|-
| Ready || Green || Blinking || Processing data
|-
| Paper Out || Amber || Solid || Paper cassette empty
|-
| Paper Out || Amber || Blinking || Manual feed required
|-
| Error || Red || Solid || Service required
|-
| Error || Red || Blinking || Paper jam or door open
|}

=== Self-Test Mode ===

Unlike the Personal LaserWriter 320, the 300 lacked Power-On Self Test (POST) capability and diagnostic mode. Testing required:
* Print test page from Chooser
* Visual inspection of print quality
* Manual verification of mechanical operation

=== Common Error States ===
* '''No lights:''' Power supply failure or unplugged
* '''All lights on:''' Controller failure
* '''Continuous red blinking:''' Print engine problem
* '''Amber and red alternating:''' Communication error

== Personal LaserWriter 300 Troubleshooting ==

=== M2001 LED Error Codes ===

The Personal LaserWriter 300 uses three front-panel LEDs without the diagnostic capabilities of the 320 model. Understanding the specific patterns is critical for troubleshooting.

{| class="wikitable" style="width:95%; text-align:center;"
|+'''Personal LaserWriter 300 LED Patterns'''
! Ready (Green) !! Paper Out (Amber) !! Paper Jam (Red) !! Condition !! Action Required
|-
| Solid || Off || Off || Normal ready state || None - printer operational
|-
| Blinking || Off || Off || Processing QuickDraw data || Wait - normal operation
|-
| Off || Solid || Off || Cassette empty || Load 100-sheet cassette
|-
| Off || Blinking || Off || Manual feed waiting || Insert single sheet
|-
| Off || Off || Solid || Paper jam detected || Clear jam, check sensors
|-
| Off || Solid || Solid || Jam with empty cassette || Load paper and clear jam
|-
| All blinking || colspan="2" | Sequential pattern || ASIC controller failure || Replace controller board
|-
| All off || colspan="2" | No lights || No power to controller || Check 360W power supply
|}

'''Note:''' Unlike the 320 model, the 300 lacks POST (Power-On Self Test) and cannot enter diagnostic mode with a loopback cable.

=== Canon LBP-PX Engine Specific Issues ===

The Personal LaserWriter 300's Canon LBP-PX engine has unique characteristics compared to the LBP-LX used in the LS model:

{| class="wikitable" style="width:95%; text-align:center;"
|+'''LBP-PX Engine Troubleshooting'''
! Problem !! LBP-PX Specific Cause !! Test Method !! Solution
|-
| Light print at 4 ppm || Insufficient fuser dwell time || Print single pages slowly || Allow warm-up between pages
|-
| Toner smearing || Lower fuser temperature (180°C) || Test with HP 74A cartridge || Use genuine toner only
|-
| Paper curl || Compact C-shaped paper path || Try different paper weights || Use 20 lb paper
|-
| Envelope wrinkling || Fixed fuser pressure || Manual feed one at a time || Pre-crease envelopes
|-
| First page light || 30-second warm-up time || Wait before printing || Normal for LBP-PX
|-
| 100K page limit || Smaller drum diameter || Check page counter || Plan replacement at 90K
|}

=== Personal LaserWriter 300 Paper Sensors ===

The M2001 uses three specific sensors in the Canon LBP-PX engine:

'''PS302 - Registration Sensor:'''
* '''Location:''' Entry to print engine after pickup roller
* '''Function:''' Detects manual feed presence and pickup timing
* '''Failure mode:''' Constant manual feed prompt
* '''Test:''' Insert paper slowly, listen for click
* '''Cleaning:''' Cotton swab with 99% isopropyl alcohol

'''PS303 - Winding Sensor:'''
* '''Location:''' Between drum unit and fuser entry
* '''Function:''' Monitors paper transfer from drum
* '''Timing:''' 2.5 seconds from PS302 activation
* '''Failure mode:''' False jam after drum
* '''Test:''' Check actuator flag movement

'''PS301 - Delivery Sensor:'''
* '''Location:''' Fuser exit before output tray
* '''Function:''' Confirms successful fusing
* '''Timing:''' 4 seconds from print start
* '''Failure mode:''' Jam indication after printing
* '''Service:''' Clean sensor window and flag

=== QuickDraw-Specific Print Problems ===

Since the Personal LaserWriter 300 relies entirely on QuickDraw rendering:

{| class="wikitable" style="width:95%; text-align:center;"
|+'''QuickDraw Printing Issues'''
! Symptom !! Host Mac Issue !! 300-Specific Cause !! Resolution
|-
| Garbled output || Insufficient host RAM || 512KB buffer overflow || Add RAM to Mac (4MB min)
|-
| Slow printing || Complex graphics || 57.6 kbps bottleneck || Simplify documents
|-
| Missing fonts || No ATM/TrueType || Bitmap scaling only || Install System 7 or ATM
|-
| Partial pages || Serial buffer overflow || ASIC can't decompress fast || Reduce resolution in driver
|-
| White pages || Driver not loaded || LaserWriter 300 extension missing || Reinstall from original disk
|-
| Timeout errors || Background printing || GrayShare conflict || Disable background printing
|}

=== RS-422 Serial Communication Faults ===

The Personal LaserWriter 300's 57.6 kbps serial connection has specific failure points:

'''Mini-DIN-8 Pinout (M2001 Specific):'''
* Pin 1: HSK Out (Hardware handshake)
* Pin 2: HSK In (Required for 300)
* Pin 3: TxD- (Transmit data minus)
* Pin 4: Ground
* Pin 5: RxD- (Receive data minus)
* Pin 6: TxD+ (Transmit data plus)
* Pin 7: Not connected (unlike 320)
* Pin 8: RxD+ (Receive data plus)

'''Common Serial Failures:'''
* '''No communication:''' Check pins 3,6 (TxD) and 5,8 (RxD)
* '''Prints garbage:''' Verify 57.6 kbps setting in driver
* '''Stops mid-page:''' Hardware handshake failure (pins 1,2)
* '''Random characters:''' Cable exceeds 25 feet limit

== Personal LaserWriter 300 Maintenance Procedures ==

=== M2001 Controller Board Maintenance ===

The Personal LaserWriter 300 uses a custom ASIC controller without a microprocessor:

'''ASIC Controller Service:'''
# '''Visual inspection:'''
## Check for bulging capacitors (only 3 electrolytics)
## Look for burnt components near power input
## Verify ribbon cable connections
## Check for corrosion on edge connector

# '''Capacitor locations (M2001 board):'''
## C1: 47µF 16V near power input
## C2: 100µF 10V near ASIC
## C3: 47µF 16V near serial connector

# '''Cleaning procedure:'''
## Remove board from printer
## Clean edge connector with pencil eraser
## Apply DeoxIT to serial port pins
## Blow out dust with compressed air

# '''Compression chip verification:'''
## ASIC marked "Apple 343S0140" or similar
## No field repair possible
## Failure requires board replacement
=== Canon LBP-PX Fuser Maintenance ===

The Personal LaserWriter 300's fuser operates at lower temperature than other models:

'''LBP-PX Fuser Specifications:'''
* '''Operating temp:''' 180°C (356°F) vs 200°C in other models
* '''Warm-up time:''' 30 seconds from cold
* '''Power consumption:''' 280W during fusing
* '''Roller diameter:''' 20mm (smaller than LBP-LX)

'''Fuser Service Procedure:'''

# '''Accessing the fuser:'''
## Remote plastic facade (4 screws under the toner cover), pull the plastic cover forward and up at the corners.
## Remove two screws at rear panel
## Pull straight back (not up)

# '''Upper roller inspection:'''
## Should be light tan color
## No black streaks or gouges
## Slight texture acceptable
## Replace if shiny/glazed

# '''Lower roller check:'''
## Red silicone rubber
## Must spring back when pressed
## No flat spots or cuts
## Clean with alcohol only

# '''Thermistor cleaning:'''
## Small white component touching upper roller
## Clean with cotton swab
## Use 99% isopropyl alcohol

# '''Exit roller service:'''
## Two small rubber rollers
## Check "fingers" for wear
## Common failure at 75,000 pages
## Can trim worn fingers as temporary fix
=== Personal LaserWriter 300 Pickup Assembly ===

The compact LBP-PX design has a unique pickup mechanism:

'''Pickup Roller Specifications:'''
* '''Part number:''' FB1-8581-000 (Canon)
* '''Diameter:''' 28mm
* '''Material:''' Gray rubber compound
* '''Life expectancy:''' 30,000 pages
* '''Rotation:''' Clockwise viewing from left

'''Removal Procedure (300 Specific):'''
# Open front cover fully
# Remove 100-sheet cassette
# Locate white plastic clips on roller shaft
# Push left clip inward while lifting
# Slide roller left off D-shaped shaft
# Note orientation for reinstallation

'''Pickup Roller Restoration:'''
# Clean with water-dampened cloth
# If glazed: Sand lightly with 400-grit
# Apply rubber rejuvenator sparingly
# Test grip with plain paper
# Should pull single sheet reliably

'''Separation Pad (300/LBP-PX):'''
* '''Location:''' Inside cassette tray
* '''Type:''' Cork-rubber composite
* '''Spring tension:''' 180g force
* '''Replacement interval:''' 40,000 pages

=== GrayShare Software Maintenance ===

The Personal LaserWriter 300's GrayShare has specific requirements:

'''GrayShare File Locations:'''
* '''Extension:''' System Folder:Extensions:LaserWriter 300
* '''Preferences:''' System Folder:Preferences:LW300 Prefs
* '''Spool folder:''' System Folder:PrintMonitor Documents

'''Common GrayShare Issues:'''

# '''Printer not shared on network:'''
## Verify "Share this Printer" checked in Chooser
## Check AppleTalk is active
## Confirm host Mac not sleeping
## Restart with extensions loaded

# '''Corrupted spool files:'''
## Delete PrintMonitor Documents folder
## Recreate empty folder
## Reset PrintMonitor preferences
## Limit spool to 10 documents

# '''Memory errors during sharing:'''
## Host needs 4MB RAM minimum
## Assign 2MB to PrintMonitor
## Disable virtual memory
## Close unnecessary applications

# '''Serial port conflicts:'''
## Check no other serial drivers loaded
## Verify modem not using port
## Disable AppleTalk on modem port
## Use printer port only
=== 100-Sheet Cassette Maintenance ===

The Personal LaserWriter 300's compact cassette requires specific care:

'''Cassette Components:'''
* '''Capacity:''' 100 sheets (half of Select 300)
* '''Corner separators:''' Plastic tabs (wear points)
* '''Lift plate''' Spring-loaded metal
* '''Size guides''' Letter, Legal, A4, Executive

'''Cassette Service Procedure:'''

# '''Lift plate spring'''
## Check spring tension
## Should lift paper firmly
## Oil pivots with light machine oil
## Replace spring if stretched

# '''Corner separator cleaning'''
## Remove any paper dust buildup
## Check for worn or broken tabs
## Sand smooth if roughened
## Critical for preventing multi-feeds

# '''Size adjustment mechanism'''
## Slide backstop to click positions
## Verify positive engagement
## Clean slider tracks
## Lubricate with silicone spray

# '''Paper guide alignment'''
## Guides must be perpendicular
## Check for warping or damage
## Adjust screws if loose
## Replace cassette if bent
=== Canon LBP-PX Drum Unit Care ===

The integrated drum/toner design requires specific handling:

'''HP 74A/Canon EP-L Compatible Cartridge'''
* '''Drum diameter''' 24mm OPC
* '''Rotation''' 4 rotations per page
* '''Cleaning blade''' Polyurethane
* '''Waste capacity''' 250 pages

'''Drum Maintenance Steps'''

# '''Monthly inspection'''
## Open toner shutter carefully
## Look for scratches or spots
## Check cleaning blade edge
## Inspect charge roller surface

# '''Corona wire equivalent'''
## 300 uses charge roller not wire
## Clean roller with dry cloth only
## Never use liquids
## Replace cartridge if damaged

# '''Toner distribution'''
## Rock cartridge 5-6 times
## Side to side, not shaking
## Prevents streaking
## Extends cartridge life

# '''Waste toner'''
## No user service possible
## Fills at 7.5% coverage rate
## Replace when print fades
## Don't attempt to empty
=== Environmental Adjustments for 300 ===

The Personal LaserWriter 300's lower power design requires environmental consideration:

'''Operating Environment'''
* '''Temperature''' 65-80°F optimal (struggles below 60°F)
* '''Humidity''' 40-55% (narrower than 320)
* '''Altitude''' Sea level to 6,500 feet
* '''Power''' Dedicated outlet recommended

'''Seasonal Adjustments'''

'''Winter issues'''
* First page very light: Normal, allow warm-up
* Paper curl increases: Store paper inside
* Toner clumping: Keep cartridges warm
* Static problems: Increase humidity

'''Summer issues'''
* Paper jams increase: Check humidity
* Toner smearing: Reduce paper moisture
* Fuser life decreases: Ensure ventilation
* Component expansion: Allow cooling periods

=== Personal LaserWriter 300 Page Count Tracking ===

Without internal page counter, track maintenance manually:

'''Page Count Method'''
# Create log sheet near printer
# Record date and starting count
# Note toner cartridge changes (3,350 pages)
# Calculate from toner usage
# Estimate 15 cartridges = 50,000 pages

'''Maintenance Schedule (Page-Based)'''
* '''3,000''' Clean paper path
* '''6,000''' Clean pickup roller
* '''10,000''' Service cassette
* '''20,000''' Clean all sensors
* '''30,000''' Replace pickup roller
* '''40,000''' Replace separation pad
* '''50,000''' Recap controller board
* '''75,000''' Fuser service required
* '''90,000''' Evaluate replacement
* '''100,000''' End of rated life

=== Tools Specific to Personal LaserWriter 300 ===

'''Essential Service Tools'''
* '''Serial loopback''' Not used (300 lacks diagnostics)
* '''Multimeter''' Test 360W supply voltages
* '''Cotton swabs''' Long-stem for sensors
* '''Plastic spudgers''' For roller clips
* '''Vacuum''' Toner-rated only
* '''Compressed air''' Oil-free, 30 PSI max

'''300-Specific Supplies'''
* '''Toner''' HP 74A or Canon EP-L
* '''Pickup roller''' FB1-8581-000
* '''Separation pad''' FB1-8639-000
* '''Capacitors''' 47µF 16V (×2), 100µF 10V (×1)
* '''Serial cable''' 6-foot Mini-DIN-8
* '''Cleaning supplies''' 99% isopropyl alcohol

== Comparison with Related Models ==

{| class="wikitable" style="width:95%; text-align:center;"
|+'''Personal LaserWriter Comparison'''
! Feature !! PLW 300 !! PLW 320 !! PLW LS !! Select 300
|-
| Engine || Canon LBP-PX || Canon LBP-PX || Canon LBP-LX || Fuji Xerox P
|-
| Speed || 4 ppm || 4 ppm || 4 ppm || 5 ppm
|-
| PostScript || No || Yes (Level 2) || No || No
|-
| Processor || ASIC only || AMD 29205 16 MHz || None || None
|-
| RAM || 512 KB || 2-8 MB || 512 KB || 512 KB
|-
| Interface || RS-422 || RS-422 || RS-422 || RS-422
|-
| LocalTalk || No || Yes || No || No
|-
| GrayShare || Yes || No || Yes || Yes
|-
| Weight || 15.4 lbs || 15.4 lbs || 31 lbs || 28 lbs
|-
| Power || 360W || 120W || 600W || 450W
|}

== Accessories and Options ==

=== Available Accessories ===
* '''Toner cartridges:''' M2037G/A (Apple), 92274A (HP)
* '''Serial cables:''' 6-foot and 25-foot lengths
* '''Manual feed guides:''' For envelope printing
* '''Corona wire cleaner:''' Included with toner

=== Third-Party Solutions ===
* '''USB adapters:''' Keyspan USB Serial Adapter (limited compatibility)
* '''Network bridges:''' Not compatible with LocalTalk bridges
* '''Toner refills:''' Available from various suppliers

== Production Information ==

=== Manufacturing Details ===
* '''Production period:''' June 1993 - September 1994
* '''Estimated production:''' 75,000-100,000 units
* '''Manufacturing locations:''' Singapore, Japan
* '''OEM partners:''' Canon (print engine)

=== Model Identification ===
* '''Model number:''' M2001
* '''Family number:''' LaserWriter
* '''Product codes:''' M2001LL/A (US), M2001B/A (International)

== Compatibility ==

=== System Requirements ===
* '''Any Macintosh with:'''
** RS-422 serial port (Mini-DIN-8)
** System 6.0.7 or later
** 1 MB RAM minimum
** Hard disk drive

=== Compatible Macintosh Models ===
* Macintosh Plus through Power Macintosh G3
* PowerBook models with serial ports
* Performa series
* LC series
* Quadra series

=== Operating System Support ===
* '''System 6.0.7-6.0.8:''' Basic support
* '''System 7.0-7.6:''' Full TrueType support
* '''Mac OS 8-9:''' Full compatibility
* '''Mac OS X:''' Not supported

== Legacy and Market Position ==

The Personal LaserWriter 300 occupied a challenging position in Apple's printer lineup. Released simultaneously with the LaserWriter Select 300, the two models created market confusion with overlapping specifications and capabilities. The Select 300 offered faster printing at 5 pages per minute using a Fuji Xerox engine, while the Personal LaserWriter 300 provided a more compact design with lower power consumption.

The elimination of PostScript and LocalTalk kept costs low but limited the printer's appeal to professional users who required these features. The reliance on QuickDraw printing meant slower performance for complex documents and complete dependence on the host Macintosh's processing power.

Despite limitations, the Personal LaserWriter 300 served the home office market adequately, providing laser print quality at a price point competitive with high-end inkjet printers of the era. The printer's compatibility with HP toner cartridges ensured economical operation, while GrayShare software provided basic network functionality for small workgroups.

== See Also ==
* [[Personal LaserWriter 320]]
* [[Personal LaserWriter LS]]
* [[LaserWriter Select 300]]
* [[LaserWriter 4/600 PS]]

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[[Category:Apple Vintage Accessories]]