Apple LaserWriter Printers Volume I - Revision history

Josh: Documentation page: per-tab contents with page numbers from the guide; intro facts (May 1991 original, Jan 1992 update); remove unsupported 'condenses LaserWriter II Service Source' claim; confirm second copy has identical text

2026-09-30T12:49:53Z

Documentation page: per-tab contents with page numbers from the guide; intro facts (May 1991 original, Jan 1992 update); remove unsupported 'condenses LaserWriter II Service Source' claim; confirm second copy has identical text

← Older revision		Revision as of 13:49, 30 September 2026
Line 1:		Line 1:
	The '''Apple Service Guide for LaserWriter Printers, Volume I''' is Apple's pocket on-site service guide for ~~its first two generations of laser printers:~~ the ~~'''~~LaserWriter and LaserWriter Plus, the LaserWriter II SC/NT/NTX/IIf/IIg, and the Personal LaserWriter SC/NT/LS~~'''~~. ~~Apple's~~ part number ~~is '''~~072-0631-B~~'''~~ and the running footer ~~throughout is~~ ''ASG-LaserWriter Printers Jan 92''.		The '''Apple Service Guide for LaserWriter Printers, Volume I''' is Apple's pocket on-site service guide for the LaserWriter and LaserWriter Plus, the LaserWriter II SC, NT, NTX, IIf and IIg, and the Personal LaserWriter SC, NT and LS. It is the January 1992 edition, part number 072-0631-B (printed on the back cover), and the running footer on every page reads ''ASG-LaserWriter Printers Jan 92''. The scan has 217 pages.

	~~Unlike~~ the '~~'Service Source'' volumes~~ it ~~condenses~~, the ~~Apple Service Guide was written to be carried to~~ a ~~customer site~~, and ~~each printer gets a short self-contained booklet with~~ the ~~same headings~~.		Apple's introduction describes the guide as the second in a series of booklets for technicians repairing Apple products at customers' sites. It takes information from the Technical Procedures and other service publications and condenses it into a 5½ by 8 inch spiral-bound booklet. The January 1992 update replaced the original May 1991 release, moved the on-site troubleshooting material into a new first tab, and added the LaserWriter IIf and IIg.

	== Contents ~~of each printer's booklet~~ ==		== Contents ==
	* Exploded View (p. 2)		An introductory section covers safety: the high-voltage, laser, fuser, ESD and lifting warnings, the LaserWriter Safety Rules, toner and laser safety, the laser warning labels, ESD prevention rules and setting up an ESD-safe workstation. Six tabs follow. Page numbering restarts in each tab, so a citation needs the tab as well as the page.
	* '''Parts List''' (pp. 3-4)
	* Major Assemblies (p. 5)
	* I/O Board Identification (p. 6)
	* Specifications (p. 7)
	* '''Status Lights''' (p. 8)
	* Test Prints (p. 9)
	* Troubleshooting (pp. 10-51)
	* LaserWriter ~~Plus ROM Upgrade (pp. 52~~-~~53)~~
	* '''Laser Power Adjustment''' (p. ~~54)~~
	* '''Image Skew Adjustment''' (pp. ~~55-56)~~
	* '''Preventive Maintenance''' (pp. 57-60)
	* '''Wiring Diagram''' (p. ~~61)~~

	~~Page numbering restarts within each booklet~~, ~~so cite~~ the ~~printer and the booklet~~ page ~~rather than a PDF page number.~~		{\| class="wikitable styled-table" style="width:100%; text-align:left;"
			\|+'''Tab contents, with the guide's own page numbers'''
	~~The guide also carries Apple's~~ on-site information-gathering checklist, ~~its safety~~ pages (~~high~~-~~voltage warning~~, ~~invisible~~ laser ~~radiation warning~~, ~~toner safety~~, ~~ESD rules~~) and ~~instructions for connecting~~ to a Macintosh and to an MS-DOS computer.		! Tab !! Contents
			\|-
			\| 1. On-Site Troubleshooting \|\| On-site troubleshooting (pp. 1-5), on-site troubleshooting flowcharts (pp. 6-7): quick checks, information gathering, software checklist
			\|-
			\| 2. LaserWriter/LaserWriter Plus \|\| Exploded view (2), parts list (3-4), major assemblies (5), I/O board identification (6), specifications (7), status lights (8), test prints (9), troubleshooting (10-51), LaserWriter Plus ROM upgrade (52-53), laser power adjustment (54), image skew adjustment (55-56), preventive maintenance (57-60), wiring diagram (61)
			\|-
			\| 3. LaserWriter II \|\| Exploded view (2-3), parts list (4-6), major assemblies (6-7), controller-I/O board identification (8-9), specifications (10-11), status LEDs (12), test pages (13), troubleshooting (14-54), laser power output check (55), NTX memory upgrade (56), NTX ROM upgrade (57), IIf and IIg memory upgrade (58), preventive maintenance (59-60), wiring diagram (61)
			\|-
			\| 4. Personal LaserWriter \|\| Exploded view (2-3), parts list (4-5), major assemblies (6-7), I/O board identification (8), specifications (9-10), status lights (11), test prints (12-13), troubleshooting (14-47), LS memory upgrade (48), registration adjustment (49-50), preventive maintenance (51-52), wiring diagrams (53-55)
			\|-
			\| 5. General Information \|\| Connecting a LaserWriter to a Macintosh (AppleTalk, SCSI or serial) and to an MS-DOS computer; adding hard disks to a LaserWriter II NTX
			\|-
			\| 6. Ports and Cables \|\| Cable connectors (1), table of peripheral cables (2), external connectors (3), connector pin-outs (4-8), switch configurations (9-11)
			\|}

	== What this guide does not contain ==		== What this guide does not contain ==
	Apple ~~says so itself, in the guide~~: ''"The following parts list is not comprehensive. Only selected service modules and replacement parts are listed. When ordering a replacement module or spare part, be sure to check the part number in the guide against the current price pages in the Apple Service Programs manual."'' ~~So the part numbers here are '''a selection, and possibly superseded'''. There is '''~~no ~~schematic~~ and no component~~-value list'''~~; the wiring ~~diagram shows interconnection~~ only~~. It is a condensation, and Apple states it does not replace the Apple Service Technical Procedures or ''Service Source''~~.		The parts lists are a selection. Each opens with Apple's note: ''"The following parts list is not comprehensive. Only selected service modules and replacement parts are listed. When ordering a replacement module or spare part, be sure to check the part number in the guide against the current price pages in the Apple Service Programs manual."'' The guide has no schematics and no component values; the wiring diagrams show connections between assemblies only.

	== ~~Three pages, one document~~ ==		== Other copies on the wiki ==
	~~This~~ wiki holds ~~'''~~three ~~separate pages for~~ this ~~one~~ guide~~'''~~, each ~~with~~ its own ~~scan~~:		The wiki holds three scans of this guide, each on its own page:
	* ~~this page~~ (217 pages);		* [[:File:Apple LaserWriter Printers Volume I.pdf]], embedded below (217 pages);
	* [[Apple Service Guide For Laserwriter Printers Volume I 072-0631-b 1992]] ~~- '''text-identical to this file'''~~, ~~a second scan of~~ the same ~~copy~~; and		* [[Apple Service Guide For Laserwriter Printers Volume I 072-0631-b 1992]], whose PDF has the same 217 pages and the same text layer as this one; and
	* [[Apple Service Guide Laserwriter Printers January 1992]] - a ~~third~~ scan~~, whose cover reads ''LaserWriter Printers Service Guide January 1992'' without the "Volume I" wording, but whose running footers and contents are~~ the same January 1992 guide.		* [[Apple Service Guide Laserwriter Printers January 1992]], a separate, larger scan of the same January 1992 guide.
	~~Treat~~ all three as one source~~. A figure appearing on all three is~~ not ~~corroborated; it is the same page scanned~~ three ~~times~~.		A figure found in all three comes from one source, not three.

	== Pages that cite this document ==		== Pages that cite this document ==
			* [[Apple LaserWriter]] and [[Apple LaserWriter Plus]] (tab 2)
			* [[Apple LaserWriter II NT]] and [[Apple LaserWriter II SC]] (tab 3)
	* [[Apple Personal LaserWriter 300]]		* [[Apple Personal LaserWriter 300]]
	* [[Apple LaserWriter]], [[Apple LaserWriter Plus]], [[Apple LaserWriter II NT]], [[Apple LaserWriter II SC]]
	* [[LaserWriter II Service Source]] - the full service manual this guide condenses.

	<pdf> File:Apple LaserWriter Printers Volume I.pdf </pdf>		<pdf> File:Apple LaserWriter Printers Volume I.pdf </pdf>

Josh: P4: turn document holder into a real documentation page (verification drive)

2026-09-25T06:43:31Z

P4: turn document holder into a real documentation page (verification drive)

@@ Line 1: / Line 1: @@
 <pdf> File:Apple LaserWriter Printers Volume I.pdf </pdf>
-Download the Apple LaserWriter Printers Volume I Service Manual Here: [[:File:Apple LaserWriter Printers Volume I.pdf|Apple LaserWriter Printers Volume I.pdf]]
+Download: [[:File:Apple LaserWriter Printers Volume I.pdf|Apple LaserWriter Printers Volume I.pdf]]
 [[Category:Service Manuals]]
 [[Category:Apple Vintage Computers]]
 [[Category:Apple Service Source]]

Josh: Created page with " File:Apple LaserWriter Printers Volume I.pdf Download the Apple LaserWriter Printers Volume I Service Manual Here: Apple LaserWriter Printers Volume I.pdf Category:Service Manuals Category:Apple Vintage Computers Category:Apple Service Source"

2025-04-08T22:56:58Z

Created page with "<pdf> File:Apple LaserWriter Printers Volume I.pdf </pdf> Download the Apple LaserWriter Printers Volume I Service Manual Here: Apple LaserWriter Printers Volume I.pdf Category:Service Manuals Category:Apple Vintage Computers Category:Apple Service Source"

New page

<pdf> File:Apple LaserWriter Printers Volume I.pdf </pdf>

Download the Apple LaserWriter Printers Volume I Service Manual Here: [[:File:Apple LaserWriter Printers Volume I.pdf|Apple LaserWriter Printers Volume I.pdf]]

[[Category:Service Manuals]]
[[Category:Apple Vintage Computers]]
[[Category:Apple Service Source]]