Apple LaserWriter Printers Volume I
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.
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
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.
| 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
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.
Other copies on the wiki
The wiki holds three scans of this guide, each on its own page:
- File:Apple LaserWriter Printers Volume I.pdf, embedded below (217 pages);
- 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 separate, larger scan of the same January 1992 guide.
A figure found in all three comes from one source, not three.
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
Download: Apple LaserWriter Printers Volume I.pdf