Commodore MPS-802 (1526) Dot Matrix Printer for C64 / VIC-20

PEEK inside the MPS-802: the most misunderstood dot matrix printer for the Commodore 64! Today we'll rebuild one and talk all about it, including tips for general maintenance, and a test print.

N.B.- Also marketed as the Commodore 1526 for the VIC-20 with cosmetic differences -- and ALSO as the Commodore 4023 with a parallel IEEE-488 interface instead of the familiar IEC serial.

CHAPTERS-
0:00 - Intro
4:11 - Background
10:56 - Sidebar: Jan Beta's MPS-801
11:55 - Bottom Case
14:51 - Power Supply & Safety
16:34 - Mainboard & ICs
26:58 - Mechanical & Maintenance
37:06 - Completing Assembly
38:49 - Ribbon Cartridges
44:37 - Load & Test Print

LINKS-

MPS-802 Dot Matrix Printer - User's Guide
- https://archive.org/details/MPS-802DotMatrixPrinterUsersGuide

1526 / MPS 802 / 4023 Service Manual
- https://archive.org/details/1526MPS-8024023ServiceManual314003-031985Apr

MPS series - C64-Wiki
- https://www.c64-wiki.com/wiki/MPS_series

Printer Book for the Commodore-64 (Abacus Software)
- https://archive.org/details/Printer_Book_for_the_Commodore_64_and_VIC-20/

1526/MPS-802 Parts & Ribbons (Zimmers)
- http://www.zimmers.net/anonftp/pub/cbm/firmware/printers/1526/README

Rubber Renue (MG Chemicals)
- https://www.mgchemicals.com/products/electronics-maintenance/specialized-cleaners/rubber-renue/

MOLYKOTE EM-30L Grease
- https://www.dupont.com/products/molykote-em-30l-grease.html

Jan Beta's Commodore MPS-801 Printer Restoration
- https://www.youtube.com/watch?v=IkPEbDQ_Xkc

#Commodore #MPS802 #Printer #1526 #DotMatrix #Commodore64 #C64 #VIC20