---
title: "Newsletter Exchange: Correction — System Variable 23661 Is Used"
type: "article"
slug: "newsletter-exchange-correction-system-variable-23661-is-used"
url: "http://localhost/article/newsletter-exchange-correction-system-variable-23661-is-used/"
markdown_url: "http://localhost/article/newsletter-exchange-correction-system-variable-23661-is-used.md"
published_at: "2026-03-14T12:41:13+00:00"
modified_at: "2026-03-14T12:41:14+00:00"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "Correction to TS2068 user manual page 264: location 23661 is incorrectly listed as Not used. It is the MSB of the FRAMES counter and should not be POKEd with anything other than 0 while the printer is in use. A safer address for printer use is 23670."
category:
  - name: "Timelinez"
    slug: "timelinez"
    taxonomy: "category"
    url: "http://localhost/category/periodicals/timelinez/"
post_tag:
  - name: "BASIC (programming language)"
    slug: "basic-programming-language"
    taxonomy: "post_tag"
    url: "http://localhost/tag/basic-programming-language/"
  - name: "TS 2068"
    slug: "ts2068"
    taxonomy: "post_tag"
    url: "http://localhost/tag/ts2068/"
model:
  - name: "Timex/Sinclair 2068"
    slug: "ts-2068"
    taxonomy: "model"
    url: "http://localhost/model/ts-2068/"
indiv:
  - name: "H. Edward Weppler"
    slug: "h-e-weppler"
    taxonomy: "indiv"
    url: "http://localhost/indiv/h-e-weppler/"
publication_r:
  id: 21571
  title: "Timelinez"
  type: "periodical"
  url: "http://localhost/periodical/timelinez/"
authors_r:
  - name: "H. Edward Weppler"
    slug: "h-e-weppler"
    taxonomy: "indiv"
    url: "http://localhost/indiv/h-e-weppler/"
volume: "3"
issue: "12"
issues_articles:
  - id: 65873
    title: "Timelinez v3 n12"
    type: "issue"
    url: "http://localhost/issue/timelinez-v3-n12/"
pages: "4"
pubdate: "December 1985"
archive_link: false
---

# Newsletter Exchange: Correction — System Variable 23661 Is Used

Correction to TS2068 user manual page 264: location 23661 is incorrectly listed as Not used. It is the MSB of the FRAMES counter and should not be POKEd with anything other than 0 while the printer is in use. A safer address for printer use is 23670.