im writing my thesis in latex and i have a litte problem. How can i also print the header on pages that starts with a chapter heading? On those pages it is missing.

here is a small example of my settings:

    \documentclass[12pt,oneside,a4paper, headings=small]{scrbook}
\usepackage[top=25mm, bottom=20mm,left=40mm,right=20mm]{geometry}
\usepackage{scrhack}
\usepackage{blindtext}
\automark{chapter}
\ifoot*{}
\cfoot[\thepage]{}

%Überschriften Apa-konform
\setcounter{secnumdepth}{-1}

\renewcommand\raggedchapter{\centering}

\RedeclareSectionCommand[
beforeskip=.25\baselineskip,
afterskip=1sp plus -1sp minus 1sp
]{chapter}

\RedeclareSectionCommand[
beforeskip=3.5ex plus 1ex minus .2ex,
afterskip=1sp plus -1sp minus 1sp
]{section}

\RedeclareSectionCommands[
afterskip=-1em,
indent=2em
]{subsection,subsubsection,paragraph}

\renewcommand{\sectioncatchphraseformat}[4]{%
\hskip #2#3#4.%
}

\setkomafont{subsection}{\normalsize}
\setkomafont{subsubsection}{\normalsize\itshape}
\setkomafont{paragraph}{\normalsize\mdseries\itshape}

\cfoot*{}
\ofoot*{}

\begin{document}
\chapter{Einleitung}
\blindtext \newpage
\blindtext
\end{document}


thank you very much derlu

• Hello! When you ask questions here, it's really helpful (and would probably get you an answer faster) if you provide a complete and self contained example. It means that if we can copy paste the code, it would run and your problem would reveal it self! i.e. it should include a \documentclass, \begin{document} and \end{document}. This way we can just copy/paste the code and go straight into solving the problem without resorting to wild guesses about what you really are asking. – Andreas Storvik Strauman Sep 6 '18 at 11:54
• the most of document class which enables division document on chapters deliberately remove headers and footers on chapter first page. you can add them by redesign chapter style. this depends on used document class. since this not known yet, we cant help you. if you use "template" (document class) provided by your university, than don't change desired thesis layout! – Zarko Sep 6 '18 at 11:59
• This is considered very bad typographical practice. – Bernard Sep 6 '18 at 12:38
• I updated my question. Sorry – derlu Sep 6 '18 at 13:37

By default chapter pages get pagestyle plain. With a KOMA-Script class you can change this behavior:

\renewcommand*\chapterpagestyle{scrheadings}


Example:

\documentclass[12pt,oneside,a4paper, headings=small]{scrbook}
\usepackage[top=25mm, bottom=20mm,left=40mm,right=20mm]{geometry}
\usepackage{scrhack}
\usepackage{blindtext}% only for dummy text

\automark{chapter}
\clearpairofpagestyles
\setkomafont{pagenumber}{}

%Überschriften Apa-konform
\setcounter{secnumdepth}{-1}

\renewcommand\raggedchapter{\centering}

\RedeclareSectionCommand[
beforeskip=.25\baselineskip,
afterskip=1sp plus -1sp minus 1sp
]{chapter}

\RedeclareSectionCommand[
beforeskip=3.5ex plus 1ex minus .2ex,
afterskip=1sp plus -1sp minus 1sp
]{section}

\RedeclareSectionCommands[
afterskip=-1em,
indent=2em
]{subsection,subsubsection,paragraph}

\renewcommand{\sectioncatchphraseformat}[4]{%
\hskip #2#3#4.%
}

\setkomafont{subsection}{\normalsize}
\setkomafont{subsubsection}{\normalsize\itshape}
\setkomafont{paragraph}{\normalsize\mdseries\itshape}

\begin{document}
\chapter{Einleitung}
\Blindtext
\end{document}


Result:

Or you can use the starred versions of \ihead and \ohead to get the same entries for pagestyle plain. Then you have to activate the headsepline on plain pages using option plainheadsepline:

\usepackage[headsepline,plainheadsepline]{scrlayer-scrpage}% activates pagestyle scrheadings automatically
\automark{chapter}
\clearpairofpagestyles
\setkomafont{pagenumber}{}


Example:

\documentclass[12pt,oneside,a4paper, headings=small]{scrbook}
\usepackage[top=25mm, bottom=20mm,left=40mm,right=20mm]{geometry}
\usepackage{scrhack}
\usepackage{blindtext}% only for dummy text

\automark{chapter}
\clearpairofpagestyles
\setkomafont{pagenumber}{}

%Überschriften Apa-konform
\setcounter{secnumdepth}{-1}

\renewcommand\raggedchapter{\centering}

\RedeclareSectionCommand[
beforeskip=.25\baselineskip,
afterskip=1sp plus -1sp minus 1sp
]{chapter}

\RedeclareSectionCommand[
beforeskip=3.5ex plus 1ex minus .2ex,
afterskip=1sp plus -1sp minus 1sp
]{section}

\RedeclareSectionCommands[
afterskip=-1em,
indent=2em
]{subsection,subsubsection,paragraph}

\renewcommand{\sectioncatchphraseformat}[4]{%
\hskip #2#3#4.%
}