diff --git a/crates/printer/src/operation_type_printer/type_printer.rs b/crates/printer/src/operation_type_printer/type_printer.rs
index 399aba0..0b8537e 100644
--- a/crates/printer/src/operation_type_printer/type_printer.rs
+++ b/crates/printer/src/operation_type_printer/type_printer.rs
@@ -9,14 +9,13 @@ use itertools::{Either, Itertools};
 use nitrogql_ast::{
     base::Pos,
     directive::Directive,
-    operation::{FragmentDefinition, OperationDocument},
+    operation::FragmentDefinition,
     selection_set::{Selection, SelectionSet},
     value::Value,
     variable::VariablesDefinition,
 };
 use nitrogql_config_file::TypeTarget;
 use nitrogql_semantics::direct_fields_of_output_type;
-use sourcemap_writer::SourceMapWriter;
 
 use super::{
     super::ts_types::{ts_types_util::ts_intersection, TSType},
@@ -33,18 +32,9 @@ use super::{
 pub struct QueryTypePrinterContext<'a, 'src, S: Text<'src>> {
     pub options: &'a OperationTypePrinterOptions,
     pub schema: &'a Schema<S, Pos>,
-    pub operation: &'a OperationDocument<'src>,
     pub fragment_definitions: &'a HashMap<&'src str, &'a FragmentDefinition<'src>>,
 }
 
-pub trait TypePrinter<'src, S: Text<'src>> {
-    fn print_type(
-        &self,
-        options: &QueryTypePrinterContext<'_, 'src, S>,
-        writer: &mut impl SourceMapWriter,
-    );
-}
-
 pub fn get_type_for_selection_set<'src, S: Text<'src>>(
     context: &QueryTypePrinterContext<'_, 'src, S>,
     selection_set: &SelectionSet<'src>,
diff --git a/crates/printer/src/operation_type_printer/visitor.rs b/crates/printer/src/operation_type_printer/visitor.rs
index 0c325f2..d9313cc 100644
--- a/crates/printer/src/operation_type_printer/visitor.rs
+++ b/crates/printer/src/operation_type_printer/visitor.rs
@@ -115,7 +115,6 @@ where
             .collect();
         let context = OperationTypePrinterContext {
             schema,
-            operation,
             fragment_definitions,
         };
         Self { options, context }
@@ -124,7 +123,6 @@ where
 
 pub struct OperationTypePrinterContext<'a, 'src, S: Text<'src>> {
     pub schema: &'a Schema<S, Pos>,
-    pub operation: &'a OperationDocument<'src>,
     pub fragment_definitions: HashMap<&'src str, &'a FragmentDefinition<'src>>,
 }
 
@@ -167,7 +165,6 @@ impl OperationPrinterVisitor for OperationTypePrinterVisitor<'_, '_> {
         let type_printer_context = QueryTypePrinterContext {
             options: &self.options,
             schema: self.context.schema,
-            operation: self.context.operation,
             fragment_definitions: &self.context.fragment_definitions,
         };
 
@@ -267,7 +264,6 @@ impl OperationPrinterVisitor for OperationTypePrinterVisitor<'_, '_> {
         let type_printer_context = QueryTypePrinterContext {
             options: &self.options,
             schema: self.context.schema,
-            operation: self.context.operation,
             fragment_definitions: &self.context.fragment_definitions,
         };
 
diff --git a/crates/printer/src/schema_type_printer/context.rs b/crates/printer/src/schema_type_printer/context.rs
index b8c64f5..6c93075 100644
--- a/crates/printer/src/schema_type_printer/context.rs
+++ b/crates/printer/src/schema_type_printer/context.rs
@@ -15,7 +15,6 @@ use crate::SchemaTypePrinterOptions;
 
 pub struct SchemaTypePrinterContext<'src> {
     pub options: &'src SchemaTypePrinterOptions,
-    pub document: &'src TypeSystemDocument<'src>,
     pub schema: &'src Schema<Cow<'src, str>, Pos>,
     // Mapping from Scalar name to TypeScript types.
     pub scalar_types: HashMap<String, ScalarTypeConfig>,
@@ -36,7 +35,6 @@ impl SchemaTypePrinterContext<'_> {
         let local_type_names = make_local_type_names(document, &scalar_types);
         SchemaTypePrinterContext {
             options,
-            document,
             schema,
             scalar_types,
             local_type_names,