diff --git a/src/printer/prt_escp.c b/src/printer/prt_escp.c
index 41c81e696..1855df380 100644
--- a/src/printer/prt_escp.c
+++ b/src/printer/prt_escp.c
@@ -1906,6 +1906,13 @@ strobe(uint8_t old, uint8_t val, void *priv)
         /* Process incoming character. */
         handle_char(dev, dev->data);
 
+        if (timer_is_enabled(&dev->timeout_timer)) {
+            timer_disable(&dev->timeout_timer);
+#ifdef USE_DYNAREC
+            if (cpu_use_dynarec)
+                update_tsc();
+#endif
+        }
         /* ACK it, will be read on next READ STATUS. */
         dev->ack = 1;
         timer_set_delay_u64(&dev->pulse_timer, ISACONST);
@@ -1940,6 +1947,13 @@ write_ctrl(uint8_t val, void *priv)
         /* Process incoming character. */
         handle_char(dev, dev->data);
 
+        if (timer_is_enabled(&dev->timeout_timer)) {
+            timer_disable(&dev->timeout_timer);
+#ifdef USE_DYNAREC
+            if (cpu_use_dynarec)
+                update_tsc();
+#endif
+        }
         /* ACK it, will be read on next READ STATUS. */
         dev->ack = 1;
         timer_set_delay_u64(&dev->pulse_timer, ISACONST);
diff --git a/src/printer/prt_ps.c b/src/printer/prt_ps.c
index 904ff34ad..b8f3b20b9 100644
--- a/src/printer/prt_ps.c
+++ b/src/printer/prt_ps.c
@@ -34,6 +34,7 @@
 #include <86box/plat_dynld.h>
 #include <86box/ui.h>
 #include <86box/prt_devs.h>
+#include "cpu.h"
 
 #ifdef _WIN32
 #    define GSDLLAPI __stdcall
@@ -341,6 +342,14 @@ ps_strobe(uint8_t old, uint8_t val, void *priv)
     if (!(val & 0x01) && (old & 0x01)) {
         process_data(dev);
 
+        if (timer_is_enabled(&dev->timeout_timer)) {
+            timer_disable(&dev->timeout_timer);
+#ifdef USE_DYNAREC
+            if (cpu_use_dynarec)
+                update_tsc();
+#endif
+        }
+
         dev->ack = true;
 
         timer_set_delay_u64(&dev->pulse_timer, ISACONST);
@@ -371,6 +380,14 @@ ps_write_ctrl(uint8_t val, void *priv)
     if (!(val & 0x01) && (dev->ctrl & 0x01)) {
         process_data(dev);
 
+        if (timer_is_enabled(&dev->timeout_timer)) {
+            timer_disable(&dev->timeout_timer);
+#ifdef USE_DYNAREC
+            if (cpu_use_dynarec)
+                update_tsc();
+#endif
+        }
+
         dev->ack = true;
 
         timer_set_delay_u64(&dev->pulse_timer, ISACONST);
diff --git a/src/printer/prt_text.c b/src/printer/prt_text.c
index 7604d023e..3acccf830 100644
--- a/src/printer/prt_text.c
+++ b/src/printer/prt_text.c
@@ -63,6 +63,7 @@
 #include <86box/lpt.h>
 #include <86box/printer.h>
 #include <86box/prt_devs.h>
+#include "cpu.h"
 
 #define FULL_PAGE 1 /* set if no top/bot margins */
 
@@ -391,6 +392,14 @@ strobe(uint8_t old, uint8_t val, void *priv)
         /* Process incoming character. */
         handle_char(dev);
 
+        if (timer_is_enabled(&dev->timeout_timer)) {
+            timer_disable(&dev->timeout_timer);
+#ifdef USE_DYNAREC
+            if (cpu_use_dynarec)
+                update_tsc();
+#endif
+        }
+
         /* ACK it, will be read on next READ STATUS. */
         dev->ack = 1;
 
@@ -429,6 +438,14 @@ write_ctrl(uint8_t val, void *priv)
         /* ACK it, will be read on next READ STATUS. */
         dev->ack = 1;
 
+        if (timer_is_enabled(&dev->timeout_timer)) {
+            timer_disable(&dev->timeout_timer);
+#ifdef USE_DYNAREC
+            if (cpu_use_dynarec)
+                update_tsc();
+#endif
+        }
+
         timer_set_delay_u64(&dev->pulse_timer, ISACONST);
         timer_set_delay_u64(&dev->timeout_timer, 5000000 * TIMER_USEC);
     }