1. Open the Zoho Desk Android app.
2. Go to the ticket.
3. Tap More Options  in the conversation thread.
4. Select either Reply or Reply all from the options.
5. Compose your reply.
6. Tap the Dropdown arrow  next to Send.
7. Choose Scheduled Reply.
8. Select a predefined time, or specify a Custom Duration, or enter a Specific Date and Time. 
9. Tap Schedule to schedule your reply. Alternatively, tap Schedule and Close to both schedule the reply and close the ticket.

Actions from the scheduled replies   

Edit reply

1. Navigate to the scheduled reply.
2. Tap the More  icon  
3. Select Print. 
4. Connect to the required printer, fix the layout, and mention the number of copies needed.
5. Click Print.