What kind of reading is required for my job?

Working in fast food there is not much reading involved however there are small bits here and there. Where i work my boss instead of staying all day and night leaves notes everywhere saying what she would like done or adress a problem that has been bothering her and she wants fixed. If we get a new piece of equipment we have to read the owners manual for operation and maintenence/cleaning. I often find my self putting up the latest sales etc. on the reader board. the only other reading task i have is reading orders correctly, although ther brief and abbreviated.