A kaafir works with him in a printing press that produces Mushafs

No File Exists
Check below answers in case you are looking for other related questions:
Ruling on kissing the Mus-haf
Carrying the Qur’aan to the bathroom so that it will not be stolen

No File Exists
Related Answers:
Can we read from a Mushaf that becomes contaminated with najaasah and is then cleaned?
Reciting Qur’aan in the bathroom
Giving the kuffaar a translation of the meanings of the Qur'aan
Ruling on kissing the Mus-haf
Carrying the Qur’aan to the bathroom so that it will not be stolen

Recommended answers for you:
Dealing with a Bad Temper
Inserting fingers into the back passage
Ruling on drinking beer
The soul of the deceased does not come back to his family or his house
What are the limits within which parents may interfere in their son’s marriage? Is he sinning if he goes against their wishes?