وقتی لباسشویی کار میکند، من معمولا در اتاقم درس میخوانم.

وقتی means when and introduces a time clause.

So:

• وقتی لباسشویی کار می‌کند = when the washing machine is working/running
• من معمولا در اتاقم درس می‌خوانم = I usually study in my room

A very common pattern in Persian is:

• وقتی + clause, clause
• When + clause, clause

So وقتی is functioning much like English when here.

Literally, کار کردن means to work. But in Persian, just like in English, work can also mean function, operate, or run for a machine.

So for a machine:

• لباسشویی کار می‌کند = the washing machine is working
• more naturally in English: the washing machine is running

This is a very normal Persian way to talk about appliances and machines.

Examples:

• تلویزیون کار نمی‌کند = The TV isn’t working
• کولر کار می‌کند = The air conditioner is running / working

Here, لباسشویی means washing machine.

It is built from words related to clothes and washing, and in everyday Persian it commonly refers to the appliance.

Depending on context, forms related to لباسشویی can also connect with the idea of laundry, but in this sentence, because it is the thing that کار می‌کند, the meaning is clearly washing machine.

Persian normally does not use a separate word like English the.

So:

• لباسشویی can mean a washing machine or the washing machine
• اتاقم means my room
• درس می‌خوانم means I study / am studying

Whether something is a or the is usually understood from context.

That is very normal in Persian, and learners often need time to get used to not seeing articles spelled out.

Yes, من could be omitted.

Persian verbs already show the subject through their endings:

• می‌خوانم = I read/study
• the -م ending already tells you it is I

So both of these are natural:

• من معمولا در اتاقم درس می‌خوانم
• معمولا در اتاقم درس می‌خوانم

The pronoun من is often added for:

• emphasis
• clarity
• contrast

So in this sentence, من is not required, but it is perfectly natural.

معمولا means usually, and Persian adverbs are fairly flexible in position.

In this sentence:

• من معمولا در اتاقم درس می‌خوانم

This is a very natural placement.

You may also hear:

• معمولا من در اتاقم درس می‌خوانم
• من در اتاقم معمولا درس می‌خوانم

But the version in your sentence is probably the most neutral and common.

So yes, معمولا can move, but some positions sound smoother or more standard than others.

در means in.

So:

• در اتاقم = in my room

Persian often uses در just like English uses in.

Breakdown:

• اتاق = room
• اتاقم = my room
• در اتاقم = in my room

Sometimes in informal speech, Persian may omit certain prepositions in places where English would keep them, but with location, در is very common and straightforward.

Persian often adds possessive endings directly to nouns.

So:

• اتاق = room
• اتاقم = my room

The ending -م means my.

Other common endings are:

• اتاقت = your room
• اتاقش = his/her room
• اتاقمان = our room
• اتاقتان = your room
• اتاقشان = their room

This is one of the most useful patterns in Persian.

You can compare:

• اتاق من = my room
• اتاقم = my room

Both are possible, but the attached form is very common and natural.

Yes, literally it is something like I read lessons, but in Persian this expression means to study.

This is a very common Persian idiom:

• درس خواندن = to study

So:

• درس می‌خوانم = I study / I am studying

This is one of those cases where a literal word-for-word translation can sound strange in English, but the whole expression has a natural meaning in Persian.

Related examples:

• او دارد درس می‌خواند = He/She is studying
• باید درس بخوانم = I must study

Both are in the present imperfective form, which is commonly used for:

• habitual actions
• general truths
• present ongoing actions, depending on context

In this sentence, the meaning is habitual:

• وقتی لباسشویی کار می‌کند = when the washing machine runs / is running
• من معمولا ... درس می‌خوانم = I usually study ...

Because of معمولا (usually), the sentence is clearly about a repeated habit, not just one specific moment.

Formally, the verbs are:

• کار می‌کند = he/she/it works
• درس می‌خوانم = I study

The prefix می‌ is a key marker here.

They show the subject.

In this sentence:

• می‌کند ends in -د, which here corresponds to he/she/it
• می‌خوانم ends in -م, which corresponds to I

So:

• لباسشویی کار می‌کند = the washing machine works / runs
• درس می‌خوانم = I study

This is why Persian often does not need separate subject pronouns.

A few common present-tense endings are:

• -م = I
• -ی = you (singular)
• -د = he/she/it
• -یم = we
• -ید = you (plural/formal)
• -ند = they

Yes, the order can be reversed.

Your sentence is:

• وقتی لباسشویی کار می‌کند، من معمولا در اتاقم درس می‌خوانم.

A reversed version would also be natural:

• من معمولا در اتاقم درس می‌خوانم وقتی لباسشویی کار می‌کند.

But Persian, like English, often prefers the when-clause first when setting the time background.

So the original order sounds very natural:

• When the washing machine is running, I usually study in my room.

You are right. The more standard spelling is:

• می‌کند
• می‌خوانم

Persian often uses a half-space after می:

• می‌ + کند
• می‌ + خوانم

However, in informal typing, many people write:

• میکند
• میخوانم

So the sentence you saw is understandable and common in casual writing, but in careful standard Persian, می‌کند and می‌خوانم are preferred.

Most naturally, it describes a habit.

The clue is معمولا = usually.

So the overall sense is:

• Whenever/when the washing machine is running, I usually study in my room.

Without معمولا, the sentence could more easily be interpreted as something happening right now, depending on context. But with معمولا, it clearly sounds habitual and repeated.