Trying to change a fax number in memory

What you are looking for is the Ring Count Delay.

Unfortunately it looks as though this is not an option for this unit.
Here is the manual for the MP C4501.
http://support.ricoh.com/bb_v1oi/html/oi/re/model/mpc41/mpc41en.htm

If you need a service manual.
https://www.service-manual.net/?download=53457-ricoh-aficio-mpc4501-aficio-mpc5501-series-service-manual

The fax user manual for the 450 is no longer available from Ricoh, so I can't check for sure, but the basic procedure is to press the User Tools button, go into Fax Features, and under one of the tabs will be a box where you can change the fax header information.

Hope that helps!

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1. Press the [F2] key. “ this key is located on the left side of the Control Panel next to the key [12] from the left side and next to the [Memory Trans.] key from the rigt side ”
2. Press the left arrow key to select the reception mode “ this key is located under the Display of the Control Panel”
3. Press the [OK] key when on the display is displayed the mode you want.
note:as you sad you want the machine to reaceive faxes when you are out of the office, so the reception mode [Auto Select] is the most compaible mode for you.
The machine can treat incoming fax
messages and telephone calls in three
ways.
1.Manual Receive
- Use this mode if your line is shared
by a fax machine and a telephone
but you wish to answer all calls
yourself and decide whether they
are fax documents or telephone
calls. You must manually press the
[Start] key to receive a fax.
The machine will ring continuously
until you answer the call, so you
have to be near the machine at all
times. The Manual Receive indicator
is lit when the machine is in this
mode.
2. Auto Receive
- Use this mode if you have a dedicated
fax line. The machine assumes
all calls are fax documents.
It will ring once to alert you of an
incoming call, and then starts receiving.
3. Auto Select
- In this mode, the machine rings a
number of times. You can answer
the call while the machine is ringing.
If you do not answer the call,
the machine automatically changes
to receive fax messages.

It's in the USER TOOLS menu.

Using "on hook" you should hear a dial tone, if you have one then dial a known good fax number. It could also be in manual receive mode. -Carl

Can't be done..this fax can only operate on a dedicated line, and it picks up right away. Sorry.

i am typing the number into the fax machine, pressing go then it says it shows it is dialing that number, then when it actually going through the sending process it displays someone elses number. i get a report that it has gone to the number i want however one page goes through as two! help

you can get the manual here: - LINK

Basically you plug your phone line into the fax machine line in and set the ring pick up to the desired length.

When someone calls you the fax should pick up and take the data.

http://www.ricoh-usa.com/downloads/manuals.asp?tsn=Ricoh-USA

This is the link for the manuals
Scroll down to Facsimile
From the Drop Down Menu, choose your machine and click GO
It will take you to the manual (PDF format)

I hope this will help you.

i think you are in manual mode.. try searching for an auto mode, or a big button to receive faxes.. ... in manual mode, the guy should usually ask (in a call) you to give you feed so you give him line by pressing some big button.. and you also need to always have paper.. otherwise it wont be done