Incoming fax text scrunched down to very short height or unreadable.

You can't do a reprint of the last fax it's not possible on any fax machine I'm aware of you'll need to contact whoever sent you the fax to resend

Change the tom/pulse mode.

Replace the drum and toner cartridge

Hi Debbie,

Open up the document feeder and clean the rollers and pad with alcohol.

you must have the reduction mode on in the fax section. This allows incoming faxes that are larger than the size paper you have available to be printed. You may have you paper set in a direction or size paper that is not the same as the fax being sent.

check the paper size settings, that it is set to the same size as the actual paper
~50% chance of being a solution, cant do better

YOU NEED TO REPLACE DRUM CARTRIDGE

here is the manual
http://www.retrevo.com/s/Canon+L80?rt=tr&p=http%3A%2F%2Fwww.usa.canon.com%2Fconsumer%2Fcontroller%3Fact%3DModelDetailAct%26fcategoryid%3D127%26modelid%3D9986

Generally, on most newer faxes, there should be a setting under the options or menu for settings. You are looking for the "distinctive ring mode'.

Change your incoming mode from "autoswitching" to "TAM" (TAM is short for telephone answering machine" Press the "Setup" button on the control panel Use down arrow twice to select "FAX SETTINGS" Press the right arrow once The FAX SETTINGS menu appears Press the down arrow twice to select RECEPTION SETTINGS Press the right arrow once Press the down arrow unit INCOMING MODE appears in display Press the right arrow once Press the down arrow until TAM appears in display Press the right arrow once. That should do it for you If I got lost somewhere, it is in your Operator's manual - look in the index for TAM Hope it helped Ed