Ricoh Aficio SP 3400SF User Guide - Page 297

Print Quality Problems Print Quality Problems This section describes likely causes of and possible solutions for problems with print quality. Checking the Condition of the Machine If there is a problem with the quality of printing, first check the condition of the machine. Possible Cause Solution There is a problem with the ma- Make sure that the machine is on a level surface. Place the chine's location. machine where it will not be subject to vibration or shock. Unsupported types of paper is Make sure that the paper being used is supported by the ma- used. chine. See p.56 "Supported Paper for Each Tray". The paper type setting is incorrect. Make sure that the paper type setting of the printer driver matches the type of paper loaded. See p.81 "Specifying Paper Type and Paper Size". A non-genuine print cartridge is Refilled or non-genuine print cartridges reduce print quality being used. and can cause malfunctions. Use genuine print cartridges only. See p.321 "Consumables". An old print cartridge is being Print cartridges should be opened before their expiration used. date and used within six months of being opened. The machine is dirty. See p.313 "Cleaning", and clean the machine as required. Humidity level surrounding the Using the machine in a room where humidity level is too machine may be too low. low may cause black lines of a few millimeters thick appear- ing on printouts with 75-millimeter spaces in between. Se- lecting [On] for [Low Humidity Mode] under [Machine Settings] may help to prevent these lines from appearing. See p.218 9 "Machine Settings". 287