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The touch screen could have lost its calibration, but there is a good chance that it is bad, and needs to be replaced. To calibrate it, push the yellow clear modes key, then the numbers 1, 9, 9, 3, then push the red "Clear / Stop" key 5 times, and choose number one. Follow the prompts. Use a stylus or other dull pointed item. If you don't get a response, you need a new touch screen.
Which model of Ricoh are we talking about here? If touch screen is not responding before replacement, re-calibrate touch screen or replace it. I can help you with the calibration code if you require. If the touch screen is not responding after replacement, check whether the replacement lcd display panel was installed reverse as the connectors will not have contact.
1. Place letter- or A4-size paper in tray 1, and adjust the side guides. 2. On the control-panel Home screen, scroll to and touch Administration. 3. Touch Troubleshooting. 4. Touch Calibrate Scanner. 5. Touch Calibrate to print the first pass of the calibration target(Print out). 6. Place the first pass of the calibration target face-down in tray 1 so that the arrows are facing into the MFP. 7. Touch Start to print the second pass. 8. Place the calibration target face-up into the ADF, and adjust the side guides. 9. After the calibration target has passed through the ADF once, reposition it face down in the ADF and touch Start. 10. Place the calibration target face-down on the scanner glass, touch Start, and scan the page. After this pass, the calibration is complete. Calibration will fails if print quality is not good...ensure that print quality must be in order.. Once calibration successfully done, restart printer several times & verify start button light, if its green every time 'u' re success. if not cleaning required for CCD which is major work & not suggestable..
Press and hold down energy saver button and function button together then power on the machine. keep on holding the two buttons the machine will once show screen calibration marker then again show the calibration markers now touch the shown marker it will go to a new place keep on touching the final marker will be at center of screen . after touching it the calibration completes
You need to calibrate the touch screen.
Press Yellow key
On the key pad Press 1-9-9-3.
Press 5 times the red key (the 5th old a little longer)
(If everything is good in the touch screen shows an option "calibrate touch screen")
Try to touch there and will show a little arrow on each corner. With a pen click there to calibrate the touch screen.
Click exit and its done
Press the yellow clear modes button then press
1 9 9 3 and the red clear/stop botton 5 times
this will open up the touch screen calibration menu
select calibrate touch screen. follow on screen directions.
turn of the printer. Hold the C and # buttons and turn on the printer. When the screen goes black it will be ready to be re calibrated. there is a white dot, touch it with a pen, another white dot appears, touch it with a pen. It will continue to turn on now with a newly calibrated screen.