Справочник Пользователя для HP color laserjet 4500

EN

Overhead transparency defects 185

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If the transparency colors are dull or dark, ensure the transparencies 
meet the specifications for this printer (part number C2934A for 
letter, and C2936A for A4).

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The selected colors are undesirable when printed. Select different 
colors in your software application or printer driver.

•

Spots and smudges appear in the background areas of 
transparencies when they are projected. Oil from your hands can 
cause spots or smudges on transparencies. Reprint, being careful 
not to touch the surface of the transparencies.

•

You are using a reflective overhead projector. Use a standard 
overhead projector. 

This might occur even though the correct media is loaded in the correct 
tray. Toner might not adhere to the media and an image might show up 
on pages where it isn’t meant to appear. (See “Full page ghosting” on 
page 177.) 

When this occurs on transparencies, the connections for the ITB 
cleaning roller (clutch 3) and for the secondary transfer roller (clutch 4) 
might be reversed.

Overhead transparencies that have repetitive defects spaced 131 mm 
(5.2 in) apart indicate a defect on the upper fuser roller. 

1 Turn the printer off and unplug the printer, allow 30 minutes for the 

fuser to cool, and remove the fuser.

Make sure to allow 30 minutes before removing the fuser. The fuser 
will be hot.

2 Turn the fuser gears and inspect the surface of the upper fusing 

roller. If the roller has surface defects (gouges), replace the fusing 
assembly.