HP LaserJet Enterprise MFP M637 User Guide - Page 48
Customer self-repair parts, Mandatory, Optional
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Factors that can reduce life from the conditions above: ● Media narrower than Letter/A4 widths (thermal slow downs equal more rotations) ● Paper heavier than 75 g/m2 (20 lb) (heavier media creates higher stress on printer components) ● Print jobs smaller than 4 images (smaller jobs mean more thermal cycling and more rotations) Customer self-repair parts Customer Self-Repair (CSR) parts are available for many HP LaserJet printers to reduce repair time. More information about the CSR program and benefits can be found at www.hp.com/go/csr-support and www.hp.com/go/csr-faq. Genuine HP replacement parts can be ordered at www.hp.com/buy/parts or by contacting an HP-authorized service or support provider. When ordering, one of the following will be needed: part number, serial number (found on back of printer), product number, or printer name. ● Parts listed as Mandatory self-replacement are to be installed by customers, unless you are willing to pay HP service personnel to perform the repair. For these parts, on-site or return-to-depot support is not provided under the HP printer warranty. ● Parts listed as Optional self-replacement can be installed by HP service personnel at your request for no additional charge during the printer warranty period. Table 3-5 Consumer self-repair parts Item HP LaserJet Keyboard Overlay Kit for Simplified Chinese and Traditional Chinese HP LaserJet Keyboard Overlay Kit Sweden Description Keyboard overlay for China Keyboard overlay for Sweden Self-replacement options Mandatory Part number A7W12A Mandatory A7W14A 40 Chapter 3 Supplies, accessories, and parts ENWW