Parts-HQ is a market leading supplier of replacement parts for a diverse range of products – from consumer electronics and appliances. Through distribution facilities strategically located throughout the world, Parts-HQ supplies new, refurbished exact and compatible alternative parts for nearly 200 top manufacturer brands. With the largest multi-vendor parts inventory in the industry, we provide access to 8+ million parts in our database, helping to ensure you get the parts you need, when you need them.

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Hewlett-Packard (HP) DeskJet 840C Printer Parts

Model Number Finder

Shop for Your Specific model to find parts that fit
  • Showing 176 Product(s)
C4557-40024 - Left Wing
$ 5.74 21609 Holds printed paper after being ejected On Sale

Holds printed paper after being ejected

Save $ 1.81
Was 7.55
C4557-80027 - Length Adjust PAD (Poron)
$ 5.74 21629 Mounted under the fine length adjuster On Sale

Mounted under the fine length adjuster

Save $ 1.81
Was 7.55
C5870-40037 - Length Adjuster
$ 29.38 22128 Media input length adjuster On Sale

Media input length adjuster

Save $ 9.28
Was 38.66
C4557-40085 - Link Pin
$ 35.52 21617 Small plastic piece installed between the pick cam gear and pivot link, See C6429-60025 On Sale

Small plastic piece installed between the pick cam gear and pivot link See C6429-60025

Save $ 11.22
Was 46.74
C4557-40020 - Lower Guide
$ 40.51 21608 Platform for seperator peg, spring and pad On Sale

Platform for seperator peg spring and pad

Save $ 12.79
Was 53.30
C6419-69121 - Main Logic Board (PCA)
$ 44.62 22290 Can be configured for Arabic, Cyrillic, Greek, Hebrew, Lithuanian, Latvian, or Thai fonts Main Logic Board (PCA Can be Configured for Arabic, Cyrillic, Greek, Hebrew, Lithuanian, Latvian, or Thai Font) On Sale

Can be configured for Arabic Cyrillic Greek Hebrew Lithuanian Latvian or Thai fonts Main Logic Board (PCA Can be Configured for Arabic Cyrillic Greek Hebrew Lithuanian Latvian or Thai Font)

Save $ 14.09
Was 58.71
C6409-00007 - Main Logic Board (PCA) EMI Shield
$ 30.31 22233 Main Logic Board (PCA) EMI shield Installed between Main Logic Board (PCA) and Main Logic Board (PCA) Cover On Sale

Main Logic Board (PCA) EMI shield Installed between Main Logic Board (PCA) and Main Logic Board (PCA) Cover

Save $ 9.57
Was 39.88
C6411-40008 - Main Logic PCA Cover
$ 34.19 48368 Has cut outs for the USB interface socket, parallel interface socket, and power module socket On Sale

Has cut outs for the USB interface socket parallel interface socket and power module socket

Save $ 10.80
Was 44.99
C5870-40024 - Oops Flag
$ 5.74 22126 Media sensor. Mounts on the top right edge of the upper paper guide On Sale

Media sensor. Mounts on the top right edge of the upper paper guide

Save $ 1.81
Was 7.55
C4557-40026 - Output Door
$ 5.74 21611 Separates output media from input media On Sale

Separates output media from input media

Save $ 1.81
Was 7.55
C5870-60081 - Paper Input Tray Assembly (Partial)
$ 68.37 22133 Includes only base of tray and pressure plate assembly. Holds paper supply for printer On Sale

Includes only base of tray and pressure plate assembly. Holds paper supply for printer

Save $ 21.59
Was 89.96
C4557-60049 - Paper Input Tray Pressure Plate
$ 28.12 21625 Tray installed in rear of input tray. Used to lift paper stack On Sale

Tray installed in rear of input tray. Used to lift paper stack

Save $ 8.88
Was 37.00
C4557-00031 - Paper Length Adjuster Spring
$ 40.74 21598 Provides tension for paper input length adjuster On Sale

Provides tension for paper input length adjuster

Save $ 12.87
Was 53.61
C4557-00038 - Paper Motor ESD Shield
$ 25.72 48369 Attaches to paper motor bracket On Sale

Attaches to paper motor bracket

Save $ 8.12
Was 33.84
C5870-40022 - Paper Pusher
$ 15.76 22124 Small, spring loaded lever attached to pivot Pushes against left side of paper to maintain right edge alignment (Two used) On Sale

Small spring loaded lever attached to pivot Pushes against left side of paper to maintain right edge alignment (Two used)

Save $ 4.98
Was 20.74
C4557-00035 - Paper Pusher Spring
$ 5.74 21599 Maintains alignment in paper tray On Sale

Maintains alignment in paper tray

Save $ 1.81
Was 7.55
C4557-40098 - Paper Tray Left Inner Panel (Left Cheek Cap)
$ 5.74 21618 Mounts between left wing and left outer panel On Sale

Mounts between left wing and left outer panel

Save $ 1.81
Was 7.55
C4557-40116 - Paper Tray Left Outer Panel (Left Cheek)
$ 41.36 21620 Attaches to left edge of wing frame On Sale

Attaches to left edge of wing frame

Save $ 13.06
Was 54.42
C5870-40019 - Paper Tray Panel (Right Cheek)
$ 5.74 22123 Attaches to the right edge of the wing frame On Sale

Attaches to the right edge of the wing frame

Save $ 1.81
Was 7.55
C4557-40099 - Paper Tray Right Inner Panel (Right Cheek Cap)
$ 41.31 21619 Mounts between right wing and right outer panel On Sale

Mounts between right wing and right outer panel

Save $ 13.05
Was 54.36